TY - GEN
T1 - Towards a smart distribution transformer for smart grid
AU - Kang, Taeyong
AU - Essakiappan, Somasundaram
AU - Enjeti, Prasad
AU - Choi, Sewan
N1 - Publisher Copyright:
© 2015 Korean Institute of Power Electronics.
PY - 2015/7/27
Y1 - 2015/7/27
N2 - In this paper, a smart distribution transformer which addresses power quality issues in the electrical power distribution system is presented. The proposed system is comprised of a line frequency transformer connected to a power electronic converter that is'auto-connected' on the secondary side. The auto-connection is facilitated by the use of a high-frequency (HF) / medium frequency (MF) transformer. A simplified strategy to compensate for voltage sags, swells, and distortions on the grid side, by providing continuous ac voltage regulation, is discussed. When a voltage disturbance event occurs, the power electronic converter generates a compensating voltage, which is vector-added to the grid voltage in order to regulate the output voltage supplied to the load. The smart distribution transformer will satisfy the various needs of the present and future distribution smart grid such as improved availability, equipment protection, and resilience. This paper provides detailed analysis, simulation results and experimental results from a scaled down laboratory prototype rated 200 W are also presented to validate the operation of the proposed smart distribution transformer.
AB - In this paper, a smart distribution transformer which addresses power quality issues in the electrical power distribution system is presented. The proposed system is comprised of a line frequency transformer connected to a power electronic converter that is'auto-connected' on the secondary side. The auto-connection is facilitated by the use of a high-frequency (HF) / medium frequency (MF) transformer. A simplified strategy to compensate for voltage sags, swells, and distortions on the grid side, by providing continuous ac voltage regulation, is discussed. When a voltage disturbance event occurs, the power electronic converter generates a compensating voltage, which is vector-added to the grid voltage in order to regulate the output voltage supplied to the load. The smart distribution transformer will satisfy the various needs of the present and future distribution smart grid such as improved availability, equipment protection, and resilience. This paper provides detailed analysis, simulation results and experimental results from a scaled down laboratory prototype rated 200 W are also presented to validate the operation of the proposed smart distribution transformer.
KW - partial power processing
KW - phase-shift modulation
KW - power electronic transformer
KW - voltage sag / swell
UR - https://www.scopus.com/pages/publications/84961966623
U2 - 10.1109/ICPE.2015.7168052
DO - 10.1109/ICPE.2015.7168052
M3 - Conference contribution
AN - SCOPUS:84961966623
T3 - 9th International Conference on Power Electronics - ECCE Asia: "Green World with Power Electronics", ICPE 2015-ECCE Asia
SP - 1997
EP - 2003
BT - 9th International Conference on Power Electronics - ECCE Asia
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 9th International Conference on Power Electronics - ECCE Asia, ICPE 2015-ECCE Asia
Y2 - 1 June 2015 through 5 June 2015
ER -