Two-level direct torque control method capable of eliminating zero-vector common-mode voltage spike

The invention relates to a two-level direct torque control method capable of eliminating a zero vector common-mode voltage spike, and the method comprises the steps: building a voltage vector correction table of two-level direct torque control according to a torque, a gradient value of an output value of a flux linkage hysteresis comparator, and a gradient value of a motor stator flux linkage sector number; a voltage vector correction value is obtained by querying a voltage vector correction table, correction is performed by using the correction value in the process of querying a two-level direct torque control traditional switch table, and the corrected voltage vector can ensure that no zero vector is generated in the commutation process. Compared with traditional two-level direct torque control, common-mode voltage spikes can be effectively eliminated; meanwhile, compared with other methods for eliminating common-mode voltage spikes, a simple control structure and good control performance of traditional dir