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.
This paper proposes a dual current-slope rotor position estimation and its relative sensorless closed-loop drive system for synchronous reluctance motors. First, the mathematical model of the synchronous reluctance motor is discussed. Then, a new rotor position/speed estimator of the synchronous reluctance motor is proposed. The proposed method uses dual current-slope to estimate the rotor position...
This work proposes an algorithm to control the torque of a switched reluctance machine (SRM). A 6/4 three phases SRM drive is controlled and simulated on PSCAD/EMTDC software. The machine is modeled using an analytical model that takes into consideration the non-linearity of the machine. The control is designed as a Model Predictive Control (MPC) using Discrete Space Vector Modulation (DSVM) with...
This paper proposes a modeling method for characterization of single-phase brushless dc (BLDC) fan motors in applications to information appliances. The nonlinear back-EMF induced by the rotor flux with stator winding is modeled by a look-up table. By parameter identification and computer simulation, this modeling method assists designers in waveform analysis and control loop design. Simulation results...
This paper presents a new control strategy for three-phase induction motor which includes independent speed & torque control loops and the current regulation thereby overcoming the limitation (i.e. sluggish response) of volts per hertz controlled industrial drives. For close-loop control, the feedback signals including the rotor speed, flux and torque are not measured directly but are estimated...
In this paper, a variable structure controller based on sliding-mode design is proposed for induction motors that propel electric vehicle drives. The underlying design concept is to endow the closed loop system with high performance dynamics for all possible speed ranges while maximizing power efficiency and keeping the required stator currents within the inverter ceiling limits. The proposed approach...
The original contribution of this paper is the direct use of a six switch inverter as the switching element of a multivariable sliding mode controller to achieve vector control for permanent magnet synchronous motor drives precisely realising a prescribed dynamic response to the rotor speed reference inputs. The extreme robustness against changes in the mechanical load parameters and external disturbance...
This paper investigates a modified direct torque control (DTC) scheme based on space vector modulation (SVM) for interior permanent magnet synchronous motor (IPMSM) drives. Closed-loop control of both the torque and stator flux linkage are achieved by using two proportional-integral (PI) controllers. The reference voltage vectors are generated by a SVM unit, which replaces the switching table in the...
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.