A method for configuring the condenser of UHVDC sending-end power grid

Abstract

The invention belongs to the technical field of power grid operation and control, and in particular relates to a method for configuring a condenser for an UHV DC sending-end power grid, in particular to a method for configuring a condenser for an UHV DC sending-end system power grid. The invention includes: obtaining the operating parameters of the UHV DC sending-end power grid; determining the configuration quantity of the condenser; analyzing the reactive power and voltage sensitivity of the UHV DC sending-end power grid to obtain a primary selection set of the configuration positions of the condenser; The worker bee colony algorithm is used to calculate the configuration strategy of the condenser; the configuration scheme of the condenser for the UHV DC sending end power grid is obtained. The invention can more effectively realize the effective configuration of the condenser in the UHV DC sending end grid, improve the stability of the grid voltage operation, and provide a technical basis and a practical method for the operation and control of the UHV DC transmission system. With the increase of UHV AC and DC transmission systems, the development of reactive power optimal allocation strategies will inevitably have a greater demand and have better commercial development prospects.

Description

technical field [0001] The invention belongs to the technical field of power grid operation and control, and in particular relates to a method for configuring a condenser for an UHV DC sending-end power grid, in particular to a method for configuring a condenser for an UHV DC sending-end system grid. Background technique [0002] my country's primary energy and load are distributed in reverse. In order to meet the urgent needs of clean energy transmission, load center power supply, energy conservation and emission reduction, the State Grid has vigorously developed UHV AC and DC technologies suitable for long-distance and large-capacity transmission. The positioning of UHV AC and DC transmission projects and the long-distance and large-capacity transmission of large-scale energy bases have become the main ways to alleviate the contradiction between China's energy resources and economic layout. At present, my country is in the transition period of UHV power grid development. W...

AI Technical Summary

Problems solved by technology

However, with the implementation of the UHV DC project, the hazards of power frequency overvoltage control at the sending end, chain reaction at the receiving end grid, and commutation failure are gradually increasing. State output requirements, preventing commutation failure and fast large-capacity reactive power requirements in transient states, assisting DC to recover quickly, and insufficient response capability, while the phase advance capability, sub-transient output characteristics and strong excitation capabilities of the controller can just meet the requirements above requirements

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