中国电机工程学报Issue(10)：2576-2583,8.DOI:10.13334/j.0258-8013.pcsee.2015.10.025
非理想电网电压情况下并网变换器高阶解耦复数滤波并网同步技术
Grid Synchronization Technique With High-order Decoupled Complex Filters for Grid-connected Converters Under Non-ideal Grid Voltages
摘要
Abstract
Fast and accurate grid synchronization is of great importance for effectively operating the grid-connected converters under non-ideal grid voltages. In order to solve the problem of the negative effect of the unbalanced, distorted, dc-offset grid voltages on the accuracy of grid synchronization, a new high-order decoupled complex filter based solution is proposed in this paper. The mathematical model of the system is derived. The system stability analysis and parameter tuning procedure are discussed. Three solutions are presented to deal with the adverse effect of the dc component in voltages on the grid synchronization. Finally, the experimental tests are carried out on the TMS320F2812 DSP. The experimental results verify the effectiveness of the proposed method.关键词
并网同步/非理想电网电压/并网变换器/正序分量/负序分量Key words
grid synchronization/non-ideal grid voltage/grid-connected converter/positive sequence component/negative sequence component分类
信息技术与安全科学引用本文复制引用
王德玉,刘文钊,郭小强,卢志刚,王宝诚,孙孝峰..非理想电网电压情况下并网变换器高阶解耦复数滤波并网同步技术[J].中国电机工程学报,2015,(10):2576-2583,8.基金项目
国家自然科学基金项目(51307149,51407154)；河北省自然科学基金项目(E2014203237, E2015203283)。Project Supported by National Natural Science Foundation of China (51407154) （51307149,51407154）
Hebei Province Natural Science Foundation (E2014203237, E2015203283) （E2014203237, E2015203283）
