resonant pole srd soft switching power circuit
A power circuit and soft switching technology, applied in the direction of electrical components, AC motor control, control system, etc., can solve the problems of high cost, high power consumption, unsatisfactory debugging efficiency, etc., achieve low power consumption, improve reliability, and guarantee Reliably Formed Effects
Inactive Publication Date: 2018-11-27
TAIYUAN UNIVERSITY OF SCIENCE AND TECHNOLOGY
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Problems solved by technology
[0005] In order to solve the problems of large power consumption, unsatisfactory debugging efficiency and high cost in the existing SRD soft switching power circuit, the present invention provides a new resonant pole SRD soft switching power circuit
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[0024] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.
[0025] as attached figure 1 As shown, the resonant pole SRD soft switching power circuit includes a DC power supply Ud, an auxiliary resonant pole circuit 2 and an asymmetrical conversion circuit 3, and the DC power supply Ud is connected to the auxiliary resonant pole circuit 2 and then connected to the asymmetrical conversion circuit 3 to connect to the SR motor 5 ;
[0026] The auxiliary resonant pole circuit 2 is: one end of the resonant inductance Lr is connected to the positive pole of the DC power supply Ud, and the other end of the resonant inductance Lr is respectively connected to the A-...
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The invention discloses an efficient resonance electrode SRD (Switched Reluctance motor Drive) soft switch power circuit, which solves the problems of high power consumption and non-ideal debugging efficiency of an existing SRD soft switch power circuit. The efficient resonance electrode SRD soft switch power circuit comprises a DC power source Ud, an auxiliary resonance electrode circuit and an asymmetric conversion circuit; the DC power source Ud and the asymmetric conversion circuit are connected to an SR motor after the DC power source Ud is connected with the auxiliary resonance electrode circuit. The auxiliary resonance electrode circuit has such a structure that one end of a resonant inductor Lr is connected with the positive electrode of the DC power source Ud, and the other end of the resonant inductor Lr is respectively connected with an A-phase auxiliary circuit, a B-phase auxiliary circuit and a C-phase auxiliary circuit. The asymmetric conversion circuit comprises an A-phase asymmetric conversion circuit, a B-phase asymmetric conversion circuit and a C-phase asymmetric conversion circuit. The efficient resonance electrode SRD soft switch power circuit reduces loss of an auxiliary switch at an SRD power circuit and improves work efficiency and reliability of a control circuit.
Description
technical field [0001] The invention belongs to the technical field of power electronics and relates to a switched reluctance motor speed regulation system SRD, in particular to a resonant pole SRD soft switching power circuit. Background technique [0002] Switched Reluctance motor Drive (SRD for short) is mainly composed of four parts: Switched Reluctance Motor (SRM or SR motor for short), power converter, controller and detector. A new type of motor drive system developed rapidly. SRD has simple structure, wide range of speed regulation, high speed regulation efficiency and good system reliability. SRD products have been widely used in various fields such as motor drive, household appliances, general industry, aviation industry and servo field. [0003] The power circuit of the SRD power converter often adopts the continuous on-off working mode of the switching components. Increasing the switching frequency can expand the speed regulation range of the system, and at the ...
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IPC IPC(8): H02P25/092
Inventor 杨晋岭张英俊潘理虎刘立群郭勇义
Owner TAIYUAN UNIVERSITY OF SCIENCE AND TECHNOLOGY