基于短路故障残压变换法的暂态稳定计算

基于短路故障残压变换法，提出了电力系统不对称暂态稳定计算方法。该方法结合了相分量法模型适应性和对称分量法计算效率高的优点，通过矩阵变换形成暂态稳定计算的机网接口和正序等效导纳矩阵，避免了复杂的复合序网形成过程。该方法既能应用于相分量坐标，也能应用于对称分量坐标，能够实现对多重故障和参数不对称元件的处理。仿真结果表明该方法简洁有效。

Transient Stability Calculation Based on Residual Voltage Transformation Method for Short-circuit Faults

Based on residual voltage transformation method for short-circuit calculation,a unified approach has been proposed for transient stability calculations under unbalanced operating conditions of power system.The proposed method combines the advantages of both adaptive modeling in a,b,c phase components and 0,1,2 sequence coordinates with high calculation efficiency.The equivalent positive sequence admittance matrix is derived with matrix translation in place of the traditional sequence network connection,which is the interface with generators in stability simulation.The new method is suitable for both a,b,c coordinates and 0,1,2 symmetric components coordinates.It can deal with multiple faults and element with unbalance parameter as well.The simulation results show the new method is simple and effective.