Method, system and device for high energy consumption industrial park to participate in power auxiliary service

Abstract

The present invention relates to the field of power systems and automation technology thereof, and specifically to a system for a high-energy-consuming industrial park to participate in power auxiliary services, wherein each of the load monitoring / control terminals is connected to an adjustable device, monitors the power information of the adjustable device in real time and transmits it to the park energy coordination and control system; the park energy coordination and control system is also connected to a grid-side system for communication, and receives an auxiliary service adjustment signal from the grid-side system; the park energy coordination and control system generates a target control instruction based on the auxiliary service adjustment signal and power information and transmits it to the load monitoring / control terminal, and the load monitoring / control terminal adjusts the adjustable device based on the target control instruction; the present invention also relates to a method for high-energy-consuming loads to participate in power auxiliary services and a computer device for executing the method; the system, method and device of the present invention improve the potential of high-energy-consuming loads to participate in power auxiliary services, and can flexibly and reliably access various loads in the park.

Description

Technical Field

[0001] The present invention relates to the field of power systems and automation technologies thereof, and in particular to a method for a high-energy-consuming industrial park to participate in power auxiliary services and a system for a high-energy-consuming industrial park to participate in power auxiliary services using the method. Background Art

[0002] In the 1990s, Western power market theory began to be introduced into China, and Chinese scholars began to conduct systematic research on power market theory, including ancillary service transactions. In early 2002, the State Council issued the "Electricity System Reform Plan" (Guofa

[2002] No. 5), which gave rise to the institutionalization of ancillary service management and transactions. In accordance with the "Regulations on the Management of Grid-connected Operation of Power Plants" and the "Interim Measures for the Management of Ancillary Services of Grid-connected Power Plants" of the State Electricity Regulatory Commission, each region has formulated the "Implementation Rules for the Management of Grid-connected Operation of Power Plants" and the "Implementation Rules for the Management of Ancillary Services of Grid-connected Power Plants" (referred to as the "Two Rules"). The "Several Opinions on Further Deepening the Reform of the Power System" (Zhongfa

[2015] No. 9) issued in March 2015 clearly proposed "establishing a new mechanism for sharing ancillary services; adapting to the new requirements of ancillary services such as peak load regulation, frequency regulation, voltage regulation and user interruptible load, and improving the assessment mechanism and compensation mechanism for ancillary services of grid-connected power generation enterprises; establishing a user-participated ancillary service sharing mechanism based on the reliability of the power grid and the service quality, and in accordance with the principle of who benefits, who bears."

[0003] At present, the scope of the pilot program for power auxiliary services is constantly expanding, and a fair, transparent, and orderly market-based auxiliary service sharing and burden-sharing mechanism is taking shape. Energy storage equipment, demand-side resources, and third parties are encouraged to participate in the provision of power auxiliary services, which will benefit the consumption of new energy, power market transactions, and the development of emerging industries. Among them, high-energy-consuming industries such as electrolytic aluminum, cement, and steel are the main consumers of electricity in my country's industrial sector, and have the potential to participate in the power auxiliary service market and provide a large number of flexible response resources. However, the existing high-energy-consuming loads mainly participate in single-function auxiliary services such as frequency regulation and peak regulation. They do not consider the design of multi-functional auxiliary services, nor do they coordinate the participation in auxiliary services from the perspective of the entire industrial park, and cannot better adapt to the access requirements of market members participating in the power auxiliary service market. Summary of the invention

[0004] The purpose of the present invention is to overcome the defects of the prior art and provide a system and method for high-energy-consuming industrial parks to participate in power auxiliary services, thereby improving the potential of high-energy-consuming loads to participate in power auxiliary services and enabling flexible and reliable access to various loads in the park; and to provide a computer device to execute a method for high-energy-consuming industrial parks to participate in power auxiliary services, thereby improving the potential of high-energy-consuming loads to participate in power auxiliary services and enabling flexible and reliable access to various loads in the park.

[0005] To achieve the above object, the present invention adopts the following technical solutions:

[0006] A system for high-energy-consuming industrial parks to participate in power auxiliary services, comprising: a park energy coordination and control system and at least one load monitoring / control terminal communicatively connected to the park energy coordination and control system; each of the load monitoring / control terminals is connected to an adjustable device, monitors the power information of the adjustable device in real time and transmits it to the park energy coordination and control system; the park energy coordination and control system is also communicatively connected to a grid-side system to receive an auxiliary service adjustment signal issued by the grid-side system; the park energy coordination and control system generates a target control instruction based on the auxiliary service adjustment signal and power information and transmits it to the load monitoring / control terminal, and the load monitoring / control terminal adjusts the adjustable device based on the target control instruction.

[0007] Preferably, the power information includes one or more of a maximum power value, a minimum power value, a current power value, an adjustable power value, an adjustable power direction, and an adjustable power speed; the auxiliary service adjustment signal includes one or more of a planned total adjustment power value, a planned power adjustment direction, a planned total adjustment power speed, and a planned total adjustment time limit; the target control instruction includes at least one set of target adjustment parameters, each adjustable device corresponds to a set of target adjustment parameters, and each set of target adjustment parameters includes one or more of a target adjustment power value, a target power adjustment direction, a target adjustment power speed, and a target adjustment time limit.

[0008] Preferably, the park energy coordination control system includes a grid-side monitoring / control module, a park-side monitoring / control module and a coordination control module, and the grid-side monitoring / control module is connected to the park-side monitoring / control module through the coordination control module;

[0009] The grid-side monitoring / control module includes a load integrator interface module, a grid safety and stability control system interface module, a grid dispatching automation system interface module and an electricity market trading system interface module; the park-side monitoring / control module includes a flexible load monitoring sub-module, a distributed power supply monitoring sub-module, a distributed energy storage monitoring sub-module and a microgrid monitoring module; the coordination control module receives and processes signals from the grid-side monitoring / control module and transmits them to the park-side monitoring / control module, and the coordination control module also receives and processes signals from the park-side monitoring / control module and transmits them to the grid-side monitoring / control module.

[0010] Preferably, the load monitoring / control terminal includes one or more of a central digital signal and control algorithm processing board, an electrical quantity signal acquisition board, a non-electrical quantity signal acquisition board, a remote control / telesignaling / alarm information I / O board, a local communication interface board and a remote communication interface board, as well as a communication interface motherboard and a power supply board respectively connected to the above circuit boards.

[0011] Preferably, the electrical quantity signal acquisition board acquires voltage signals and current signals of the adjustable equipment, performs power calculation and electricity calculation, and transmits the calculation results to the central digital signal and control algorithm processing board; the non-electrical quantity signal acquisition board acquires environmental parameters of the environment in which the equipment to be regulated is located and transmits them to the central digital signal and control algorithm processing board; the central digital signal and control algorithm processing board processes the data transmitted by the electrical quantity signal acquisition board and the non-electrical quantity signal acquisition board, and generates a control algorithm based on the physical characteristics and power regulation characteristics of the adjustable equipment, and processes the target control instructions sent by the park energy coordination control system based on the control algorithm to generate actual control instructions, and then transmits the actual control instructions to the remote control / remote signaling / alarm information I / O board; the remote control / remote signaling / alarm information I / O board performs power amplification on the signal of the actual control instruction and drives the actuator to execute the actual control instruction.

[0012] Preferably, the environmental parameters include at least one of temperature parameters, humidity parameters, and pressure parameters; the actual control instructions include multiple groups of actual adjustment parameters, each adjustable device corresponds to a group of actual adjustment parameters, and each group of actual adjustment parameters includes one or more of actual adjustment power value, actual power adjustment direction, actual adjustment power speed, and actual adjustment time limit.

[0013] Preferably, the system for the high-energy-consuming industrial park to participate in power auxiliary services also includes a grid-side monitoring / control interface module, and the park energy coordination and control system is communicated with the grid-side system through the grid-side monitoring / control interface module; the grid-side monitoring / control interface module includes modular calls and standardized interfaces for adapting to the grid-side system, and the grid-side system includes at least one of a load integrator system, a grid safety and stability control system, a grid dispatching automation system, and a power market trading system.

[0014] Preferably, the modular call and standardized interface include at least one of a public network wireless communication interface, a fiber optic communication network interface and a power dispatching data network interface; the system for high-energy-consuming industrial parks to participate in power auxiliary services also includes a local communication network for communicating and connecting load monitoring / control terminals and park energy coordination and control systems, and a remote communication network for connecting the park energy coordination and control system and the grid-side monitoring / control interface module.

[0015] Preferably, the controllable device is a high-energy-consuming load, a decentralized low-energy-consuming load, a distributed energy storage device or a distributed power generation device.

[0016] Preferably, it comprises the following steps:

[0017] Step 1, the park energy coordination control system monitors the auxiliary service adjustment signal sent by the grid side system, and if there is a signal, go to step 3;

[0018] Step 2, periodically scanning the terminal status of the load monitoring terminal, includes the following steps:

[0019] Step 20, the park energy coordination control system cyclically scans the terminal status of the load monitoring / control terminal, and refreshes the load monitoring / control terminal status point table of each load monitoring / control terminal;

[0020] Step 21, the park energy coordination control system refreshes the overall system status information according to the status point table of each load monitoring / control terminal;

[0021] Step 3, adjusting the adjustable device according to the auxiliary service adjustment signal, includes the following steps:

[0022] Step 31, after receiving the auxiliary service adjustment signal, the park energy coordination control system generates an overall control logic according to the auxiliary service adjustment signal and the latest system overall status information and broadcasts the target control instruction to each load monitoring / control terminal;

[0023] Step 32: After receiving the target control instruction, each load monitoring / control terminal executes the local control logic to adjust the adjustable device.

[0024] Preferably, the step 3 further comprises the following steps:

[0025] Step 33: the load monitoring / control terminal records the control effect.

[0026] Preferably, the status information recorded in the load monitoring / control terminal status point table includes one or more of the monitoring point address, monitoring point type, monitoring point maximum power, monitoring point minimum power, monitoring point current power and monitoring point current adjustable power size.

[0027] Preferably, the overall system status information is obtained by respectively accumulating and summing the status information recorded in the status point table of each load monitoring / control terminal.

[0028] A method for a high-energy-consuming industrial park to participate in power auxiliary services, comprising the following steps:

[0029] Step 1: monitor the auxiliary service regulation signal sent by the grid-side system. If there is a signal, go to step 3;

[0030] Step 2, periodically scanning the terminal status of the load monitoring terminal, includes the following steps:

[0031] Step 20, cyclically scanning the terminal status of the load monitoring terminal, and refreshing the load monitoring terminal status point table of each load monitoring terminal;

[0032] Step 21, refreshing the overall system status information according to each load monitoring status point table;

[0033] Step 3, adjusting the adjustable device according to the auxiliary service adjustment signal, includes the following steps:

[0034] Step 31, after receiving the auxiliary service adjustment signal, generate the overall control logic according to the auxiliary service adjustment signal and the latest overall system status information and broadcast the target control instruction to each load monitoring terminal.

[0035] A computer device stores and runs the method for high-energy-consuming industrial parks to participate in power auxiliary services.

[0036] The system and method for high-energy-consuming industrial parks to participate in power auxiliary services of the present invention, wherein the park energy coordination control system and the load monitoring / control terminal cooperate with each other to realize the coordinated control of the park energy. The system and method of the present invention have better versatility and functional modular design, and can better support the flexible and reliable access of adjustable equipment in the park, and maximize the potential of the park to participate in system auxiliary services. In addition, the system and method for high-energy-consuming industrial parks to participate in power auxiliary services of the present invention, its auxiliary service adjustment signal to the final execution, undergoes two corrections during the period (specifically auxiliary service adjustment signal → target control instruction → actual control instruction), ensuring the stable and reliable operation of each adjustable device, and avoiding failures of adjustable devices due to improper adjustment. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 It is a structural schematic diagram of a system for high-energy-consuming industrial parks to participate in power auxiliary services in the present invention;

[0038] Figure 2 It is a flow chart of a method for a high-energy-consuming industrial park to participate in power auxiliary services according to the present invention;

[0039] Figure 3 It is a structural schematic diagram of the park energy coordination control system of the present invention;

[0040] Figure 4 It is a structural schematic diagram of the load monitoring / control terminal of the present invention. DETAILED DESCRIPTION

[0041] The following is combined with Figure 1-4 The given examples further illustrate the specific implementation of the system and method for high energy consumption industrial parks to participate in power auxiliary services of the present invention. The system and method for high energy consumption industrial parks to participate in power auxiliary services of the present invention are not limited to the description of the following examples.

[0042] The present invention discloses a system for a high-energy-consuming industrial park to participate in power auxiliary services, which includes a park energy coordination and control system and at least one load monitoring / control terminal that is communicatively connected to the park energy coordination and control system; each of the load monitoring / control terminals is connected to a type of adjustable device, monitors the power information of the adjustable device in real time and transmits it to the park energy coordination and control system; the park energy coordination and control system is also communicatively connected to a power grid side system, and receives an auxiliary service adjustment signal issued by the power grid side system; the park energy coordination and control system generates a target control instruction based on the auxiliary service adjustment signal and power information and transmits it to the load monitoring / control terminal, and the load monitoring / control terminal adjusts the adjustable device based on the target control instruction.

[0043] The present invention also discloses a method for high-energy-consuming industrial parks to participate in power auxiliary services, which is applied to the system for high-energy-consuming industrial parks to participate in power auxiliary services, and the method comprises the following steps:

[0044] Step 1, the park energy coordination control system monitors the auxiliary service adjustment signal sent by the grid side system, and if there is a signal, go to step 3;

[0045] Step 2, periodically scanning the terminal status of the load monitoring / control terminal, includes the following steps:

[0046] Step 20, the park energy coordination control system cyclically scans the terminal status of the load monitoring / control terminal, and refreshes the load monitoring / control terminal status point table of each load monitoring / control terminal;

[0047] Step 21, the park energy coordination control system refreshes the overall system status information according to the status point table of each load monitoring / control terminal;

[0048] Step 3, adjusting the adjustable device according to the auxiliary service adjustment signal, includes the following steps:

[0049] Step 31, the park energy coordination control system generates overall control logic and broadcasts target control instructions to each load monitoring / control terminal according to the auxiliary service adjustment signal and the latest system overall status information;

[0050] Step 32: After receiving the target control instruction, each load monitoring / control terminal executes the local control logic to adjust the adjustable device.

[0051] The system and method for high-energy-consuming industrial parks to participate in power auxiliary services of the present invention, wherein the park energy coordination control system and the load monitoring / control terminal cooperate with each other, can realize the coordinated control of park energy, the system and method of the present invention have better versatility, functional modular design, can better support the flexible and reliable access of loads in the park, and maximize the potential of the park to participate in system auxiliary services. Among them, step 1 and step 2 are executed periodically, without order.

[0052] like Figure 1 , 3 4 is an embodiment of the system for high energy consumption industrial park to participate in power auxiliary service of the present invention.

[0053] like Figure 1 As shown, the system for high-energy-consuming industrial parks to participate in power auxiliary services in this embodiment includes a park energy coordination and control system, at least one load monitoring / control terminal, a grid-side monitoring / control interface module, a local communication network and a remote communication network; the load monitoring / control terminal is communicatively connected to the park energy coordination and control system via the local communication network, and each load monitoring / control terminal is also connected to a type of adjustable device; the grid-side monitoring / control interface module is communicatively connected to the park energy coordination and control system via the remote communication network, and the grid-side monitoring / control interface module is also connected to the grid-side system; the load monitoring and control terminal collects power information of the adjustable device and transmits it to the park energy coordination and control system, the grid-side monitoring / control interface module receives the auxiliary service adjustment signal issued by the grid system and transmits it to the park energy coordination and control system, the park energy coordination and control system generates a target control instruction based on the auxiliary service adjustment signal and power information and transmits it to the load monitoring / control terminal, and the load monitoring / control terminal adjusts the adjustable device based on the target control instruction.

[0054] Preferably, the power information includes one or more of the maximum power value, the minimum power value, the current power value, the adjustable power value, the adjustable power direction, and the adjustable power speed. For example, for a certain adjustable device, the maximum power value is 50kW, the minimum power value is 10kW, the current power value is 30kW, the adjustable power value is 10kW, the adjustable power direction is upward (i.e., the power increases), and the adjustable power speed is 5kW / s. For different adjustable devices, the power information can also be appropriately increased or decreased, such as omitting the adjustable power speed.

[0055] Preferably, the auxiliary service adjustment signal includes one or more of a planned total power adjustment value, a planned power adjustment direction, a planned total power adjustment speed, and a planned total adjustment time limit. Specifically, the following is an example of the auxiliary service adjustment signal: the planned power adjustment direction is upward adjustment (that is, increasing power), the planned total power adjustment value is 100MW, the planned adjustment time limit is 10s, and the planned power adjustment speed is 10MW / s, which means that a certain adjustable device is required to adjust 100MW of power upward at a speed of 10MW / s within 10s. It should be pointed out that the park energy coordination and control system periodically transmits the power information of each adjustable device to the grid side system, and the grid side system generates an auxiliary service adjustment signal based on the power information according to actual needs.

[0056] Preferably, the target control instruction includes multiple groups of target adjustment parameters, each adjustable device corresponds to a group of target adjustment parameters, and each group of target adjustment parameters includes one or more of target power adjustment direction, target adjustment power value, target adjustment power speed, and target adjustment time limit. Specifically, the following is an example of a group of target adjustment parameters: the target power adjustment direction is upward adjustment (that is, increasing power), the target adjustment power value is 10kW, the target adjustment power speed is 5kW / s, and the target adjustment time limit is 2s, that is, a certain adjustable device is required to adjust 10kW power upward at a speed of 5kW / s within 2s.

[0057] Preferably, Figure 1 As shown, the adjustable equipment includes high-energy loads, distributed low-energy loads, distributed energy storage equipment or distributed power generation equipment. Specifically, the high-energy loads include electrolytic cells in the aluminum electrolytic industry, electric furnaces in the steel industry and other equipment, and their control needs to consider production efficiency and industrial process safety; the distributed low-energy equipment includes park lighting, building power supply, etc., and their control needs to consider the impact of users' electricity usage habits. It should be pointed out that in theory, the same type of adjustable equipment can be connected to the same load monitoring / control terminal, but in actual operation, due to the large area of ​​the park, according to actual needs, the same type of adjustable equipment in the same geographical location is often connected to the same load monitoring / control terminal. If two adjustable devices of the same type are located in different geographical locations, they need to be connected to different load monitoring / control terminals respectively.

[0058] Preferably, the grid-side system includes at least one of a load integrator system, a grid safety and stability control system, a grid dispatching automation system and a power market trading system.

[0059] Preferably, the grid-side monitoring / control interface module includes a modular call and standardized interface for adapting the grid-side system. Further, the modular call and standardized interface include at least one of a public network wireless communication interface (such as 3G / 4G / 5G), an optical fiber communication network interface (for accessing a grid security and stability control system), and an electric power dispatching data network interface (for accessing a grid dispatching automation system).

[0060] Preferably, Figure 3 As shown, the park energy coordination and control system includes a grid-side monitoring / control module, a park-side monitoring / control module and a coordination and control module. The grid-side monitoring / control interface module is connected to the park-side monitoring / control module through the coordination and control module; the grid-side monitoring / control interface module includes a load integrator interface module, a grid safety and stability control system interface module, a grid dispatching automation system interface module and an electricity market trading system interface module; the park-side monitoring / control module includes a flexible load monitoring submodule, a distributed power supply monitoring submodule, a distributed energy storage monitoring submodule and a microgrid monitoring module; the coordination and control module receives and processes the signal of the grid-side monitoring / control module and transmits it to the park-side monitoring / control module, and the coordination and control module receives and processes the signal from the park-side monitoring / control module and transmits it to the grid-side monitoring / control module.

[0061] Preferably, Figure 4As shown, the load monitoring / control terminal includes one or more of a central digital signal and control algorithm processing board, an electrical quantity signal acquisition board, a non-electrical quantity signal acquisition board, a remote control / telesignaling / alarm information I / O board, a local communication interface board and a remote communication interface board, as well as a communication interface motherboard and a power supply board respectively connected to the above circuit boards. Furthermore, the electrical quantity signal acquisition board collects voltage signals and current signals of the adjustable equipment, performs power calculation and electricity calculation, and transmits the calculation results to the central digital signal and control algorithm processing board; the non-electrical quantity signal acquisition board collects environmental parameters of the environment in which the adjustable load is located and transmits them to the central digital signal and control algorithm processing board; the central digital signal and control algorithm processing board processes the data transmitted by the electrical quantity signal acquisition board and the non-electrical quantity signal acquisition board, and generates a control algorithm based on the physical characteristics and power regulation characteristics of the adjustable equipment, and processes the target control instructions broadcast by the park energy coordination control system based on the control algorithm to obtain actual control instructions, and then transmits the actual control instructions to the remote control / telecommunication / alarm information I / O board; the remote control / telecommunication / alarm information I / O board completes the power amplification of the actual control instruction signal, and drives the actuator to execute the actual control instruction. Furthermore, the local communication interface board is connected to the local communication network and can support communication interfaces such as RS485, fieldbus, and wireless sensor network; the remote communication interface board is connected to the remote communication network and supports low-power wide-area communication, wireless public network communication, and optical fiber communication; the power board and the communication interface motherboard provide power and communication bus support for other circuit boards respectively. Furthermore, the load monitoring / control terminal includes sensors for collecting electrical quantity signals and connected to the electrical quantity signal acquisition board, such as a voltage sensor for collecting voltage signals, a current sensor for collecting current signals, etc.; the load monitoring / control terminal includes sensors for collecting non-electrical quantity signals and connected to the non-electrical quantity signal acquisition board, such as a temperature sensor for collecting temperature parameters, a humidity sensor for collecting humidity parameters, and a pressure sensor for collecting pressure parameters, etc.

[0062] Specifically, the control algorithm and control instruction generation are explained by taking the electrolyzer as an example: if a control instruction is received requiring the power of the electrolyzer to be adjusted up by 1MW, the current power is 5MW, and the current temperature is 950°C, then the control algorithm mainly calculates the power increase of 5MW based on the electrolyzer heat dissipation model, and whether the electrolyzer will operate beyond the safe temperature range (such as 950°C) after the power rises to 6MW. If there is a risk of exceeding the safety temperature range, the load monitoring / control terminal will correct it to the actual control instruction based on the control algorithm, such as adjusting 3MW as above.

[0063] Preferably, the actual control instruction includes multiple groups of actual adjustment parameters, each adjustable device corresponds to a group of actual adjustment parameters, and each group of actual adjustment parameters includes one or more of the actual adjustment power value, the actual power adjustment direction, the actual adjustment power speed, and the actual adjustment time limit. Specifically, the following is an example of the actual adjustment parameters: the actual power adjustment direction is upward adjustment (that is, increasing power), the actual adjustment power value is 5kW, the actual adjustment power speed is 2.5kW / s, and the actual adjustment time limit is 2s, that is, a certain adjustable device is required to adjust 5kW power upward at a speed of 2.5kW / s within 2s.

[0064] Preferably, the environmental parameters include at least one of a temperature parameter, a humidity parameter, and a pressure parameter (atmospheric pressure parameter). For example, when the electrolytic cell is involved in auxiliary services in the electrolytic aluminum industrial process, the environmental parameters that need to be monitored include the temperature of the electrolytic cell, the humidity of the electrolytic cell surrounding environment, and the atmospheric pressure, so as to better calculate the heat dissipation model.

[0065] Preferably, the local communication network is implemented by wireless communication or industrial Ethernet.

[0066] Preferably, the remote communication network uses optical fiber communication as the main access to the power grid safety and stability control system, uses 3G / 4G / 5G as the main access to the load integrator system or the power market trading system, and uses the power dispatching data network to access the power grid dispatching automation system.

[0067] like Figure 2 The figure shows an embodiment of the method for high energy consumption industrial park to participate in power auxiliary service of the present invention.

[0068] The method for a high-energy-consuming industrial park to participate in power auxiliary services in this embodiment includes the following steps:

[0069] Step 1: The park energy coordination control system monitors the auxiliary service adjustment signal issued by the grid side system through the grid side monitoring / control interface module, and if there is a signal, go to step 3.

[0070] Step 2, periodically scanning the terminal status of the load monitoring / control terminal, includes the following steps:

[0071] Step 20, the park energy coordination control system cyclically scans the terminal status of the load monitoring / control terminal through the local communication network, and refreshes the load monitoring / control terminal status point table of each load monitoring / control terminal. Further, the cycle of the cyclic scanning and the data of the terminal status are set according to the performance of the local communication network, and the terminal status data at least includes the current power value, the current adjustable power direction and the current adjustable power speed.

[0072] Preferably, the status information recorded in the load monitoring / control terminal status point table includes one or more of the monitoring point address, monitoring point type, monitoring point maximum power, monitoring point minimum power, monitoring point current power, and monitoring point current adjustable power, which can be appropriately increased or decreased as needed; Table 1 is an example of the load monitoring / control terminal status point table:

[0073] Table 1:

[0074]

[0075]

[0076] Note: Each load monitoring / control terminal is a monitoring point.

[0077] Step 21, the park energy coordination control system refreshes the overall system status information according to the status point table of each load monitoring / control terminal. Further, the overall system status information is obtained by accumulating and summing the status information recorded in the status point table of each load monitoring / control terminal, and the refresh cycle of the overall system status information is ≤5min.

[0078] Step 3, adjusting the adjustable device according to the auxiliary service adjustment signal, includes the following steps:

[0079] Step 31, the park energy coordination control system generates overall control logic based on the auxiliary service adjustment signal and the latest system overall status information and broadcasts control instructions to each load monitoring / control terminal.

[0080] Preferably, the overall control logic refers to the process of the park energy coordination control system sending control instructions to the load monitoring / control terminal corresponding to the adjustable equipment (flexible load, distributed power supply, distributed energy storage, microgrid).

[0081] Preferably, the park energy coordination control system takes each adjustable device corresponding to the "load monitoring / control terminal" as a node, and based on the information recorded in the load monitoring / control terminal point table, combined with the equipment nameplate parameters of the adjustable equipment (determined when the equipment leaves the factory) and the on-site equipment operation control system, the node flexibility status data (rated power, adjustable power range, adjustable speed range, safe operating range) and node convergence status data (rated power convergence, adjustable power range convergence, adjustable speed range convergence, safe operating range convergence) can be determined to generate a target control instruction that meets the requirements of the auxiliary service adjustment signal.

[0082] Specifically, regarding the node flexibility status data, the node numbers are 1 to n, taking node 1 as an example: the rated power P e1 ; Adjustable power includes adjustable power up and adjustable power down, the adjustable power range is 0~ΔPst1 , the power range can be adjusted down to 0~ΔP xt1 ; The adjustment rate is also divided into an upward adjustment rate and a downward adjustment rate. The upward adjustment rate range is 0~ΔP sv1 , the lower adjustment rate range is 0~ΔP xv1 ; The safe operating range is P s1 ~P s2 It should be noted that ΔP st1 , ΔP xt1 , ΔP sv1 , ΔP xv1 , P s1 , P s2 The values ​​of the above parameters are determined according to the characteristics of the controllable equipment (including high-energy loads, distributed low-energy loads, distributed power supply equipment, and distributed energy storage equipment) and combined with parameter configuration and setting. The above parameters are collected by the corresponding load monitoring / control terminal and uploaded to the park energy coordination control system. The following is an example of the node flexibility status data: In the node flexibility status data, the rated power and adjustable power range are directly read from the load monitoring / control terminal point table, and the adjustment speed range and safe operation range are generally read from the factory nameplate parameters, such as the electrolyzer (generally adjusted by the tap transformer of the electrolyzer rectifier system of the field equipment operation control system) The adjustment speed range is between 1.0MW / s-1.2MW / s (the adjustment speed range is determined by the switching rate of the transformer tap changer and the rectifier thyristor of the field equipment operation control system), and the safe operation range is 940℃-960℃ (the safe operation range is read from the electrolyzer nameplate parameters).

[0083] For the node aggregation status data, the node rated power aggregation P e =P e1 +P e2 +…+P en ; Nodes can increase power aggregation ΔP st =ΔP st1 +ΔP st2 +…+ΔP stn , the node can reduce the power aggregation ΔP xt =ΔP xt1 +ΔP xt2 +…+ΔP xtn , the speed range convergence ΔP is adjusted on the node sv =ΔP sv1 +ΔP sv2 +…+ΔP svn , the speed range converges at the node ΔP xv =ΔP xv1 +ΔP xv2 +…+ΔP xvn,The node safe operation interval aggregation needs to satisfy the safe operation interval of each node. If the safe operation interval of a node does not satisfy the node safe operation interval aggregation, the node will not participate in the adjustment.

[0084] After receiving the auxiliary service adjustment signal, the park energy coordination and control system allocates and processes the demand for the auxiliary service adjustment signal in combination with the node flexibility status data of the nodes under its jurisdiction, the latest convergence status data of the current nodes under its jurisdiction, and the auxiliary service power market price signal, and generates a target control instruction, which includes the power adjustment size, adjustment direction (upward adjustment or downward adjustment), adjustment rate, and adjustment time limit for each node. The target control instruction does not exceed the current state data value of each node and does not exceed the safe operating range of each node. Among them, the increase in load power consumption, the decrease in distributed generation output power, and the energy storage charging are equivalent to the upward adjustment of power consumption; the decrease in load power consumption, the increase in distributed generation output power, and the energy storage discharge are equivalent to the downward adjustment of power consumption.

[0085] Step 32: After receiving the control instruction, each load monitoring / control terminal executes the local control logic to adjust the adjustable device.

[0086] Preferably, the local control logic refers to the control process by which the load monitoring / control terminal controls its corresponding adjustable equipment (high-energy-consuming load, decentralized low-energy-consuming load, distributed power generation equipment, distributed energy storage equipment).

[0087] Preferably, in the method for high-energy-consuming industrial parks to participate in power auxiliary services in this embodiment, step 3 further includes the following steps:

[0088] Step 33, the load monitoring / control terminal records the control effect. Furthermore, the control effect refers to the difference between the actual regulated power value, regulation rate, etc. and the command value (or target value) issued by the control instruction. The larger the difference, the worse the control effect. The control effect can be used as the calculation of ancillary service market transactions. Specifically, the following is an example of a control effect: if the control instruction requires a monitoring point to adjust the power down by 1MW after receiving the control instruction, if the control result recorded by the load monitoring / control terminal is a power down regulation of 0.8MW, then a 0.2MW under-regulation difference will be recorded in the control effect.

[0089] Step 34, periodically execute step 2 until the park energy coordination and control system monitors the auxiliary service adjustment signal again.

[0090] The present invention also provides a method for a high-energy-consuming industrial park to participate in power auxiliary services, which implements the park energy coordination control system through software, and includes the following steps:

[0091] Step 1: monitor the auxiliary service regulation signal sent by the grid-side system. If there is a signal, go to step 3;

[0092] Step 2, periodically scanning the terminal status of the load monitoring terminal, includes the following steps:

[0093] Step 20, cyclically scanning the terminal status of the load monitoring terminal, and refreshing the load monitoring terminal status point table of each load monitoring terminal;

[0094] Step 21, refreshing the overall system status information according to each load monitoring status point table;

[0095] Step 3, adjusting the adjustable device according to the auxiliary service adjustment signal, includes the following steps:

[0096] Step 31, after receiving the auxiliary service adjustment signal, generate the overall control logic according to the auxiliary service adjustment signal and the latest overall system status information and broadcast the target control instruction to each load monitoring terminal.

[0097] The present invention also provides a computer device, and an embodiment of the computer device is: the computer device stores and runs the method for high-energy-consuming industrial parks to participate in power auxiliary services to implement the park energy coordination control system. Further, the computer device includes a processor and a memory, the memory stores the method for high-energy-consuming industrial parks to participate in power auxiliary services, and the processor retrieves and runs the method for high-energy-consuming industrial parks to participate in power auxiliary services from the memory.

[0098] The above contents are further detailed descriptions of the present invention in combination with specific preferred embodiments, and it cannot be determined that the specific implementation of the present invention is limited to these descriptions. For ordinary technicians in the technical field to which the present invention belongs, several simple deductions or substitutions can be made without departing from the concept of the present invention, which should be regarded as falling within the protection scope of the present invention.

Claims

1. A system for high-energy-consuming industrial parks to participate in power auxiliary services, characterized in that: It includes: A park energy coordination and control system and at least one load monitoring / control terminal in communication with the park energy coordination and control system; Each of the load monitoring / control terminals is connected to an adjustable device, monitors the power information of the adjustable device in real time and transmits it to the park energy coordination and control system; the park energy coordination and control system is also connected to the grid-side system for communication, and receives the auxiliary service adjustment signal from the grid-side system; the park energy coordination and control system generates a target control instruction based on the auxiliary service adjustment signal and power information and transmits it to the load monitoring / control terminal, and the load monitoring / control terminal adjusts the adjustable device based on the target control instruction; The power information includes one or more of a maximum power value, a minimum power value, a current power value, an adjustable power value, an adjustable power direction, and an adjustable power speed; the auxiliary service adjustment signal includes one or more of a planned total adjustment power value, a planned power adjustment direction, a planned total adjustment power speed, and a planned total adjustment time limit; the target control instruction includes at least one group of target adjustment parameters, each adjustable device corresponds to a group of target adjustment parameters, and each group of target adjustment parameters includes one or more of a target adjustment power value, a target power adjustment direction, a target adjustment power speed, and a target adjustment time limit.

2. The system for high-energy-consuming industrial parks to participate in power auxiliary services according to claim 1 is characterized by: The park energy coordination control system includes a grid-side monitoring / control module, a park-side monitoring / control module and a coordination control module, wherein the grid-side monitoring / control module is connected to the park-side monitoring / control module via the coordination control module; The grid-side monitoring / control module includes a load integrator interface module, a grid safety and stability control system interface module, a grid dispatching automation system interface module and an electricity market trading system interface module; the park-side monitoring / control module includes a flexible load monitoring sub-module, a distributed power supply monitoring sub-module, a distributed energy storage monitoring sub-module and a microgrid monitoring module; the coordination control module receives and processes signals from the grid-side monitoring / control module and transmits them to the park-side monitoring / control module, and the coordination control module also receives and processes signals from the park-side monitoring / control module and transmits them to the grid-side monitoring / control module.

3. The system for high-energy-consuming industrial parks to participate in power auxiliary services according to claim 1 is characterized by: The load monitoring / control terminal includes one or more of a central digital signal and control algorithm processing board, an electrical quantity signal acquisition board, a non-electrical quantity signal acquisition board, a remote control / remote signaling / alarm information I / O board, a local communication interface board, and a remote communication interface board, as well as a communication interface motherboard and a power supply board respectively connected to one or more of the central digital signal and control algorithm processing board, the electrical quantity signal acquisition board, the non-electrical quantity signal acquisition board, the remote control / remote signaling / alarm information I / O board, the local communication interface board, and the remote communication interface board.

4. The system for high-energy-consuming industrial parks to participate in power auxiliary services according to claim 3 is characterized by: The electrical quantity signal acquisition board acquires voltage signals and current signals of adjustable equipment, performs power calculation and electricity calculation, and transmits the calculation results to the central digital signal and control algorithm processing board; the non-electrical quantity signal acquisition board acquires environmental parameters of the environment in which the equipment to be adjusted is located and transmits them to the central digital signal and control algorithm processing board; the central digital signal and control algorithm processing board processes the data transmitted by the electrical quantity signal acquisition board and the non-electrical quantity signal acquisition board, and generates a control algorithm based on the physical characteristics and power regulation characteristics of the adjustable equipment, and processes the target control instructions sent by the park energy coordination control system based on the control algorithm to generate actual control instructions, and then transmits the actual control instructions to the remote control / remote signaling / alarm information I / O board; the remote control / remote signaling / alarm information I / O board performs power amplification on the signal of the actual control instruction and drives the actuator to execute the actual control instruction.

5. The system for high-energy-consuming industrial parks to participate in power auxiliary services according to claim 4 is characterized by: The environmental parameters include at least one of temperature parameters, humidity parameters, and pressure parameters; the actual control instructions include multiple groups of actual adjustment parameters, each adjustable device corresponds to a group of actual adjustment parameters, and each group of actual adjustment parameters includes one or more of actual adjustment power value, actual power adjustment direction, actual adjustment power speed, and actual adjustment time limit.

6. The system for high-energy-consuming industrial parks to participate in power auxiliary services according to claim 1 is characterized by: The system for high-energy-consuming industrial parks to participate in power auxiliary services also includes a grid-side monitoring / control interface module, and the park energy coordination and control system is communicated with the grid-side system through the grid-side monitoring / control interface module; the grid-side monitoring / control interface module includes modular calls and standardized interfaces for adapting to the grid-side system, and the grid-side system includes at least one of a load integrator system, a grid safety and stability control system, a grid dispatching automation system, and a power market trading system.

7. The system for high-energy-consuming industrial parks to participate in power auxiliary services according to claim 6 is characterized by: The modular call and standardized interface includes at least one of a public network wireless communication interface, a fiber optic communication network interface and a power dispatching data network interface; the system for high-energy-consuming industrial parks to participate in power auxiliary services also includes a local communication network for communicating and connecting load monitoring / control terminals and park energy coordination and control systems, and a remote communication network for connecting the park energy coordination and control system and the grid-side monitoring / control interface module.

8. The system for high-energy-consuming industrial parks to participate in power auxiliary services according to claim 1 is characterized by: The controllable equipment is a high energy consumption load, a decentralized low energy consumption load, a distributed energy storage device or a distributed power generation device.

9. A method for high energy consumption industrial park to participate in power auxiliary service, characterized in that: It is applied to the system for high-energy-consuming industrial parks to participate in power auxiliary services as described in any one of claims 1 to 8, and includes the following steps: Step 1, the park energy coordination control system monitors the auxiliary service regulation signal sent by the grid side system, and if there is a signal, proceed to step 3; Step 2, periodically scanning the terminal status of the load monitoring terminal, includes the following steps: Step 20, the park energy coordination control system cyclically scans the terminal status of the load monitoring / control terminal, and refreshes the load monitoring / control terminal status point table of each load monitoring / control terminal; Step 21, the park energy coordination control system refreshes the overall system status information according to the status point table of each load monitoring / control terminal; Step 3, adjusting the adjustable device according to the auxiliary service adjustment signal, includes the following steps: Step 31, after receiving the auxiliary service adjustment signal, the park energy coordination control system generates an overall control logic according to the auxiliary service adjustment signal and the latest overall system status information, and broadcasts the target control instruction to each load monitoring / control terminal; Step 32: After receiving the target control instruction, each load monitoring / control terminal executes the local control logic to adjust the adjustable device.

10. The method for high energy consumption industrial park to participate in power auxiliary service according to claim 9, characterized in that: The step 3 also includes the following steps: Step 33: the load monitoring / control terminal records the control effect.

11. The method for high energy consumption industrial park to participate in power auxiliary service according to claim 9, characterized in that: The status information recorded in the load monitoring / control terminal status point table includes one or more of the monitoring point address, monitoring point type, monitoring point maximum power, monitoring point minimum power, monitoring point current power, and monitoring point current adjustable power size.

12. The method for high energy consumption industrial park to participate in power auxiliary service according to claim 9 or 11, characterized in that: The overall system status information is obtained by respectively accumulating and summing the status information recorded in the status point table of each load monitoring / control terminal.

13. A method for high energy consumption industrial park to participate in power auxiliary service, characterized in that: It includes the following steps: Step 1: monitor the auxiliary service regulation signal sent by the grid-side system, and if there is a signal, go to step 3; Step 2, periodically scanning the terminal status of the load monitoring terminal, includes the following steps: Step 20, cyclically scanning the terminal status of the load monitoring terminal, and refreshing the load monitoring terminal status point table of each load monitoring terminal; Step 21, refreshing the overall system status information according to each load monitoring status point table; Step 3, adjusting the adjustable device according to the auxiliary service adjustment signal, includes the following steps: Step 31, after receiving the auxiliary service adjustment signal, generate the overall control logic according to the auxiliary service adjustment signal and the latest system overall status information and broadcast the target control instruction to each load monitoring terminal.

14. A computer device, characterized in that: It stores and runs the method for high-energy-consuming industrial parks to participate in power auxiliary services as described in claim 13.

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