Robust sensorless FCS-PCC control for inverter-based induction machine systems with high-order disturbance compensation
- PDF / 2,273,166 Bytes
- 10 Pages / 595.276 x 790.866 pts Page_size
- 22 Downloads / 299 Views
ORIGINAL ARTICLE
Robust sensorless FCS‑PCC control for inverter‑based induction machine systems with high‑order disturbance compensation Junxiao Wang1 · Fengxiang Wang2 Received: 29 January 2020 / Revised: 7 June 2020 / Accepted: 10 June 2020 © The Korean Institute of Power Electronics 2020
Abstract Due to its theoretically fast dynamic response with unlimited bandwidth for direct switch-driven-based induction machines, the finite control set predictive current control (FCS-PCC) method has been verified to be an effective solution in recent years. However, dynamic limitations of the outer speed PI controller exist, especially with high-order time-varying disturbances. In addition, hardware cost can be reduced. Using the universal proportional integral observer (UPIO) method, a robust deadbeat-like encoderless-based FCS-PCC control scheme is investigated for induction machine systems in this paper. The encoder is avoided using the proposed sensorless method. In addition, the system response and disturbance attenuation are enhanced in presence of time-varying unknown load torque and uncertainties. The squared norm is adopted for the cost function design to ensure system stability. Experimental results illustrate that it has good performance such as fast dynamics, good low-speed steady-state accuracy, and robustness. Keywords Induction machine · Universal proportional integral observer (UPIO) · Finite control set predictive current control (FCS-PCC) · Robustness
1 Introduction Electrical machine control systems are widely employed in industry applications such as high-speed rails and electric vehicles [1–3]. For high-performance requirements, the control issue has also attracted a great deal of interest in industrial and academic communities. The field-oriented control scheme is popular for controlling alternating current (AC) machines. However, it has six PI parameters for the cascaded structure including one speed controller and two current controllers. Thus, it is not easy to achieve a faster dynamic response due to the bandwidth limitation of the inner loop. The direct torque control structure includes a look up table (LUT) and two hysteresis controllers, and it can improve the system dynamic response at the cost of a large torque ripple is [4, 5].
* Junxiao Wang [email protected] 1
College of Information Engineering, Zhejiang University of Technology, Hangzhou, China
Quanzhou Institute of Equipment Manufacturing Haixi Institute, Chinese Academy of Science, Jinjiang, China
2
During the past decade, finite control set model predictive control (FCS-MPC) has aroused a great deal of interest, and can be regarded as an effective and attractive machine driving method [6, 7]. The FCS-MPC scheme has many good points such as a flexible design principle, a straightforward control concept for high dynamics that can theoretically produce unlimited bandwidth. In addition, it is a good nonlinear multi-variable system constraints solution. Considering the different performance requirement for power ele
Data Loading...
