一种储能系统及其CT校正计算方法
By calculating the ratio of inverter power to grid power, the system automatically identifies and corrects problems such as incorrect or reversed CT connection in the energy storage system, achieving accurate calculation of grid power and simplifying the CT wiring correction process.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- SHENZHEN POWEROAK NEWENER CO LTD
- Filing Date
- 2025-04-29
- Publication Date
- 2026-07-17
AI Technical Summary
In existing energy storage systems, incorrect CT (current transformer) connection in the electricity meter leads to data acquisition errors. Existing detection methods require manual adjustment or additional equipment, making it difficult to achieve fast and accurate CT wiring correction.
By controlling the output power of each phase of the inverter, the ratio coefficient of inverter power to grid power is calculated, the CT connection status is identified and the grid power is corrected. Formulas (1) to (7) are used for calculation, and the CT is identified as incorrectly connected or reversed and automatically corrected.
It can identify and correct CT wiring errors without additional equipment or manual adjustments, enabling accurate calculation of grid power and simplifying the CT wiring correction process.
Smart Images
Figure CN120064741B_ABST