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speed estimation

Improved speed estimation in sensorless PM brushless AC drives

Improved speed estimation in sensorless PM brushless AC drives

... the speed of a sensorless BLAC motor drive have been implemented and ...the estimation of the average speed from the differential of the rotor position is adequate for steady-state operation, phase ...

10

Speed Estimation of an Induction motor using Model Reference Adaptive Control

Speed Estimation of an Induction motor using Model Reference Adaptive Control

... the speed of an electrical drives, especially induction motors as they are considered to be the workhorses in many ...sensorless speed control of an induction motor by the use of vector control ...the ...

8

PMSM sensorless control using back-EMF based position and speed estimation

PMSM sensorless control using back-EMF based position and speed estimation

... and Speed Estimation” and found that it has comply the partial fulfillment for awarding the degree of Bachelor of Electrical Engineering (Industrial Power)” ...

24

An Image Processing Based Method For Vehicle Speed Estimation

An Image Processing Based Method For Vehicle Speed Estimation

... the speed of a ...color, speed, direction and date and ...The speed of a vehicle is calculated using cross correlation between signals of two sensors, placed along the road at certain ...for ...

6

Sensor less Speed Estimation of an Foc Induction Motor Drive using Mras Speed Controller and Fuzzy Current Controller

Sensor less Speed Estimation of an Foc Induction Motor Drive using Mras Speed Controller and Fuzzy Current Controller

... The proposed method of MRAS which are based on PI current controller and Fuzzy current controller approach. MRAS methods are one of the most popular methods which are used for rotor speed estimation to ...

5

Improvement of Fast Initial Speed Estimation Using Fuzzy Logic Control Technique for Induction Motors in the Low Speed Range

Improvement of Fast Initial Speed Estimation Using Fuzzy Logic Control Technique for Induction Motors in the Low Speed Range

... the estimation of rotor speed at initially to IM with allowable period for low speed ...of speed with an observer of secondary flux is enhanced than controller of fuzzy as to obtain high ...

8

Vehicle Speed Estimation Using Headlight Trajectory Information in Night Time

Vehicle Speed Estimation Using Headlight Trajectory Information in Night Time

... Proposed system is to compute the speed of the vehicle during nighttime by detecting its headlight, tracking and pairing of headlight, and vehicle speed estimation. To detect the vehicle‟s headlight, ...

5

SODAR comparison methods for compatible wind speed estimation

SODAR comparison methods for compatible wind speed estimation

... wind speed over a range of speeds, that a background noise level can be found that causes degradation in the accuracy of the SODARs wind speed estimation, and that a lag effect can be identified for ...

204

VEHICLE SPEED ESTIMATION IN NIGHT TIME USING HEADLIGHT INFORMATION

VEHICLE SPEED ESTIMATION IN NIGHT TIME USING HEADLIGHT INFORMATION

... This paper presents an automatic traffic surveillance system to compute the speed of the vehicle externally using vehicles headlight information. The existing methods concentrate on the day time traffic whereas ...

8

A Sensorless Speed Estimation For Brushed Dc Motor At Start-Up

A Sensorless Speed Estimation For Brushed Dc Motor At Start-Up

... precise speed and position control, thus requiring a sensor ...provide speed and positional feedback to the system with additional ...sensorless speed and position measurement for brush DC ...

7

Speed Estimation In DC Motor Using Raspberry Pi Processor

Speed Estimation In DC Motor Using Raspberry Pi Processor

... the speed sensor, the processor gives the filtered noise free speed value and the related noise ...estimated speed values are compared in Fig ...of speed is closer to the speed ...

6

A Review of Speed Estimation Algorithms for Incremental Optical Encoder

A Review of Speed Estimation Algorithms for Incremental Optical Encoder

... In this review paper all different velocity estimation algorithms discussed and their merits and demerits are analysed. Optical Encoder are inexpensive tool for motor measurement but this kind of encoder readily ...

5

Modelling, control and sensorless speed estimation of micro wind turbines for deployment in Antarctica

Modelling, control and sensorless speed estimation of micro wind turbines for deployment in Antarctica

... tip speed ratio curve and the PM generator at- tached to the wind turbine, with the aim of introducing a system level description of the devices and to confirm/complement data available from ...sensorless ...

20

SENSORLESS SPEED ESTIMATION TECHNIQUE FOR PMSM

SENSORLESS SPEED ESTIMATION TECHNIQUE FOR PMSM

... 4. SPEED ESTIMATION OF PMSM USING MODEL REFENCE ADAPTIVE SYSTEM Estimation can be defined as the determination of constants or variables for any system, according to a performance level and based on ...

12

Speed Estimation of Sensorless Vector Controlled Induction Motor Drive using ANN

Speed Estimation of Sensorless Vector Controlled Induction Motor Drive using ANN

... new speed estimation algorithm using Artificial neural network is proposed for a sensorless vector control Induction motor ...the speed accurately and the system is made independent of stator ...

7

Speed Estimation of Three Phase Induction Motor Using Artificial Neural Network

Speed Estimation of Three Phase Induction Motor Using Artificial Neural Network

... the speed torque characteristics into the performance of the motor to the fullest ...of speed estimation and control of the induction motor for input voltage variation with and without input ...

5

Vehicle tracking and speed estimation for traffic surveillance

Vehicle tracking and speed estimation for traffic surveillance

... That being said, one aim is to create a system that not only tracks vehicles but subsequently calculates its speed. Velocity has a very simple formula and applying it in image processing should not be that ...

37

Moving Object Speed Estimation Method

Moving Object Speed Estimation Method

... the speed of vehicles. Because of shooting down from the top, the speed estimation by means of UAV can solve the shadowing problem that the traditional camera may ...

6

Image Based Vehicle Speed Estimation

Image Based Vehicle Speed Estimation

... In this paper, an imaged-based vehicle speed estimation method is developed using physics-based velocity theory. It consists of a video camera that is placed a fixed location for capturing images and then a ...

5

Sensorless Speed Estimation of PMSM near Zero Speed Using Online Short Time Fourier Transform Ridges

Sensorless Speed Estimation of PMSM near Zero Speed Using Online Short Time Fourier Transform Ridges

... rotor speed and ...rotor speed and position even at zero speed whereas other schemes ...frequency estimation scheme based on the short time Fourier transform ridges is proposed to detect the ...

5

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