Big urban power grid homochronous compensator optimization method

Abstract

The present invention provides a big urban power grid homochronous compensator optimization method, belonging to the electric power system optimization technology field. The method comprises: establishing linear function relations between the upper limit and the lower limit of reactive power of a synchronous generator and the active power of the synchronous generator, and obtaining relevant parameters; determining the number of scenes where the generator is subjected to operation of a homochronous compensator in a low-load phase, and establishing a homochronous compensator optimization configuration model; decomposing the model into a main problem model and a subproblem model; performing solution of the main problem model, and obtaining a homochronous compensator optimization result; and taking the solution of the main problem model into the subproblem model, in each scene, allowing the subproblem model to perform verification of exchange feasibility for the solution of the main problem model, and performing iteration cycle solution until obtaining the optimal solution of the main problem model. The reasonable configuration of the homochronous compensator enhances the voltage control means of an urban power grid, better develops the voltage reactive power regulation potential of the urban power grid itself and guarantee the safe and stable operation of an electric power system.

Description

technical field [0001] The invention belongs to the technical field of power system optimization, and in particular relates to a method for optimizing a synchronous condenser of a large urban power grid. Background technique [0002] Urban power grid generally refers to the power systems of various voltage levels that supply power to cities. It is not only an important urban infrastructure, but also an important part of the regional power system. It has the characteristics of large consumption, high load density, and high power supply quality requirements. [0003] According to the "Notice on Adjusting the Standards for Cities Scale" issued by the State Council in 2014, my country has six cities that meet the standards of super-large cities: Beijing, Shanghai, Tianjin, Chongqing, Guangzhou, and Shenzhen, and those that meet the standards of super-large cities include Nanjing, Hangzhou, Among 10 cities including Wuhan, 124 meet the large-scale standard. Affected by my country...

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Problems solved by technology

It also does not consider the synchronous generator operated by a similar synchronous condenser as a dynamic reactive power source, and does not use the optimization algorithm for optimal decision-making

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