现代电子技术
現代電子技術
현대전자기술
MODERN ELECTRONICS TECHNIQUE
2015年
11期
140-142
,共3页
特殊逆变器%阶梯波%拓扑%谐波
特殊逆變器%階梯波%拓撲%諧波
특수역변기%계제파%탁복%해파
special inverter%step wave%topology%harmonic
特殊逆变器工作频率为数kHz，通常采用脉冲法控制策略，输出波形特性差。针对传统特殊逆变器缺点，提出阶梯波调制方法。介绍特殊逆变器的拓扑结构，分析了基于阶梯波调制的特殊逆变器的基本原理，研究了阶梯调制算法。该特殊逆变器拓扑结构简单、开关器件开断损耗小、整机效率高，具有良好的谐波抑制能力。建立仿真模型，并进行分析，得出仿真结果。从仿真结果可以看出，采用阶梯波调制算法的特殊逆变器输出波形特性好，谐波含量低。
特殊逆變器工作頻率為數kHz，通常採用脈遲法控製策略，輸齣波形特性差。針對傳統特殊逆變器缺點，提齣階梯波調製方法。介紹特殊逆變器的拓撲結構，分析瞭基于階梯波調製的特殊逆變器的基本原理，研究瞭階梯調製算法。該特殊逆變器拓撲結構簡單、開關器件開斷損耗小、整機效率高，具有良好的諧波抑製能力。建立倣真模型，併進行分析，得齣倣真結果。從倣真結果可以看齣，採用階梯波調製算法的特殊逆變器輸齣波形特性好，諧波含量低。
특수역변기공작빈솔위수kHz，통상채용맥충법공제책략，수출파형특성차。침대전통특수역변기결점，제출계제파조제방법。개소특수역변기적탁복결구，분석료기우계제파조제적특수역변기적기본원리，연구료계제조제산법。해특수역변기탁복결구간단、개관기건개단손모소、정궤효솔고，구유량호적해파억제능력。건립방진모형，병진행분석，득출방진결과。종방진결과가이간출，채용계제파조제산법적특수역변기수출파형특성호，해파함량저。
Since the operating frequency of special inverter is several kilohertz,the pulse modulation method is usually adopted, and its output waveform feature is bad,the step wave modulation method is proposed. In this paper,the topological structure of special inverter is introduced,the basic principle of special inverter based on the step wave modulation is analyzed,and the step wave modulation algorithm is studied. The advantages of the special inverter are simple topological structure,low switching loss,high efficiency of the whole machine,and good harmonic suppression ability. The simulation model was established and analyzed,and simulation results were obtained. The simulation results show that the special inverter with step wave modulation algorithm has good output waveform characteristic and low harmonic content.
