电源学报2026，Vol.24Issue(5)：180-188,9.DOI:10.13234/j.issn.2095-2805.2026.5.180
基于级联H桥的柔性互联类正弦调制方法
A Sine-wave-like Modulation Method for Cascaded H-bridge-based Soft Open Point
摘要
Abstract
The soft open point(SOP),as a sort of promising flexible power electronic device in future smart distribution network,can take the place of normal open point to achieve flexible interconnection and power regulation.The shared module soft open point(SMSOP),as a new flexible interconnection topology,has the advantages of high efficiency,small size and low cost.However,SMSOP is prone to overmodulation when using conventional pulse width modulation(PWM)and has high losses if the shared module accounts for more.A new sine-wave-like modulation method is proposed.The sine-wave-like modulation adds a square-wave platform on the basis of the sine-wave modulation.Sine-wave modulation is used at the start and end of each half-cycle to prevent over-modulation at zero-crossing time;square-wave modulation is used in the middle to reduce the switching losses of the shared modules.Finally,the correctness and effectiveness of the new modulation strategy are verified by building a three-phase experimental platform.关键词
柔性互联/配电网/共用模块/类正弦调制Key words
Flexible interconnection/distribution network/shared module/sine-wave-like modulation分类
信息技术与安全科学引用本文复制引用
陶艳,王晨清,孔祥平,林金娇,郑俊超,宾子君..基于级联H桥的柔性互联类正弦调制方法[J].电源学报,2026,24(5):180-188,9.基金项目
江苏省电力试验研究院有限公司科技资助项目(DSY202307)This work is supported by Technology Project of Jiangsu Electric Power Test Research Institute Co.,Ltd.under the grant of DSY202307 （DSY202307）
