Sensorless Control of PMSM by a Four-Switch Inverter with Compensation of Voltage Distortion and Adjustment of Position Estimation Gain
- Authors
- Kim, Byeong-Han; Lee, Dong-Myung
- Issue Date
- Jan-2017
- Publisher
- KOREAN INST ELECTR ENG
- Keywords
- Sensorless control; Four-switch inverter; B4 inverter; Matsui; PMSM
- Citation
- JOURNAL OF ELECTRICAL ENGINEERING & TECHNOLOGY, v.12, no.1, pp.100 - 109
- Journal Title
- JOURNAL OF ELECTRICAL ENGINEERING & TECHNOLOGY
- Volume
- 12
- Number
- 1
- Start Page
- 100
- End Page
- 109
- URI
- https://scholarworks.bwise.kr/hongik/handle/2020.sw.hongik/6209
- DOI
- 10.5370/JEET.2017.12.1.100
- ISSN
- 1975-0102
- Abstract
- This paper proposes performance improvement schemes for sensorless PMSM control drive using a four-switch three-phase inverter (so-called B4 inverter). In the proposed scheme, the back-EMF estimation-based sensorless control algorithm is used to control the brushless PMSM without position sensors. In order to have stable operation, this paper presents a gain adjustment scheme that compensates the reduction of stable sensorless operation range as long as the rotor speed increases. In B4 topology, the center point of dc-link capacitors is connected to 3-phase load, and it is prone to have the load current distortion. Hence, to mitigate this problem, a distortion compensation scheme by modifying voltage commands using measured dc-link potentials is proposed in this paper. The validity of the proposed method is evaluated by simulations and experiments.
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Collections - College of Engineering > School of Electronic & Electrical Engineering > 1. Journal Articles
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