含风电机组的配网无功优化

研究了分布式电源中发展较为成熟的风力发电机组并网后配电网的无功优化问题，提出一种基于场景发生概率的无功优化综合指标，该指标由网损和静态电压稳定裕度两部分构成。基于该指标，提出一种新的无功优化模型。在该模型中，提出风电机组输出功率典型场景的选取策略，无功优化潮流计算中考虑了风电机组的特点，将其作为电压静特性节点处理。在求解方法上，采用基于自适应权重的遗传算法求解。算例表明，提出的模型和算法是可行的，对风电系统的运行具有一定的参考价值。

Reactive Power Optimization in Distribution System With Wind Power Generators

The paper analyzes reactive power optimization problem in distribution system with wind power generators. A compositive index based on scenario analysis is presented. Power loss and static voltage stability margin are taken into consideration in this index. A new model including the index for reactive power optimization is proposed. The strategy for selecting typical scenarios of wind power output is discussed from the view point of probability. In power flow calculation, the wind generator is regarded as a PQ node with static voltage characteristics. A genetic algorithm based on self-adaptive weight is proposed and applied to solve the reactive power optimization problem. The study cases show that the proposed method is feasible and provides a reference value for the operation of wind generation system.