scholarly journals The Fuzzy PI Controller for PMSM’s Speed to Track the Standard Model

2020 ◽  
Vol 2020 ◽  
pp. 1-20 ◽  
Author(s):  
Nguyen Vu Quynh

This paper proposes a fuzzy PI controller to control the speed of a permanent magnet synchronous motor (PMSM). The structure of the system includes the speed loop controller (SLC) and the current loop controller (CLC). The speed loop controller is the fuzzy PI and standard model (SM). The CLC includes vector control and the space vector pulse width modulation (SVPWM). It compiles two closed-loop control systems for the PMSM. This research uses a very high-speed integrated circuit hardware description language (VHDL) to implement the proposed algorithm and embed it into Matlab/Simulink for simulation. Based on the PMSM parameter, this article tests the controller’s correctness with some of the load cases by changing the combined inertia and viscous friction of rotor and load. After success in simulation, the system is tested again by experiment on the FPGA kit. The simulation and experiment results show that when the load changes, the PMSM speed is still stable. The novelty of this research is that it compares two kinds of controllers between simulation and experiment results.

2011 ◽  
Vol 80-81 ◽  
pp. 1249-1257
Author(s):  
Bang Cheng Han ◽  
Dan He ◽  
Fang Zheng Guo ◽  
Yu Wang ◽  
Bing Nan Huang

A phase-locked loop (PLL) control system based on field programmable gates array (FPGA) is proposed through analyzing the model of three-phase unipolar-driven BLDCM (brushless direct current motor) to enhance the reliability and accurate steady-state speed for magnetically suspended control moment gyroscope (MSCMG). The numerical operation module, PLL module and current-loop control module are designed based on FPGA using very-high-speed integrated circuit hardware description language (VHDL) to realize the control law of the digital system. The pulse width modulation (PWM) generating module for Buck converter, the commutation signal generating module for the inverter and ADC module are designed for driving the motor and sampling the current signal. The PLL is analyzed and optimized in the paper and all the modules are verified using the software of ModelSim and the experiments. The simulation and experiment results on BLDCM of MSCMG show that the stability of the motor velocity can reach 0.01% and 0.02% respectively by the PLL technology based on FPGA, which is difficult to be obtained by conventional proportion integral different (PID) speed control.


Electronics ◽  
2019 ◽  
Vol 8 (9) ◽  
pp. 1034 ◽  
Author(s):  
Xudong Liu ◽  
Qi Zhang

The implementation and experimental validation of current control strategy based on predictive control and equivalent input disturbance approach is discussed for permanent magnet synchronous motor (PMSM) control system in the paper. First, to realize the current decoupling control, the deadbeat predictive current control technique is adopted in the current loop of PMSM. Indeed, it is well known that the traditional deadbeat current control cannot completely reject the disturbance and realize the zero error current tracking control. Then, according to the model uncertainties and the parameter variations in the motor, an equivalent input disturbance approach is introduced to estimate the lump disturbance in the system, which will be used in the feed-forward compensation. Thus, a compound current controller is designed, and the proposed algorithm reduces the tracking error caused by the disturbance; the robustness of the drive system is improved effectively. Finally, simulation and experiment are accomplished on the control prototype, and the results show the effectiveness of the proposed current control algorithm.


2014 ◽  
Vol 508 ◽  
pp. 196-199
Author(s):  
Yi Min Chu ◽  
Wu Wang

PID controller has widely used in control system for its simple structure, good control effect and strong robustness, the PI control strategy was introduced into rotor side converter of DFIG control with the mathematical models and the structure of stator flux-oriented vector control. Particle swam optimization algorithm was a new random optimization technology which has the features of rapid calculation speed. The PI controller design for RSC current loop and speed loop control was analyzed, and the PSO algorithm was presented for PI controller design, the simulation experiments demonstrated that the algorithm was suitable for the RSC control system with PSO remarkable search capability.


2014 ◽  
Vol 556-562 ◽  
pp. 2317-2320
Author(s):  
Jian Guo Song ◽  
Qing Lu Zhang ◽  
Peng Fei Xie

In this paper, we study the flux-weaken control with the method of the advanced angle of currents in the interior permanent magnet synchronous motor of the electric cars. We adopt the first-order digital filter to handle the data acquired from three phase currents and realize the speed and current double closed loop control by the incremental PI regulation. In Matlab/Simulink, we build the flux-weaken control system simulation model with the double closed loop. For the 40kw IPMSM, we develop the experimental platform based on TMS320F28335. The simulation and experiment archive a good control effect.


Energies ◽  
2018 ◽  
Vol 11 (10) ◽  
pp. 2631
Author(s):  
Jianfei Chen ◽  
Caisheng Wang ◽  
Jian Li

There has been increasing interest for industry applications, such as solar power generation, fuel cell systems, and dc microgrids, in step-up dc-dc converters with reduced number of components, low component stress, small input ripples and high step-up ratios. In this paper, an input-parallel-output-series three-level boost (IPOS-SC-TLB) converter is proposed. In addition to achieving the required performance, the input and output terminals can share the same ground and an automatic current balance function is also achieved in the IPOS-SC-TLB converter. Besides, a capacitor voltage imbalance mechanism was revealed and a three-loop control strategy composed of output voltage loop, input current loop and voltage-balance loop was proposed to address the voltage imbalance issue. Finally both simulation and experiment studies have been conducted to verify the effectiveness of the IPOS-SC-TLB converter and the three-loop control strategy.


Author(s):  
Ibrahim Farouk Bouguenna ◽  
Ahmed Azaiz ◽  
Ahmed Tahour ◽  
Ahmed Larbaoui

<p>This paper  present a speed hybrid fuzzy-sliding mode control (HFSMC) of a permanent magnet synchronous motor (PMSM) to ensure the traction of an electric vehicle; at the first we applied the sliding mode control (SMC) with three surfaces on the PMSM by  taking into account the dynamics of the vehicle; And afterwards we applied the fuzzy-sliding mode   in which the surface of the speed is replaced by a Fuzzy-PI controller; Simulation under Matlab/Simulink has been carried out to evaluate  the efficiency and robustness of the proposed control on a system drive. It should be noted that the reference speed is the European urban driving schedule ECE-15 cycle.</p>


2015 ◽  
Vol 764-765 ◽  
pp. 496-500 ◽  
Author(s):  
Ying Shieh Kung ◽  
Nguyen Phan Thanh ◽  
Hsin Hung Chou

This work presents a hardware implementation of a simple microprocessor; then uses this microprocessor to design a PI controller for PMSM (Permanent Magnet Synchronous Motor) drives. In this paper, firstly, the mathematical model of PMSM drives is illustrated. Secondly, the architecture of a simple microprocessor based on RTL (Register Transfer Level) method is proposed and the VHDL (Very high speed IC Hardware Description Language) is adopted to describe the behavior of the simple microprocessor. Thirdly, a machine code of PI controller based on the proposed simple microprocessor is designed. Finally, a co-simulation by Simulink/ModelSim is applied and verified the performance of the microprocessor-based PI controller.


2013 ◽  
Vol 341-342 ◽  
pp. 1018-1022
Author(s):  
Hong Bo Huang ◽  
Yong Zhi Wang

According to the analysis of mathematical model for permanent magnet synchronous motor (PMSM) in the d-q coordinate system, space vector width modulation (SVPWM) technology is introduced to the design of PMSM control system. The paper builds dual-closed loop control system of SVPWM for PMSM, and the outer loop is speed loop, the inner loop is current loop, at the same time, the paper builds the simulation models and makes simulation in Matlab/Simulink. The simulation results show that the SVPWM technology applied to the control system of PMSM is very successful, and the dynamic performance of control system is very good. So the application of SVPWM technology in PMSM provides a new thoughtful way for PMSM control system designing and debugging in actual application.


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