Power load management joint control method, device and system

Abstract

The invention provides a power load management joint control method, device and system. The method comprises the following steps: acquiring control parameters of a rectifier unit load and an on-load voltage regulation variable operation gear; establishing a load control strategy according to the two control parameters, and generating a corresponding load control instruction set; and when the user side and the master station side enter a load joint control state, executing corresponding actions according to the load control instruction set, and realizing electric quantity load joint control of the user side and the master station side. Compared with the prior art, the load control instruction set is set in advance according to the control parameters, so that the load adjustment time can be effectively saved, and the load adjustment efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of power load control, and in particular to a power load management joint control method, device and system. Background Art

[0002] Traditional power load control mainly uses administrative means of orderly power consumption and technical means of remote control of user power supply (power outage) to monitor and control the user's maximum load or power consumption, which is the most direct hard load control method. Although the goal of power supply has been achieved, there are also many disadvantages. First, direct control of user production leads to reduced user production capacity and damage to economic interests. In particular, high-energy-consuming industries in some provinces are at the upstream of the industrial chain and mainly supply raw materials, which to a certain extent affect the fluctuations of the entire industrial chain and are very likely to have a greater impact on the industry economy. Second, the form of high-energy-consuming industrial loads participating in the interaction between power grid supply and demand is single and extensive, and the active tracking and adaptive power grid adjustment matching capabilities of loads are poor. Third, this kind of control mode is likely to cause greater risks to the user's own personal safety, equipment safety and product quality, and users are generally more resistant. Fourth, this kind of control mode does not conform to the corporate positioning of power grid companies as energy industry value chain integrators and energy ecosystem service providers.

[0003] Most of the existing technologies are for remote control of user power supply, and some use intelligent fusion terminals in the substation as the load-side control platform, which read the adjustable load status by communication and output control commands to achieve load regulation. The existing technologies have the following shortcomings: remote control of user power supply is single and extensive, and the load active tracking and adaptive grid regulation matching capabilities are poor. Using intelligent fusion terminals in the substation as the load-side control platform, the adjustable load status is read and control commands are output by communication. The control delay is in seconds and cannot be tracked and adjusted in real time. For objects that require continuous control, such as rectifier unit gear control, the platform load control center adopts a step-by-step control method, that is, a cyclic process of single control, readback status, and continued control. The fusion terminal is only used as a communication link device. It is limited by the communication question-and-answer interaction process. It often takes tens of minutes to implement a continuous adjustment process.

[0004] Therefore, it is an urgent problem to be solved by those skilled in the art to provide a method, device and system for joint control of power load management to solve the above problems. Summary of the invention

[0005] The purpose of the present invention is to provide a method for joint control of power load management, which has clear logic, is safe, effective, reliable and easy to operate, can save load adjustment time, improve load adjustment efficiency, maximize adjustable resources for power load management, and minimize power supply reduction.

[0006] Based on the above objectives, the technical solution provided by the present invention is as follows: A power load management joint control method comprises the following steps: Collect the control parameters of the rectifier unit load, on-load voltage regulation and operating gear; Establishing a load control strategy according to the control parameters and generating a load control instruction set; When the user side and the master station side are jointly controlled, corresponding actions are performed according to the load control instruction set.

[0007] Preferably, before the user side and the master station side enter the load joint control state, the following steps are also included: The control platform enters the initial state and completes the control parameter initialization and self-test operations; Query the status of the user side and the master side; When the user side and the master station side are in a standby state, the user side and the master station side are switched to a load joint control state according to the load control instruction set.

[0008] Preferably, establishing a load control strategy according to the control parameters and generating a load control instruction set comprises the following steps: According to the on-load voltage regulation and operating gear change, determine and establish the target gear adjustment strategy; According to the load of the rectifier unit, determine and establish a target power regulation strategy; Generate a target gear adjustment instruction according to the target gear adjustment strategy; A target power adjustment instruction is generated according to the target power adjustment strategy, and is integrated with the target gear adjustment instruction, the preset power-off load instruction and the power-saving instruction into the load control instruction set.

[0009] Preferably, when the loads on the user side and the master station side are jointly controlled, corresponding actions are performed according to the load control instruction set, including the following steps: When the user side and the master station side enter the load joint control state, the gear control is performed according to the target gear adjustment instruction, and the target gear is output; and / or, After executing power control according to the target power adjustment instruction to obtain the target power, executing gear control according to the target gear adjustment instruction to output the target gear.

[0010] Preferably, after outputting the target gear position, the method further includes the following steps: Determine whether the adjustment is completed; If yes, generating a standby flag for the user side and the master station side; If not, monitor the bus voltage status and restart the control platform.

[0011] Preferably, after generating the standby flags of the user side and the master station side, the following steps are also included: According to the standby flags of the user side and the master station side, the user side and the master station side are switched to a standby state.

[0012] Preferably, when the user side and the master station side are jointly controlled, the corresponding actions are executed according to the load control instruction set, and the following steps are also included: When the master station receives a preset load shedding instruction, an alarm is issued within the preset alarm delay time. When the delay time decreases to zero, the control outlet cuts off the corresponding load line and keeps the tripped outlet within the power-limited time.

[0013] Preferably, when the user side and the master station side are jointly controlled, the corresponding actions are executed according to the load control instruction set, and the following steps are also included: When the master station receives the preset power-saving instruction, it determines whether the corresponding power-saving flag is set; If yes, reset the power protection flag and enter the master station side adjustment state; Determine whether the adjustment time is less than the preset time; If so, executing gear control according to the received target gear adjustment instruction; When the master station side receives a reset instruction corresponding to the preset power conservation instruction, the master station side exits the adjustment state, sets the power conservation flag, and clears the gear control result.

[0014] A power load management joint control device, comprising: Control parameter acquisition module, used to collect the control parameters of the load of the rectifier unit and the operating gear of the on-load voltage regulator; A load instruction generation module, used to establish a load control strategy according to the control parameters and generate a load control instruction set; The execution module is used to execute corresponding actions according to the load control instruction set when the user side and the master station side are load-controlled jointly.

[0015] A power load management joint control system, comprising: Control platform, The electric power load management joint control device as described above communicates with the control platform.

[0016] The electric power load management joint control method provided by the present invention is to collect the control parameters of the rectifier unit load and the on-load voltage regulation operating gear; establish a load control strategy based on the above two control parameters, and generate a corresponding load control instruction set; when the user side and the master station side enter the load joint control state, execute corresponding actions according to the load control instruction set to realize the electric power load joint control on the user side and the master station side.

[0017] Compared with the prior art, since the load control instruction set is set in advance according to the control parameters, the load regulation time can be effectively saved and the load regulation efficiency can be improved.

[0018] The present invention also provides a power load management joint control device and system, which solves the same technical problem as the method, belongs to the same technical concept, and should have the same beneficial effects, so they will not be described in detail here. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 A flow chart of a power load management joint control method provided by an embodiment of the present invention; Figure 2 A flow chart before the user side and the master station side enter the load joint control state provided by an embodiment of the present invention; Figure 3 A flowchart of step S2 provided in an embodiment of the present invention; Figure 4 A schematic diagram of the structure of a power load management joint control device provided in an embodiment of the present invention. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0022] The embodiments of the present invention are written in a progressive manner.

[0023] The embodiment of the present invention provides a method, device and system for joint control of power load management, which mainly solves the technical problems in the prior art that adjustable resources of power load management are not utilized in an organized manner, load adjustment time is long, and load adjustment efficiency is low.

[0024] like Figure 1 As shown, a power load management joint control method includes the following steps: S1. Collect the control parameters of the load of the rectifier unit and the operating gear of the on-load voltage regulator; S2. Establish a load control strategy based on the control parameters and generate a load control instruction set; S3. When the user side and the master station side are jointly controlled, corresponding actions are performed according to the load control instruction set.

[0025] In step S1, the load of the rectifier unit and the operating position of the on-load voltage regulator are collected in real time by a collection device installed on the user side, and uploaded through an encrypted channel; In step S2, the load control strategy is generated based on the above control parameters, and a load control instruction set is generated after manual confirmation; In step S3, the user side and the master station side are in a standby state and a load joint control state. When in the load joint control state, corresponding actions are executed through instructions in the load control instruction set to realize load joint control.

[0026] like Figure 2 As shown, preferably, before the user side and the master station side enter the load joint control state, the following steps are also included: A1. The control platform enters the initial state and completes the control parameter initialization and self-check operation; A2. Query the status of the user side and the master side; A3. When the user side and the master station side are in the standby state, the user side and the master station side are switched to the load joint control state according to the load control instruction set.

[0027] In step A1, before the user side and the master station side enter the load joint control state, the control platform enters the initial state, completes the control parameter initialization and self-check operation, and also confirms the initial vacant state; In step A2, after the initialization is completed, the status of the user side and the master station side is queried, that is, the standby flags of the user side and the master station side are queried. If the standard exists, the user side and the master station side are in the standby state, and step A3 is entered; In step A3, when the user side and the master station side are in the standby state, the user side and the master station side are switched to the load joint control state according to the load control instruction set; In this embodiment, when the user side is in standby mode, if a control command in the load control instruction set is detected to be issued, the control state is switched to the user side. When the master station side is in standby mode, if a control command in the load control instruction set is detected to be issued, the control state is switched to the master station.

[0028] like Figure 3 As shown, preferably, step S2 includes the following steps: B1. According to the on-load voltage regulation and operating gear change, determine and establish the target gear adjustment strategy; B2. According to the load of the rectifier unit, determine and establish the target power regulation strategy; B3. Generate a target gear adjustment instruction according to the target gear adjustment strategy; B4. Generate a target power adjustment instruction according to the target power adjustment strategy, and integrate it with the target gear adjustment instruction, the preset power-off load instruction and the power-saving instruction into a load control instruction set.

[0029] In steps B1 to B4, the gear adjustment plan is generated based on the real-time operating gear of the target load enterprise (i.e., the operating gear of the on-load voltage regulator) to form the final target gear. The final target power that the target load enterprise needs to achieve is generated based on the power gap of the system (calculated by the load of the rectifier unit); the above two strategies generate target gear adjustment instructions and target power adjustment instructions corresponding to the preset load shedding instructions and power protection instructions, and integrate them into a load control instruction set; In this embodiment, the instruction set includes power-limiting load shedding instructions and power-saving instructions (power-saving refers to the prohibition control switch set by the terminal. When the terminal is in power-saving mode, the terminal does not execute the remote control instructions issued by the master station), among which power-limiting load shedding instructions and power-saving instructions are both existing technologies in smart grids.

[0030] Preferably, step S3 comprises the following steps: When the user side and the master station side enter the load joint control state, the gear control is performed according to the target gear adjustment instruction and the target gear is output; and / or, The power control is performed according to the target power adjustment instruction to obtain the target power, and the gear control is performed according to the target gear adjustment instruction to output the target gear.

[0031] During actual application, when the user side and the main station side enter the load joint control state, it is determined whether the target gear adjustment or power adjustment is required. When the target gear adjustment is required, the gear adjustment process is directly started, the target gear adjustment instruction is called from the instruction set, the gear control is performed according to the adjustment instruction, and the target gear is output; when power adjustment is required, power adjustment is performed first and then gear adjustment, the power adjustment instruction is called from the instruction set, power control is performed according to the adjustment instruction, and after the power control is completed, the target power is obtained, and the gear adjustment process is started at this time.

[0032] Preferably, after outputting the target gear position, the method further includes the following steps: Determine whether the adjustment is completed; If yes, a standby flag is generated on the user side and the master side; If not, monitor the bus voltage status and restart the control platform.

[0033] During actual use, after completing the gear adjustment and / or power adjustment according to the above process, determine whether the adjustment process is completed. If it is completed, generate standby signs on the user side and the main station side; if it is not completed, a fault may occur. At this time, monitor the bus voltage status and restart the control platform to make the control platform jump to step A1.

[0034] Preferably, after generating the standby flags of the user side and the master station side, the following steps are also included: According to the standby flags of the user side and the master station side, the user side and the master station side are switched to the standby state.

[0035] In actual operation, when the standby flag is generated, the user side and the master station side are switched to the standby state accordingly, waiting for the next cycle of load joint control.

[0036] Preferably, when the user side and the master station side are load-controlled jointly, the corresponding actions are executed according to the load control instruction set, and the following steps are also included: When the master station receives a preset load shedding instruction, an alarm is issued within the preset alarm delay time. When the delay time decreases to zero, the control outlet cuts off the corresponding load line and keeps the tripped outlet within the power-limited time.

[0037] During actual operation, when the master station receives a load shedding command, an alarm is issued within the preset alarm delay time. When the delay time decreases to zero, the control outlet cuts off the corresponding load line and maintains the tripped outlet during the power-limited time, and users are not allowed to close the circuit breaker by themselves.

[0038] Preferably, when the user side and the master station side are load-controlled jointly, the corresponding actions are executed according to the load control instruction set, and the following steps are also included: When the master station receives the preset power-saving instruction, it determines whether the corresponding power-saving flag is set; If yes, reset the power protection indicator and enter the master station side adjustment state; Determine whether the adjustment time is less than the preset time; If so, executing gear control according to the received target gear adjustment command; When the master station side receives a reset instruction corresponding to the preset power-saving instruction, the master station side exits the adjustment state, sets the power-saving flag, and clears the gear control result.

[0039] During actual use, when the master station side receives a preset power-saving instruction, it determines whether the corresponding power-saving flag is set. If so, it resets the power-saving flag. After entering the adjustment state of the master station side, it determines whether the adjustment time is less than the preset time (which can be set to 2 hours in this embodiment), and responds to the adjustment target instruction of the master station within the next 2 hours until the time is up or the master station power-saving reset and clear instruction is received. When the target gear adjustment instruction is received, the gear control is performed according to the above steps according to the target gear adjustment instruction; when the master station side receives a reset and clear instruction corresponding to the power-saving instruction, it exits the adjustment state, sets the power-saving flag, and clears the previous gear control result.

[0040] like Figure 4 As shown, a power load management joint control device comprises: Control parameter acquisition module, used to collect the control parameters of the load of the rectifier unit and the operating gear of the on-load voltage regulator; A load instruction generation module is used to establish a load control strategy according to control parameters and generate a load control instruction set; The execution module is used to perform corresponding actions according to the load control instruction set when the load on the user side and the master station side are jointly controlled.

[0041] In actual application, the present invention also discloses an electric load management joint control device, which is provided with a control parameter acquisition module, a load instruction generation module and an execution module, and the load instruction generation module is connected to the control parameter acquisition module and the execution module respectively.

[0042] A power load management joint control system, comprising: Control platform, The electric power load management joint control device as mentioned above communicates with the control platform.

[0043] In actual application, a power load management joint control system is also disclosed. The system includes a power load management joint control device and a control platform. The control platform and the power load management joint control device communicate with each other.

[0044] In the embodiments provided in the present application, it should be understood that the disclosed methods and systems can be implemented in other ways. The system embodiments described above are merely schematic. For example, the division of modules is only a logical function division. There may be other division methods in actual implementation, such as: multiple modules or components can be combined, or can be integrated into another system, or some features can be ignored, or not executed. In addition, the coupling, direct coupling, or communication connection between the components shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or modules, which can be electrical, mechanical or other forms.

[0045] In addition, all functional modules in the embodiments of the present invention may be integrated into one processor, or each module may be a separate device, or two or more modules may be integrated into one device; each functional module in the embodiments of the present invention may be implemented in the form of hardware or in the form of hardware plus software functional units.

[0046] A person of ordinary skill in the art can understand that all or part of the steps of implementing the above method embodiment can be completed by program instructions and related hardware. The aforementioned program instructions can be stored in a computer-readable storage medium. When the program instructions are executed, the steps of the above method embodiment are executed; and the aforementioned storage medium includes: a mobile storage device, a read-only memory (ROM), a magnetic disk or an optical disk, and other media that can store program codes.

[0047] It should be understood that the use of "system", "device", "unit" and / or "module" in this application is only a method for distinguishing different components, elements, parts, parts or assemblies at different levels. However, if other words can achieve the same purpose, the word can be replaced by other expressions.

[0048] As shown in this application and claims, unless the context clearly indicates an exception, the words "a", "an", "a kind" and / or "the" do not refer to the singular, but also include the plural. Generally speaking, the terms "include" and "comprise" only indicate the inclusion of clearly identified steps and elements, and these steps and elements do not constitute an exclusive list. The method or device may also include other steps or elements. The elements defined by the sentence "includes a..." do not exclude the existence of other identical elements in the process, method, commodity or device that includes the elements.

[0049] In the description of the embodiments of the present application, unless otherwise specified, " / " means or, for example, A / B can mean A or B; "and / or" in this article is only a description of the association relationship of associated objects, indicating that there can be three relationships, for example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone. In addition, in the description of the embodiments of the present application, "multiple" means two or more than two.

[0050] If a flow chart is used in the present application, the flow chart is used to illustrate the operations performed by the system according to the embodiment of the present application. It should be understood that the preceding or following operations are not necessarily performed accurately in order. On the contrary, each step can be processed in reverse order or simultaneously. At the same time, other operations can also be added to these processes, or a certain step or several steps of operations can be removed from these processes.

[0051] The above is a detailed introduction to a method, device and system for joint control of power load management provided by the present invention. The above description of the disclosed embodiments enables professionals and technicians in the field to implement or use the present invention. Various modifications to these embodiments will be obvious to professionals and technicians in the field, and the general principles defined in this article can be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown in this article, but will conform to the widest scope consistent with the principles and novel features disclosed in this article.

Claims

1. A power load management joint control method, characterized in that: The steps include: Collect the control parameters of the rectifier unit load, on-load voltage regulation and operating gear; Establishing a load control strategy according to the control parameters and generating a load control instruction set; When the user side and the master station side are jointly controlled, corresponding actions are performed according to the load control instruction set.

2. The power load management joint control method according to claim 1, characterized in that: Before the user side and the master station side enter the load joint control state, the following steps are also included: The control platform enters the initial state and completes the control parameter initialization and self-test operations; Query the status of the user side and the master side; When the user side and the master station side are in a standby state, the user side and the master station side are switched to a load joint control state according to the load control instruction set.

3. The power load management joint control method according to claim 2, characterized in that: The step of establishing a load control strategy according to the control parameters and generating a load control instruction set comprises the following steps: According to the on-load voltage regulation and operating gear change, determine and establish the target gear adjustment strategy; According to the load of the rectifier unit, determine and establish a target power regulation strategy; Generate a target gear adjustment instruction according to the target gear adjustment strategy; A target power adjustment instruction is generated according to the target power adjustment strategy, and is integrated with the target gear adjustment instruction, the preset power-off load instruction and the power-saving instruction into the load control instruction set.

4. The power load management joint control method according to claim 3, characterized in that: When the loads on the user side and the master station side are jointly controlled, corresponding actions are performed according to the load control instruction set, including the following steps: When the user side and the master station side enter the load joint control state, the gear control is performed according to the target gear adjustment instruction, and the target gear is output; and / or, After executing power control according to the target power adjustment instruction to obtain the target power, executing gear control according to the target gear adjustment instruction to output the target gear.

5. The power load management joint control method according to claim 4, characterized in that: After outputting the target gear position, the following steps are also included: Determine whether the adjustment is completed; If yes, generating a standby flag for the user side and the master station side; If not, monitor the bus voltage status and restart the control platform.

6. The power load management joint control method according to claim 5, characterized in that: After generating the standby flags of the user side and the master station side, the following steps are also included: According to the standby flags of the user side and the master station side, the user side and the master station side are switched to a standby state.

7. The power load management joint control method according to claim 4, characterized in that: When the loads on the user side and the master station side are jointly controlled, corresponding actions are performed according to the load control instruction set, and the following steps are also included: When the master station receives a preset load shedding instruction, an alarm is issued within the preset alarm delay time. When the delay time decreases to zero, the control outlet cuts off the corresponding load line and keeps the tripped outlet within the power-limited time.

8. The power load management joint control method according to claim 4, characterized in that: When the loads on the user side and the master station side are jointly controlled, corresponding actions are performed according to the load control instruction set, and the following steps are also included: When the master station receives the preset power-saving instruction, it determines whether the corresponding power-saving flag is set; If yes, reset the power protection flag and enter the master station side adjustment state; Determine whether the adjustment time is less than the preset time; If so, executing gear control according to the received target gear adjustment instruction; When the master station side receives a reset instruction corresponding to the preset power conservation instruction, the master station side exits the adjustment state, sets the power conservation flag, and clears the gear control result.

9. A power load management joint control device, characterized in that: include: Control parameter acquisition module, used to collect the control parameters of the rectifier unit load, on-load voltage regulation and operating gear; A load instruction generation module, used to establish a load control strategy according to the control parameters and generate a load control instruction set; The execution module is used to execute corresponding actions according to the load control instruction set when the user side and the master station side are jointly controlled.

10. A power load management joint control system, characterized in that: include: Control platform, The electric power load management joint control device as described in claim 9 communicates with the control platform.

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