一种适用于新能源场站的TCR型备自投方法
By using the TCR-type automatic transfer switch, the grid connection point status can be quickly determined by impedance and current detection. Combined with the TCR-type switch and the backup line switching circuit, the problem of speed and reliability of the new energy system's reconnection to the grid is solved, realizing rapid switching and control of closing current, thereby improving power supply reliability and the utilization rate of new energy.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- STATE GRID NINGXIA ELECTRIC POWER CO
- Filing Date
- 2022-11-15
- Publication Date
- 2026-07-17
AI Technical Summary
Traditional automatic transfer switch schemes cannot quickly and effectively reconnect the renewable energy system to the grid after renewable energy is connected to the grid, resulting in load loss and damage to user interests. Furthermore, the randomness and volatility of renewable energy increases the difficulty and time required for reconnection.
The TCR-type automatic transfer method is adopted. By obtaining the impedance change and current effective value at the grid connection point, it is determined whether to disconnect the equipment or load. The TCR-type switch and the standby line switching circuit are used to achieve rapid switching, reduce the impact of closing current, and realize the rapid reconnection of the new energy system to the grid.
This enabled the rapid reconnection of the new energy system to the grid, reduced the current surge caused by switching on, avoided a long equipment disconnection process, and improved the reliability of power supply and the utilization rate of new energy sources.
Smart Images
Figure CN115986903B_ABST