BIPOLAR POWER SUPPLY SYSTEM AND CONTROL METHOD
Patent Information
- Authority / Receiving Office
- DE · DE
- Patent Type
- Patents
- Current Assignee / Owner
- HUAWEI DIGITAL POWER TECH CO LTD
- Filing Date
- 2021-03-30
- Publication Date
- 2026-05-06
AI Technical Summary
In bipolar power supply systems, uncontrolled neutral wire current can exceed cable specifications, affecting system reliability and reducing energy yield, especially in scenarios like wind and photovoltaic power systems where positive and negative voltage conversion apparatuses have different maximum output powers.
A controller adjusts the output voltages of the positive and negative voltage conversion apparatuses to maintain unchanged output power while controlling the neutral wire current within a preset range, using control units to increase or decrease voltage differences as needed to manage the neutral wire current effectively.
This approach ensures maximum output power and improved energy yield without additional economic loss by maintaining power generation efficiency and preventing neutral wire current from exceeding cable specifications.