By simulation, the results show that this method can enhance the sensibility and operating speed of pickup unit, improve the integral performance of the FBP system.

• 通过仿真验证了利用小波原理构成的微机保护启动元件，可以提高启动元件的灵敏度及其动作速度，从而改善快速后备保护系统的整体性能。