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Wavelet Transform Based Methods For Fault Detection And Diagnosis Of Hvdc Transmission Systems, Zhongxuan Li
Wavelet Transform Based Methods For Fault Detection And Diagnosis Of Hvdc Transmission Systems, Zhongxuan Li
Theses and Dissertations
ABSTRACT
WAVELET TRANSFORM BASED METHODS FOR FAULT DETECTION AND DIAGNOSIS OF HVDC TRANSMISSION SYSTEMS
by
Zhonxguan Li
The University of Wisconsin-Milwaukee, 2019
Under the Supervision of Professor Lingfeng Wang
High-voltage direct current (HVDC) is a key enabler in power system. HVDC offers a most efficient means of transmitting large amount of power. Applications of HVDC can improve the operation security, reliability performance and economy of power systems. Due to factors inside and outside the HVDC system, the system will experience various faults, which have infected HVDC system. VSC-HVDC is a HVDC transmission based on IGBT and PWM. VSC-HVDC direct current …
Wavelet Transform Based Methods For Fault Detection And Diagnosis Of Hvdc Transmission Systems, Zhongxuan Li
Wavelet Transform Based Methods For Fault Detection And Diagnosis Of Hvdc Transmission Systems, Zhongxuan Li
Theses and Dissertations
ABSTRACT
WAVELET TRANSFORM BASED METHODS FOR FAULT DETECTION AND DIAGNOSIS OF HVDC TRANSMISSION SYSTEMS
by
Zhonxguan Li
The University of Wisconsin-Milwaukee, 2019
Under the Supervision of Professor Lingfeng Wang
High-voltage direct current (HVDC) is a key enabler in power system. HVDC offers a most efficient means of transmitting large amount of power. Applications of HVDC can improve the operation security, reliability performance and economy of power systems. Due to factors inside and outside the HVDC system, the system will experience various faults, which have infected HVDC system. VSC-HVDC is a HVDC transmission based on IGBT and PWM. VSC-HVDC direct current …
Hvdc Transmission System Reliability Evaluation Based On Condition-Dependent Failure Models Of Converters And Transformers, Zibo Wang
Theses and Dissertations
Wind energy, especially offshore wind energy, is the focus of policy for countries that want to make significant use of renewable energy. With the development of semiconductor technology, high voltage direct current (HVDC) technology is being widely used for the transmission of wind power from offshore windfarms to onshore power grids. The application of HVDC technology can benefit the power system in many ways, such as operation security, reliability performance and economy. With the increasing number of applications of HVDC, the reliability performance of HVDC plays an important role in the overall power system reliability. Although the reliability of HVDC …
Scr-Based Wind Energy Conversion Circuitry And Controls For Dc Distributed Wind Farms, Ravi Nanayakkara
Scr-Based Wind Energy Conversion Circuitry And Controls For Dc Distributed Wind Farms, Ravi Nanayakkara
Theses and Dissertations
The current state of art for electrical power generated by wind generators are in alternating current (AC). Wind farms distribute this power as 3-phase AC. There are inherent stability issues with AC power distribution. The grid power transfer capacity is limited by the distance and characteristic impedance of the lines. Furthermore, wind generators have to implement complicated, costly, and inefficient back-to-back converters to generate AC. AC distribution does not offer an easy integration of energy storage. To mitigate drawbacks with AC generation and distribution, direct current (DC) generation and high voltage direct current (HVDC) distribution for the wind farms is …