公开(公告)号：US20240204535A1

公开(公告)日：2024-06-20

申请号：US18592786

申请日：2024-03-01

Applicant: Huawei Digital Power Technologies Co., Ltd.

Inventor： Mugui Zheng ,  Wanxiang Ye ,  Wenxue Wu

IPC: H02J3/46 ,  H02J3/00 ,  H02J3/32 ,  H02J3/38

CPC classification number: H02J3/46 ,  H02J3/0012 ,  H02J3/32 ,  H02J3/381 ,  H02J2203/10 ,  H02J2300/10 ,  H02J2300/26 ,  H02J2300/28 ,  H02J2300/40

Abstract: A power supply system includes a mains system, a renewable energy conversion unit, a fossil energy conversion unit, and a control unit. Because electric energy converted from renewable energy is cheaper than electric energy converted from fossil energy, the renewable energy conversion unit is added to the power supply system. When the mains system is abnormal, the control unit preferentially enables the renewable energy conversion unit to provide electric energy. If electric energy provided by the mains system and the renewable energy conversion unit still cannot meet a power supply requirement, the control unit starts the fossil energy conversion unit to provide electric energy. In this way, electricity consumption costs of a user are reduced as much as possible, and commercial competitiveness of the power supply system is improved.