Analysis And Simulation Of The Impact Of Wind Power Integration On The Relay Protection Of Distribution Network

Wind Power Integration is a crucial problem of wind power generation throughout, the impact of wind Power Integration, which is the basic of wind Power Integration. As a significant part of effect about the relay protection of distribution network. There are some protection devices in distribution network which can greatly improve the reliability of power the system, after the wind power integration, when the system occurs some faults, with the power of wind turbine increases, the short-circuit current increase a lot which the wind turbine provides. The relay protection in the system is no longer fit.The paper uses the MATLAB 2014a, built a model which the double-fed wind power integration, to analyze the operation of four stages after wind power integration. Through the simulating of the waveform, make a comprehensive analyze the feature of start-up procedure of the wind turbine. The feature of the active and reactive power output.In order to study the effect of the system protection about wind power integration, build a current protection module, firstly verify the feasibility of the protection module through simulation. As a basis to study whether the impact of system protection device when the wind power integration, and then according to the different position of the wind power integration, set the short-circuit fault to compute and analysis, analysis the relationship between short-circuit and the capacity of the wind turbine, listed the expressions, write functions about program to output waveform through MATLAB, the figure shows clearly of the relationship between short-circuit and the capacity of the wind turbine in different place of the wind power integration. The appliance of POWERGUI to analyze the waveform of short-circuit. Observe the transformation of parameter of wind power generation, as well as the action state of breaker and make an overall analysis. Making some conclusions and proved by simulating.In order to study the impact of the automatic reclosing device about wind power integration, building a automatic reclosing module, and verifying the feasibility of the module through simulating. There in a overall analysis about the impact of automatic reclosing device when wind power integration at the end of the distribution network.The paper, make a comprehensive analysis about the impact of the system protection when the wind power integration, and put forward some corresponding solutions. The important theoretical and practical significance of the study improve the reliability and availability when the wind power integration.