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基于自适应全局滑模控制的微电网稳定控制策略

DOI: 10.13334/j.0258-8013.pcsee.2014.31.010, PP. 5534-5541

Keywords: 微电网,稳定控制器,全局滑模控制,自适应,鲁棒性

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Abstract:

设计了一种基于自适应全局滑模控制的微电网稳定控制策略,并基于储能设备开发了相应的微电网稳定控制器。根据微电网的不同运行方式,首先分析稳定控制器的运行特性,建立稳定控制器的数学模型。考虑到系统的不确定性和非线性,该文为微电网稳定控制器提出自适应鲁棒全局滑模控制系统,保证系统在参数不确定、存在外界干扰等情况下的稳态及动态特性。仿真和实验结果证明,微电网稳定控制器能够保证微电网在不同运行模式下的稳定性。在微电网并网运行时有效地抑制微电网与主电网交换功率波动,达到微电网与主电网交换功率可控;在微电网孤岛运行时,提供电压、频率支持;实现微电网在2种运行模式之间无缝切换。

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