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http://dx.doi.org/10.6113/JPE.2014.14.6.1081

Voltage Source Equipment for the Grid Fault Testing and Analysis of Total Harmonic Distortion According to PWM Methods  

Gwon, Jin-Su (Power Conversion and Control Research Center, Korea Electrotechnology Research Institute)
Kim, Chun-Sung (Power Conversion and Control Research Center, Korea Electrotechnology Research Institute)
Kang, Dae-Wook (Power Conversion and Control Research Center, Korea Electrotechnology Research Institute)
Park, Jung-Woo (Power Conversion and Control Research Center, Korea Electrotechnology Research Institute)
Kim, Sungshin (Department of Electrical Engineering, Pusan National University)
Publication Information
Journal of Power Electronics / v.14, no.6, 2014 , pp. 1081-1092 More about this Journal
Abstract
Renewable energy is being spotlighted as the electric power generating source for the next generation. Due to an increase in renewable energy systems in the grid system, their impact on the grid has become non-negligible. Thus, many countries in the world, including Europe, present their own grid codes for grid power conversion devices. In order to experiment with these grid codes, grid fault test equipment is required. This paper proposes both equipment and a control method, which are constructed with a 7-level cascaded H-bridge converter, that are capable of generating various grid faults. In addition, the Pulse Width Modulation (PWM) method for multilevel converters is compared and analyzed. The proposed structure, the control method, and the PWM method are verified through simulation and experimental results.
Keywords
Carrier-based space vector PWM; Cascaded multilevel converter; Voltage source equipment; Weak grid controller;
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Times Cited By KSCI : 7  (Citation Analysis)
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