基于改进内点法的含双馈型风电场的电力系统无功优化研究

针对含双馈型风电场的电力系统无功补偿问题,建立了以有功网损最小、节点电压偏差最小为目标的无功优化模型;并考虑了风电场旋转备用的约束,提出了跟踪中心轨迹内点法实现无功优化。跟踪中心轨迹内点法在传统内点法基础上引入自适应压缩因子,利用自适应压缩因子的动态收敛性,提高算法的局部搜索能力,从而提高算法的效率。在IEEE14系统中进行了仿真测试。实验结果证明了提出的无功优化算法的有效性,算法能较好的减少有功网损;同时使其他目标函数值都得到了不同程度的改善。

Reactive Power Optimization Based on Modified Interior Point Method for Power System with DFIG Wind Farms

TheSpaperSstudies on reactive power compensation for the power system with doubly fed wind farm, meanwhile establishes the reactive power optimization model based on minimum active power loss and the minimum node voltage deviation, then proposes a tracking center locus interior point method to achieve reactive power optimization. An adaptive compression factor is introduced into the traditional interior point method based on the tracking center trajectory interior point method, by using the dynamic convergence of the adaptive compression factor, the local search ability of the algorithm is improved, and the efficiency of the algorithm is improved. The simulation test is carried out in the IEEE14 system, the experimental results show the effectiveness of the proposed reactive power optimization algorithm, the algorithm can reduce the active power loss, and the other objective function value can be improved to different extent.