Implementation and design non-linear controller for stand-alone generator

Dec 1, 2020

Journal Periodicals of Engineering and Natural Sciences (PEN)

Publisher Periodicals of Engineering and Natural Sciences (PEN)

Issue 4

Volume 8

This article describes the implementation and design of a non-linear controller for a stand-alone generator which has a DC motor as a prime mover based on input-output feedback linearization (FL) technique. While in the grids-connected synchronous generator the attention is focused on the load angle as stability assessment, the speed and terminal voltage is the main effective state in stand-alone generators. Therefore, the FL robust control design method is utilized to truck the desired speed and terminal voltage. First, a non-linear mathematical model is derived for the synchronous generator with a dc motor as a prime mover then input-output FL is applied to this non-linear model to make it linear. The tracking control low of the linearized model is designed using a pole placement technique. For verifying the efficiency and performance of the system, several tests were conducted in the Matlab simulation with some

Artificial Intelligent Control of Permanent Magnet Synchronous Generator Based Wind Energy Conversion System

Jan 4, 2019

Journal Kirkuk University Journal for Scientific Studies

Publisher Kirkuk University Journal for Scientific Studies

Issue 2

Volume 14

In this work new maximum power extracted architecture is proposed for wind turbine generator. Adaptive network based fuzzy inference system (ANFIS) is used to precisely estimate the rotor angle and speed which is necessary for vector control in order to forces the generator to track maximum power using variable speed operation generator. In this algorithm the separate control of the torque from the flux make the control of a generator operation with variable speed more efficient. The ANFIS network is trained off line from the normal operation of the permanent magnet generator.

Improved torque in PM brushless motors with minimum difference in slot number and pole number

Dec 11, 2012

Journal Int. J. Power and Energy Conversion

Publisher Int. J. Power and Energy Conversion

Issue 4

Volume 3

This paper presents design, modelling and prototyping of three-phase permanent-magnet brushless machines having a fractional slot to pole ratio. In particular, permanent magnet brushless machines which exhibits slot number and pole number differ by either ±2 or ±1 will be considered. Such small difference in slot and pole numbers will potentially improve motor characteristics and subsequently result in better motor performance. Having fractional slot-pole number motors may also facilitate the deployment of double-layer windings or single-layer windings in order to simplify the manufacturing process. Finite-element methods are first used to predict the flux-linkage, back-emf and cogging torque waveforms, and they are shown to be in good agreement with the measured results. Two prototypes are built, the first motor has 12-slot/10-pole and the other motor has 9-slot/10-pole for test and validations. It is observed that the unity difference in 9-slot/10-pole motor would produce more trapezoidal phase back-emf waveform, hence, slightly higher average torque output with smaller torque ripples, in comparison with that found in 12-slot/10-pole motor.