The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
In this paper, the design strategy of the switched reluctance motor (SRM) is proposed for the propulsion system of the small electric vehicle (EVs), and the multi-objective optimization method of the switched reluctance drive is studied, as SRM has the features of high efficiency, high power density and high reliability. First the design strategy of SRM for the EVs is discussed. Then the procedure...
Wound rotor synchronous generators are widely used for diesel-generating sets (gen-sets) and wind power generation. For the former, they are designed for operation at only one speed and their operating conditions are dictated by the load. The gen-sets are a standard power supply in islanded power systems as a back-up power supply in remote locations [1]-[3]. For the latter, the wind turbine needs...
The physics-based phase variable model of permanent magnet synchronous machines is developed for the simulation study of machine control. The parameters of the physics-based phase variable model, inductances and flux linkages are calculated from the solutions of nonlinear FE computation covering a complete AC cycle to consider the geometry details, the rotor position, the armature currents, and the...
This paper presents an approach to realize an equivalent hardware representation of PM synchronous machines through a physics-based machine model for hardware-in-the-loop simulation of PWM drives. The equivalent hardware representation of the machine is achieved using a controllable load. The load current is controlled to be the same as the currents obtained over the physics-based model of the machine...
This paper presents an approach for performing the hardware-in-the-loop simulation of PWM-based drive utilizing the physics-based phase variable machine model to represent the actual machine. A 6-pole 2 hp permanent magnet synchronous machine is used as an example. The physics-based phase variable model of the sample machines is built with parameters (inductances, flux linkages, and the cogging torque)...
The physics-based phase variable model has been developed for several types of machines and transformers. The parameters (inductance/flux linkage) of the physics-based phase variable model were determined using the solutions of field computation to actually reproduce their variations during the machine operation. The developed physics-based phase variable model has the advantage over the conventional...
In this paper, a novel direct torque control of doubly- fed wound rotor induction machines is studied. A rotor unity power factor based direct torque control strategy is proposed. By keeping the rotor power factor to be one, a switching-table- based hysteresis direct torque control system is built and the corresponding rotor voltage vector table is obtained. The feasibility of the proposed method...
In this paper, a novel direct torque control of doubly-fed wound rotor induction machines is proposed and applied to variable speed wind power generation systems. The proposed control strategy was developed based on the control of the rotor power factor. By keeping the rotor power factor equal to one, a switching-table-based hysteresis direct torque control system was built and the corresponding rotor...
An improved FE-based phase variable model for PM synchronous machines is developed. The developed model can be used dynamically for motor control applications. Previous models, developed earlier by these authors, consider the rotor position dependence of the inductances and the flux linkage due to the permanent magnets. In the improved model, the effect of core loss as well as its variation with the...
In this paper, a stator power factor adjustable direct torque control of doubly-fed induction machine is proposed. The selection of rotor voltage vectors is performed based on the torque and the stator inactive current. The control system is built and the rotor voltage vector table is given. The feasibility of the proposed control strategy is examined through Simulink simulation experiments. Good...
Available sensorless speed control strategy of doubly-fed induction machines uses the rotor flux to estimate the rotor position and speed. It fails around the synchronous speed due to the numerical errors of integration operation required by the rotor flux calculation. A novel control strategy is proposed in this paper. It uses the stator excitation current to estimate the rotor position and speed...
Active magnetic bearing is a promising candidate for next generation spindle motors of hard disk drives. In this paper, an iterative learning control scheme is proposed to suppress the rotor poison runout induced by the unbalanced forces in AMB. The ILC controller can produce the synchronous compensation force by iteratively "learning" rotor runout information. This compensation force makes...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.