[Objective] To enhance the performance of permanent magnet synchronous motor (PMSM) control systems

selecting an appropriate current control strategy for different application scenarios is crucial. This paper conducts a comparative study of five current control strategies: vector control based on hysteresis current control (HCC)

proportional-integral (PI) control

and sliding mode control (SMC)

as well as model predictive current control (MPCC) and deadbeat current control (DBCC). The study aims to reveal the performance differences of these strategies under various operating conditions

providing a basis for selecting the most suitable strategy in practical applications. [Methods] This study adopted a combined research methodology of simulation and experimentation. Discretized simulation models of the PMSM system under different control strategies were developed based on Matlab/Simulink. The dynamic response and steady-state accuracy of each strategy were evaluated by applying various loads

speeds

and control parameters. Meanwhile

a motor back-to-back test platform was built

and experiments were conducted under the same operating conditions. The simulation and experimental current and speed waveforms were comparatively analyzed

and the actual performance of the control strategy was validated. [Results] The simulation and experimental results indicated that the DBCC strategy employing space vector modulation exhibited superior performance. In HCC and MPCC

the voltage vector was applied throughout the entire sampling period

resulting in significant current ripple. The DBCC demonstrated the best real-time performance

followed by HCC

while PI control and SMC showed comparable results

and MPCC had the poorest real-time performance. During load transients

the speed drop was minimized by HCC

with the other four control strategies exhibiting similar speed drops. The recovery time was shortest for MPCC

followed by HCC

while the remaining three strategies showed comparable recovery times. [Conclusion] By comprehensively comparing the control performance and real-time performance of the above current control strategies

the DBCC for PMSM demonstrates superior performance in both aspects