Search results for " single-phase induction motor"

showing 3 items of 3 documents

Sensorless variable speed single-phase induction motor drive system based on direct rotor flux orientation

2012

The single-phase induction motor (SPIM) is one of the electrical machines more used in the World, and can be found in several fractional and sub-fractional horsepower applications in houses, offices, shoppings, farms, and industries. The introduction of more sophisticated applications has required the use of variable speed drives for SPIM, where the adoption of sensorless techniques is the more reasonable option for speed control due to the low cost of this electrical machine. A proposal for sensorless variable speed SPIM drive based on direct rotor field orientation techniques is presented in this paper. None transformation is used in order to eliminate the asymmetry of the stator windings…

Electronic speed controlComputer scienceRotor (electric)StatorPID controllerSettore ING-IND/32 - Convertitori Macchine E Azionamenti Elettricilaw.inventionControl theoryElectromagnetic coillawControl systemInverterSensorless Variable Speed Drives Single-Phase Induction Motor Direct Field OrientationInduction motor2012 XXth International Conference on Electrical Machines
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Sensorless variable speed single-phase induction motor drive system

2012

It is usual find single-phase induction motor (SPIM) in several house, office, shopping, farm, and industry applications, which are become each time more sophisticated and requiring variable speed drives. Considering the low cost of this machine, the adoption of sensorless speed control is the more reasonable option for SPIM drives. This paper presents a proposal for sensorless variable speed SPIM drive based on direct rotor field orientation techniques. An observer based on two independent linear close-loop control systems provides the estimation of the rotor flux and speed from the measurements of the stator currents and voltages. These estimatives are used by close-loop systems for speed…

Electronic speed controlStatorRotor (electric)Computer scienceAC powerSettore ING-IND/32 - Convertitori Macchine E Azionamenti ElettriciDirect Field Orientation Sensorless Single-Phase Induction Motor Variable Speed Driveslaw.inventionControl theorylawElectromagnetic coilControl systemInverterInduction motor
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A Flux and Speed Observer for Sensorless SPIM Applications

2010

It is usual to find single-phase induction motor (SPIM) in several house, office, shopping, farm, and industry appliances, which is become more sophisticated and requires the development of high performance alternatives to drive a SPIM. All proposed strategies to improve the performance SPIM need the evaluation of the rotational speed or position information. Since the use of conventional sensors to measure the rotational speed cannot be justified for SPIM applications, the adoption of a sensorless strategy is a more reasonable option for these cases. This paper presents a flux and speed observer for sensorless applications involving SPIMs. The performance of the proposed observer is verifi…

EngineeringObserver (quantum physics)business.industryControl theoryElectromagnetic coilTorqueControl engineeringRotational speedSettore ING-IND/32 - Convertitori Macchine E Azionamenti ElettricibusinessFlux observerInduction motorobserver sensorless single-phase induction motor speed estimation
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