Stability Control Generator Tripping Based on Thermal/Hydro/Wind Bundled Power Transmission System
As the state's vigorous development and utilization of wind resources,large-scale wind power bases have been gradually formed,but in our country the energy resources and energy consumption show a reverse distribution,and large amount of wind power requires transmitting through high-voltage transmission lines.Due to the random,intermittent and uncontrollable characteristics of wind power,so wind power needs to be combined with conventional hydropower and thermal power in transmission.Thermal/hydro/wind bundled power transmission can bring huge economic benefits,but also cause changes in grid security and stability.In the event of system failures,the removal of the conventional hydropower and thermal power unit is not enough to guarantee the stable system operation or costs too much.This paper analyzes the influence of wind power,hydropower and thermal power unit on stability control generator tripping respectively,points out their advantages and disadvantages as preferred tripped generator,then puts forward the optimization of generator tripping program in the event of bundled power transmission failures.The actual power grid simulation using PSASP program verifies that this optimization scheme can guarantee the safe and stable system operation after faults,significantly reduce the amout of generator tripping required for the system stable recovery,improve the system recovery features after faults,and greatly enhance the safety and economy of system operation.
security and stability control devicethermal/hydro/wind bundled powertransient stabilitygenerator trippingvoltage stability
NETL
NSTL
万方数据
维普
