Closed-loop (closed-loop structure), also known as feedback control system, is to compare the measured value of the system output with the expected given value, resulting in a deviation signal, using this deviation signal for adjustment control, so that the output value as close to the expected value as possible.
Closed-loop features:
1、closed-loop control mode to prevent out-of-step.
2、improve the motor torque output.
3、automatically adjust the current output size according to the load, reduce the motor temperature rise.
4、adapt to various mechanical load state, parameter free adjustment.
5、the motor runs more smoothly, the vibration is less.
6、Dynamic acceleration and deceleration are greatly improved.
7、zero speed static ability without vibration.