Developmental Research of PWM Current Source Inverter-Converter System with Sinusoidal Inputs and Outputs

1.新型正弦输入脉宽调制三相变流器的研制昭和62周年，特地订购了10kVA电流型逆变器-变流器系统的测试设备。利用实验装置对三相逆变器的脉宽调制技术进行了详细的研究，确定了最优的脉宽调制模式。2.新型正弦输入脉宽调制单相逆变器的研制开发了新型单相逆变器，并通过实验和理论验证了该单相逆变器的有效性。3.正弦输出PWN电流型逆变器的脉宽调制技术的建立采用牛顿法进行数值分析，得到了无谐波的最优模式。实验和分析结果表明，该逆变器在较宽的逆变器频率范围内，利用最优的脉宽调制方式产生正弦电流。4.用于…的脉宽调制电流型逆变器系统的研制5.具有正弦输入输出的PWM电流型逆变器-逆变器系统矢量控制的研究实验证明，通过改变逆变器逆变器中逆变器部分的调制系数，可以实现对输出电流的快速调节。6.同步电机和无换向器同步电机的运行特性研究。具有正弦输入输出的PWM MOS场效应管电流型逆变器系统的研究从理论上证实了该系统具有理想的正弦电流。8.将该系统与PWN电压型逆变器系统进行了比较，并与PWM电压型逆变器系统进行了比较，发现该系统是功率变换电路配置的目标。较少

1.Development of New PWM Three-Phase Converter with Sinusoidal Inputs At the 62th year of Showa, test facilities for 10 kVA PWM current source inverter-converter system were purchased with special order. By using the test facilities, PWM technique for three-phase converter was investigated in detail, and optimal PWM pattern was decided.2.Development of New PWM Single-Phase Converter with Sinusoidal Inputs New single-phase converter was developed, and by the experimental and theoretical results it was verified that the single-phase converter was available.3.Establishment of PWM Technique for PWN Current Source Inverter with Sinusoidal Outputs By numerical analysis employing the Newton methods, the optimal pattern which contains no harmonics was derived. The experimental and the analyzed results proved that this inverter liad sinusoidal currents by utilizing the optimal PWM pattern, over a wide range of inverter frequency.4.Development of PWM Current Source Inverter-converter System for … More Four-quadrant Drive of Induction Motor Induction motor was driven in four-quadrant by the test facilities, and the optimal system for slip frequency control was developed.5.Research of Vector Control by PWM Current Source Inverter-converter System with Sinusoidal Inputs and Outputs The experiment proved that a Quick regulation of output currents was achieved by varying the modulation index for the PWM pattern in the inverter section.6.Research of Operating Characteristics of Synchronous Motor and Commutatorless Motor Syriclironous motor was driven by the test facilities, and smooth drive of the motor over a wide range of speed was observed.7.Research of PWM MOS FET Current Source Inverter-converter System with Sinusoidal Inputs and Outputs It was theoretically confirmed that the system had perfect sinusoidal currents by applying the MOS FET.8.Comparison with PWN Voltage Source Inverter-converter System As a results of comparison with PWM voltage source inverter-converter system, it was found that this system was the goal of circuit configuration for power conversion. Less