CN-120646037-B - Control method and electricity-saving analysis method for air conditioning system of railway vehicle

CN120646037BCN 120646037 BCN120646037 BCN 120646037BCN-120646037-B

Abstract

The invention provides a control method and a power saving analysis method of a rail vehicle air conditioning system, and relates to the technical field of control of the rail vehicle air conditioning system. The control method comprises the steps of utilizing at least one environmental parameter sensor distributed in each carriage to collect at least one environmental parameter data, classifying and marking the collected environmental parameter data according to carriage numbers, generating an execution command for the zone control of the railway vehicle based on the collected at least one environmental parameter data and a preset air conditioner regulation strategy, and sending the execution command to an execution unit of the corresponding carriage so that the execution unit responds to the execution command and executes dynamic regulation to realize the zone control of the air conditioning system of the railway vehicle. The invention obviously improves the comfort, the reliability and the energy utilization efficiency of the air conditioning system of the railway vehicle through the decisions of partition control, dynamic adjustment, intelligent management and data driving, and simultaneously enhances the adaptability and the flexibility of the system.

Inventors

MIAO YONGKE
SHU XIAOYU
CAI HONGKUN
Weng Zhiqi

Assignees

浙江纵驰环境科技有限公司

Dates

Publication Date: 20260512
Application Date: 20250625

Claims (5)

1. A method for controlling an air conditioning system of a railway vehicle, wherein the air conditioning system of the railway vehicle comprises at least one environmental parameter sensor, a control center and an execution unit, the execution unit comprises an air circulation system, a temperature regulation module and a humidity regulation module, the temperature regulation module comprises a compressor and a motor, the method for controlling the air conditioning system of the railway vehicle is applied to the control center, and the method for controlling the air conditioning system of the railway vehicle comprises the following steps: Collecting at least one environmental parameter data by using the at least one environmental parameter sensor distributed in each carriage, and classifying and marking the collected environmental parameter data according to carriage numbers, wherein the at least one environmental parameter data comprises an in-car temperature, an out-car temperature, a preset temperature, an in-car humidity, a carbon dioxide concentration, a passenger flow quantity and an out-car illumination intensity; Based on the collected at least one environmental parameter data and a preset air conditioning regulation strategy, generating an execution command for the zone control of the railway vehicle, sending the execution command to an execution unit of a corresponding carriage, responding to the execution command by the execution unit, and executing dynamic regulation to realize the zone control of an air conditioning system of the railway vehicle; wherein generating the execution command comprises: calculating cabin air conditioning power generated from key parameters ; Calculating temperature-controlled power according to : Wherein, the At the temperature of the preset temperature, the temperature of the alloy is equal to the preset temperature, Is the temperature of the interior of the vehicle, Is the temperature of the outside of the vehicle, As a function of the integral variable, For the thermal conductivity of the vehicle, 、 Respectively the weight coefficient when When the value is negative, indicating that the air conditioning system is in a heating mode; When the humidity parameter data in the vehicle exceeds the preset upper limit value, starting the condensation dehumidification function of the humidity adjusting module, adjusting the air supply humidity and calculating the air conditioning power required by dehumidification ; The air circulation system comprises a fresh air system and an internal circulation system, wherein the air circulation system generates an execution command for the zone control of the railway vehicle based on the collected at least one environmental parameter data and a preset air conditioning regulation strategy, when the carbon dioxide concentration exceeds a preset value, the fresh air system is started, and the compensation power of the compressor is calculated based on the detected flow parameter of the fresh air and the temperature outside the vehicle To ensure the stability of the air supply temperature; calculating correction power based on passenger flow quantity and illumination intensity in carriage And obtaining the corrected output power of the air conditioner in the carriage according to the following formula Wherein, the The number of the carriage is given to the carriage, 0 In summer and 1 in winter, at the output power Executing adjustment, preventing the air conditioner from running at full power, and reducing temperature control oscillation; the method further comprises the steps of power saving analysis, namely acquiring historical power consumption data of an air conditioning system of the target railway vehicle and historical operation data affecting power consumption, calculating condition mutual information CMI of each parameter and energy consumption according to the acquired historical power consumption data and the historical operation data affecting power consumption, screening parameters with CMI being more than 0.3 as key influence factors affecting power consumption to enter a quadratic inequality optimization model QUBO, and calculating an objective function value on a quantum calculation simulator based on the QUBO model : Wherein, the Is a parameter CMI value of (2) Is a parameter And parameters Is used for the redundancy of the (c) in the (c), As a result of the empirical value, And Respectively as parameters Sum parameters Is used for the decision variables of (a), For the total number of decision variables by comparing objective function values Screening to obtain an optimal parameter combination; And adjusting a preset air conditioner regulation strategy according to the screened optimal parameter combination and the environmental parameter data.
2. The method for controlling an air conditioning system for a railway vehicle according to claim 1, wherein the number of passenger flows is calculated by using a passenger flow counter installed at an inlet and an outlet of a car and at a junction of adjacent cars, and the intensity of illumination is measured by using an illumination sensor installed outside the car.
3. A control method of an air conditioning system for a railway vehicle according to claim 1, wherein, The air circulation system is used for independently supplying air to each carriage, the temperature adjusting module is used for adjusting air supply temperature, and the humidity adjusting module is used for adjusting air supply humidity.
4. The method according to claim 1, wherein the compressor and the motor are each provided with a variable frequency controller, and the variable frequency controller adjusts the air supply temperature and the air supply amount according to the execution command.
5. The method according to claim 1, wherein a flow detection sensor is provided at the fresh air system, and the temperature adjustment module calculates the compensation power of the compressor based on the detected flow parameter of the fresh air and the temperature outside the vehicle, so as to ensure the stability of the supply air temperature.

Description

Control method and electricity-saving analysis method for air conditioning system of railway vehicle Technical Field The invention relates to the technical field of control of air conditioning systems of railway vehicles, in particular to a control method and a power saving analysis method of an air conditioning system of a railway vehicle. Background The current track air conditioning technology takes a centralized cooling, variable frequency control and heat recovery system as a core, and energy efficiency optimization is realized through a magnetic suspension direct expansion technology, an aluminum corrugated pipe heat exchanger and SVPWM variable frequency regulation. However, the system still faces the technical bottlenecks of concentrated heat loss of the cooling pipelines, insufficient extreme climate adaptability, frequent defrosting of condensation dehumidification and the like. The industry breaks through energy efficiency ceilings through intelligent upgrading and new material application, the existing rail vehicle air conditioning systems mostly adopt a centralized control strategy, and the power and the air quantity of a compressor are uniformly regulated after the average environmental parameters of the whole train are collected through a single sensor. However, the technology has the obvious defects that ‌ has high energy consumption and extensive adjustment, the centralized control cannot distinguish environmental differences among carriages, and the long-term full-power operation of the compressor is caused, so that the electric energy waste is caused. For example, a less-passenger car may use the same cooling intensity as a full-load car, increasing energy consumption and reducing comfort. Disclosure of Invention The invention aims to provide a control method and a power saving analysis method of a rail vehicle air conditioning system. In order to achieve the above purpose, the embodiment of the invention provides a control method of a rail vehicle air conditioning system, which comprises at least one environmental parameter sensor, a control center and an execution unit, wherein the control method of the rail vehicle air conditioning system is applied to the control center, and comprises the steps of acquiring at least one environmental parameter data by using the at least one environmental parameter sensor distributed in each carriage, classifying and marking the acquired environmental parameter data according to carriage numbers, generating an execution command for the zoning control of the rail vehicle based on the acquired at least one environmental parameter data and a preset air conditioning regulation strategy, and sending the execution command to the execution unit of the corresponding carriage, so that the execution unit responds to the execution command and executes dynamic regulation to realize the zoning control of the rail vehicle air conditioning system. Further, the at least one environmental parameter data includes a key parameter including an in-vehicle temperature, an out-of-vehicle temperature, an in-vehicle humidity, and carbon dioxide corresponding to the individual cars, and a correction parameter including a number of passenger flows and an illumination intensity outside the car. Further, the number of passenger flows is calculated by using a passenger flow counter installed at an inlet and an outlet of a carriage and at a junction between adjacent carriages, and the illumination intensity is measured by using an illumination sensor installed outside the carriage. The execution unit further comprises an air circulation system, a temperature adjusting module and a humidity adjusting module, wherein the air circulation system is used for independently supplying air to each carriage, the temperature adjusting module is used for adjusting the air supply temperature, and the humidity adjusting module is used for adjusting the air supply humidity. Further, the method for generating the execution command for the zone control of the railway vehicle based on the collected at least one environmental parameter data and the preset air conditioner regulation strategy comprises the steps of calculating the target power of the air conditioner according to the preset temperature, the humidity in the vehicle, the temperature difference between the inside and the outside of the vehicle and the heat conductivity coefficient of the carriage, correcting the target power of the air conditioner based on the number of passenger flows in the carriage and the illumination intensity, executing regulation on the target power of the air conditioner, preventing the full-power operation of the air conditioner, and reducing the temperature control oscillation. Further, the temperature adjusting module comprises a compressor and a motor, wherein the compressor and the motor are both provided with a variable frequency controller, and the variable frequency controller adjusts the air supply temperat