含风电场区电网无功优化的研究

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1、华j￡电力大学硕士学位论文翁瑟摘要随着风力发电技术的嗣趋成熟，风电并网规模的日益增大，电溺中的不确定因素也日益烟剧，对电力系统安全和经济运行的要求也越来越离。丽传统的无功优化模型已不能很好的适成臼益复杂的电潮结构，因此研究风电并网后豹无功优化问题，对于改善风电并网性能具有重要的意义。针对位于地理位置较近的风电场风速相关性问题，提毖了～种以Nataf逆交换技术为基础实现风速檩关性的样本空间采样，从而模拟各个风电场风速使得仿真结巢更接近于实际；针对菲线性无功优化问题中既有连续优化又有离散优化问题，设计了～种混合簧能算

2、法求解无功优化模型，该算法剩用预估～校正内点法和遗传算法的交蓊求解，实现了连续变量和离散变量的分离，更有利于求解到全局最优解；针对风电并网弓

3、起的电压波动闯题，为了馒系统电压维持在合理的水平，在传统无功优化模型的基础上提出了阍时考虑静态电压稳定裕度和有功损耗最小的多目标无功优化模型。最后利用包括风电场的改进的l嚣EE，30节点系统进彳亍算例分析，验证了所提模型及算法的有效性。研究成果对于地区电躐无功优化、降低网损、及可靠运行具有理论和实际指导意义。关键诲：风力发电，无功优化，混合算法，风速相关性AbstractW

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8、antageoustothe910baloptimalsolution．BasedonthetraditionalmodelofreactVepoweroptimization，indcxofstaticvoltagestabilityisintroducedandamodelofmultiobjectivereactivepoweroptimizationisestablished，wheretheactivepower10ssminimization，staticvoltagestab订itymarginma

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