A Technique of Measuring Voltage in VVVF Frequency Convert Speed Control

Wu Hongbin; Zhao Jiagui

doi:10.13374/j.issn1001-053x.1994.05.012

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Wu Hongbin, Zhao Jiagui. A Technique of Measuring Voltage in VVVF Frequency Convert Speed Control[J]. Chinese Journal of Engineering, 1994, 16(5): 459-463. doi: 10.13374/j.issn1001-053x.1994.05.012

Citation:

Wu Hongbin, Zhao Jiagui. A Technique of Measuring Voltage in VVVF Frequency Convert Speed Control[J]. Chinese Journal of Engineering, 1994, 16(5): 459-463. doi: 10.13374/j.issn1001-053x.1994.05.012

Wu Hongbin, Zhao Jiagui. A Technique of Measuring Voltage in VVVF Frequency Convert Speed Control[J]. Chinese Journal of Engineering, 1994, 16(5): 459-463. doi: 10.13374/j.issn1001-053x.1994.05.012

Citation:

Wu Hongbin, Zhao Jiagui. A Technique of Measuring Voltage in VVVF Frequency Convert Speed Control[J]. Chinese Journal of Engineering, 1994, 16(5): 459-463. doi: 10.13374/j.issn1001-053x.1994.05.012

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A Technique of Measuring Voltage in VVVF Frequency Convert Speed Control

doi: 10.13374/j.issn1001-053x.1994.05.012

Automation and Information Engineering College, USTB, Beijing 100083

Received Date: 1994-03-27
Available Online: 2021-11-13

Abstract

Abstract

A new technique of measuring voltage in VVVF frequency converting speed control is presented. Basing on single chip microcomputer MCS-8098, the technique uses synchronous sampling in hardware and quasisynchrouous sampling in programming. Some other techniques speeding up the running velocity of programming are also suggested. By DFT, an accuate result can be obtained for each harmonics.
- frequency control of motor speeds,
- synchnigation sampling,
- Fqurier transform,
- voltage measurerment