Stator flux linkage setting method for quickening starting process of permanent magnet synchronous motor
A permanent magnet synchronous motor and stator flux linkage given technology, which can be used in the control of generators, motor generators, and electromechanical brakes. Motor production and control costs, the effect of easy realization of the control process
Inactive Publication Date: 2016-01-13
JIANGSU UNIV OF SCI & TECH
View PDF3 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0003] In order to speed up the permanent magnet synchronous motor starting process, there are two existing methods: one is to realize by changing the internal structure of the permanent magnet synchronous motor, and to speed up the permanent magnet synchronous motor by reducing the rotor inertia moment of the permanent magnet synchronous motor. The starting process, but this method is costly and difficult to implement; another solution is to achieve fast starting only from the perspective of increasing the starting current of the motor, but the problem is that simply increasing the starting current will cause the motor to heat up And other problems, it is easy to make the motor enter the over-current protection, and even cause the motor to fail to start and other problems
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0022] The technical solutions of the present invention will be described in detail below in conjunction with the accompanying drawings.
[0023] Such as figure 1 As shown, the present invention provides a given method for accelerating the stator flux linkage of the permanent magnet synchronous motor starting process, comprising the following steps:
[0024] (1) In order to make the permanent magnet synchronous motor quickly reach the given speed ω * , it is first necessary to judge whether the actual speed ω of the permanent magnet synchronous motor is less than the given speed ω * , if greater than the given speed ω * , it means that the permanent magnet synchronous motor has been started at this time, and there is no need to implement this plan; if it is less than the given speed ω * , then go to step (2);
[0025] (2) Since the electromagnetic torque of the permanent magnet synchronous motor is the cross product of the current vector and the stator flux linkage vector,...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention discloses a stator flux linkage setting method for quickening a starting process of a permanent magnet synchronous motor. The method comprises the following steps: judging whether an actual rotating speed of the permanent magnet synchronous motor is less than a set rotating speed or not; if the actual rotating speed is greater than the set rotating speed, ending the process; and if the actual rotating speed is less than the set rotating speed, designing a rotor induction flux linkage set value and a stator armature reaction flux linkage set value, and calculating a stator flux linkage set value according to a cross product of vectors of the rotor induction flux linkage set value and the stator armature reaction flux linkage set value. According to the method, the motor starting time can be effectively shortened; and the work efficiency is improved.
Description
technical field [0001] The invention relates to a control method of a permanent magnet synchronous motor, in particular to a method for setting the stator flux linkage of the permanent magnet synchronous motor. Background technique [0002] The permanent magnet synchronous motor has a series of advantages such as small size, simple structure, low loss and high energy saving, and has been widely used in various fields of industry. [0003] In order to speed up the permanent magnet synchronous motor starting process, there are two existing methods: one is to realize by changing the internal structure of the permanent magnet synchronous motor, and to speed up the permanent magnet synchronous motor by reducing the rotor inertia moment of the permanent magnet synchronous motor. The starting process, but this method is costly and difficult to implement; another solution is to achieve fast starting only from the perspective of increasing the starting current of the motor, but the p...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Applications(China)
IPC IPC(8): H02P21/34H02P21/14
CPCY02P80/10
Inventor 魏海峰韦汉培张懿朱学青
Owner JIANGSU UNIV OF SCI & TECH