CN-121993839-A - Combined control method, system and storage medium based on solar energy and heat pump heat supply

Abstract

The application relates to the technical field of heat system control, and discloses a combined control method, a system and a storage medium based on solar energy and heat pump heat supply, wherein the method is based on a solar heat supply device, a heat pump device and a heat storage tank for supplying heat outwards, and the heat storage tank is respectively communicated with the solar heat supply device and the heat pump device; the intelligent heat supply switching method comprises the steps of collecting temperature data of solar energy, a heat pump and a heat storage tank through a temperature sensor, obtaining the starting temperature of the heat pump and the heat storage temperature of the heat storage tank, realizing intelligent heat supply switching of the solar energy and the heat pump according to the magnitude relation between the solar energy temperature and the heat storage temperature, simultaneously calculating an illumination average value by combining the data of the illumination sensor, dynamically adjusting the heat storage temperature, and adapting the starting temperature of the heat pump according to the ratio of the solar energy to the heat pump temperature. The method effectively solves the problems that solar heat supply is limited by natural conditions and temperature fluctuation is large, realizes the cooperative operation of solar energy and a heat pump, maximally utilizes renewable energy sources, reduces energy consumption and improves heat supply stability and reliability.

Inventors

• ZHANG XIANGYANG

Assignees

• 上海南雨智慧能源系统有限公司

Dates

Publication Date

20260508

Application Date

20260401

Claims (10)

1. 1. The combined control method based on solar energy and heat pump heat supply is characterized in that the combined control method is based on a solar energy heat supply device, a heat pump device and a heat storage tank for supplying heat outwards, wherein the heat storage tank is respectively communicated with the solar energy heat supply device and the heat pump device; the method comprises the following steps: collecting heat supply temperature of a solar heat supply device to generate solar temperature data based on a plurality of preset temperature sensors, collecting heat supply temperature of a heat pump device to generate heat pump temperature data, and collecting real-time temperature data of a heat storage tank; acquiring starting temperature data of a heat pump device and heat storage temperature data of a heat storage tank; If the solar temperature data is greater than the heat storage temperature data, the heat pump device is turned off, the connection between the heat pump device and the heat storage tank is cut off, the solar heat supply device is controlled to be connected with the heat storage tank and heat energy is injected into the heat storage tank, and otherwise, the connection between the solar heat supply device and the heat storage tank is cut off; After the connection between the solar heat supply device and the heat storage tank is cut off, if the real-time temperature data is smaller than the starting temperature data, the heat pump device is controlled to be connected with the heat storage tank, and the heat pump device is started to inject heat energy into the heat storage tank; Acquiring a plurality of illumination data based on a preset illumination sensor, calculating an illumination average value according to the plurality of illumination data, calculating an illumination adjustment value according to the illumination average value and preset average reference data, and adjusting heat storage temperature data according to positive correlation of the illumination adjustment value; And calculating the ratio of the solar temperature data to the heat pump temperature data as a device temperature ratio, and adjusting the starting temperature data according to the negative correlation of the device temperature ratio.
2. 2. The method for controlling heat supply by solar energy and heat pump according to claim 1, wherein the step of collecting the heat supply temperature of the heat pump device to generate heat pump temperature data further comprises the steps of: Acquiring environmental temperature data based on a preset temperature sensor, calibrating the heat pump temperature data and the environmental temperature data into heat pump calibration data and environmental calibration data, and calculating the ratio of the heat pump calibration data to the environmental calibration data as an environmental ratio; Calculating the rising speed of heat pump temperature data in a preset collecting time length to obtain heat pump temperature rising data, and calculating the ratio of the heat pump temperature rising speed to a preset reference temperature rising speed as a temperature rising ratio; And obtaining a starting regulating value by weighting calculation according to the environmental ratio and the temperature rise ratio, and regulating starting temperature data according to positive correlation of the starting regulating value.
3. 3. The combined control method based on solar energy and heat pump heating according to claim 1, wherein the step of controlling the heat pump device to inject thermal energy into the heat storage tank further comprises the sub-steps of: When the real-time temperature data is smaller than the starting temperature data, calculating a difference value between the starting temperature data and the real-time temperature data as a first temperature difference value, and adjusting the power of the heat pump device based on a first coefficient negative correlation according to a first temperature ratio according to the first temperature difference value and the heat storage temperature data as a first temperature ratio; When the real-time temperature data is larger than the starting temperature data, calculating a difference value between the real-time temperature data and the starting temperature data as a second temperature difference value, and adjusting the power of the heat pump device based on a second coefficient negative correlation according to a second temperature ratio according to a second temperature difference value and a second heat storage temperature data ratio; wherein the first coefficient > the second coefficient >0.
4. 4. The combined control method based on solar energy and heat pump heating according to claim 1, wherein the step of controlling the heat pump device to inject thermal energy into the heat storage tank further comprises the sub-steps of: acquiring environmental temperature data based on a preset temperature sensor; When the heat pump device is in a rated power working state, acquiring a plurality of heat pump temperature data in a preset heating time period, and matching a heat pump reference curve from a preset environment database according to the environment temperature data and the lowest heat pump temperature data, wherein the heat pump temperature data is smaller than the heat storage temperature data after the heating time period; Drawing a heat pump temperature curve according to the plurality of heat pump temperature data; Calculating the heat pump curve difference area according to the heat pump reference curve and the heat pump temperature curve; if the heat pump curve difference area is larger than the preset heat pump reference difference area, carrying out abnormal prompt on the heat pump device, otherwise, regulating the heating time according to the positive correlation of the heat pump curve difference area.
5. 5. The combined control method based on solar energy and heat pump heating according to claim 1, wherein the step of controlling the solar heating device to inject heat energy into the heat storage tank further comprises the sub-steps of: Acquiring environmental temperature data based on a preset temperature sensor, and matching a solar energy reference curve from a preset environmental database according to the environmental temperature data and an illumination average value; Acquiring a plurality of solar temperature data in a preset illumination time period, and drawing a solar temperature curve according to the plurality of solar temperature data; Calculating the solar curve difference area according to the solar reference curve and the solar temperature curve; if the solar curve difference area is larger than the preset solar reference difference area, abnormal prompt of the solar heating device is carried out, otherwise, the illumination time is adjusted according to positive correlation of the solar curve difference area.
6. 6. The solar and heat pump heating-based combined control method according to claim 1, further comprising the steps of: Obtaining a plurality of illumination data based on illumination sensors located at a plurality of different locations; Calculating an illumination average value and illumination uniformity according to the plurality of illumination data, calculating an intensity intermediate value according to the illumination average value and a preset intensity reference value, calculating a uniform intermediate value according to the illumination uniformity and the uniform reference value, and calculating an illumination contrast value according to the intensity intermediate value and the uniform intermediate value in a weighted manner; And if the illumination contrast value is larger than the preset reference contrast value, adjusting the working power of the heat pump device according to the negative correlation of the illumination contrast value.
7. 7. The solar and heat pump heating-based combined control method according to claim 1, further comprising the steps of: Obtaining a plurality of illumination data based on illumination sensors located at a plurality of different locations; calculating an illumination average value and illumination uniformity according to the plurality of illumination data, calculating an intensity intermediate value according to the illumination average value and a preset intensity reference value, and calculating a uniform intermediate value according to the illumination uniformity and a uniform reference value; Calculating a plurality of intensity intermediate values and a plurality of uniform intermediate values in the illumination duration, calculating the change speed of the intensity intermediate values as a first illumination speed, calculating the change speed of the uniform intermediate values as a second illumination speed, calculating the short-time stability according to the first illumination speed and the second illumination speed in a weighted manner, and adjusting the working power of the heat pump device according to the short-time stability in a negative correlation manner.
8. 8. The solar and heat pump heating-based combined control method according to claim 1, further comprising the steps of: Obtaining a plurality of illumination data based on illumination sensors located at a plurality of different locations; Calculating an illumination average value and illumination uniformity according to the plurality of illumination data, calculating an intensity intermediate value according to the illumination average value and a preset intensity reference value, calculating a uniform intermediate value according to the illumination uniformity and the uniform reference value, and calculating an illumination contrast value according to the intensity intermediate value and the uniform intermediate value in a weighted manner; When the illumination contrast value is larger than the preset reference contrast value and the solar temperature data is higher than the heat storage temperature data, controlling the plurality of heat storage tanks to operate in a parallel mode, and synchronously receiving heat energy injected by the solar heat supply device; When the illumination contrast value is smaller than the preset reference contrast value and the real-time temperature data of any heat storage tank is lower than the starting temperature data, the plurality of heat storage tanks are controlled to operate in a series mode, so that heat energy output by the heat pump device sequentially flows through each heat storage tank to finish step heat exchange.
9. 9. A solar and heat pump heating based combined control system comprising a processor in which the steps of the solar and heat pump heating based combined control method according to any one of claims 1-8 are performed.
10. 10. A storage medium, characterized in that the storage medium has stored therein a program which, when executed by a processor, realizes the steps of the combined solar and heat pump heating control method according to any one of claims 1-8.

Description

Combined control method, system and storage medium based on solar energy and heat pump heat supply Technical Field The application relates to the technical field of heat system control, in particular to a combined control method, a system and a storage medium based on solar energy and heat pump heat supply. Background The hot water system is one of the core infrastructures in resident life, commercial operation and industrial production, and plays a key role in providing stable hot water supply. In commercial and industrial scenes, the hot water meeting the temperature requirement is provided for links such as catering, washing and production processes, and is an important support for guaranteeing operation continuity and product quality. Meanwhile, the energy utilization efficiency and the operation stability of the hot water system are significant in reducing energy consumption, reducing operation cost and achieving the aims of energy conservation and emission reduction. The solar water heating system has remarkable energy saving and environmental protection advantages due to the fact that the solar water heating system depends on renewable energy, and is widely applied to multiple fields. The system can directly convert solar energy into heat energy to heat cold water without consuming fossil energy such as coal, natural gas and the like, can effectively reduce the energy use cost, simultaneously reduce the emission of pollutants such as carbon dioxide, sulfur dioxide and the like, and is in line with the current development concept of green low carbon. In addition, the solar energy resource is widely distributed, is convenient to acquire and has unlimited reserves, is not strictly limited by regional resource endowments, is suitable for hot water supply requirements under different climatic conditions, can greatly improve the autonomy of energy supply, and relieves the traditional energy supply pressure. However, the operation stability of the solar water heating system is severely limited by natural conditions, and obvious inherent defects exist. The solar energy acquisition depends on illumination conditions, is obviously influenced by weather change, has higher heat collecting efficiency when the illumination is sufficient in sunny days, and greatly attenuates heat collecting capacity in severe weather such as overcast and rainy days, haze days and the like, meanwhile, the system has day and night intermittence, cannot collect solar energy when no illumination is carried out at night, can only rely on energy storage or auxiliary heating, and the factors cause the large fluctuation of the temperature of hot water output by a solar water heating system and unstable water supply quantity, so that the requirement of a user on heat supply stability is difficult to meet. Disclosure of Invention In order to improve the stability of heat supply, the application provides a combined control method, a system and a storage medium based on solar energy and heat pump heat supply. In a first aspect, the application provides a combined control method based on solar energy and heat pump heat supply, which adopts the following technical scheme: The combined control method based on solar energy and heat pump heat supply is based on a solar heat supply device, a heat pump device and a heat storage tank for supplying heat outwards, wherein the heat storage tank is respectively communicated with the solar heat supply device and the heat pump device, and the method comprises the following steps: collecting heat supply temperature of a solar heat supply device to generate solar temperature data based on a plurality of preset temperature sensors, collecting heat supply temperature of a heat pump device to generate heat pump temperature data, and collecting real-time temperature data of a heat storage tank; acquiring starting temperature data of a heat pump device and heat storage temperature data of a heat storage tank; If the solar temperature data is greater than the heat storage temperature data, the heat pump device is turned off, the connection between the heat pump device and the heat storage tank is cut off, the solar heat supply device is controlled to be connected with the heat storage tank and heat energy is injected into the heat storage tank, and otherwise, the connection between the solar heat supply device and the heat storage tank is cut off; After the connection between the solar heat supply device and the heat storage tank is cut off, if the real-time temperature data is smaller than the starting temperature data, the heat pump device is controlled to be connected with the heat storage tank, and the heat pump device is started to inject heat energy into the heat storage tank; Acquiring a plurality of illumination data based on a preset illumination sensor, calculating an illumination average value according to the plurality of illumination data, calculating an illumination adjustment value according to the i