计及可控移相器的电力系统潮流优化

Optimal Power Flow of Power System with Thyristor Controlled Phase Shifting Transformer

根据双芯对称离散型可控移相器的拓扑结构、开关组态及工作原理,通过分析考虑等值阻抗影响下的相量关系,推导出稳态数学模型。采用最优潮流法建立计及可控移相器的潮流优化模型,并根据重、轻负荷状态,分别设置平衡线路负载率和线路有功损耗最小化两组目标函数。以IEEE-14节点系统为例,计算分析了可控移相器的潮流优化效果。仿真结果验证了优化模型的有效性,利用可控移相器调节潮流分布,可达到平衡负载率或有功损耗最小化的目标。

In the paper, topological structure, switch configuration, and working principle of TC.SD-TCPST are described. Then the phase relations and steady state mathematical model are analysi.sand deducted, considering equivalent impedance. The OPF model with TCPST is established; the objective functions are to balance load rate and to minimize power losses, based on heavy or light load situation. Using IEEE-14 system as example to analysis effect of optimal power flow with TCPST. The simulation results confirm the effectiveness of OPF model,and using TCPST to control power flow is able to achieve objective of balancing load rate or minimizing power losses.