Improvement of Three-Phase Unbalance Due to Connection of Dispersed Generator by Damper Windings of Synchronous Generator

2013 ◽  
Vol 186 (1) ◽  
pp. 43-50
Author(s):  
Junya Matsuki ◽  
Hisao Taoka ◽  
Yasuhiro Hayashi ◽  
Shigeru Iwamoto ◽  
Akihiro Daikoku
Keyword(s):  
Synchronous Generator ◽  
Three Phase ◽  
Damper Windings

Improvement of Three-phase Unbalance due to Connection of Dispersed Generator by Damper Windings of Synchronous Generator

2011 ◽  
Vol 131 (9) ◽  
pp. 724-729
Author(s):  
Junya Matsuki ◽  
Hisao Taoka ◽  
Yasuhiro Hayashi ◽  
Shigeru Iwamoto ◽  
Akihiro Daikoku
Keyword(s):  
Synchronous Generator ◽  
Three Phase ◽  
Damper Windings

Design and implementation of FLC system for fault ride-through capability enhancement in PMSG-wind systems

2020 ◽  
pp. 0309524X2098177
Author(s):  
Mohamed Metwally Mahmoud ◽  
Hossam S Salama ◽  
Mohamed M Aly ◽  
Abdel-Moamen M Abdel-Rahim
Keyword(s):  
Fuzzy Logic Controller ◽  
Synchronous Generator ◽  
Electrical Network ◽  
Electricity Grid ◽  
Wind Energy Generation ◽  
Fault Ride Through ◽  
Three Phase ◽  
Hybrid Solution ◽  
Pi Controllers ◽  
Grid Side

Fault ride-through (FRT) capability enhancement for the growth of renewable energy generators has become a crucial issue for their incorporation into the electricity grid to provide secure, reliable, and efficient electricity. This paper presents a new FRT capability scheme for a permanent magnet synchronous generator (PMSG)-based wind energy generation system using a hybrid solution. The hybrid solution is a combination of a braking chopper (BC) and a fuzzy logic controller (FLC). All proportional-integral (PI) controllers which control the generator and grid side converters are replaced with FLC. Moreover, a BC system is connected to the dc link to improve the dynamic response of the PMSG during fault conditions. The PMSG was evaluated on a three-phase fault that occurs on an electrical network in three scenarios. In the first two scenarios, a BC is used with a PI controller and FLC respectively. While the third scenario uses only FLC without a BC. The obtained results showed that the suggested solution can not only enhance the FRT capability of the PMSG but also can diminish the occurrence of hardware systems and reduce their impact on the PMSG system. The simulation tests are performed using MATLAB/SIMULINK software.

The Establishment of Time-Varying Parameter Model of the Synchronous Generator Loss of Field

2014 ◽  
Vol 672-674 ◽  
pp. 1238-1243
Author(s):  
Yan Ling Lv ◽  
Hong Zhe Bai ◽  
Wen Hai Chen ◽  
Chong Teng
Keyword(s):  
Simulation Analysis ◽  
Synchronous Generator ◽  
Time Varying ◽  
Mathematical Operation ◽  
First Order ◽  
Leakage Field ◽  
Asynchronous Operation ◽  
Verification Methods ◽  
Time Varying Parameter ◽  
Damper Windings

When synchronous generator operates steadily, the slip remains essentially unchanged, and the traditional first-order mathematical model can be used to analyze its operating procedures. But when it occurs asynchronously failure, the traditional model of a first-order mathematical operation can no longer be used accurately to analyze its state. This paper establishes time-varying parameter model considering the rotor eddy based on mutual leakage field winding and straight shaft damper windings resistance, and uses simulation analysis and comparison of experimental verification methods to verify the correctness of the model for synchronous generator asynchronous operation, which provides a theoretical basis.

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