Title:
MOTOR TRANSIENT DISTORTION MEASUREMENT METHOD AND SYSTEM
Document Type and Number:
WIPO Patent Application WO/2021/097888
Kind Code:
A1
Abstract:
A motor transient distortion measurement method and system. The method comprises: setting an input voltage of a motor, and generating a synchronous swept frequency signal by using the input voltage (S101); exciting the motor by using the synchronous swept frequency signal, and acquiring the synchronous swept frequency signal and an acceleration parameter of the motor in a vibration direction (S102); determining an order impulse response of the system by using the synchronous swept frequency signal and the acceleration parameter, and obtaining an output signal of the system by using the order impulse response and the synchronous swept frequency signal (S103); and determining a distortion signal according to the output signal and a measurement signal, and obtaining an average transient distortion signal by using the distortion signal (S104). Accordingly, the system comprises an input adjustment module (201), a signal acquisition module (202), an output calculation module (203), and a distortion calculation module (204). In the case of different input voltage signals, distortion signals corresponding to the input voltage signals are obtained, and linear and nonlinear distortion signals are eliminated in a modeling mode to calculate the average transient distortion signal, so that the accuracy of evaluating the performance of the motor can be improved.
Inventors:
XIANG ZHENG (CN)
GUO XUAN (CN)
GUO XUAN (CN)
Application Number:
PCT/CN2019/121573
Publication Date:
May 27, 2021
Filing Date:
November 28, 2019
Export Citation:
Assignee:
AAC ACOUSTIC TECH SHENZHEN CO LTD (CN)
AAC TECHNOLOGIES PTE LTD (SG)
AAC TECHNOLOGIES PTE LTD (SG)
International Classes:
G01R31/34; G01R23/20
Foreign References:
| CN109901066A | 2019-06-18 | |||
| CN110162171A | 2019-08-23 | |||
| CN110247631A | 2019-09-17 | |||
| CN103323195A | 2013-09-25 | |||
| US9628002B2 | 2017-04-18 |
Attorney, Agent or Firm:
HENSEN INTELLECTUAL PROPERTY FIRM (CN)
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