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This paper describes an energy management strategy for an electric vehicle (EV). The proposed EV architecture contains a pack of the batteries which presents the energy source and a pack of the supercapacitors (SC) used as power source. The pack of the batteries produces the necessary energy to move forward the vehicle while the pack of the SC produces the lacking power in acceleration and in braking...
Present paper deals with speed controller design for vector control of permanent magnet synchronous motor (PMSM). Hysteresis current controller based vector control of PMSM has been simulated in MATLAB/Simulink environment. The speed controller of PMSM has been designed analytically and using MATLAB single input-single output (SISO) tool and MATLAB/Simulink PI controller tuner. The performance of...
Permanent Magnet Synchronous Motor (PMSM) as the key component of the Electric Vehicles (EVs), has numerous advantages over other synchronous motors. Fault diagnosis is essential to guarantee the safety and continuity of the operation for EVs. An undetected fault in the PMS M system may lead to high repair cost, or even catastrophic failure. Among lots of faults in the PMSM, the most serious are short...
A novel four quadrant operation control strategy of permanent magnet synchronous motor (PMSM) drive systems is proposed. In order to regulate precisely output direct current (DC) bus voltage and achieve the control of unity power factor, the exponential functional-based sliding mode reaching law (ESMRL), which adapts to the variations of the grid-side inverter and sliding mode surfaces, is developed...
This paper presents the design of Unscented Kalman Filter (UKF) for estimation of state space variables of permanent magnet synchronous machine (PMSM). The UKF is shown together with the field oriented speed control. At first, the position and the speed of PMSM are measured, and UKF is used only for a load torque estimation. It is indicated how differences in sampling time of the speed and the current...
In this paper, a robust and an efficient tracking controller based on model reference adaptive system (MRAS) technique is performed for mobile robot in order to get the accurate trajectory tracking performance. The model reference adaptive system (MRAS) technique has been presented so as to achieve the estimated value of system's speed information. To estimate the rotor position and speed of the mobile...
This paper presents a comparison between Field Oriented Control and Direct Torque Control methods of a Matrix Converter-fed (MC) Permanent Magnet Synchronous Motor (PMSM). MC is becoming widely used because of the unity power factor and the lack of energy storage element. FOC method calculates the duty of MC states with use of geometric relations between voltage and current vectors. DTC method, on...
Adaptive fuzzy PID controllers, combining fuzzy controllers which are highly adaptable with conventional PID controllers which have no control error, have been used in vector control systems of permanent synchronous machines(PMSM). In this paper, an adaptive fuzzy PID controller of which membership functions are dramatically improved is designed and applied to a PMSM. Then, simulation in Simulink...
In this paper, a model of Permanent Magnet Synchronous Motor (PMSM) using vector control algorithm is built and simulated by MATLAB/Simulink based on TMS320F28035 DSP chip. Firstly, the principle of vector control theory and the mathematical models are expounded clearly. Then, the simulation system model is established according to the method adopted by motor and the target board type, moreover, the...
Torque ripple exists at the output of permanent magnet synchronous motors (PMSMs) as a result of current measurement error, non-sinusoidal back-electromotive force (EMF), and cogging torque. Acoustic emissions caused by torque ripple coupling through the mechanical system and interacting with the motor housing limit the applications available to PMSMs. Since part of the cogging torque component is...
This paper presents an evaluation and investigation of a dynamic adaptive observer for the surface permanent magnet synchronous motor (PMSM) drive performance under the speed sensorless intelligent control. Sensorless speed control of PMSM as a more robust, smaller size and less expensive solution is presented. A Luenberger statebased adaptive (LSA) observer is proposed here to estimate the rotor...
To obtain a wide-speed range control from a standstill to a high speed region, combining the approaches - LF (Low Frequency) signal injection and EKF (Extended Kalman Filter) in sensorless PMSM drive is proposed in this paper. The LF signal injection algorithm is applied to the startup and low-speed mode for the SPMSM; then it will transfer to the medium or high speed mode using the EKF algorithm...
To improve disturbance rejection ability of permanent magnet synchronous motor (PMSM) system, a novel sliding-mode reaching law is proposed in this paper. Then, based on this reaching law, a sliding-mode load torque observer is presented, which is used as feedforward value to compensate the output of speed PI regulator. Simulation results show that system robustness can be enhanced greatly and the...
This paper studies the senserless control of surface-mount permanent magnet synchronous motor (SPMSM) based on model reference adaptive system (MRAS) method. We focus attention on how parameter variation and dead-time influence the speed and position estimation error of the sensorless control strategy. Comparison of different impacts caused by each parameter variation is realized using Matlab/Simulink...
In the paper selected results of study of the low speed range Permanent Magnet Synchronous Motor (PMSM) sensorless drive are presented. This drive uses the position estimator, which is based on the back electromotive force (BEMF) observer. The drive was tested by simulation and in laboratory. It works properly especially in projected range of the speed, which covers the speed in a single revolutions...
A composite sliding mode control based on the load characteristic of the permanent magnet direct-driven system is presented for a mining scraper conveyor. First, the mathematical model of a permanent magnet synchronous motor is established based on the coordinate transformation theory. Subsequently, the soft switching sliding mode observer (SS-SMO) is designed to observe the change of load torque...
Reducing number of static converters in electromechanical systems will lead to a global degradation of energy efficiency. In the case of Mono-Inverter Dual-Permanent Magnet Synchronous Machine (MIDPMSM) system, several studies have shown this effect especially when the load torques are different. In this paper, after analyzing the performance of Optimal Predictive Control (OPC) for MIDPMSM system...
This paper investigates design and implementation of a predictive controller for dual-PMSM drive systems to improve output torque and dynamic responses. Experimental results show the dual-PMSM drive system has satisfactory performance, including good transient responses, load responses, and tracking responses. In addition, when one PMSM drive fails, the other PMSM drive still can provide output torque...
Sensorless speed control of Permanent Magnet Synchronous Motor (PMSM) is still in development to eliminate the existing drawbacks such as speed ripples, torque ripples and slow response. This paper proposes Field Oriented Control (FOC) based on improved Model Reference Adaptive System (MRAS) to control the motor speed and minimize both the speed and torque ripples for the PMSM. The improved MRAS strategy...
This paper presents a non-isolated power factor correction (PFC) Zeta converter fed vector controlled round rotor Permanent magnet synchronous motor (PMSM) drive operating under variable load and speed. The vector controlled drive uses a proportional-integral (PI) controller for production of maximum torque per ampere, while the PFC converter improves power quality (PQ) at AC mains in continuous inductor...
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