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Circular flux trajectory control device and method based on regular dodecagon

A regular dodecagon and trajectory control technology, applied in the field of electric transmission, can solve the problem of high cost

Active Publication Date: 2020-05-05
SHANGHAI ZHONGKE SHENJIANG ELECTRIC VEHICLE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In the above-mentioned flux trajectory control process, the stator current needs to be obtained, and the acquisition of the stator current needs to obtain at least two phase current values, requiring at least two current sensors, and the cost is high

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  • Circular flux trajectory control device and method based on regular dodecagon
  • Circular flux trajectory control device and method based on regular dodecagon
  • Circular flux trajectory control device and method based on regular dodecagon

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Embodiment Construction

[0050] figure 1 It is a schematic structural diagram of a circular flux trajectory control device based on a regular dodecagon provided by an embodiment of the present invention. Such as figure 1 As shown, the circular flux trajectory control device based on the regular dodecagon provided by the embodiment of the present invention includes: a vehicle-mounted power battery 1, an auxiliary power source 2, a main controller 3, a driving circuit 4, and a three-phase permanent magnet synchronous motor 5. , Power tube unit 6, wherein, the vehicle-mounted power battery 1 is divided into two parts in series, that is, the vehicle-mounted power battery 1 includes a first section and a second section, the negative electrode of the first section and the positive electrode of the second section Connected, the first section is connected in series with the second section, and the voltage of the first section and the second section is Ud; the power tube unit 6 includes a first switching tube VT...

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Abstract

The invention provides a circular flux trajectory control device and a circular flux trajectory control method based on a regular dodecagon. The circular flux trajectory control device comprises a vehicle-mounted power battery, an auxiliary power supply, a main controller, a driving circuit, a three-phase permanent magnet synchronous motor and a power tube unit, wherein the effect of controlling a flux trajectory of the three-phase permanent magnet synchronous motor is realized through controlling switching tubes of the power tube unit by means of the main controller. During the control process, the control of the flux trajectory of the three-phase permanent magnet synchronous motor is realized through controlling the switching tubes of the power tube unit directly, a current sensor does not need to be set, and the cost of controlling the flux trajectory of the three-phase permanent magnet synchronous motor is reduced. Meanwhile, the circular flux trajectory control device based on the regular dodecagon provided by the embodiment of the invention does not comprise any relays, and is low in cost.

Description

Technical field [0001] The present invention relates to electric transmission technology, in particular to a circular magnetic linkage track control device and method based on a regular dodecagon. Background technique [0002] With the growing awareness of environmental protection, electric vehicles with features such as zero emission, no pollution, and high energy utilization have become more and more popular among consumers. As the power source of electric vehicles, three-phase permanent magnet synchronous motors are one of the important parts of electric vehicles. [0003] At present, the three-phase windings of the three-phase permanent magnet synchronous motor are respectively connected to the power supply through two switch tubes. In the process of flux linkage trajectory control, the voltage space vector control method is adopted to control the flux linkage trajectory through vector coordinate transformation, current loop control, and output coordinate change. In this proc...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02P21/00H02P21/14H02P6/00
CPCH02P6/00H02P2207/05
Inventor 张陈斌孙江明林利肖欣徐冲金黎杰高翔
Owner SHANGHAI ZHONGKE SHENJIANG ELECTRIC VEHICLE