电工技术学报2017，Vol.32Issue(z1)：196-202,7.DOI:10.19595/j.cnki.1000-6753.tces.160821
具有分压电容平衡功能的新型组合九电平逆变器
A New Simplificated Combination Nine Level Inverter with the Function Balancing Partial Voltage Capacitances
摘要
Abstract
Conventional multilevel inverter has the problems that partial pressure capacitance is difficult to balance and its structure becomes complex when number of electrical level are more than three time, this paper simplified combined topology consisted of the extension of NP mixed H bridge topology and balanced topology of independent partial pressure capacity combined topology firstly, and simplified, a new of nine levels inverter topology is got, then proposed a four carrier SPWM modulation strategy suitable for the topology. Finally the simulation analysis shows that extension of NP mixed H bridge topology among two partial pressure capacitor voltage amplitude at 0V reference voltage fluctuate, its amplitude to ±25V. Partial pressure of new nine level inverter capacitor voltage value fluctuates up and down in expectation of 100V, fluctuation amplitude is less than +5V. Simulation results show that the new nine levels inverter topologies and modulation strategies applied, not only reduce the amplitude of the output voltage ripple, to achieve the effect of equilibrium points ah capacitance, also reduced the application of two switch tube, reduce the economic costs.关键词
分压电容平衡/混合H桥拓扑/九电平逆变器/四载波层叠Key words
Partial pressure capacity balance/mixed H bridge topology/nine level inverter/four carrier cascade分类
信息技术与安全科学引用本文复制引用
甘雪,曹太强,林玉婷,刘威..具有分压电容平衡功能的新型组合九电平逆变器[J].电工技术学报,2017,32(z1):196-202,7.基金项目
西华大学研究生创新基金研究项目(ycjj2016062)、太阳能技术集成及应用推广四川省高校重点实验室项目(TYN2015-09)、流体及动力机械教育部重点实验室研究基金(西华大学)、攀枝花市科技计划项目-太阳能光伏离/并网智能化控制逆变一体集成应用(2014CY-S-1-2)、攀枝花市科技计划项目-光伏发电系统关键技术研制(2015CY-C-5)、四川省电力电子节能技术与装备重点实验室项目(新型高效无桥高功率因数变换器的研究-szjj2015-066)资助. （ycjj2016062）
