Patent ID: 11909281
Assignee: JIANGSU UNIVERSITY
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H | IPC H

Claim 7:
8. A driving control method of a stator-based permanent magnet field-enhanced hybrid-excitation motor capable of operating under multiple operating conditions, comprising: forming a power converter of the motor by four H-bridges, wherein incoming and outgoing ends of an excitation winding are each connected with a center point of one H-bridge arm, and incoming and outgoing ends of a three-phase winding are each connected with the center point of one H-bridge arm to form an open winding structure; the H-bridge of the excitation winding is connected in series with a bus of the open winding structure of the three-phase winding; every three bridge arms of the open winding structure form a group; and a switch transistor is arranged between each two groups; and
implementing operation under multiple working conditions, wherein when the motor operates as a permanent magnet synchronous motor, lower tubes of a group of three bridge arms of the open winding structure are communicated, such that the outgoing ends of the three-phase winding are connected together, and the switch transistor is opened; and when the motor operates as a switched reluctance motor, the switch transistor is closed, wherein an upper tube of the bridge arm connected with the incoming end of each phase winding and a lower tube of the bridge arm connected with the outgoing end of each phase winding form a power converter of the switched reluctance motor, and an upper tube of the bridge arm connected with the outgoing end of each phase winding and a lower tube of the bridge arm connected with the incoming end of each phase winding only use diodes connected in subtractive series thereof for freewheeling.