Title:
PHOTOVOLTAIC POWER SUPPLY SYSTEM AND VOLTAGE CONTROL METHOD THEREFOR, CONTROLLER, AND STORAGE MEDIUM
Document Type and Number:
WIPO Patent Application WO/2024/060397
Kind Code:
A1
Abstract:
A photovoltaic power supply system and a voltage control method therefor, a controller, and a storage medium. The photovoltaic power supply system comprises an inverter (400) and at least one photovoltaic input device (200); each photovoltaic input device (200) comprises a photovoltaic cell (210) and a direct-current converter (220); the photovoltaic cells (210) are connected to a power supply grid by means of the direct-current converters (220), a bus (300), and the inverter (400) in sequence. The voltage control method comprises: acquiring a grid voltage of a power supply grid and a target power tracking voltage of all photovoltaic cells (S100); determining a target given voltage of a bus according to the grid voltage and the target power tracking voltage (S200); and controlling the working state of direct-current converters according to the target given voltage (S300). The system can reduce converter losses, thereby improving system efficiency, and the system can operate in a required steady state under different conditions.
Inventors:
ZENG XIANJIE (CN)
HUANG ZHAOBIN (CN)
JIANG HAIHAO (CN)
QIU YU (CN)
HUANG ZHAOBIN (CN)
JIANG HAIHAO (CN)
QIU YU (CN)
Application Number:
PCT/CN2022/134087
Publication Date:
March 28, 2024
Filing Date:
November 24, 2022
Export Citation:
Assignee:
GD MIDEA AIR CONDITIONING EQUIPMENT CO LTD (CN)
International Classes:
H02J3/38
Foreign References:
| CN101841160A | 2010-09-22 | |||
| CN112994055A | 2021-06-18 | |||
| CN103683315A | 2014-03-26 | |||
| US20130077366A1 | 2013-03-28 |
Attorney, Agent or Firm:
JIAQUAN IP LAW (CN)
Download PDF: