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http://dx.doi.org/10.6113/TKPE.2021.26.4.298

Speed Ripple Based Mechanical Angle Estimation Scheme for Smooth Stop Control of Reciprocating Compressor  

Lee, Kwang-Woon (Div. of Marine Mechatronics, Mokpo Nat'l Maritime University)
Publication Information
The Transactions of the Korean Institute of Power Electronics / v.26, no.4, 2021 , pp. 298-301 More about this Journal
Abstract
A mechanical angle estimator is presented in this study to achieve the sensorless control of permanent magnet synchronous motor (PMSM) used in driving a reciprocating compressor. Braking the PMSM at a specific mechanical angular position is critical for the silent stoppage of the reciprocating compressor. The performance of conventional mechanical angle observers used in reciprocating compressor drives can be seriously affected according to gains of the speed controller because such observers rely on the magnitude of current ripples. A speed ripple-based mechanical angle estimator is proposed to solve this problem. Experimental results showed the effectiveness of the proposed method.
Keywords
Mechancial angle estimator; Sensorless controlled PMSM; Silent stoppage; Reciprocating compressor;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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