Encoderless Servo Drive With Adequately Designed IPMSM for Pulse-Voltage-Injection-Based Position Detection

Autor:	T. Shiota, Sohji Murakami, M. Hisatsune, Kozo Ide, Motomichi Ohto
Rok vydání:	2012
Předmět:	Electronic speed control Engineering business.industry Bandwidth (signal processing) Industrial and Manufacturing Engineering Signal injection Pulse voltage Control and Systems Engineering Control theory Resolver Servo drive Electrical and Electronic Engineering business Synchronous motor Servo
Zdroj:	IEEE Transactions on Industry Applications. 48:1922-1930
ISSN:	1939-9367 0093-9994
Popis:	This paper presents a technology fusion of encoderless control technique and encoderless-specialized motor applied for servo drive applications. First, a fast encoderless control technique which employs a high-frequency pulsating signal injection method with square-wave pulse voltage at d -axis is proposed. The estimation principle is almost the same as that of a resolver, and the control technique includes a fast initial position estimation algorithm based on magnetic hysteresis phenomenon. Next, a prototype interior permanent-magnet synchronous motor is designed to act like a resolver. Then, evaluation results of the prototype encoderless drive system are reported. Finally, the prototype system is confirmed to fulfill major servo specifications of about 10-b net resolution of the position detection at standstill and more than 60-Hz speed control bandwidth in operation speed from 0 up to 1000 min-1 . In conclusion, the proposed encoderless drive system is verified to achieve major control performances almost comparable to those of encoder-assisted servo drive systems.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::f763390d2d42bc6fffa604b7b1471903 https://doi.org/10.1109/tia.2012.2226132 Zobrazit plný text záznamu