document: Incremental motion control of linear synchronous motor In this study a particular incremental motion control problem , which is specified by the trapezoidal velocity profile using multisegment sliding mode control -LRB- MSSMC -RRB- , is proposed to control a permanent magnet linear synchronous motor -LRB- PMLSM -RRB- servo drive system . First , the structure and operating principle of the PMLSM are described in detail . Second , a field-oriented control PMLSM servo drive is introduced . Then , each segment of the multisegment switching surfaces is designed to match the corresponding part of the trapezoidal velocity profile , thus the motor dynamics on the specified-segment switching surface have the desired velocity or acceleration corresponding part of the trapezoidal velocity profile . In addition , the proposed control system is implemented in a PC-based computer control system . Finally , the effectiveness of the proposed PMLSM servo drive system is demonstrated by some simulated and experimental results
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