Abstract
This paper presents a power loss decrease method based on finite set model predictive control (FSMPC) with delay compensation for a motor emulator with reduced switch count. Specifically, the topology and mathematical model of the proposed motor emulator with reduced switch count are firstly built. Secondly, in light of given instructions, the normal or fault reference current of the motor emulator is set by a reference current setter. Then delay compensation is applied for the predictive current model to calculate the current residual generated by each switch control signal, and the current tracking performance under actions of two adjacent switch control signals is evaluated for each sector. Finally, a switch power loss objective function is defined, then the two adjacent switch control signals that generate the lowest switch power loss are selected for the next second instant, which minimizes the power loss of the motor emulator with ensuring satisfied current tracking performance. Simulation and experimental results show the feasibility and effectiveness of the proposed method.
Highlights
IntroductionMotors are widely used in various applications such as defense military, industrial production, and rail transit [1,2,3]
As key power equipment, motors are widely used in various applications such as defense military, industrial production, and rail transit [1,2,3]
Motivated by the above discussion, a power loss decrease method for a reduced switch count motor emulator is proposed in this paper, which is realized by finite set model predictive control (FSMPC) with delay compensation
Summary
Motors are widely used in various applications such as defense military, industrial production, and rail transit [1,2,3]. In [24], an optimized current control method with delay compensation is proposed to overcome harmonic current in distributed generation converters, and reference current at the instant is tracked by controlling one switch control signal to generate one basic space voltage vector during every sampling period. These presented motor emulators only pursuit current tracking performance as the control object, while power loss of motor emulators is severely neglected. Motivated by the above discussion, a power loss decrease method for a reduced switch count motor emulator is proposed in this paper, which is realized by FSMPC with delay compensation.
Sign-in/Register to view highlights & summary 
Published Version (
Free)
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call