Motor low starting current control method

The invention relates to the technical field of motor control, in particular to a motor low starting current control method, which can realize accurate control of switching current and ensure switching from frequency conversion to power frequency, and comprises the following steps of: (1) transmitting a signal of a power grid power supply to a peripheral module of an MCU (Microprogrammed Control Unit) through a detection circuit; (2) the peripheral module of the MCU converts the signal into data and inputs the data into a power grid power source observer module of MCU software, and the observer module calculates the voltage amplitude, frequency and phase angle of the current power grid power source; (3) the voltage amplitude and frequency of the power grid power supply are transmitted to a standard frequency converter module instruction module of MCU software to complete the acceleration starting action, and when a frequency converter driving motor completes starting and the frequency reaches the frequency of