Method, device, system, processor and terminal for controlling brushless doubly-fed motor
A doubly-fed motor and control winding technology, which is applied in the control system, starting device, power factor control, etc., can solve the problem that the brushless doubly-fed motor cannot be effectively controlled
Active Publication Date: 2020-03-24
SIEMENS FACTORY AUTOMATION ENG
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[0004] The embodiment of the present invention provides a method, device, system, processor and terminal for controlling a brushless doubly-fed motor, so as to at least solve the problem that the brushless doubly-fed motor cannot be effectively controlled in the prior art
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[0084] In order to make those skilled in the art better understand the solutions of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only Embodiments are part of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.
[0085] It should be noted that the terms "first", "second" and the like in the description and claims of the present invention and the above drawings are used to distinguish similar objects, and are not necessarily used to describe a specific sequence or sequence. It is to be understood that the data so used may be interchanged under appropriate ...
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The invention relates to a method, apparatus, system for controlling a brushless doubly-fed motor, a processor, and a terminal. The method comprises: on the basis of voltage values corresponding to aplurality of frequency values, a frequency converter is controlled to set a voltage / frequency curve (S102) of a control winding of a brushless doubly-fed motor, wherein the frequency converter is electrically connected to the control winding; a power factor (S104) at one side of a power winding in operation of the brushless doubly-fed motor based on the voltage / frequency curve is obtained; and onthe basis of the obtained power factor, the output voltage of the frequency converter to the control winding is adjusted by using the voltage / frequency curve of the control winding as an initial value, so that the power factor is kept to be in a predetermined range (S106). According to the method and system for controlling a brushless doubly-fed motor and the frequency converter, soft starting ofthe brushless doubly-fed motor, conversion from asynchronous running to synchronous operation of the brushless doubly-fed motor and automatic adjustment of the power factor at the high-voltage side are realized.
Description
technical field [0001] The present invention relates to a brushless doubly-fed motor. Specifically, the present invention relates to a method, system, frequency converter, processor, storage medium, and terminal for controlling a brushless doubly-fed motor. Background technique [0002] In recent years, variable frequency speed regulation AC motors have been widely used in many industrial fields. At present, the mouse dragon induction motor, wound induction motor, double-fed motor, etc. are mostly used in AC speed regulation, but these motors have their own shortcomings and limitations. [0003] With the development of technology, a Brushless Doubly-fed Machine (BDFM) is proposed. Its stator winding is composed of two sets of three-phase symmetrical windings, and one set of windings is a power winding (or called a high-voltage winding). ), a set of windings is the control winding (or called the low-voltage winding). The brushless doubly-fed motor removes the brush on the ...
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IPC IPC(8): H02P27/04H02P23/26H02P23/00H02P6/00H02P6/20
CPCH02P6/005H02P6/20H02P23/0077H02P23/26H02P27/047
Inventor 毕学武柳飞赵大鹏
Owner SIEMENS FACTORY AUTOMATION ENG