格式网与链状网汇集风电功率能力的比较

Electric Power Construction(2014)

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Abstract
集中式风电场的风机台数多,风电功率大,为了提高风电场集电网的可靠性,提出采用10 kV或35 kV格式网建设风电场的集电网。建立格式网模式风电场集电网的拓扑结构、停运率评估模型,提出格式网和链状集电网的停运率指标,利用MATLAB/Simulink搭建格式网和链状集电网的停运率仿真模型,比较2种集电网电缆故障切除前后汇集母线的电压电流水平以及2种电网汇集风电功率的能力,对比实例中格式网和链状集电网的电缆投资和电量收益。结果表明:链状网等效电量不足期望值是格式网等效电量不足期望值的4.6倍,格式网集电网比链状集电网的总体收益高61.2万元,格式网汇集的风电功率大,有利于风电功率的送出,投资前景良好。
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Key words
Wind Power,Smart Grid Development,Grid Integration,Reactive Power Optimization,Grid Integrated Control
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