CONTROLLER FOR CURRENT TYPE POWER CONVERTER

• Main Authors: KISHIMOTO TOSHIHIKO, SHIMOSATO NOBORU, JO SHIN
• Format: Patent
• Language: English; Japanese
• Published: 08.02.2018
• Subjects: APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC,OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWERSUPPLY SYSTEMS; CONTROL OR REGULATION THEREOF; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUTPOWER; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; ELECTRICITY; GENERATION

PROBLEM TO BE SOLVED: To suppress distortion of a voltage waveform and ripple of an electric current generated by setting an overlapping time.SOLUTION: A controller 10 includes: a command value creating part 20 for creating command values |du|, |dv|, |dw|; a command value changing part 21 for receiving the command values |du|, |dv|, |dw| from the command value creating part 20 and changing at least one command value selected for each space determined according to phases of AC voltages Vu, Vv, Vw, of the received command values |du|, |dv|, |dw| to output the command values |du|,|dv|,|dw|; and a PWM signal creating part 22 for creating PWM signals Sup, Svp, Swp, Sun, Svn, Swn on the basis of the command values |du|, |dv|, |dw| output from the command value changing part 21 and a carrier signal Ca.SELECTED DRAWING: Figure 4 【課題】オーバーラップタイムを設けることによって生ずる電圧波形の歪みや電流のリプルを低減する。【解決手段】制御装置１０は、指令値｜ｄｕ＊｜，｜ｄｖ＊｜，｜ｄｗ＊｜を生成する指令値生成部２０と、指令値生成部２０から指令値｜ｄｕ＊｜，｜ｄｖ＊｜，｜ｄｗ＊｜を受け取り、受け取った指令値｜ｄｕ＊｜，｜ｄｖ＊｜，｜ｄｗ＊｜のうち、交流電圧Ｖｕ，Ｖｖ，Ｖｗの位相に応じて決定される複数の空間ごとに選択される少なくとも１つの指令値を変更したうえで、指令値｜ｄｕ＊｜，｜ｄｖ＊｜，｜ｄｗ＊｜を出力する指令値変更部２１と、指令値変更部２１から出力される指令値｜ｄｕ＊｜，｜ｄｖ＊｜，｜ｄｗ＊｜とキャリア信号Ｃａとに基づき、ＰＷＭ信号Ｓｕｐ，Ｓｖｐ，Ｓｗｐ，Ｓｕｎ，Ｓｖｎ，Ｓｗｎを生成するＰＷＭ信号生成部２２とを備える。【選択図】図４