独立微电网有功功率自主与协调控制

发布时间：2018-06-25 14:30

本文选题：控制 + 模型　；参考：《农业工程学报》2014年10期

【摘要】：为了实现微电网内各单元的协调控制,针对独立微电网设计了有功功率自主与协调控制方法。该方法基于分层控制结构,1次调整由风力分布式发电单元、光伏分布式发电单元、储能单元完成,根据电压-有功功率控制曲线自主控制。2次调整由微电网控制器完成,对风力分布式发电单元、光伏分布式发电单元、储能单元及负荷单元协调控制,实时监测储能单元的电压、有功功率,如果在2次调整允许的波动范围内,微电网控制器不下发控制指令;否则,电压越限时将储能该时刻的瞬时功率作为功率基准值实现工作曲线的平移,功率越限时,微电网控制器通过改变间歇性分布式发电单元的发电功率及投入或切除负荷完成2次调整。并建立了微电网状态转换协调控制模型,更加适用于计算机处理和工程化的实现。通过Matlab算例验证了所提出控制方法的有效性。
[Abstract]:In order to realize the coordinated control of each unit in the microgrid, the active power autonomous and coordinated control method is designed for the independent microgrid. Based on the hierarchical control structure, the method is adjusted by wind power distributed generation unit, photovoltaic distributed generation unit and energy storage unit, and controlled by microgrid controller 2 times independently according to the voltage active power control curve. Coordinated control of wind distributed generation unit, photovoltaic distributed generation unit, energy storage unit and load unit, real-time monitoring of the voltage and active power of the energy storage unit, if within the allowable fluctuation range of two adjustments, The microgrid controller does not issue control instructions; otherwise, when the voltage exceeds the limit, the instantaneous power of the energy storage time is used as the power reference value to realize the translation of the working curve, and when the power exceeds the limit, The microgrid controller adjusts twice by changing the generating power of the intermittent distributed generation unit and by switching in or removing the load. A coordinated control model for state conversion of microgrid is established, which is more suitable for the realization of computer processing and engineering. The effectiveness of the proposed control method is verified by a Matlab example.
【作者单位】：中国农业大学信息与电气工程学院;青岛农业大学机电工程学院;
【基金】：国家高技术研究发展计划(863计划)(2012AA050217) 中央高校基本科研业务费专项资金资助(2013YJ008)
【分类号】：TM761.2

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