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Auxiliary decision-making method and device for transient stability prevention and control and electronic equipment

A technology of preventive control and auxiliary decision-making, applied in the direction of single-network parallel feeding arrangement, etc., can solve the problems of high computational complexity and slow speed.

Active Publication Date: 2020-04-10
NARI TECH CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the heuristic method requires multiple iterations to continuously approach the target solution, so the speed is slow and the computational complexity is high

Method used

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  • Auxiliary decision-making method and device for transient stability prevention and control and electronic equipment

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Experimental program
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Effect test

Embodiment 1

[0081] see figure 1 As shown, the present invention provides a transient stability preventive control auxiliary decision-making method, comprising:

[0082] Step 1: Obtain the operating status data of the grid under the current operating mode.

[0083] Step 2: Based on the current operating state data, conduct transient stability evaluation calculations for all faults in the expected fault set to determine whether there is a transient instability fault. If there is a transient instability fault, go to step 3, otherwise end the auxiliary decision calculation process.

[0084] Step 3: For each transient instability fault, a set of control schemes is formed based on the control performance index, including:

[0085] For each transient instability fault, calculate the control performance indicators of all control measures in the preventive control measure space;

[0086] Screen control measures based on control performance indicators to obtain effective control measures;

[00...

Embodiment 2

[0114] An embodiment of the present invention provides an auxiliary decision-making device for transient stability prevention and control, including:

[0115] An acquisition module, configured to acquire operating state data in the current operating mode of the power grid;

[0116] The identification module is used to perform transient stability evaluation and calculation on all faults in the expected fault set based on the operating state data in the current operating mode, and identify transient instability faults;

[0117] The calculation module is used to form a set of control schemes based on the control performance index for each transient instability fault;

[0118] The combination module is used to enumerate and combine the control schemes in multiple transient instability fault control scheme sets to form a control scheme set that meets the control requirements of multiple transient instability faults;

[0119] The pre-selection module is used to use the transient st...

Embodiment 3

[0135] An embodiment of the present invention provides an electronic device, including a processor and a memory. The memory is used to store a computer program executable by the processor. When the processor executes the computer program, the above-mentioned transient stability prevention control assistance is realized decision making method.

[0136] At the hardware level, besides the processor, the electronic device optionally also includes an internal bus, a network interface, and a memory. Wherein, the memory may include a memory, such as a high-speed random-access memory (Random-Access Memory, RAM), and may also include a non-volatile memory (Non-Volatile Memory), such as at least one disk memory. Of course, the electronic device may also include hardware required by other services.

[0137] The processor, network interface, and memory may be interconnected via an internal bus, which may be an Industry Standard Architecture (ISA) bus, a Peripheral Component Interconnect ...

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Abstract

The invention discloses an auxiliary decision-making method and device for transient stability prevention and control and electronic equipment. The method and the device are applied to transient stability prevention and control decision of a power system. The method comprises steps of based on anticipated fault transient stability evaluation calculation of a current operation mode, calculating a control measure control performance index of the transient instability fault and screening effective control measures; forming a plurality of control measure schemes meeting the control precision requirement according to the control measure performance index sorting result; and enumerating and combining the control measure schemes of different transient instability faults, carrying out transient stability prediction on the combined scheme by adopting a fault transient stability classification prediction model, and selecting the scheme which meets the transient stability requirement and has theminimum control cost as a prevention and control auxiliary decision control measure suggestion. According to the method, the online intelligent auxiliary decision of transient stability prevention andcontrol of the power system is realized, and the requirements of calculation speed and accuracy can be met.

Description

technical field [0001] The invention belongs to the technical field of power system automation, and in particular relates to an auxiliary decision-making method, device and electronic equipment for transient stability prevention and control. Background technique [0002] The interconnection of regional power grids, the construction of a large number of direct current transmission projects, and the continuous expansion of new energy power generation in the grid have increased the complexity of grid operation, and the operation mode is increasingly approaching the limit of safe and stable operation. When it is detected that there is a safety and stability problem under the predicted accident of the power grid, the dispatcher needs to take measures to implement preventive control and move the working point from outside the stability domain to inside the domain. Auxiliary decision-making for preventive control is an important function of the smart grid dispatching control system...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J3/48
CPCH02J3/48
Inventor 鲍颜红徐泰山吴峰徐伟任先成周海锋夏小琴杨君军张金龙
Owner NARI TECH CO LTD
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