Active power distribution network reactive power control method with limitation to number of operating times of capacitor taken into account

A technology of active power distribution network and number of operations, applied in the direction of reactive power adjustment/elimination/compensation, reactive power compensation, etc., can solve the equation constraints and the optimality of the objective function, reduce the service life of capacitors, and violent voltage fluctuations And other issues
CN103715701AActive Publication Date: 2014-04-09STATE GRID CORP OF CHINA +2
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
STATE GRID CORP OF CHINA
Publication Date
2014-04-09

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Abstract

The invention relates to an active power distribution network reactive power control method with limitation to the number of operating times of a capacitor taken into account, and belongs to the technical field of operation and control of an electric power system. The method includes the steps that a three-phase branch trend equation of an active power distribution network is provided, a reactive power control objective function is established, and various actual restraints are comprehensively taken into account; a second order cone slack technology is utilized to handle a reactive power control problem; eventually a second order cone programming algorithm is utilized to conduct calculation to acquire reactive power control values and operating moments of a disperse reactive compensation device, the capacitor, a continuous reactive compensation device and a distributed power supply, and therefore active power distribution network reactive power control with the limitation to the number of the operating times of the capacitor taken into account is achieved. The method can be used for radial and annular active power distribution network reactive power control with the limitation to the number of the operating times of the capacitor taken into account, and control accuracy is high. The second order cone slack technology and the second order cone programming algorithm are adopted, and therefore both optimality and solve efficiency of active power distribution network reactive power control are greatly improved.
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Description

technical field

[0001] The invention relates to a reactive power control method of an active distribution network considering the limitation of capacitor operation times, and belongs to the technical field of power system operation and control. Background technique

[0002] In recent years, the penetration rate of distributed generation (Distributed Generation, DG), energy storage devices and reactive power compensation devices in the distribution network has gradually increased, and the traditional distribution network has gradually become an adjustable and controllable active distribution network. In the daily management of the power grid, under the time-varying load power and photovoltaic forecast power output data, there are many challenges to face:

[0003] 1. In the distribution network reactive power control problem, in addition to continuously adjustable distributed power reactive power, continuous reactive power compensation device reactive power and other continuou...

Claims

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