CN-121993938-A - Multi-heat pump linkage control method, device, system and storage medium

Abstract

The application relates to the technical field of heat pump control, and discloses a multi-heat pump linkage control method, a device, a system and a storage medium, which are used for balanced control of a plurality of heat pumps, and are capable of meeting load requirements and starting the heat pumps to operate in an optimal interval, so that energy efficiency is improved, energy consumption is reduced, and cost is reduced. The multi-heat pump linkage control method comprises the steps of obtaining a first actual starting number and a plurality of operation condition parameters of a current regulation period of a heat pump centralized control system, determining maximum conversion rates corresponding to all starting heat pumps in a preset heat pump performance monitoring table according to the plurality of operation condition parameters, determining a centralized control conversion rate reference value according to the maximum conversion rates corresponding to the plurality of heat pumps to obtain a target operation frequency interval corresponding to the centralized control conversion rate reference value, and carrying out linkage control on all the heat pumps in the heat pump centralized control system according to the plurality of operation condition parameters, the first actual starting number and the target operation frequency interval.

Inventors

• JIANG HAO
• MAI HAOXIAN
• LEI PENGFEI
• ZONG YI
• Liang Zonghuo
• LIU ZHILI

Assignees

• 广东芬尼克兹节能设备有限公司

Dates

Publication Date

20260508

Application Date

20241101

Claims (20)

1. 1. The multi-heat pump linkage control method is characterized by comprising the following steps of: Acquiring a first actual starting number and a plurality of operation condition parameters of a current regulation period of a heat pump centralized control system; determining the corresponding maximum conversion rate of each starting heat pump in a preset heat pump performance monitoring table according to the plurality of operation condition parameters; determining a centralized control conversion rate reference value according to the maximum conversion rate corresponding to a plurality of heat pumps, and obtaining a target operation frequency interval corresponding to the centralized control conversion rate reference value; and carrying out linkage control on each heat pump in the heat pump centralized control system according to the plurality of operation condition parameters, the first actual starting quantity and the target operation frequency interval.
2. 2. The multi-heat pump coordinated control method according to claim 1, wherein determining a centralized control conversion rate reference value according to a maximum conversion rate corresponding to a plurality of heat pumps, to obtain a target operation frequency interval corresponding to the centralized control conversion rate reference value, comprises: Determining a maximum conversion rate median according to the maximum conversion rates corresponding to the heat pumps, and determining the maximum conversion rate median as a centralized control conversion rate reference value; And determining a target operation frequency interval in the heat pump performance monitoring table according to the centralized control conversion rate reference value.
3. 3. The method of claim 1, wherein the performing coordinated control on each heat pump in the heat pump centralized control system according to the plurality of operating condition parameters, the first actual start-up number and the target operating frequency interval includes: When the heat pump centralized control system is allowed to operate, determining the target starting-up number of the next regulation period based on the operation condition parameters; if the target starting number is equal to the first actual starting number, the frequency limit of the starting heat pump is released, so that the starting heat pump is adaptively adjusted to the corresponding maximum conversion rate; And if the target starting number is not equal to the first actual starting number, starting or stopping the heat pump according to a first number difference value between the target starting number and the first actual starting number and the target operating frequency interval, and performing frequency limitation on the starting heat pump according to the target operating frequency interval.
4. 4. The multi-heat pump coordinated control method according to claim 3, wherein starting or stopping a heat pump according to the first number difference between the target start-up number and the first actual start-up number and the target operation frequency interval, and frequency limiting the starting heat pump according to the target operation frequency interval, comprises: if the absolute value of the first quantity difference value is smaller than a preset quantity threshold value, the frequency limitation of the starting heat pump is released, the steady-state average frequency of the heat pump centralized control system is determined, and the heat pump is started or stopped according to the steady-state average frequency, the target operation frequency interval and the first quantity difference value; And if the absolute value of the first quantity difference value is larger than or equal to the quantity threshold value, starting or stopping the heat pump based on the first quantity difference value, and controlling the operating frequency of the starting heat pump not to exceed the optimal centralized control frequency point in the target operating frequency interval.
5. 5. The multi-heat pump coordinated control method according to claim 1, wherein if the heat pump centralized control system receives a centralized control output limiting parameter; After determining a centralized control conversion rate reference value according to the maximum conversion rate corresponding to the plurality of heat pumps and obtaining a target operation frequency interval corresponding to the centralized control conversion rate reference value, before performing coordinated control on each heat pump in the heat pump centralized control system according to the plurality of operation condition parameters, the first actual starting number and the target operation frequency interval, the method further comprises: determining the current limited demand output capacity of the heat pump centralized control system according to the total output capacity of the heat pump centralized control system and the output limiting parameter; and determining the quantity of the permitted starts according to the limited required output capacity and the optimal centralized control output load ratio corresponding to the optimal centralized control frequency point in the target operating frequency interval.
6. 6. The multi-heat pump coordinated control method according to claim 5, wherein the determining the number of permitted starts according to the limited demand output capacity and the optimal centralized control output load ratio corresponding to the optimal centralized control frequency point in the target operation frequency interval comprises: determining a limited demand heat pump quantity from a ratio of the limited demand output capacity to the optimal centralized control output load ratio; If the quantity of the heat pumps with limited requirements is smaller than the total quantity of the heat pumps of the heat pump centralized control system, determining the quantity of the heat pumps with limited requirements as the quantity of the allowed startup; And if the quantity of the heat pumps with limited requirements is larger than or equal to the total quantity of the heat pumps, determining the total quantity of the heat pumps as the quantity of the allowed start-up.
7. 7. The method of claim 5, wherein the performing coordinated control on each heat pump in the heat pump centralized control system according to the plurality of operating condition parameters, the first actual start-up number and the target operating frequency interval includes: if the first actual starting number is larger than the allowed starting number, starting the heat pump with the longest running time is stopped in sequence until the adjusted starting number of the heat pump is smaller than or equal to the allowed starting number; And if the first actual starting number is not greater than the allowed starting number, determining a first target limiting frequency for starting the heat pump based on the optimal centralized control frequency point, and performing frequency limitation on the starting heat pump according to the first target limiting frequency.
8. 8. The method according to claim 7, wherein determining the first target limiting frequency for starting the heat pump based on the optimal centralized control frequency point if the first actual start-up number is not greater than the allowable start-up number comprises: If the first actual starting number is smaller than the allowed starting number, controlling the running frequency of each starting heat pump not to exceed the optimal centralized control frequency point; If the first actual starting number is equal to the allowed starting number, determining a limited centralized control output frequency according to the limited required output capacity, the allowed starting number and a preset maximum limiting frequency, and controlling the running frequency of each starting heat pump not to exceed the limited centralized control output frequency.
9. 9. The multi-heat pump coordinated control method according to claim 7 or 8, wherein the plurality of operating condition parameters include an initial set temperature and an actual operating temperature; after the frequency limiting the start-up heat pump according to the first target limiting frequency, further comprising: Determining the target starting number of the next regulation period according to the initial set temperature and the actual working temperature; and controlling the starting or stopping of the heat pump in the heat pump centralized control system according to the target starting number, the first actual starting number, the allowed starting number and the target operating frequency interval.
10. 10. The multi-heat pump coordinated control method according to claim 1, wherein after determining a centralized control conversion rate reference value according to a maximum conversion rate corresponding to a plurality of heat pumps and obtaining a target operation frequency interval corresponding to the centralized control conversion rate reference value, before performing coordinated control on each heat pump in the heat pump centralized control system according to the plurality of operation condition parameters, the first actual start-up number and the target operation frequency interval, the method further comprises: acquiring system configuration information, current time period electricity price, next time period electricity price and current corresponding electric energy transaction direction corresponding to the comprehensive energy management system; Generating a target energy consumption mode instruction according to the current time period electricity price, the target system configuration information, the next time period electricity price, the current corresponding electric energy transaction direction and a preset heat pump energy consumption strategy table, and sending the target energy consumption mode instruction to the heat pump centralized control system.
11. 11. The method of claim 10, wherein the performing coordinated control on each heat pump in the heat pump centralized control system according to the plurality of operating condition parameters, the first actual start-up number and the target operating frequency interval includes: And controlling the heat pump centralized control system according to the target energy consumption mode instruction, the plurality of operation condition parameters, the first actual starting quantity, the optimal centralized control frequency point in the target operation frequency interval and a preset heat pump centralized control action table.
12. 12. The multi-heat pump coordinated control method of claim 11, wherein said plurality of operating condition parameters comprises a current operating temperature and an initial set temperature; the controlling the heat pump centralized control system according to the target energy consumption mode instruction, the plurality of operation condition parameters, the optimal centralized control frequency point and a preset heat pump centralized control action table comprises the following steps: Determining a target multi-heat pump coordinated control strategy according to the target energy consumption mode instruction, the initial set temperature and a preset heat pump centralized control action table; determining a target temperature interval in the target multi-heat pump linkage control strategy according to the current working temperature; And controlling the heat pump centralized control system based on the target temperature interval, the first actual starting quantity and the optimal centralized control frequency point.
13. 13. The multi-heat pump coordinated control method according to claim 12, wherein the system configuration information comprises a photovoltaic device, and the target energy consumption mode instruction is an intelligent mode instruction; the controlling the heat pump centralized control system based on the target temperature interval, the first actual starting-up number and the optimal centralized control frequency point comprises the following steps: If the target temperature interval is a low-temperature interval, controlling the heat pump centralized control system to operate in a self-adaptive mode according to the current working temperature, a target set temperature and the first actual starting quantity, and allowing auxiliary heating to be started when the operation time of the low-temperature interval exceeds a first preset duration, wherein the target set temperature is the set temperature after the initial set temperature energy storage compensation; And if the target temperature interval is a medium temperature interval or a high temperature interval, controlling the heat pump centralized control system according to the current power selling, the current working temperature, the target set temperature, the first actual starting quantity and the optimal centralized control frequency point.
14. 14. The multi-heat pump coordinated control method according to claim 12, wherein the target energy consumption mode instruction is a low-power consumption mode instruction; the controlling the heat pump centralized control system based on the target temperature interval, the first actual starting-up number and the optimal centralized control frequency point comprises the following steps: If the target temperature interval is a low temperature interval, controlling the operation load of the heat pump centralized control system to not exceed the optimal centralized control output load ratio corresponding to the optimal centralized control frequency point according to the current working temperature, the initial set temperature and the first actual starting quantity, and releasing the load limitation when the operation time of the low temperature interval exceeds a first preset duration; And if the target temperature interval is a medium temperature interval or a high temperature interval, controlling each starting heat pump in the heat pump centralized control system to stand by.
15. 15. The multi-heat pump coordinated control method according to claim 12, wherein the target energy consumption mode instruction is an energy saving mode instruction; the controlling the heat pump centralized control system based on the target temperature interval, the first actual starting-up number and the optimal centralized control frequency point comprises the following steps: If the target temperature interval is a low temperature interval, controlling the heat pump centralized control system to operate in a self-adaptive mode according to the current working temperature, the initial set temperature and the first actual starting quantity, and allowing auxiliary heating to be started when the operation time of the low temperature interval exceeds a first preset duration; if the target temperature interval is a medium temperature interval, controlling the operation load of the heat pump centralized control system not to exceed the optimal centralized control output load ratio corresponding to the optimal centralized control frequency point; And if the target temperature interval is a high-temperature interval, controlling each starting heat pump in the heat pump centralized control system to stand by.
16. 16. The multi-heat pump coordinated control method according to claim 1, being applied to a comprehensive energy management system, wherein the comprehensive energy management system at least comprises a boiler, and the centralized control conversion rate reference value is a centralized control COP reference value; After determining a centralized control conversion rate reference value according to the maximum conversion rate corresponding to the plurality of heat pumps and obtaining a target operation frequency interval corresponding to the centralized control conversion rate reference value, before performing coordinated control on each heat pump in the heat pump centralized control system according to the plurality of operation condition parameters, the first actual starting number and the target operation frequency interval, the method further comprises: Acquiring the current electricity price and the natural gas price; and determining a cost balance point of the heat of the preparation unit between the heat pump and the boiler according to the current period electricity price and the natural gas price, and obtaining a corresponding balance point COP value of the heat pump.
17. 17. The method of claim 16, wherein the performing coordinated control on each heat pump in the heat pump centralized control system according to the plurality of operating condition parameters, the first actual start-up number and the target operating frequency interval includes: And performing heating control on the integrated energy management system according to the centralized control COP reference value, the balance point COP value, the plurality of operation condition parameters, the first actual starting quantity, the target operation frequency interval and a preset heating control strategy table.
18. 18. The multi-heat pump coordinated control method of claim 17, wherein said plurality of operating condition parameters comprises a current ambient temperature and an initial set temperature; The heating control of the integrated energy management system according to the centralized control COP reference value, the balance point COP value, the plurality of operation condition parameters, the first actual starting-up number, the target operation frequency interval and a preset heating control strategy table comprises: And if the centralized control COP reference value is greater than or equal to the balance point COP value, the current environment temperature is less than or equal to a preset heat pump supercritical temperature, and the current environment temperature is greater than the heat pump safety critical temperature, controlling the operating frequency of the heat pump in the heat pump centralized control system to be not more than the optimal centralized control frequency point in the target operating frequency interval according to the current working temperature, the initial set temperature and the first actual starting quantity.
19. 19. The multi-heat pump coordinated control method of claim 17, wherein said integrated energy management system further comprises photovoltaic equipment; The plurality of operating condition parameters include a current ambient temperature and an initial set temperature; The heating control of the integrated energy management system according to the centralized control COP reference value, the balance point COP value, the plurality of operation condition parameters, the first actual starting-up number, the target operation frequency interval and a preset heating control strategy table comprises: If the centralized control COP reference value is smaller than the balance point COP value and the current environment temperature is larger than the heat pump safety critical temperature, when the target energy consumption mode instruction is an intelligent mode instruction, controlling a heat pump centralized control system to heat preferentially according to the current working temperature, the initial set temperature and the first actual starting quantity, and controlling the boiler to assist; And when the target energy consumption mode instruction is not an intelligent mode instruction, controlling to start the heat pump to stop, and controlling the boiler to heat according to the current working temperature and the initial set temperature.
20. 20. A multi-heat pump coordinated control device, characterized in that the multi-heat pump coordinated control device comprises: the acquisition module is used for acquiring the first actual starting number and a plurality of operation condition parameters of the current regulation period of the heat pump centralized control system; The processing module is used for determining the corresponding maximum conversion rate of each starting heat pump in a preset heat pump performance monitoring table according to the plurality of operation condition parameters; The reference value determining module is used for determining a centralized control conversion rate reference value according to the maximum conversion rate corresponding to the plurality of heat pumps, and obtaining a target operation frequency interval corresponding to the centralized control conversion rate reference value; And the heat pump control module is used for carrying out linkage control on each heat pump in the heat pump centralized control system according to the plurality of operation condition parameters, the first actual starting quantity and the target operation frequency interval.

Description

Multi-heat pump linkage control method, device, system and storage medium Technical Field The present application relates to the field of heat pump control technologies, and in particular, to a method, an apparatus, a system, and a storage medium for controlling multiple heat pumps in a coordinated manner. Background Along with the continuous increase of energy consumption, the improvement of energy utilization efficiency is an important topic gradually, the control scheme of the heat pump is usually aimed at the control of a single heat pump, and when in a large commercial scene, a plurality of heat pumps are often needed to meet the demands of users. The heat pump centralized control system aims at carrying out unified management and intelligent scheduling on a plurality of heat pumps, and the total output capacity of the heat pump centralized control system can be controlled by controlling the starting quantity of the heat pumps, but the traditional multi-heat pump linkage control essence is to control by taking a single heat pump as a main body, so that the operation quantity is large, the balanced control cannot be really realized, the load demand can be hardly met during normal working, the started heat pump can be operated in an optimal interval as much as possible, and the whole energy efficiency of the traditional multi-heat pump linkage control method is low. Disclosure of Invention The application provides a multi-heat pump linkage control method, a device, a system and a storage medium, which are used for solving the problems that the traditional multi-heat pump linkage control method cannot really realize balanced control, is difficult to meet load requirements in normal operation, and can enable the started heat pump to operate in an optimal interval as far as possible, so that the overall energy consumption cannot be effectively reduced. The first aspect of the application provides a multi-heat pump linkage control method, which comprises the steps of obtaining a first actual starting number and a plurality of operation condition parameters of a current regulation period of a heat pump centralized control system, determining a maximum conversion rate corresponding to each starting heat pump in a preset heat pump performance monitoring table according to the plurality of operation condition parameters, determining a centralized control conversion rate reference value according to the maximum conversion rate corresponding to the plurality of heat pumps, obtaining a target operation frequency interval corresponding to the centralized control conversion rate reference value, and carrying out linkage control on each heat pump in the heat pump centralized control system according to the plurality of operation condition parameters, the first actual starting number and the target operation frequency interval. The application provides a multi-heat pump linkage control device, which comprises an acquisition module, a control module and a control module, wherein the acquisition module is used for acquiring the first actual starting-up number and a plurality of operation condition parameters of the current regulation period of a heat pump centralized control system; The processing module is used for determining the corresponding maximum conversion rate of each starting heat pump in a preset heat pump performance monitoring table according to the plurality of operation condition parameters; The reference value determining module is used for determining a centralized control conversion rate reference value according to the maximum conversion rate corresponding to the plurality of heat pumps, and obtaining a target operation frequency interval corresponding to the centralized control conversion rate reference value; And the heat pump control module is used for carrying out linkage control on each heat pump in the heat pump centralized control system according to the plurality of operation condition parameters, the first actual starting quantity and the target operation frequency interval. The third aspect of the application provides a heat pump centralized control system, which comprises a memory and at least one processor, wherein the memory stores instructions, and the at least one processor calls the instructions in the memory so that the heat pump centralized control system executes the multi-heat pump coordinated control method. The fourth aspect of the application provides an integrated energy management system, which comprises a memory and at least one processor, wherein the memory stores instructions, and the at least one processor calls the instructions in the memory so that the integrated energy management system executes the multi-heat pump coordinated control method. A fifth aspect of the present application provides a computer readable storage medium having instructions stored therein which, when run on a computer, cause the computer to perform the multi-heat pump coordinated control method des