Prevention and control optimization decision method based on offline strategy online check of security control system

A preventive control and off-line strategy technology, applied in the direction of AC network circuits, electrical components, circuit devices, etc., can solve problems such as large power grid security risks, grid security risks, and complex grid security and stability characteristics, so as to eliminate security risks and ensure economic efficiency. The effect of avoiding the grid security risk of insufficient or mismatched control amount
CN108847660AActive Publication Date: 2018-11-20NARI TECH CO LTD +2
8 Cites 14 Cited by

Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
NARI TECH CO LTD
Publication Date
2018-11-20

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The invention discloses a prevention and control optimization decision method based on offline strategy online check of a security control system. Firstly, according to the real-time status of the security control system and the offline policy model parameters, the on-duty strategy of each defended fault is identified; and then, aimed at the real-time status of the grid, security check is carriedout on each fault on-duty strategy, and the fault with transient or dynamic or static security and stability margin is used as a risk fault; after that, aimed at the real-time status of the grid, theminimum of the sum of the prevention and control cost and the emergency control cost of fault probability is taken as an objective function to calculate a prevention and control optimization decisionthat satisfies the security and stability requirements of the grid under all risk faults; the security check of other faults defended by the security control system is carried out for the prevention and control optimization decision, until, through iteration, all the faults defended by the security control system under the prevention and control optimization strategy meet the requirements of secure and stable operation of the grid after the faults, thereby avoiding the grid security risk of insufficient offline strategy control quantity or mismatch.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention relates to the technical field of power grid dispatching operation and control, in particular to a preventive control optimization decision-making method based on an offline policy online check of a safety control system. Background technique

[0002] The "Guidelines for the Safety and Stability of Power Systems" defines three levels of safety and stability standards for power system operation and control according to the severity of faults. After serious faults in the series, under the condition of correct operation of protection, switch and reclosing, it should be able to maintain stable operation, and it is allowed to take stable control measures such as machine cutting and load shedding when necessary. The safety control system of the present invention is set up to meet the requirements of the second-level safety and stability standards.

[0003] Due to the uncertainties in time and space of load, power generation, and grid structure...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More