The Optimization Algorithm of Torque Compensation for PMSM Systems with Periodic-Nonlinear Load - Intelligent Computing for Sustainable Energy and Environment - page 340

Fig. 4. D axis current state of the curve Fig. 5. Q axis current state of the curve
Fig. 6. Angular velocity state curve
5Conluon
This paper presents a torque compensation optimization algorithm based on con-
trol parameterization to interior permanent magnet synchronous motor control
system. Firstly, by solving the control parameters of the gradient formula, the
control problem is transformed into a mathematical programming problem, and
the optimal solution is obtained. Simulation results show that the control param-
eters are much smaller than the actual value. Thus, the problem of rotor speed
fluctuations in low frequency torque control is successfully solved. It can also be
seen from Figure (5) that, the rotor speed closely follows the target speed after
the control parameter. Hence system jitter is reduced and the accumulation of
errors in the actual process is avoid. Therefore, our results demonstrate that the
optimal control method can be a very promising tool for torque compensation
in IPMSM system with periodic-nonlinear load.
References
1. Yuan, D.K., Tao, S.G.: AC permanent magnet motor speed regulation system.
China Machine Press, Beijing (2011)
2. Chen, W.X.: Research and implementation of inverter air conditioner compressor
drive control system. Central South University, Changsha (2011)