Research of Brushless Direct Circuit Linear Motor robust set-point control based on Robust L2

Robust L₂ control is a controller with fixed structure and parameter. It also satisfies performance requirement under the bad uncertainty, which is a salient features for Robust L₂ control. The mathematical model of Brushless Direct Circuit Linear Motor (BLDCLM) is nonlinear, so introduction nonlinear control can restrain disturbance and track the input signal accurately. Then according to positioning control of BLDCLM with variable load and driver gain variation, robust L₂ controller design is addressed. MATALB/SIMULINK software is applied in BLDCLM set-point control. The simulation result verifies the scheme is rational and valid.