级联多电平statcom直流电压平衡控制策略的研究-电力电子与电力传动专业论文.docx

4.3.5 PS-PWM调制部分444.4 本章小结··············································································································································· 465. 实验结果与分析·········································································································································· 475.1实验系统的结构····································································································································475.2 系统运行实测结果及其分析·················································································································475.2.1稳态性能测试·································································································································475.2.2 PWM发生测试485.3 实验结论··············································································································································· 496. 结论与展望················································································································································· 506.1 结论·······················································································································································506.2 存在的问题及改进建议························································································································506.3 展望·······················································································································································51参考文献 ·························································································································································· 52在校期间发表的论文······································································································································· 551绪论1.1课题背景简介随着国家经济和工业技术的发展，电力用户对电能质量的要求也日益提高。电网中存 在大量的干扰性负荷，如电弧炉、轧钢机和矿井提升机等，它们从电网中吸收大量的无功 功率，引起电网电压波动和闪变，严重影响着电网的供电质量。归纳