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Permanent magnet synchronous motor efficiency optimization control method based on improved golden section method

A technology of permanent magnet synchronous motor and golden section method, which is applied in motor generator control, AC motor control, electronic commutation motor control, etc., and can solve problems such as deviation of search results

Inactive Publication Date: 2018-11-23
HUNAN MECHANICAL & ELECTRICAL POLYTECHNIC
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Problems solved by technology

[0010] The commonly used online search methods now only consider the dominance of the upper elements on the lower elements, assuming that the indicators in the same layer are independent of each other, but in many practical decision-making problems, there are often dependencies or feedbacks between the index elements in a certain layer. relationship, and the lower elements also have a dominant effect on the upper elements, if only the independence assumption is used, the search results will be biased

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  • Permanent magnet synchronous motor efficiency optimization control method based on improved golden section method
  • Permanent magnet synchronous motor efficiency optimization control method based on improved golden section method
  • Permanent magnet synchronous motor efficiency optimization control method based on improved golden section method

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Embodiment Construction

[0096] In order to make the object, technical solution and advantages of the present invention more clear, the present invention will be further described in detail below in conjunction with the examples. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0097] The application principle of the present invention will be further described below in conjunction with the accompanying drawings.

[0098] Such as figure 1 As shown, the permanent magnet synchronous motor efficiency optimization control method based on the improved golden section method includes the following steps:

[0099] S101: Analyze and evaluate the loss of the permanent magnet synchronous motor;

[0100] S102: Construct a loss model of the permanent magnet synchronous motor;

[0101] S103: Calculate the current value i based on the loss model of the permanent magnet synchronous motor d0 ;

[0102] S104: ...

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Abstract

The invention belongs to the technical field of motor control, and discloses a permanent magnet synchronous motor efficiency optimization control method based on an improved golden section method. Themethod includes the following steps: analyzing and evaluating the loss of a permanent magnet synchronous motor; constructing a loss model of the permanent magnet synchronous motor; calculating a current value id0 based on the loss model of the permanent magnet synchronous motor; online searching a system optimal point by using an improved golden section method; and optimally distributing d-axis and q-axis reference currents for the motor vector control, and calculating ids and iqs of d and q axes with the optimal efficiency. According to the scheme of the invention, the efficiency of the permanent magnet synchronous motor is optimized by using the improved golden section method, that is, the motor loss is reduced to prevent the excessive temperature, the operating performance limit of thesystem can be maximized, and the overall operating performance of the system can be improved.

Description

technical field [0001] The invention belongs to the technical field of motor control, and in particular relates to an efficiency optimization control method of a permanent magnet synchronous motor based on an improved golden section method. Background technique [0002] With the global energy crisis and environmental pollution becoming increasingly prominent, new energy vehicles have become the future development direction of the international automobile industry, and the clarion call for its accelerated development has already sounded. In recent years, with the continuous advancement of power battery technology and electric drive technology, electric vehicles have become the commanding heights and growth points of new energy vehicles in the future, and are the common strategic choice of major countries and automobile manufacturers. It can be firmly believed that in the mileage towards a green future, electric vehicles are bound to gain broader development prospects. [000...

Claims

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Application Information

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IPC IPC(8): H02P21/00H02P6/34
CPCH02P6/34H02P21/02H02P21/50H02P25/024
Inventor 刘建林
Owner HUNAN MECHANICAL & ELECTRICAL POLYTECHNIC
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