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Motor drive operation mechanism of High-Voltage Circuit Breaker(HVCB) need permanent magnet synchronous motor(PMSM) with high-dynamic response. Reducing the rotor inertia of PMSM is one technique to realize high dynamic response of the motor. By digging holes in the rotor, the inertia can be reduced. The influence of shape, position and size of inertia-reducing holes on the performance of PMSM is...
Paper deals with a mathematical model to study the processes arising when starting a pump unit electric drive. The electric motor under investigation is a newly-developed induction motor with squirrel-cage rotor, designed to operate in continuous duty, with high efficiency energy class. The influence of the voltage deflection on the performance of specific induction motor as part of the electric drive...
This paper presents the design and implementation of a motion control system using EtherCAT. The EtherCAT frame with an embedded motion profile is introduced. Additionally, a closed loop stepper motor that uses the embedded data of the EtherCAT frame is shown. For position control purposes, a lead angle estimation was designed. The Proportional Integral Feed Forward (PI-FF) controller was implemented...
This paper studies a new intelligent operation technology of high voltage circuit breaker(HVCB). An operating mechanism driven by a three-phase permanent magnet synchronous motor (PMSM) for HVCB is described. Through simulation model, the mechanism's opening and closing operations characteristics are simulated and calculated, and the relationship between the optimal moving contact travel of HVCB and...
Due to the adverse temperature swings which normally occur in the power semiconductor devices during the start-up and deceleration periods of the motor drive system, the thermal design and control, as well as the reliability analysis of the power devices becomes crucial. In order to facilitate testing and access the loading and lifetime performances, a novel stress emulator for power semiconductor...
The control load system is a force simulation system, which simulates the operating force of the pilot when piloting an aircraft. According to the analysis of a certain type of aircraft control load system, designs an electric load control system by using DC torque motor as actuator. The system takes DSP TMS320F28335 as the controller, with the signal conditioning circuit, A/D conversion circuit,...
This paper designed a precise high-speed tracking and pointing Control system of Camera based on FPGA. The control system can control the remote sensing camera lens moving accurately and flexibly. The system had the function of control angle position control speed and stable speed regulation. We used the step motor to be actuator. The acceleration and deceleration process was stable, effective and...
In this paper, energy harvestation and its effective utilization by regenerative braking and motoring modes of operation of a PMBLDC drive system with varying load is discussed. PMBLDC drive is a permanent magnet machine, widely used because of their high power density and efficiency; so it is proposed in both motoring and regenerative modes of operation. In motoring mode, drive consumes electrical...
The performance of high-speed motorized spindle will directly affect the overall performance of high-speed machine tools, such as machining precision, processing strength and efficiency, vibration and noise, lifetime and so on. As one of the key R&D items of the motorized spindle design, motor control system is a nonlinear and strong coupling system. Based on the analysis of the control system...
Studying human motor control requires innovative engineering solutions including robots. For example, the motor control task(s) must be reliable before using system identification (SYSID) tools to estimate any motor control descriptors, e.g. neurophysiological parameters. Robots can improve the experiment reliability in contrast to passive devices, e.g. seated balance on a hemisphere. First, we present...
In this paper, a novel compensating method of the misalignment effect of hall sensors for brushless DC (BLDC) motor drives is proposed. The discrete Fourier transform (DFT) is applied to obtain the magnitude of the fundamental frequency component which is proportional to the interval between two adjacent hall-sensor signals, from which the relative misalignment error is identified. In addition, the...
This paper proposes a reducing technique of carrier noise of PWM inverters without increasing the carrier frequency during zero-speed drive of a permanent magnet motor. The feature of the proposed technique is that the frequency component of the carrier noise is diffused by zero-sequence voltage. In particular, the zero-sequence voltage is randomized by the M-sequence signal and added to the voltage...
This paper improves the permanent magnet (PM) machine position sensorless drive specifically for high speed operation. To obtain the rotor position, an approximation is typically assumed on the position estimator where the estimated position is almost equal to the actual position per sample instant. This small signal approximation might not be valid at high speed when the ratio of sampling frequency...
The use of electromechatronic positioning modules for activating industrial robot manipulator links is characterized by the fact that mechanics parameters change within a wide range at a normal operation. A well-known tendency at solution of this problem is the use of additional channels of identification and adaptation. Existing variants of regulators apply neural networks, fuzzy logic and genetic...
This paper presents an analysis of the torque ripple minimization under unbalanced phase resistance (UPR) in a five-phase permanent magnet assisted synchronous reluctance motor (PMa-SynRM). There are many reasons for arising UPR conditions in a motor. One of the key reasons can be the shortening winding turns of the motor which significantly reduces the winding insulations. Therefore, over the times,...
Capacity of cement new production lines has steadily increased over the last years. Reduction of investment costs is one of the most important driving factors for this trend. Because of simple scalability and low energy consumption, the vertical roller mill is a key part for single mill cement lines. The limits of material throughput of VRMs are, unlike other mill types, not defined by the comminution...
Motor control in ball and beam system consists of a beam structure which can be constructed with server electric motor to simulate the Underactuated mechanism system of robot. It can be contacted with a control theory and robot operation in balance behavior. It is well-known that robot structure in 1-D space with a motor to control system balance, which a simple ball and beam system to observe open-loop...
In this paper, speed control, torque ripple minimization and Power Factor Correction (PFC) of a Canonical Switching Cell (CSC) Converter fed sensorless Permanent Magnet Brushless DC (PMBLDC) motor drive system with varying load is discussed. The constant speed of operation with minimum torque ripples and unity power factor operation during transient state is the most difficult control part in the...
This paper develops the self control strategy of the Brushless DC Motor (BDCM) fed by the reduced Three Switch Three Phase Inverter (TSTPI) using the Xilinx Kintex 7 Field Programmable Gate Arrays (FPGA) package. This proposed command begins with a test simulation on the numerical environment Matlab using in the first step the Simulink toolbox and in the second step the Xilinx System Generator (XSG)...
Conventional direct torque control (DTC) of BLDC motor drive is quite cumbersome, because it operates on trapezoidal back EMF. The conventional DTC gives high torque ripple and switching frequency is variable due to bang-bang controllers. In this article, a new direct torque control scheme is proposed to a BLDC motor. This paper focuses to provide better direct torque control mechanism without using...
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