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System and method for estimating position angle of rotor of permanent magnet synchronous motor based on visualization

A permanent magnet synchronous motor, rotor position angle technology, applied in the direction of calculation, measurement device, electrical digital data processing, etc., can solve the problems of increasing the failure rate, increasing the failure rate, complexity, etc., and achieving the effect of reducing the failure rate

Inactive Publication Date: 2014-11-26
苏州普识安全培训有限公司
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Problems solved by technology

Combined with its method, it can effectively avoid the problem that too many structural elements of the measuring device for obtaining rotor position information in the prior art often lead to an increase in failure rate, and if the waveform display system is added, it will be more complicated and increase the failure rate. defect

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  • System and method for estimating position angle of rotor of permanent magnet synchronous motor based on visualization

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Embodiment Construction

[0023]LabVIEW integrates the work of creating the user interface (called a front panel) naturally into the development cycle. LabVIEW programs / subroutines are called virtual instruments (VIs). Each VI has three components: block diagram, front panel, and icons / connectors. The linker is used for other block diagrams to call this VI. Programmers can use the controls on the front panel to input data into the running VI, or use the indicators to output the results of calculations. The front panel can also be used as a program interface: each virtual instrument can use the front panel as a user interface and run as a program; it can also be placed as a node in another VI block diagram and connected through the connector panel. The front panel defines the VI's inputs and outputs. This means that each VI can be easily tested before being embedded as a subroutine in a larger project.

[0024] Such as figure 1 As shown, the visualization-based permanent magnet synchronous motor ro...

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Abstract

The invention provides a system and method for estimating the position angle of a rotor of a permanent magnet synchronous motor based on visualization. According to the system for estimating the position angle of the rotor of the permanent magnet synchronous motor based on visualization, an angular velocity sensor is arranged on the rotor of the permanent magnet synchronous motor, the angular velocity sensor is connected with a first input pin of a data collecting system which is provided with an SCI module and based on a DSP, the data collecting system based on the DSP is further connected with an upper computer through an RS232 interface, the upper computer is provided with a rotor position angle estimation module based on LabVIEW, and the upper computer contains a VISA module. By the adoption of the system and method for estimating the position angle of the rotor of the permanent magnet synchronous motor based on visualization, the defects that in the prior art, due to too many structural elements of a measurement device for obtaining position information of the rotor, the fault rate is often increased, and if the measurement device is combined with a waveform display system, the prior art is more complicated, and then the fault rate is increased are overcome.

Description

technical field [0001] The invention belongs to the technical field of the rotor position angle of a permanent magnet synchronous motor, and in particular relates to a visualization-based permanent magnet synchronous motor rotor position angle estimation system and method thereof. Background technique [0002] Permanent magnet synchronous motors are commutated by thyristors. With the rotor position information, the position signal of the motor can be used as an input to a processing device such as DSP, and then the distribution relationship of the current can be obtained to control which thyristor is on and which is off, so that the operation of replacing the thyristor can be realized. [0003] Usually the rotor position information is obtained by means of components such as measuring devices, but the existing measuring devices for obtaining rotor position information have too many structural components, which often leads to the problem of increased failure rate, and if the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F19/00G01P3/00
Inventor 宋奇吼刘盛烺童岩峰徐百钏陈莉
Owner 苏州普识安全培训有限公司
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