POWER CONVERTER CONTROL DEVICE

• Main Authors: SHIMOSATO NOBORU, SHIGEUCHI KOJI, JO SHIN, SATO YUKIHIKO
• Format: Patent
• Language: English; Japanese
• Published: 09.01.2020
• 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; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER; CONTROL OR REGULATION THEREOF; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUTPOWER; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; ELECTRICITY; GENERATION; SYSTEMS FOR STORING ELECTRIC ENERGY

To suppress reduction of power factor that can occur when a three-phase single-phase matrix converter (MC) type DAB bidirectional insulated AC/DC converter is operated over a wide voltage range.SOLUTION: In a control device 4 according to the present invention is a power converter control device including a transformer 20, an AC/DC converter 30, a matrix converter 10, and a reactor L, the matrix converter 10 is configured to be controlled periodically in the first cycle so that one of a mode in which the bidirectional switch elements Sand Sare simultaneously turned on, a mode in which the bidirectional switch elements Sand Sare simultaneously turned on, and a mode in which the bidirectional switch elements Sand Sare simultaneously turned on is executed at least once in each cycle.SELECTED DRAWING: Figure 1 【課題】三相単相マトリックスコンバータ（ＭＣ）ＭＣ式ＤＡＢ型双方向絶縁形ＡＣ／ＤＣコンバータを広い電圧範囲で運転する際に発生し得る力率の低下を抑制する。【解決手段】本発明による制御装置４は、トランス２０と、ＡＣ／ＤＣコンバータ３０と、マトリックスコンバータ１０と、リアクトルＬと、を有する電力変換装置１の制御装置であって、双方向スイッチ素子Ｓｕｐ，Ｓｕｎが同時にオンとなるモード、双方向スイッチ素子Ｓｖｐ，Ｓｖｎが同時にオンとなるモード、及び、双方向スイッチ素子Ｓｗｐ，Ｓｗｎが同時にオンとなるモードのいずれか１つを各周期に１回以上実行するよう、マトリックスコンバータ１０を第１の周期で周期的に制御するよう構成される。【選択図】図１