A Grid Voltage Measurement Method for Wind Power Systems during Grid Fault Conditions

Cheol-Hee Yoo, Il-Yop Chung, Hyun-Jae Yoo and Sung-Soo Hong
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Cheol-Hee Yoo: School of Electrical Engineering, Kookmin University, 861-1, Jeongneung-dong, Seongbuk-gu, Seoul 136-702, Korea
Il-Yop Chung: School of Electrical Engineering, Kookmin University, 861-1, Jeongneung-dong, Seongbuk-gu, Seoul 136-702, Korea
Hyun-Jae Yoo: Samsung Heavy Industries, 493 Banweol-dong, Hwasung, Gyoenggi-do 445-330, Korea
Sung-Soo Hong: School of Electrical Engineering, Kookmin University, 861-1, Jeongneung-dong, Seongbuk-gu, Seoul 136-702, Korea

Energies, 2014, vol. 7, issue 11, 1-14

Abstract: Grid codes in many countries require low-voltage ride-through (LVRT) capability to maintain power system stability and reliability during grid fault conditions. To meet the LVRT requirement, wind power systems must stay connected to the grid and also supply reactive currents to the grid to support the recovery from fault voltages. This paper presents a new fault detection method and inverter control scheme to improve the LVRT capability for full-scale permanent magnet synchronous generator (PMSG) wind power systems. Fast fault detection can help the wind power systems maintain the DC-link voltage in a safe region. The proposed fault detection method is based on on-line adaptive parameter estimation. The performance of the proposed method is verified in comparison to the conventional voltage measurement method defined in the IEC 61400-21 standard.

Keywords: LVRT; voltage measurement; wind power system; grid codes (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2014
References: View complete reference list from CitEc
Citations: View citations in EconPapers (2)

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