Multipolar double fed induction wind generator with a single phase secondary winding

Ribickis, Leonīds; Diļevs, Guntis; Levins, Nikolajs; Pugachevs, V.

doi:10.1109/epepemc.2008.4635528

Cited by 1 publication

(1 citation statement)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The project "Wind and Hydrogen Based Autonomous Energy Supply System" within possibility of use of the double fed induction generator [1][2][3] in the autonomous power supply system's wind turbine was investigated. This type of generators are popular for large wind turbines, since the power electronic converter consumes only 30% of the generator output power, but they have some disadvantages, regarding the construction features [4], and also low generator residual magnetism, which is insufficient to create voltage from the cold start, therefore the use of this type of generators in autonomous power supply system without connection to the power grid is inefficient [5].…”

Section: Introductionmentioning

confidence: 99%

Self-Excitation System for Synchronous Generator

Zaļeskis¹,

Raņķis²,

Prieditis³

2013

Electrical, Control and Communication Engineering

View full text Add to dashboard Cite

-Self-excitation for synchronous generator is described in the paper. The system is based on a buck converter input filter capacitor discharge through excitation winding of the generator. The buck converter is connected to the stator outputs through an uncontrollable diode rectifier, but excitation winding is used as a load. Input filter capacitor of the converter provides initial current pulse which magnetizes excitation system and produces the generator voltage increase, for this reason the capacitor is charged before self-excitation process starts.Results of the computer simulation and physical experiment are obtained and presented. These results show that the proposed self-excitation converter in conjunction with an input capacitor pre-charged from a low-power electronic generator actually magnetizes the generator excitation system therefore generator voltage and accordingly excitation current increases. Stabilization of generator output voltage occurs with a voltage surge, though its peak value slightly exceeds the reference one.The future investigation of the proposed self-excitation system may include definition of mathematical equations which describe transients in the generator's self-excitation mode and development of control methods for purpose of self-excitation process control without voltage peaks. The computer model also should be improved.

show abstract

Section: Introductionmentioning

confidence: 99%