Simple and Effective Online Position Error Compensation Method for Sensorless SPMSM Drives
In low-speed sensorless control of surface-mounted permanent magnet synchronous machine (SPMSM), high-frequency (HF) signal injection methods are often used to estimate the rotor position by tracking the motor saliency characterized by the inductances. Cross-saturation effects caused by the load cur...
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| Veröffentlicht in: | IEEE transactions on industry applications 2020-03, Vol.56 (2), p.1475-1484 |
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| creator | Wang, Hechao Lu, Kaiyuan Wang, Dong Blaabjerg, Frede |
| description | In low-speed sensorless control of surface-mounted permanent magnet synchronous machine (SPMSM), high-frequency (HF) signal injection methods are often used to estimate the rotor position by tracking the motor saliency characterized by the inductances. Cross-saturation effects caused by the load current will influence the inductances, and consequently the saliency, which will introduce position estimation error to the sensorless drive, degrading the drive performance. Such load-dependent position estimation error, which is inherent in HF signal injection sensorless methods, is difficult to be identified by the sensorless algorithm itself. This article proposes a new online method to detect and compensate the load-dependent position estimation error for SPMSM without additional devices or the knowledge of the load-dependent HF inductances. The proposed method can identify effectively the load-dependent position estimation error by simply varying the direction of the current vector. Experimental results are presented to validate the proposed solution. |
| doi_str_mv | 10.1109/TIA.2019.2958792 |
| format | Article |
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Cross-saturation effects caused by the load current will influence the inductances, and consequently the saliency, which will introduce position estimation error to the sensorless drive, degrading the drive performance. Such load-dependent position estimation error, which is inherent in HF signal injection sensorless methods, is difficult to be identified by the sensorless algorithm itself. This article proposes a new online method to detect and compensate the load-dependent position estimation error for SPMSM without additional devices or the knowledge of the load-dependent HF inductances. The proposed method can identify effectively the load-dependent position estimation error by simply varying the direction of the current vector. Experimental results are presented to validate the proposed solution.</description><identifier>ISSN: 0093-9994</identifier><identifier>EISSN: 1939-9367</identifier><identifier>DOI: 10.1109/TIA.2019.2958792</identifier><identifier>CODEN: ITIACR</identifier><language>eng</language><publisher>New York: IEEE</publisher><subject>Algorithms ; Error compensation ; Estimation error ; Hafnium ; Identification methods ; Low speed ; Mathematical model ; Permanent magnets ; Position errors ; Position estimation error compensation ; Position sensing ; Rotors ; Salience ; sensorless ; Signal injection ; SPMSM ; Switches ; Synchronous machines ; Torque ; Voltage measurement</subject><ispartof>IEEE transactions on industry applications, 2020-03, Vol.56 (2), p.1475-1484</ispartof><rights>Copyright The Institute of Electrical and Electronics Engineers, Inc. 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Cross-saturation effects caused by the load current will influence the inductances, and consequently the saliency, which will introduce position estimation error to the sensorless drive, degrading the drive performance. Such load-dependent position estimation error, which is inherent in HF signal injection sensorless methods, is difficult to be identified by the sensorless algorithm itself. This article proposes a new online method to detect and compensate the load-dependent position estimation error for SPMSM without additional devices or the knowledge of the load-dependent HF inductances. The proposed method can identify effectively the load-dependent position estimation error by simply varying the direction of the current vector. Experimental results are presented to validate the proposed solution.</description><subject>Algorithms</subject><subject>Error compensation</subject><subject>Estimation error</subject><subject>Hafnium</subject><subject>Identification methods</subject><subject>Low speed</subject><subject>Mathematical model</subject><subject>Permanent magnets</subject><subject>Position errors</subject><subject>Position estimation error compensation</subject><subject>Position sensing</subject><subject>Rotors</subject><subject>Salience</subject><subject>sensorless</subject><subject>Signal injection</subject><subject>SPMSM</subject><subject>Switches</subject><subject>Synchronous machines</subject><subject>Torque</subject><subject>Voltage measurement</subject><issn>0093-9994</issn><issn>1939-9367</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2020</creationdate><recordtype>article</recordtype><sourceid>RIE</sourceid><recordid>eNo9kEtLw0AUhQdRsFb3gpsB16l3MplM7rLUqoWWFlI3boY8bjAlzcSZVPDfm9ri6sDhPOBj7F7ARAjAp-1iOglB4CRElWgML9hIoMQAZawv2QgAZYCI0TW78X4HICIlohH7SOt91xDP2pLPq4qKvv4mvm6buiW-sb7ua9vyuXPW8Zndd9T67M9aUf9pS14NfjqY1jXkPU83q3TFn90w4m_ZVZU1nu7OOmbvL_Pt7C1Yrl8Xs-kyKCRiH4Q6L2MsMSOhIogSKGKUGrQq4oQEQgJCy7KMwhxCnZSFKiXIPCdFIVSZTuSYPZ52O2e_DuR7s7MH1w6XJpRaS5VEGA8pOKUKZ713VJnO1fvM_RgB5kjQDATNkaA5ExwqD6dKTUT_8QSHf1DyF4L6a48</recordid><startdate>202003</startdate><enddate>202003</enddate><creator>Wang, Hechao</creator><creator>Lu, Kaiyuan</creator><creator>Wang, Dong</creator><creator>Blaabjerg, Frede</creator><general>IEEE</general><general>The Institute of Electrical and Electronics Engineers, Inc. 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Cross-saturation effects caused by the load current will influence the inductances, and consequently the saliency, which will introduce position estimation error to the sensorless drive, degrading the drive performance. Such load-dependent position estimation error, which is inherent in HF signal injection sensorless methods, is difficult to be identified by the sensorless algorithm itself. This article proposes a new online method to detect and compensate the load-dependent position estimation error for SPMSM without additional devices or the knowledge of the load-dependent HF inductances. The proposed method can identify effectively the load-dependent position estimation error by simply varying the direction of the current vector. 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| subjects | Algorithms Error compensation Estimation error Hafnium Identification methods Low speed Mathematical model Permanent magnets Position errors Position estimation error compensation Position sensing Rotors Salience sensorless Signal injection SPMSM Switches Synchronous machines Torque Voltage measurement |
| title | Simple and Effective Online Position Error Compensation Method for Sensorless SPMSM Drives |
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