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Power grid on-line decision-stabilizing control system and control method based on super real-time emulation

A decision-making system and control system technology, applied in electrical components, circuit devices, AC network circuits, etc., can solve the problems of unable to update the strategy table in time, unable to get rid of the limitation of strategy mismatch theory, etc., to improve the security and practicability of the system Strong and adaptable effect

Active Publication Date: 2014-12-31
CHINA ELECTRIC POWER RES INST +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When continuous faults occur in the power system within the refresh period, this method cannot update the policy table in time
[0006] Both of the above two methods have hypothetical faults and pre-decision-making processes, and essentially cannot get rid of the theoretical limitations of strategy mismatch.

Method used

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  • Power grid on-line decision-stabilizing control system and control method based on super real-time emulation
  • Power grid on-line decision-stabilizing control system and control method based on super real-time emulation
  • Power grid on-line decision-stabilizing control system and control method based on super real-time emulation

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Experimental program
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Embodiment

[0068] The following describes in detail the working process of a power grid online stability decision-making control system based on ultra-real-time simulation.

[0069] For ease of description, it is assumed that the system only includes one stability control substation 301, and three stability control execution stations 401, 402, and 403 are connected externally, among which the stability control execution station 401 collects the voltage of power plant A (two generators A1 and A2 in total) , current, active output and reactive output, etc., and can cut off any generator of power plant A; the stability control execution station 402 collects the voltage, current, active output and Reactive power output, etc., and any generator of power plant B can be cut off; the stability control execution station 403 collects and sends out the voltage, current, active power and reactive power of the line L.

[0070] Before the operation of the online stability decision-making control syste...

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Abstract

The invention relates to a power grid on-line decision-stabilizing control system and a control method based on super real-time emulation. According to the power grid on-line decision-stabilizing control system, a data processing module is arranged in a dispatching center, is used for acquiring power grid state information, and transmits power grid operating data to an on-line decision-stabilizing system, the on-line decision-stabilizing system is arranged in the dispatching center and sends a stabilizing controlling decision and overall power grid information to a stabilizing controlling device, the stabilizing controlling device is locally mounted at a transformer substation or a power station, and a data conversion and communication port is connected between the on-line decision-stabilizing system and the stabilizing controlling device and inside the stabilizing controlling device, and is used for data communication between the on-line decision-stabilizing system and the stabilizing controlling device and inside the stabilizing controlling device. A power grid stabilizing decision and control are carried out in real time based on the super real-time emulation, a control decision matched with actual working conditions of a power grid is obtained, a prevention and control decision and an emergency control decision are carried out simultaneously in a system, stable control is carried out on the power grid, and the stability of the power grid is effectively improved.

Description

technical field [0001] The invention relates to the field of power system stability control, in particular to a power grid online stability decision-making control system and control method based on super real-time simulation. Background technique [0002] The power system is a complex nonlinear dynamic system, and there are various stability problems such as power angle stability, frequency stability, and voltage stability. Once the power system stability is destroyed, it will cause huge economic losses and catastrophic consequences. Power system safety and stability control is an economical and effective means to ensure the stable operation of the power system, including three parts: preventive control, emergency control and recovery control. Damage, operating parameters seriously exceed the specified range, and the further expansion of the accident caused a large-scale power outage. The emergency control of the power system mainly includes various measures such as cuttin...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J3/00
Inventor 田芳李亚楼张星周孝信于之虹裘微江史东宇邱健刘敏郭中华安宁吕颖鲁广明徐得超丁平刘宇星李勤新赵敏王天琪李刚张松树江涵江兴凌周智强陈继林康建东刘娜娜吴陶何春江秦长峰陈勇李星
Owner CHINA ELECTRIC POWER RES INST
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