Traction motor control system, control method and computer readable storage medium

A traction motor and control system technology, applied in control systems, motor control, vector control systems, etc., can solve problems such as unsatisfactory system control effects, and achieve the effect of solving unsatisfactory system control effects and simple and reliable structure

Active Publication Date: 2020-10-02
江苏经纬轨道交通设备有限公司
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  • Abstract
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  • Claims
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Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a new traction motor control system, control method and computer-readable storage medium for the above-mentioned problem of unsatisfactory system control effect caused by the high-speed field-weakening control of the AC-DC axis current coupling

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  • Traction motor control system, control method and computer readable storage medium
  • Traction motor control system, control method and computer readable storage medium
  • Traction motor control system, control method and computer readable storage medium

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Embodiment Construction

[0041] 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.

[0042] Such as figure 1 As shown, it is a schematic diagram of an embodiment of the traction motor control system of the present invention. The traction motor control system is suitable for high-speed field-weakening control of the motor. The motor control system includes a voltage amplitude control unit 1, a voltage phase angle control unit 2, and a current sampling unit. 3. Position feedback unit 4, pulse wave adjustment unit 5 and three-phase inverter unit 6, wherein:

[0043] The current sampling unit 3 is used to sample the three-phase alternating current ia, ib, ic output by the three-phase ...

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Abstract

The invention provides a traction motor control system, a control method and a computer-readable storage medium. The control system comprises a voltage amplitude control unit, a voltage phase angle control unit, a current sampling unit, a position feedback unit, a pulse wave adjusting unit and a three-phase inverter unit. Wherein the current sampling unit is used for sampling the three-phase alternating current output by the three-phase inverter unit; The position feedback unit is used for obtaining the actual electric angular velocity of the motor; The voltage magnitude control unit, configured to obtain an output voltage magnitude; The voltage phase angle control unit is used for obtaining an output voltage phase angle; The pulse wave adjusting unit generates a pulse width modulated signal; The three-phase inverter unit outputs three-phase alternating current to the traction motor. As that voltage amplitude control and the voltage phase angle control are simple and reliable in structure, the direct voltage of the motor can be fully utilized, and the problem that the alternating-direct-axis current coupling of the high-speed field weaken control of the motor causes the undesirablecontrol effect of the system can be solved.

Description

technical field [0001] The present invention relates to the field of motor control, and more specifically, relates to a traction motor control system, a control method and a computer-readable storage medium. Background technique [0002] Rail transit has many advantages such as large carrying capacity, fast speed, safe operation, energy saving, and not being affected by ground transportation. It has made important contributions to optimizing urban spatial structure and alleviating existing urban public transportation congestion. After years of development, the traction motor control system has gradually entered the market, and its domestic use range is expanding. However, higher requirements are put forward in terms of safety, reliability, and stability. Among them, the control performance of the motor in the high-speed field weakening area is One of the important performance and safety factors of the vehicle system. [0003] The traditional motor field weakening control al...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02P21/22H02P27/08
CPCH02P21/0089H02P21/22H02P27/08H02P2205/01
Inventor 陈银刘巍
Owner 江苏经纬轨道交通设备有限公司
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