Air conditioner regulation method and regulation system under peak shaving demand response

Abstract

The present application relates to the technical field of power management, more particularly, to an air conditioner regulation method and system under peak shaving demand response. The present application installs an air conditioner soft control terminal and a load monitoring terminal on the user side to realize intelligent and information-based centralized management of air conditioner units on the user side. A regulation platform is established on the master station side to generate a corresponding load control strategy according to the access and regulation time of the user under peak shaving demand response, and then to perform adaptive load control on the corresponding activated soft control terminal, thereby avoiding frequent information interaction between the user side and the master station side and reducing the information redundancy of the master station. The present application solves the problems of high load processing of the master station and information transmission lag between the master station and the user terminal when the existing main user, i.e. the air conditioner unit, is under peak shaving demand response.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of power management, and more particularly, to an air conditioner regulation method and system under peak shaving demand response. BACKGROUND

[0002] Demand response is short for power demand response. Specifically, when power supply is tight (or surplus) and there is a period of insufficient (or excess) power, the power grid enterprise, with the support of the energy authority and the local government, invites electricity customers with load adjustment capabilities to actively reduce (or increase) electricity load in a specific period agreed upon by both parties through economic incentives, effectively realizes peak shaving and valley filling, and alleviates the contradiction between power supply and demand. Then, the customer obtains certain compensation (subsidy) according to the actively reduced (or increased) electricity load.

[0003] A current district has air conditioner units as its main users. At present, the district only performs peak shaving demand response, but the main station needs to frequently detect the power (i.e., load) of the user side to verify whether the regulation target is achieved. For the main station, the district needs to collect a large amount of data, which causes information redundancy of the main station and high processing load. Moreover, the collected data is transmitted between the main station and the user side, but due to the long distance, signal transmission will be delayed. SUMMARY

[0004] Therefore, it is necessary to provide an air conditioner regulation method and system under peak shaving demand response to solve the problems of high processing load of the main station and information transmission delay between the main station and the user side in the existing district with air conditioner units as its main users during peak shaving demand response.

[0005] The present application adopts the following technical solutions:

[0006] In a first aspect, the present application discloses an air conditioner regulation method under peak shaving demand response, which is used in a district with air conditioner units as its user side.

[0007] The air conditioner regulation method under peak shaving demand response comprises the following steps:

[0008] A plurality of air conditioner regulation terminals are arranged at the user side, so that air conditioner units located in the same area share the same air conditioner regulation terminal; a plurality of load monitoring terminals are arranged in any area where an air conditioner regulation terminal belongs, so that air conditioner units on the same branch share the same load monitoring terminal;

[0009] A regulation platform is arranged at the main station side;

[0010] Before the start of peak shaving demand response, the regulation platform publishes a regulation announcement to the user side, and the user selects to confirm to accept or refuse the peak shaving demand response according to the actual situation;

[0011] After the peak shaving demand response starts, the regulation platform generates a load regulation activation area according to the distribution of users accepting the peak shaving demand response; wherein the air conditioner soft control terminal to which the user accepting the peak shaving demand response belongs is taken as an activated soft control terminal;

[0012] The regulation platform issues a data collection task to the activated soft control terminal, the activated soft control terminal acquires the pre-regulation time load of the subordinate load monitoring terminal, acquires the pre-regulation time state data of the subordinate air conditioning unit, and reports back to the regulation platform;

[0013] The regulation platform generates a load regulation strategy according to the data acquired by the activated soft control terminal, and issues it to the activated soft control terminal;

[0014] The activated soft control terminal regulates the subordinate air conditioning unit according to the load regulation strategy, and calculates the load regulation response completion degree according to the period t, and performs adaptive adjustment on the subordinate air conditioning unit;

[0015] After the peak shaving demand response ends, the activated soft control terminal reports the control result back to the regulation platform.

[0016] The air conditioner regulation method under the peak shaving demand response realizes the method or process according to the embodiments of the present disclosure.

[0017] In the second aspect, the present disclosure discloses an air conditioner regulation system under a peak shaving demand response, which uses the air conditioner regulation method under the peak shaving demand response of the first aspect.

[0018] The air conditioner regulation system under the peak shaving demand response comprises: a plurality of air conditioner soft control terminals, a plurality of load monitoring terminals, and a regulation platform.

[0019] The plurality of air conditioner soft control terminals are arranged at the user side. Wherein, the air conditioning units located in the same area share the same air conditioner soft control terminal.

[0020] The plurality of load monitoring terminals are also arranged at the user side; wherein, in any area belonging to the air conditioner soft control terminal, the air conditioning units on the same branch share the same load monitoring terminal.

[0021] The regulation platform is arranged at the main station side.

[0022] Wherein, the uplink side of the air conditioner soft control terminal performs data interaction with the regulation platform through wireless communication; the downlink side of the air conditioner soft control terminal is connected with the controller of the load monitoring terminal and the air conditioning unit through wired communication.

[0023] The air conditioner regulation system under the peak shaving demand response realizes the method or process according to the embodiments of the present disclosure.

[0024] Compared with the prior art, the present disclosure has the following beneficial effects:

[0025] The present application realizes intelligent and information centralized management of air conditioning units on the user side by installing air conditioning soft control terminals and load monitoring terminals on the user side; and establishes a control platform on the master station side, generates corresponding load control strategies according to the access control time of the user in the peak shaving demand response, and then performs adaptive load control on the corresponding activated soft control terminal, thereby avoiding frequent information interaction between the user side and the master station side and reducing the information redundancy of the master station. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 A flowchart of the air conditioning control method under the peak shaving demand response provided in Embodiment 1 of the present application;

[0027] Figure 2 A layout connection diagram of the first air conditioning control system provided in Embodiment 2 of the present application;

[0028] Figure 3 A layout connection diagram of the second air conditioning control system provided in Embodiment 2 of the present application. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0030] It should be noted that when a component is referred to as being “mounted on” another component, it can be directly on the other component or there can be a middle component. When a component is referred to as being “disposed on” another component, it can be directly disposed on the other component or there can be a middle component. When a component is referred to as being “fixed on” another component, it can be directly fixed on the other component or there can be a middle component.

[0031] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the present application belongs. The terminology used in the description of the present application herein only for the purpose of describing specific embodiments and is not intended to limit the present application. The term “or / and” used herein includes any and all combinations of one or more related listed items.

[0032] Embodiment 1

[0033] Please refer to Figure 1 , Figure 1The flow chart of the air conditioner regulation method under peak shaving demand response in the application. The detection method aims to regulate the load of the existing transformer area in the peak shaving demand response; wherein the users of the transformer area are air conditioner units.

[0034] As shown in Figure 1 The air conditioner regulation method under peak shaving demand response includes the following steps:

[0035] An air conditioner regulation system under peak shaving demand response is built in advance; specifically: a plurality of air conditioner soft control terminals are arranged at the user side, so that the air conditioner units located in the same area share the same air conditioner soft control terminal. Generally, the air conditioner units located in the same building can share the same air conditioner soft control terminal. A plurality of load monitoring terminals are also arranged at the user side, i.e. a plurality of load monitoring terminals are arranged in the area to which any air conditioner soft control terminal belongs, so that the air conditioner units on the same branch share the same load monitoring terminal. Generally, the air conditioner units located on the same floor can share the same load monitoring terminal. A regulation platform is arranged at the master station side.

[0036] The uplink side of the air conditioner soft control terminal interacts with the regulation platform through wireless communication. Wireless communication can use any of 4G, 5G, HPLC.

[0037] The downlink side of the air conditioner soft control terminal is connected with the load monitoring terminal and the controller of the air conditioner unit through wired communication. Among them, wired communication uses RS485, such as a protocol unit based on RS485. It should be noted that since the air conditioner units in the same area are configured to share the same air conditioner soft control terminal, a multi-split control gateway is generally used for connection configuration. The multi-split control gateway is also based on the RS485 protocol and has a multi-way communication network port, which realizes the information interaction between a single air conditioner soft control terminal and multiple air conditioner units, and can realize more intelligent centralized control.

[0038] Among them, the regulation platform is the control core of the whole regulation method, and the air conditioner soft control terminal is the information relay between the air conditioner unit and the regulation platform: the regulation platform is used to interface the regional load regulation demand and generate a load regulation strategy; the air conditioner soft control terminal collects the real-time working data of the air conditioner unit, responds to the load regulation strategy, and performs self-adaptive power control.

[0039] After the air conditioner regulation system under peak shaving demand response is built, the regulation can be started:

[0040] Before the peak shaving demand response starts, the regulation platform issues a regulation announcement to the user side, and the user selects to confirm to accept the peak shaving demand response or refuses the peak shaving demand response according to the actual situation.

[0041] This is because, the peak clipping demand response needs the cooperation of the main station side and the user side: on the one hand, the user side can not be able to carry out the peak clipping demand response every time; on the other hand, the main station side also needs to determine whether the peak clipping demand response can be carried out according to the user side acceptance.

[0042] If the user who accepts the peak clipping demand response meets the target requirement of this peak clipping demand response, the peak clipping demand response can be carried out. Otherwise, the regulation and control platform gives up this peak clipping demand response, or contacts the user side to adjust the number of users who accept this peak clipping demand response, so that this peak clipping demand response can be carried out normally.

[0043] After the peak clipping demand response starts, the regulation and control platform generates a load regulation and control activation area according to the distribution of users who accept the peak clipping demand response; wherein, the air conditioner soft control terminal to which the user who accepts the peak clipping demand response belongs is an activated soft control terminal.

[0044] This is because, the distribution of users who accept the peak clipping demand response is not fixed, and the regulation and control platform needs to divide the load according to the load regulation and control activation area.

[0045] The regulation and control platform issues a data collection task to the activated soft control terminal, and the activated soft control terminal obtains the pre-regulation and control time load of the subordinate load monitoring terminal and obtains the pre-regulation and control time state data of the subordinate air conditioning unit, and reports back to the regulation and control platform.

[0046] Specifically, the regulation and control platform issues a data collection task to the activated soft control terminal according to the address of the activated soft control terminal, and the activated soft control terminal collects the pre-regulation and control time state data of the subordinate air conditioning unit according to the data collection task, such as measuring the air conditioner set temperature, the air conditioner current temperature, etc.; on the other hand, the activated soft control terminal collects the pre-regulation and control time load data of the subordinate load monitoring terminal, i.e. the air conditioning load value.

[0047] It should be noted that generating a load regulation and control strategy not only needs the above-mentioned related data, but also needs to consider the indoor temperature and the outdoor temperature. Among them, the indoor temperature can directly use the temperature data returned by the air conditioning unit, or arrange an indoor temperature sensor indoors; the outdoor temperature can directly use the temperature data published by the meteorological department in real time, or arrange an outdoor temperature sensor outdoors.

[0048] And the above-mentioned data is summarized to the activated soft control terminal, and then reported back to the regulation and control platform.

[0049] The regulation and control platform generates a load regulation and control strategy according to the data obtained by the activated soft control terminal, and issues it to the activated soft control terminal.

[0050] The load control platform generates a load control strategy according to the load control distribution factor weighting algorithm. The algorithm is embedded in the load control platform and will not be described here. Of course, the load control platform also uses other methods, such as big data operation, manual calculation, etc. to determine the load control strategy.

[0051] The activated soft control terminal adjusts the subordinate air conditioning units according to the load control strategy and calculates the load control response completion degree in the period t to perform adaptive adjustment on the subordinate air conditioning units.

[0052] It should be noted that after the load control strategy is issued to the activated soft control terminal by the load control platform, the load control platform can remain idle, and subsequent specific load control is executed by the activated soft control terminal:

[0053] First, the activated soft control terminal translates the load control strategy, generates a load control task, and issues it to the protocol unit. The protocol unit then translates the load control task into air conditioning control instructions and issues them to the controller of the air conditioning unit, so that the controller adjusts the setting parameters of the air conditioner according to the control instructions.

[0054] It should be noted that if a multi-split control gateway is used, the air conditioning control instructions issued by the protocol unit will be processed by the multi-split control gateway and sent to the air conditioning unit to be controlled.

[0055] After that, the activated soft control terminal periodically calculates the load control response completion degree to perform adaptive adjustment on the subordinate air conditioning units:

[0056] The calculation method of the load control response completion degree is as follows:

[0057] The load control response completion degree is obtained by dividing the current period load of the subordinate air conditioning unit of the activated soft control terminal by the target load.

[0058] The method of adaptive adjustment on the subordinate air conditioning units includes:

[0059] If the load control response completion degree of the current period is less than or equal to the preset threshold, the air conditioning unit control parameters of the current period are kept unchanged in the next period;

[0060] If the load control response completion degree of the current period is greater than the preset threshold, the air conditioning unit control parameters are adjusted in the next period. Specifically, if the load control response completion degree of the current period is greater than the preset threshold and the load of the subordinate air conditioning unit of the activated soft control terminal in the current period is greater than the target load, the air conditioning unit control parameters are adjusted to reduce the air conditioning unit operating load. More specifically, if the air conditioning unit is fixed frequency, the air conditioning set temperature is lowered; if the air conditioning unit is variable frequency, the air conditioning operating frequency or the air conditioning set temperature is lowered.

[0061] In this embodiment 1, the preset threshold is 105%. Of course, the preset threshold can be adjusted between 100% and 110%. Generally, t is 1 min. Of course, the value of t can be adjusted, but it should not be too short or too long.

[0062] In the above process, the activated soft control terminal undertakes the load control and information interaction of the subordinate air conditioning unit, so that the air conditioning unit can be adjusted without the monitoring platform, avoiding frequent information interaction between the user side and the main station side, and reducing the information redundancy of the main station.

[0063] After the peak shaving demand response ends, the activated soft control terminal reports the control result back to the control platform.

[0064] At this time, the activated soft control terminal reports the control result to the control platform, and the control platform records and archives it, which can be used as a reference for the next peak shaving demand response. In this way, the load of the control platform is significantly reduced compared with the existing method, avoiding the interference of other tasks.

[0065] Embodiment 2

[0066] This embodiment 2 discloses two specific air conditioning control systems under peak shaving demand response:

[0067] ①Referring to Figure 2 , the user side is an air conditioner composed of an air-cooled screw water chiller unit.

[0068] A load monitoring terminal is installed on the total road of the water chiller unit to monitor the load data of the water chiller unit.

[0069] An indoor temperature sensor is installed at the outlet position of the indoor air conditioner to monitor the actual indoor temperature, and an outdoor temperature sensor is installed outdoors to monitor the outdoor environment temperature.

[0070] A protocol unit is installed near the water chiller unit controller, which connects the air conditioner controller, indoor temperature sensor and outdoor temperature sensor in RS485 mode, to copy air conditioner control data, temperature data and issue air conditioning control instructions to the air conditioning unit, realize air conditioning power variation and achieve load control response results.

[0071] An air conditioning soft control terminal is installed near the water chiller unit, which is connected to the control platform through 4G or HPLC mode to upload air conditioning load data, air conditioning control data and temperature data, and receive the load control strategy issued by the control platform; it is connected to the protocol unit and the load monitoring terminal through RS485 mode to copy air conditioning load data, control data and temperature data, and translate and issue the load control strategy to the protocol unit.

[0072] ②Referring to Figure 3The user side is a multi-connected air conditioner unit located in the same building.

[0073] A load monitoring terminal is installed on each floor of the building to monitor the load data of the air conditioner unit on the floor.

[0074] An outdoor temperature sensor is installed outside the building to monitor the outdoor environment temperature.

[0075] A multi-connected control gateway is installed in the building to connect all the terminal units in the building, realize the copying of multi-connected terminal control data and indoor actual temperature data, and issue control instructions.

[0076] A protocol unit is installed near the multi-connected control gateway, which is connected to the multi-connected control gateway and the outdoor temperature sensor in RS485 mode, to copy air conditioning control data and temperature data, issue air conditioning control instructions to the multi-connected control gateway, and send them to the terminal unit by the multi-connected control gateway, so as to realize air conditioning power variation and achieve load regulation response results.

[0077] An air conditioning soft control terminal is installed at a suitable position in the building (for example, a central control room), which is connected to the regulation platform by 4G or HPLC mode to upload air conditioning load data, control data, and temperature data, and receive the load regulation strategy issued by the regulation platform; it is connected to the protocol unit and the load monitoring terminal in S485 mode to copy air conditioning load data, control data, and temperature data, and translate and issue the load regulation strategy to the protocol unit.

[0078] The technical features of the above-described embodiments can be combined in any manner. To make the description concise, all possible combinations of the technical features in the above-described embodiments are not described, but as long as the combination of the technical features does not exist, it should be considered as the scope of the present disclosure.

[0079] The above-described embodiments only express several embodiments of the present application, which are described in detail and specifically, but should not be understood as a limitation on the scope of the patent. It should be noted that for ordinary skilled in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which are within the scope of the present application. Therefore, the scope of the present patent should be subject to the appended claims.

Claims

1. A method for air conditioning control under peak demand response, characterized in that, It is used in the user-side area for air conditioning units; The air conditioning control method under peak demand response includes: Several air conditioning flexible control terminals are deployed on the user side so that air conditioning units located in the same area can share the same air conditioning flexible control terminal; several load monitoring terminals are deployed in the area to which any air conditioning flexible control terminal belongs so that air conditioning units on the same branch can share the same load monitoring terminal. A control platform will be deployed on the main station side; Before the peak shaving demand response begins, the control platform issues a control announcement to the user side, and the user can choose to accept or reject the peak shaving demand response based on the actual situation. After the peak shaving demand response begins, the control platform generates a load control activation area based on the distribution of users receiving the peak shaving demand response; wherein, the air conditioning flexible control terminal to which the user receiving the peak shaving demand response belongs is designated as the activated flexible control terminal. The control platform sends a data recall task to the activated flexible control terminal. The activated flexible control terminal obtains the load of the subordinate load monitoring terminal before control and the status data of the subordinate air conditioning unit before control, and reports it back to the control platform. The control platform generates a load control strategy based on the data obtained by the activated flexible control terminal and sends it to the activated flexible control terminal. The activated flexible control terminal regulates the subordinate air conditioning units according to the load control strategy, and calculates the load control response completion rate according to the period t to carry out adaptive adjustment of the subordinate air conditioning units. After the peak-shaving demand response is completed, the activated flexible control terminal will report the control results back to the control platform.

2. The air conditioning control method under peak demand response according to claim 1, characterized in that, The control platform allocates load to users receiving peak shaving demand responses based on a load control allocation factor weighting algorithm and generates load control strategies.

3. The air conditioning control method under peak demand response according to claim 1, characterized in that, The methods for activating the flexible control terminal to adaptively adjust subordinate air conditioning units include: If the load control response completion rate of the current cycle is lower than or equal to the preset threshold, the air conditioning unit control parameters of the current cycle will remain unchanged in the next cycle. If the load control response completion rate of the current cycle is greater than the preset threshold, the control parameters of the air conditioning unit will continue to be adjusted in the next cycle.

4. The air conditioning control method under peak demand response according to claim 3, characterized in that, The calculation method for load control response completion is as follows: Obtain the load of the air conditioning units under the activated flexible control terminal for the current cycle, and divide it by the target load to obtain the load control response completion rate.

5. The air conditioning control method under peak demand response according to claim 4, characterized in that, If the load regulation response completion rate of the current cycle is greater than the preset threshold, and the load of the air conditioning unit under the activated flexible control terminal in the current cycle is greater than the target load, then the control parameters of the air conditioning unit will be adjusted to reduce the operating load of the air conditioning unit.

6. The air conditioning control method under peak demand response as described in claim 5, characterized in that, If the air conditioning unit is a fixed-frequency unit, then lower the air conditioning set temperature; If the air conditioning unit is an inverter type, reduce the air conditioner's operating power or lower the set temperature.

7. The air conditioning control method under peak demand response according to claim 6, characterized in that, The preset threshold is 105%.

8. The air conditioning control method under peak-shaving demand response according to any one of claims 1-7, characterized in that, t = 1 min.

9. An air conditioning control system for peak demand response, characterized in that, It uses the air conditioning control method under peak demand response as described in any one of claims 1-8; The air conditioning control system under peak demand response includes: Several air conditioning flexible control terminals are installed on the user side; among them, air conditioning units located in the same area share the same air conditioning flexible control terminal. Several load monitoring terminals are also installed on the user side; among them, within the area of ​​any air conditioning flexible control terminal, air conditioning units on the same branch share the same load monitoring terminal. as well as The control platform is located on the main station side; The uplink side of the air conditioning flexible control terminal interacts with the control platform via wireless communication; the downlink side of the air conditioning flexible control terminal is connected to the load monitoring terminal and the controller of the air conditioning unit via wired communication.

10. The air conditioning control system under peak demand response according to claim 9, characterized in that, Wireless communication uses any one of 4G, 5G, or HPLC; wired communication uses RS485.

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