CHARGE AND DISCHARGE POWER BALANCE DISTRIBUTION CONTROL METHOD FOR PARALLEL SYSTEM FOR HYBRID ENERGY STORAGE INVERTERS

WIPO Patent Application WO/2023/231079

A1

The present invention belongs to the technical field of hybrid energy storage inverter control. Disclosed is a charge and discharge power balance distribution control method for a parallel system for hybrid energy storage inverters. The method comprises: configuring one machine in a system as a master machine and the other machines as slave machines; acquiring the power of a grid connection port of a parallel system, a mains voltage, and output currents of inverters, and calculating output power of the inverters; and setting a power limit for the grid connection port, obtaining on-off control signals for switch tubes S2 and S3 by means of a control loop (1), a control loop (2), a control loop (3) and a control loop (4), and achieving the goal of controlling the charge and discharge current of a battery by controlling the turning on and off of the switch tubes S2 and S3. The present invention can realize the optimal use of energy output by photovoltaic modules in a parallel system, thereby avoiding energy waste.

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JP5597208	A control device of a rechargeable battery, and the control method of a rechargeable battery

LIU CHAOHOU (CN)
AN TIANHONG (CN)
SHI XINMIAO (CN)
GUAN HAICHAO (CN)
WEI QIKANG (CN)

PCT/CN2022/098332

December 07, 2023

June 13, 2022

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SOLAX POWER NETWORK TECH ZHEJIANG CO LTD (CN)

H02J7/00

CN114039371A	2022-02-11
CN112415402A	2021-02-26
CN111756046A	2020-10-09
CN113224743A	2021-08-06
JP2000012103A	2000-01-14
CN112600249A	2021-04-02
CN111293720A	2020-06-16

HANGZHOU ZHEKE PATENT AGENCY (GENERAL PARTNERSHIP) (CN)

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