交直流混合电力系统快速潮流计算

针对交直流混合电力系统潮流算法计算量大、计算速度慢的缺点,提出一种基于广义特勒根定理的交直流混合电力系统快速潮流计算方法。该方法将修正方程的注入功率改为注入电流,得到基于统一迭代法的电流注入型潮流计算模型,该潮流模型既保留了统一迭代法的强收敛性,又降低了模型计算量。在此基础上,应用广义特勒根定理求解所建潮流模型,既减少修正方程求解量又提高了潮流求解速度。对22节点交直流混合电力系统进行仿真计算,仿真结果验证了该方法的正确性和快速性。

Fast Power Flow Calculation of Hybrid AC/DC Power Systems

Aiming at the disadvantages of power flow algorithm of hybrid AC/DC power system, such as large calculation amount and slow calculation speed, this paper proposes a fast power flow calculation method for hybrid AC/DC power system based on generalized Tellegen''s theorem. In this method, the injected power of the modified equation is changed to the injected current, and the current injection power flow model is obtained based on the unified iterative method. The generalized Tellegen''s theorem is applied to solve the established power flow model, which can reduce the calculation amount of solving modified equation and improve the solving speed of power flow. The simulation results of 22 nodes hybrid AC/DC power systems verify the correctness and rapidity of the proposed method.