轨迹驱动切负荷的布点协调优化算法的简化

Simplification of Optimization and Coordination Algorithm for Trajectory-driven Load-shedding Placement

随着系统规模及各种不确定性的增加,轨迹驱动切负荷(TDLS)的布点优化的计算量急剧增加。综合考虑负荷模型对布点优化的计算量及精度的影响,验证在TDLS布点中采用简化负荷模型的可行性。同时,改进已有的协调优化算法。包括简化其流程,减少迭代次数,减少灵敏度系数的更新次数。仿真表明,上述简化方法对计算精度的影响并不显著,但计算量大幅降低,有利于工程实用。

With the increase of scale of power systems and uncertainties,the computational burden of optimization and coordination of trajectory-driven load-shedding(TDLS)placement is aggravated.In consideration of the impact of load model uncertainty on computational burden and optimization accuracy,the feasibility of using the simplified load model in TDLS placement optimization is studied.Meanwhile,the current optimization and coordination algorithm of TDLS placement has been improved,including reducing iterations and the update frequency of sensitivity.Simulation results show that the simplified method doesn't have significant impact on optimization accuracy.But,with greatly reduced computational burden,the method is readily applicable to engineering projects.