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Switched reluctance driving system and control method

A switched reluctance drive and drive system technology, applied in motor control, motor generator control, AC motor control, etc., can solve problems such as torque ripple, large motor noise, vibration, etc., and achieve optimal performance and torque control accuracy High, low impact effect

Pending Publication Date: 2018-03-16
常州寻心电子科技有限公司
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Problems solved by technology

[0017] The technical problem to be solved by the present invention is: in order to solve the problems in the prior art that there are obvious torque ripples, resulting in vibration and large motor noise, the present invention provides a switched reluctance drive system and a control method to solve the above problems

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  • Switched reluctance driving system and control method

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Embodiment Construction

[0047] The present invention is described in further detail now in conjunction with accompanying drawing. These drawings are all simplified schematic diagrams, which only illustrate the basic structure of the present invention in a schematic manner, so they only show the configurations related to the present invention.

[0048] The switched reluctance drive system and control method of the present invention adopts a four-quadrant control strategy based on the two physical quantities torque and speed output by the motor, and realizes the closed-loop vector control of the current based on the accurate detection of the rotor position of the motor in each quadrant Control and closed-loop control of speed. The four-quadrant control strategy is adopted to realize the overall optimization of the switched reluctance drive system; based on accurate current and rotor position detection, the real closed-loop vector control is realized, so that the current, torque and speed control have h...

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Abstract

The present invention relates to a switched reluctance driving system and a control method. According to the switched reluctance driving system and the control method, true closed cycle vector controlis achieved based on accurate current and rotor position detection according to two physical quantities output by a motor, namely torque and speed, so that the current, torque and speed control precision is high. The current control precision is high, the generation of a large current peak is effectively suppressed, and the motor noise is also reduced; the torque control precision is high, the torque pulsation is greatly reduced, the impact on a power module is small, and the reliability in the running process is improved. The speed control precision is high, and the stability of overall control performances is ensured. The efficiency is high under frequent starting and overload states, heat emitted is less, and thus the performance of the switched reluctance driving system is optimized by combination with internal temperature and power regulation curves. For the reasons, the switched reluctance driving system can be widely used for the motor driving field.

Description

technical field [0001] The invention relates to the field of motor drive, in particular to a switched reluctance drive system and a control method. Background technique [0002] Switched Reluctance Drive (SRD) is the latest generation of stepless speed regulation system developed after frequency conversion speed regulation system and brushless DC motor speed regulation system. It is a combination of modern microelectronics technology, digital technology, power electronics technology , infrared photoelectric technology and modern electromagnetic theory, design and production technology as one of the high-tech integration of light, machinery and electricity. It has the advantages of both DC and AC speed control systems in the speed control system. Economically developed countries such as the United Kingdom and the United States started research on the speed control system of switched reluctance motors earlier, and have achieved remarkable results. The product power levels ran...

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Application Information

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IPC IPC(8): H02P25/098H02P21/22H02P21/36H02K29/08
CPCH02K29/08H02P21/22H02P21/36H02P25/0805H02P25/098H02P2205/05H02P2205/07H02P2205/01
Inventor 刘杰石晶合蔡一
Owner 常州寻心电子科技有限公司
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