基于DDS的阶梯波合成FPGA控制多电平逆变的设计实现  

FPGA-Implemented Design of Step Modulation Control for Multilevel Converter Based on Direct Digital Frequency Synthesis(DDS)

作　　者：诸江[1] 

机构地区：[1]北京航空航天大学软件学院,北京100083

出　　处：《通信电源技术》2006年第3期5-7,共3页Telecom Power Technology

摘　　要：阐述通过直接数字频率合成技术(DDS)用FPGA设计阶梯波合成的多电平逆变控制的原理和要点,使多电平逆变器控制电路实现数字化控制。研究表明该方案结构合理,具有高频率分辨率,可以实现快速频率切换,适用于不同频率的电力逆变系统,和大规模多电平级联电路的控制设计。This paper describes the principle of step modulation designed by Direct Digital Frequency Synthesis（DDS） based on FPGA implemented. It realizes full digital control for control circuit of multilevel converter and amends the way of traditional step modulation design. A design is reasonable and has high differentiation of frequency, also it can fast switch frequency while keeping phase consecutive, also it is suitable for power electrical system with different frequencies. It is easy for the design of cosmically Cascaded-Inverter circuit.

关 键 词：DDS 阶梯波合成 多电平逆变 FPGA 

分 类 号：TM464[电气工程—电器]