电测与仪表Issue(7)：51-54,4.
一种多电平逆变器及其并网策略
A Multilevel Inverter and the Strategy for Grid-Connected
张玉垒 1张宇翔 1郭敏1
作者信息
- 1. 郑州大学 物理工程学院，郑州450001
- 折叠
摘要
Abstract
Recently, the single phase multilevel inverter gains increasing attractive due to its own advantages. A mul-tilevel inverter with diode 2 N-1 cascade superposition is introduced in this paper. Taking a 15 level inverter with diode 2N-1 cascade superposition as example, the realization of grid connection based on single-phase space vector modula-tion ( SVPWM) technology is proposed. The phase and frequency of the reference current are obtained from Grid volt-age with the amplitude determined by the reference power. The system employs current instantaneous feedback and PI controller to perform unity power factor. A model under MATLAB/SIMULINK condition is presented to simulate and calculate the harmonic distortion of the Grid current under different reference powers. The result of the simulation in-dicates that the power factor is high and current harmonic content is less and verifies the feasibility of the proposed method.关键词
多电平逆变器/单相空间矢量PWM/并网/仿真Key words
multilevel inverter/single-phase SVPWM/Grid-connected/simulation分类
信息技术与安全科学引用本文复制引用
张玉垒,张宇翔,郭敏..一种多电平逆变器及其并网策略[J].电测与仪表,2014,(7):51-54,4.
