POWER CONVERSION APPARATUS, AIR CONDITIONER AND REFRIGERATION APPARATUS

• Main Authors: HANDA, Yuki, OGAWA, Takuro, HAYASHI, Nobuo
• Format: Patent
• Language: English
• Published: 11.07.2024
• 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

A power conversion apparatus includes:a converter configured to convert AC power that is input from an AC power supply via a first conductive line pair, into DC power;an inverter configured to convert the DC power that is output from the converter to a second conductive line pair, into the AC power; anda capacitor connected between conductive lines of the first conductive line pair or between conductive lines of the second conductive line pair, between one or more reactors and the inverter,wherein, letting a carrier frequency for driving the inverter be fC, a resonance frequency of an LC filter constituted by the one or more reactors and the capacitor be fLC, and a maximum value of an output frequency of the inverter be MAX(f0), MAX(f0) satisfies 6 times MAX(f0)<fLC<fC−3 times MAX(f0).