中文摘要：

针对分布式可再生能源并网接口的先进控制策略,详细阐释了能使并网逆变器模拟传统同步发电机动态行为的同步逆变器技术.在同步发电机数学模型的基础上,给出了同步逆变器的控制策略,并深入讨论了同步逆变器参与电网调压和调频的能力,及其相应控制器参数的整定方法.通过将并网逆变器控制为同步逆变器,可以大大提升电网对含并网逆变器的分布式电源的接纳能力,降低传统并网逆变器对电网稳定带来的冲击.最后,利用1台10 kW的同步逆变器样机验证并网逆变器在模拟同步发电机特性、调节无功输出、以及参与电网调压和调频等方面的可行性和正确性.

英文摘要：

Face to the inverter-based interfaces of renewable energy resources （RERs）,the advanced control scheme of a grid-connected inverter to emulate the features of traditional synchronous generator,named as synchronverter,is explained and validated in detail.On the basis of mathematical model of traditional synchronous generator,the control strategy of synchronverter is achieved.Furthermore,the settings of the key parameters which influence the performances of synchronverter on voltage and frequency regulation of utility are carefully addressed.With the aid of synchronverter,the grid-connected inverter can be equivalently viewed as a synchronous generator.As a result,the RERs can be connected to utility in a utility-friendly way,which may enhance the penetration of RERs in future RER-oriented utility.Finally,a 10 kW prototype is built to verify the validation and effectiveness of the synchronverter on reactive generation,voltage supporting and frequency regulation.