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Modeling method of hybrid logic dynamic model-based brushless direct-current motor driving system

A hybrid logic dynamic, brushed DC motor technology, applied in the direction of AC motor control, control system, AC power input conversion to DC power output, etc., can solve the problems of important information loss, no description of condition changes, unfavorable power tube analysis, etc. Achieve the effect of avoiding loss, improving real-time and reliability

Inactive Publication Date: 2017-07-21
WUHAN INSTITUTE OF TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Benefits of technology

This patented technology helps predict failures or other issues with an electric machine by analyzing its operating modes based upon different states during normal use. It also uses advanced mathematical techniques like partial differential equations (PDE) to accurately determine any potential problems before they occur. By doing this, technical effectings include improved diagnostic accuracy and timely failure detection capabilities.

Problems solved by technology

Technological Problem addressed in this patents relating to improving the accuracy and efficiency of analyzing power electronic devices (such as transistors) during their operation. Current methods involve approximations that may result in incorrect results due to factors like imperfections in manufacturing processes.

Method used

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  • Modeling method of hybrid logic dynamic model-based brushless direct-current motor driving system
  • Modeling method of hybrid logic dynamic model-based brushless direct-current motor driving system
  • Modeling method of hybrid logic dynamic model-based brushless direct-current motor driving system

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Embodiment Construction

[0019] The invention will be further described below with reference to the accompanying drawings and in combination with specific embodiments, so that those skilled in the art can implement it by referring to the description, and the protection scope of the present invention is not limited to the specific embodiments.

[0020] The technical solution adopted in the present invention is a modeling method for a brushless DC motor drive system based on a hybrid logic dynamic model, the brushless DC motor drive system includes a power supply, a brushless DC motor, a sensor, and a controller, and the brushless DC motor drive system includes a power supply, a brushless DC motor, a sensor, and a controller. The DC motor is composed of a constant voltage source, a motor body and a three-phase full-bridge inverter. The motor body includes three-phase symmetrical star windings and three opposite electromotive forces. The three-phase full-bridge inverter consists of six power Three half-br...

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Abstract

The invention relates to a modeling method of a hybrid logic dynamic model-based brushless direct-current motor driving system. According to the method, the operating modes of an inverter and a motor body are analyzed; the discrete control transition of the system and the continuous state transition of the system are considered; and therefore, the hybrid logic dynamic model of the brushless direct-current motor driving system can be obtained. With the method adopted, the loss of the fault information of the motor driving system can be avoided, and the real-time performance and reliability of fault diagnosis can be improved.

Description

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Claims

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Application Information

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Owner WUHAN INSTITUTE OF TECHNOLOGY
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