单相整流/逆变H桥剖析及仿真研究  

Analysis and simulation study on single-phase H-bridge rectifier/inverter

作　　者：陈贤明[1] 吕宏水[1] 刘国华[1] 

机构地区：[1]国网电力科学研究院,江苏南京210003

出　　处：《电气传动自动化》2012年第5期1-7,24,共8页Electric Drive Automation

摘　　要：对整流和逆变的能量双向流动单相H(型)桥进行PWM控制作了详细研究,比较了单、双极性调制逆变的优缺点。当H桥工作在整流时,要求实现功率因数校正PFC功能,即交流侧进线电流正弦、功率因数接近1,工作在逆变时,要输出电流正弦、(并网)功率因数接近1,最后对H桥在单周控制下的运行,利用Matlab/Simulink的仿真,验证了对单相整流和逆变H桥的分析结果,证明了单极性调制较优。The detailed study has been paid for PWM control of single-phase H-bridge reetiher/mverter, whlell is able to implement double-direction energy flow. It also compares advantages and disadvantages between single- pole and double-pole PWM inverter. When H-bridge operates as a rectifier, power factor correction （PFC） function must be implemented. Namely, input sinusoidal current and power factor 1 in AC side of the rectifier is satisfied. Also when H-bridge operates as an inverter, output sinusoidal current and power factor 1 （when connects to electric grid） is ensured. At last, the simulation of H-bridge operation under one cycle control （OCC） is completed with Matlab/Simulink software. It verifies the validity of H-bridge analysis and control with single-pole PWM better than that of double-pole PWM.

关 键 词：单相H桥 脉宽调制PWM BUCK电路 BOOST电路 单周控制 Matlab SIMULINK仿真 

分 类 号：TM46[电气工程—电器]