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A transient stability preventive control auxiliary decision-making method, device and electronic equipment

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

Active Publication Date: 2021-05-14
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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  • A transient stability preventive control auxiliary decision-making method, device 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 a transient stability preventive control auxiliary decision-making method, device and electronic equipment, which are applied in the decision-making of transient stability preventive control of electric power system. Control performance indicators of control measures for transient instability faults and screen effective control measures, and then form multiple control measure schemes that meet the control accuracy requirements according to the ranking results of control measure performance indicators, and enumerate control measure schemes for different transient instability faults Combination, the fault transient stability classification prediction model is used to predict the transient stability of the combination scheme, and the scheme that meets the requirements of transient stability and the minimum control cost is selected as a recommendation for preventive control auxiliary decision-making control measures. The invention realizes the on-line intelligent auxiliary decision-making for the prevention and control of transient stability of the power system, and can meet the requirements of calculation speed and accuracy.

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 Patents(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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