variable structure motor system
A technology of variable structure and topology structure, applied in control systems, control generators, vector control systems, etc., can solve the problems of low reliability, low system power density and efficiency, large mechanical wear, etc., to improve the use efficiency and Power density, online fault handling, weight and volume reduction
Active Publication Date: 2018-05-22
BEIJING RES INST OF PRECISE MECHATRONICS CONTROLS
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Problems solved by technology
However, the disadvantages of this solution are also very obvious, such as large space occupation and heavy weight, low system power density and efficiency, large mechanical vibration and noise, and large mechanical wear.
In addition, in the occasions where the performance requirements are not high, such as fans and water pumps, although the pole-changing method of the AC motor winding can provide a certain range of speed adjustment, the speed adjustment range is small, the performance is poor, and the reliability is not high, and it cannot adapt to high performance. Applications with wide speed regulation, multiple working conditions and high reliability
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[0043] Such as figure 1 As shown, the variable structure motor system proposed by the present invention is described with the main propulsion control of the ship. In the present invention, the variable structure motor system includes a main controller 1, a driver 2, a current acquisition module and an open-winding motor 3, wherein the main controller 1 receives control instructions from the host computer and feedback information from the open-winding motor 3 , and generate power drive and drive topology change structure instructions, the driver 2 converts the winding topology and drive topology of the open winding motor 3 algorithmically or electrically according to the system change structure instructions, and realizes multiple windings It can be used in series or in parallel to meet the requirements of multiple working conditions such as normal, fault, overload, and overspeed operation of the motor system.
[0044] Specifically, the open winding motor 3 includes 2N windings...
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The invention relates to a variable structure motor system, which includes a main controller, a driver and an open winding motor. The main controller receives control instructions and feedback information from the open winding motor, and generates power drive and system variable structure instructions. The variable structure instruction converts the winding topology and driving topology of the open winding motor algorithmically or electrically, and realizes the use of multiple windings in series or in parallel, so as to meet the requirements of the normal, faulty and overloaded operation of the motor system. Situation needs. Compared with the multi-motor + clutch mechanical variable structure, it can effectively reduce the weight and volume of the electromechanical energy conversion system, and effectively improve the power density, reliability, safety and efficiency. Eliminate mechanical vibration and noise.
Description
technical field [0001] The invention relates to a variable structure motor system, which belongs to the field of motors. Background technique [0002] In order to improve the reliability, safety, efficiency and other performance indicators of the system, there are generally many restrictions on the working conditions of the system. Extreme conditions such as overload and overspeed limit the application range of the system. Performance indicators such as reliability, safety, and high efficiency and high-performance multi-condition operation are a pair of contradictions often encountered in work. In order to resolve this contradiction, the system can not only operate under multiple conditions, but also have a high Reliability, safety and efficiency usually adopt a higher safety factor and design margin, and even the output mode of multiple mechanisms in series or in parallel. For example, in the field of motors and their systems, the mechanical variable structure method of m...
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IPC IPC(8): H02P21/22
Inventor 黄玉平司宾强
Owner BEIJING RES INST OF PRECISE MECHATRONICS CONTROLS