H control for a sensorless permanent-magnet synchronous drive

T. L. Hsien, Y. Y. Sun, M. C. Tsai

Research output: Contribution to journalArticlepeer-review

74 Citations (Scopus)


A robust two degrees of freedom speed controller for a permanent-magnet synchronous motor (PMSM) drive system without using shaft sensor is proposed. The feedback controller and the prefilter are designed in a simple way by extending the utility of the H optimisation procedure. The feedback controller is designed to meet robust stability and disturbance rejection specifications by using the H loop shaping design procedure. For the prefilter the free contractive parameter resulting in H control is used to improve the robust model matching properties of the feedback system. A DSP-based sensorless PMSM drive under the field-oriented control framework is established for experimentally verifying controller performance.

Original languageEnglish
Pages (from-to)173-181
Number of pages9
JournalIEE Proceedings: Electric Power Applications
Issue number3
Publication statusPublished - 1997 Jan 1

All Science Journal Classification (ASJC) codes

  • Electrical and Electronic Engineering


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