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High-speed angular position detection system and method

A detection system, angular position technology, applied in the direction of the control system, vector control system, electromechanical devices, etc., can solve the problems of low precision, easy deviation of the angle, etc., achieve high resolution and precision, reduce detection error, solve the problem of sampling Lag effect

Pending Publication Date: 2017-07-04
常州寻心电子科技有限公司
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Problems solved by technology

[0007] The purpose of the present invention is to overcome the problem that the angle detected by the high-speed angular position sensor in the prior art is prone to deviation and low precision, and propose a high-speed angular position detection system and method

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Embodiment Construction

[0035] The present invention is described in further detail now in conjunction with accompanying drawing. These drawings are all simplified schematic diagrams, which only illustrate the basic structure of the present invention in a schematic manner, so they only show the configurations related to the present invention.

[0036] In the description of the present invention, it should be noted that unless otherwise specified and limited, the terms "installation", "setting", and "connection" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection. Connected, or integrally connected; either directly or indirectly through an intermediary. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present invention according to specific situations.

[0037] Such as figure 1 The high-speed angular position detection system shown includes: a signal generating unit 1, a signal processing unit 2,...

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Abstract

The invention belongs to the technical field of angular position sensors, and particularly relates to a high-speed angular position detection system and a method. The system comprises a signal generation unit, a signal processing unit, a communication module and a controller. The detection method comprises steps that when starting at the kth period, the controller communicates with the angular position sensor, and the controller obtains that the kth angle feedback value is theta<(k)> through the communication; analog-digital conversion is performed on the k-1 th period through an A / D conversion module, an angular value theta<k-1> obtained through calculation of a calculation module is the k+1 period T<k+1>, and assignment is performed on an angular feedback value theta<(k+1)> to be sent through the communication; and sampling calculation is performed on the T<k> period to obtain an angular value theta<k>, after the communication of the theta<k> is finished at the T<k+1> period, assignment is performed on an angular feedback value theta<(k+2)> at the k+2 th period T<k+2>, i.e., theta<(k+2)>=theta<k>. According to the invention, effects on angular feedback signal frequency imposed by speed change are effectively eliminated, and a problem of a sampling lag between front and back signals is effectively solved.

Description

technical field [0001] The invention belongs to the technical field of angular position sensors, and in particular relates to a high-speed angular position detection system and method. Background technique [0002] High-speed motors or electric spindles have special applications in industrial, military and other fields. Using a high-speed motor or electric spindle to directly drive a high-speed load can save the mechanical transmission device, avoiding the loss, mechanical vibration and noise caused by the transmission device, thereby reducing the size of the equipment and improving the operating efficiency and accuracy. The high-speed motor or electric spindle adopting vector control has the advantages of high efficiency, reliable operation, high power factor, good force index, and good control characteristics. [0003] However, the reason why it is difficult to realize the control of high-speed motors or electric spindles with vector control is that their high speeds corr...

Claims

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Application Information

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IPC IPC(8): H02P21/18H02K11/215
CPCH02P21/0085
Inventor 刘杰石晶合
Owner 常州寻心电子科技有限公司
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