公开(公告)号：US20230006582A1

公开(公告)日：2023-01-05

申请号：US17629243

申请日：2021-04-20

Applicant: SOUTHEAST UNIVERSITY

Inventor： Zheng WANG ,  Minrui GU

IPC: H02P21/00 ,  H02K11/33 ,  H02P21/18 ,  H02P25/022

Abstract: The present invention discloses a control method of a dual three-phase permanent magnet synchronous motor by alternately performing sampling and control procedures, which belongs to the field of power generation, power transformation or power distribution technologies. Sampling instants, vector loading instants, and reference value tracking instants of two sets of windings alternate in two halves of a sampling period, and the equivalent sampling frequency of the motor drive system is doubled and the digital delay and the predictive horizon are halved without changing the sampling frequency of a single set of three-phase windings. In addition, by means of a two-layer MPC strategy, a deficient-rank problem is settled that the controlled dimensionality of the system is reduced to two dimensions but the motor control objective is still four dimensions caused by the method with controlling a dual three-phase permanent magnet synchronous motor by alternately performing sampling and control procedures. According to the control method of a dual three-phase permanent magnet synchronous motor by alternately performing sampling and control procedures provided in the present invention, the steady-state and dynamic control performance of a motor drive system for a dual three-phase permanent magnet synchronous motor is effectively improved, and computation burden of the control algorithm is reduced.