Simulation and experimental results show that the proposed converter has sine wave input current and output voltage, low harmonic content, adjustable power factor, and zero voltage commutation.
仿真和实验结果表明：所提出的变换器输入电流和输出电压为正弦，谐波小且输入功率因数可控，并可实现零电压换流。
The inverter uses opetimal phase angle control scheme to suppress the surge voltage during the commutation of current.
为了抑制电流换相期间的浪涌电压，逆变器采用最佳相角控制。
The new voltage control topology is presented, as well as the commutation logic for the thyristor bypass switch is provided.
介绍了新型电压控制拓扑、晶闸管旁路开关的交换逻辑。
The results of research and manufacture show that if fulfils the specification of aero high voltage REPM DC motor after commutation problem is solved, and it is possible to use traditional structure.
解决了高空换向难题之后电动机能满足航空电机的技术要求，采用传统的有刷结构是完全可行的。
The duty cycles for DC excitation and forced commutation modes are determined according to the SC pin voltage.
直流励磁和强制换向模式的占空比根据引脚SC 的电压确定。
Based on electrical circuit theory, the formulation of the relation between mutual admittance and converter commutation voltage of the multi-infeed HVDC system was given.
基于电路基本理论知识，推导出多馈入交、直流并联的高压直流输电系统耦合导纳和换相电压关系表达式。
Commutation failure is one of the most common failures for the high voltage direct current transmission system.
在特高压直流输电中换相失败也是主要的故障。
The results of the experiment successfully show that it can realize the modulation of the frequency of the output voltage. meanwhile, it validates the feasibility of four-step commutation strategy.
实验结果表明本实验装置系统能成功实现对输出电压和频率进行调节，进一步验证了四步换流技术的可行性。
In this design, the collector-to-emitter voltage is sensed to determine the directions of the output currents for the 4-step commutation strategy.
该文检测器件集射极电压确定输出电流方向，并据此实现四步换流。
The paper analyzes in detail the synthetical method, the voltage gain and the switch action sequence of matrix converter based on the zero-output commutation strategy.
该文对零输出换相策略、电压增益及开关动作顺序进行了详细的分析，并与双电压合成控制策略下共模电压的最大瞬时值进行了对比。
The modified types will not be equipped with commutation transformer and the three-phase alternating current power supply directly acquires DC voltage through bridge type rectifier.
改进型不配整流变压器，将三相交流电源直接由桥式整流获得直流电压。
The modified types will not be equipped with commutation transformer and the three-phase alternating current power supply directly acquires DC voltage through bridge type rectifier.
改进型不配整流变压器，将三相交流电源直接由桥式整流获得直流电压。
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