Power conversion apparatus

• Main Authors: Uchihara Masafumi, Sasaki Kazuyuki
• Format: Patent
• Language: English
• Published: 11.07.2017
• 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

Phase differences between primary-side series-connected first and second arms and secondary-side series-connected fifth and sixth arms and between primary-side series-connected third and fourth arms and secondary-side series-connected seventh and eighth arms are controlled for power being transmitted from the secondary side to the primary side. Turn-off of the fifth arm is corrected to cause an integrating result of a secondary coil current for an interval delayed by a current sensor response delay from an interval between turn-off of the first arm and turn-on of the seventh arm to approach zero, or turn-off of the seventh arm is corrected to cause an integrating result of the secondary coil current for an interval delayed by the response delay from an interval between turn-off of the third arm and turn-on of the fifth arm to approach zero.