考虑电压稳定性的电力系统多目标无功优化

MULTI-OBJECTIVE REACTIVE POWER OPTIMIZATION CONSIDERING VOLTAGE STABILITY

提出了考虑电压稳定性的多目标无功优化的一种方法。在本无功优化的多目标中，包括了电压稳定性的静态指标——系统的最大负荷裕度。文中首先在模态分析法的基础上找出系统的薄弱点，并决定在这些地方加装多少容量的无功补偿设备。这对于整个电网进行合理的无功补偿，提高整个系统的电压稳定性，增强送电能力都具有很重要的意义。多目标无功优化问题在数学上利用模糊集理论和模拟退火算法来实现。

This paper proposes a method for VAR optimization taking voltage stability into account. Based on the QV model analysis, the methodfirst calculates the least eigenvalues of the jacobian matrix of power flow equation and the bus participation facors corresponding to themode. By comparing the participation factors, the weaker buses are then determined. Next, the interactive fuzzy satisfying method and simulated and simulated annealing approach are applied to solve general multi-objective VAR optimization problems.