Driving control system and control method thereof based on dual-power supply open-type winding permanent magnet synchronous motor

A permanent magnet synchronous motor, open winding technology, applied in current controllers, emergency power supply arrangements, electrical components, etc., can solve the problems of inability to apply dual power supply drive systems at the same time, large switching loss of inverters, etc.

Inactive Publication Date: 2016-10-26
JILIN UNIV
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Problems solved by technology

However, the current research on dual-inverter open-winding motors mainly focuses on the zero-sequence current suppression, fault-tolerant control, and space vector modulation of the common DC bus, or proposes control for single dual-power configurations such as ...

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  • Driving control system and control method thereof based on dual-power supply open-type winding permanent magnet synchronous motor
  • Driving control system and control method thereof based on dual-power supply open-type winding permanent magnet synchronous motor
  • Driving control system and control method thereof based on dual-power supply open-type winding permanent magnet synchronous motor

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specific Embodiment approach

[0153] In order to further illustrate the technical solution of the present invention, in conjunction with the accompanying drawings, the specific implementation of the present invention is as follows:

[0154] Such as figure 1 As shown, the present invention discloses a drive control system based on a dual-power open-winding permanent magnet synchronous motor. The drive control system is composed of:

[0155] After the DC power supply DC1 is connected in series with the relay switch KM1, its two ends are connected to the DC bus of the three-phase inverter INV1 to supply power to the three-phase inverter INV1; the DC power supply DC2 is connected in series with the relay switch KM2, and both ends are connected to the three-phase inverter The DC bus of INV2 supplies power to the three-phase inverter INV2. The start ends of the three-phase windings of the open-winding permanent magnet synchronous motor 8 are A, B, and C respectively, which are respectively connected to the three-pha...

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Abstract

The invention discloses a driving control system and a control method thereof based on a dual-power supply open-type winding permanent magnet synchronous motor. An open-type winding permanent magnet synchronous motor structure with dual power supplies and dual inverters for power supply is adopted, an electronic switch group is added, a delta winding connection is realized, the structure can be used for a dual-power supply structure of different power types, and voltage of two power supplies can be allowed to be different and change in real time. through torque saturation determination and rotation speed threshold control, automatic switching is realized among a star winding mode, a delta winding mode and a dual-inverter common control mode, and switching loss is reduced. A dual-inverter current hysteresis control algorithm in a low switching frequency mode and a large power differential mode is provided for the dual-inverter common control mode, and effects of realizing multi-level control and providing different dual-power supply energy allocation can be realized.

Description

Technical field [0001] The invention belongs to the technical field of motor control, and in particular relates to a drive control system and a control method of a dual-power open-winding permanent magnet synchronous motor based on a dual power supply, which is suitable for electric vehicles. Background technique [0002] With the increasing requirements of energy conservation and environmental protection in today's society, the technical field of electric vehicles with electric motors as the power source has been booming in recent years. Permanent magnet synchronous motors have the advantages of high power density and simple control, and have become the common power source of electric vehicles. Limited by the energy density and durability of current power batteries, pure electric vehicles using power batteries as a single energy source have the disadvantages of low driving range, high cost, and short life, so they are equipped with internal combustion engine range extender and po...

Claims

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Application Information

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IPC IPC(8): H02P6/17H02P6/28H02J9/06
CPCH02J9/061
Inventor 贾一帆许楠初亮刘宏伟郭建华杨志华王严伟李育宽
Owner JILIN UNIV
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