POWER CONVERSION SYSTEM

WIPO Patent Application WO/2020/240742

A1

This power conversion system is provided with a power conversion circuit, a power conversion control circuit equipped with a charging control mode, and a command value generation unit. The charging control mode is a mode for controlling the output voltage of the power conversion circuit so that an interconnection inductance voltage is applied to an interconnection inductance, said interconnection inductance voltage being determined by a power supply voltage vector of an AC power supply and a voltage command value vector having a phase delayed from the power supply voltage vector and having a magnitude and the phase which are based on a command value.　The command value generation unit generates a first command value for the operation of the charging control mode of when the voltage of a storage battery does not become less than an overdischarge threshold value. The command value generation unit generates a second command value for the operation of the charging control mode of when the voltage of the storage battery has become less than the overdischarge threshold value. The first command value causes the power conversion circuit to output an output voltage in accordance with a first voltage command value vector having a first magnitude and a first delay phase. The second command value causes the power conversion circuit to output an output voltage in accordance with a second voltage command value vector having a second magnitude less than the first magnitude.

TSURUMA YOSHINORI (JP)

PCT/JP2019/021378

December 03, 2020

May 29, 2019

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TOSHIBA MITSUBISHI ELEC IND (JP)

H02J7/10; H02M7/48; H02M7/797

WO2018105323A1

2018-06-14

JP2009171652A	2009-07-30
JPS57193977A	1982-11-29

TAKADA, Mamoru et al. (JP)

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