CONTROLLER OF POWER CONVERTER

• Main Authors: SUMIYA KAZUMA, SHIMOSATO NOBORU, JO SHIN, SATO YUKIHIKO
• Format: Patent
• Language: English; Japanese
• Published: 13.12.2021
• 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

To allow prevention of a power source short circuit and a load release without switching an operation mode of a three-phase single-phase matrix converter (MC) between a current form commutation and a voltage form commutation.SOLUTION: The controller of the present invention is formed to repeat modes in the order from a first, mode MODE1 to a seventh mode, MODE7 and to control a matrix converter in a power converter. The controller executes, by a voltage form commutation, a switch from the first mode, MODE1 to the fourth mode, MODE2 and a switch from the fourth mode, MODE4 to the fifth mode, MODE5, and executes, by a current form commutation, a switch from the second mode, MODE2 to the third mode, MODE3, a switch from the third mode, MODE3 to the fourth mode, MODE4, a switch from the fifth mode, MODE5 to the sixth mode, MODE6, and a switch from the sixth mode, MODE6 to the seventh mode, MODE7.SELECTED DRAWING: Figure 15 【課題】電流形転流と電圧形転流の間で三相単相マトリックスコンバータ（ＭＣ）の動作モードを切り替えることなく、電源短絡と負荷開放の両方を防止可能とする。【解決手段】本発明による制御装置は、第１のモードＭＯＤＥ１〜第７のモードＭＯＤＥ７の順で繰り返し、電力変換装置内のマトリックスコンバータを制御するよう構成される。制御装置は、第１のモードＭＯＤＥ１から第４のモードＭＯＤＥ２への切り替え、及び、第４のモードＭＯＤＥ４から第５のモードＭＯＤＥ５への切り替えを電圧形転流により実行し、第２のモードＭＯＤＥ２から第３のモードＭＯＤＥ３への切り替え、第３のモードＭＯＤＥ３から第４のモードＭＯＤＥ４への切り替え、第５のモードＭＯＤＥ５から第６のモードＭＯＤＥ６への切り替え、及び、第６のモードＭＯＤＥ６から第７のモードＭＯＤＥ７への切り替えを電流形転流により実行する。【選択図】図１５