The Novel Fault Analysis Method of the Power Grid with Inverter Interfaced Distribution Generators
The special fault current characteristics of inverter interfaced distribution generator (IIDG) make the conventional fault analysis method based on synchronous generator not applicable to a power grid with such IIDGs. In order to address this issue, according to the special fault current characteristics of IIDG, the problems of conventional fault analysis method when it is applied for the power grid with IIDGs are pointed out firstly. Based on it, a novel fault analysis method of the power grid with IIDGs is proposed. Lots of simulation cases show that the proposed fault analysis method has high calculation accuracy, which can meet the requirements of short-circuit calculation of the power grid and setting calculation of relay protection.
S. Alepuz, A. Calle, S. Busquets-Monge, S. Kouro, B. Wu, Use of stored energy in PMSG
rotor inertia for low voltage ride-through in back-to-back NPC converter based wind
power systems, IEEE Transactions on Industrial Electronics, Vol. 60, Issue 5, 2013, pp.
W. Zhang, D. Xu, X. Li, R. Xie, H. Li, D. Dong, C. Sun, M. Chen, Seamless transfer
control strategy for fuel cell uninterruptible power supply system, IEEE Transactions on
Power Electronics, Vol. 28, Issue 2, 2013, pp. 717–729.
Y. Gu, W. Li, Y. Zhao, B. Yang, C. Li, X. He, Transformerless inverter with virtual DC
bus concept for cost-effective grid-connected PV power systems, IEEE Transactions on
Power Electronics, Vol. 28, Issue 2, 2013, pp. 793–805.
V. Calderaro, V. Galdi, A. Piccolo, P. Siano, A Petri net based protection monitoring
system for distribution networks with distributed generation, Electric Power Systems
Research, Vol. 79, Issue 9, 2009, pp. 1300–1307.
A.F. Naiem, Y. Hegazy, A.Y. Abdelaziz, M.A. Elsharkawy, A classification technique for
recloser-fuse coordination in distribution systems with distributed generation, IEEE
Transaction on Power Delivery, Vol. 27, Issue 1, 2012, pp. 176–185.
H. Wan, K.K. Li, K.P. Wong, An adaptive multiagent approach to protection relay
coordination with distributed generators in industrial power distribution system, IEEE
Transaction on Industrial Application, Vol. 46, Issue 5, 2010, pp. 2118–2124.
X. Kong, Z. Zhang, X. Yin, Fault current study of inverter interfaced distributed generators,
The Distributed Generation and Alternative Energy Journal, to be published in 2015.
X. Fu, Decoupling phase domain method for fault analysis of distribution system with
distributed generation (in Chinese), Electric Power Automation Equipment, Vol. 29, Issue
, 2009, pp. 19–23.
S. Wang, X. Jiang, C. Wang, A superposition method of fault analysis for distribution
systems containing distributed generations (in Chinese), Automation of Electric Power
Systems, Vol. 32, Issue 5, 2008, pp. 38–42.
M.E. Baran, I. EI-Markaby, Fault analysis on distribution feeders with distributed generators,
IEEE Transaction on Power Systems, Vol. 20, Issue 4, 2005, pp. 1757–1764.
C. Wang, X. Sun, An improved short circuit calculation method for distribution network
with distributed generations (in Chinese), Automation of Electric Power Systems, Vol. 36,
Issue 23, 2012, pp. 54–58.
Technical rule for photovoltaic power station connected to power systems, Q/GDW
-2011, May 2011.
Z. Wu, G. Wang, H. Li, G. Pan, X. Gao, Fault Characteristics analysis of distribution
networks considering control scheme of inverter interfaced distributed network (in
Chinese), Automation of Electric Power Systems, Vol. 36, Issue 18, 2012, pp. 92–96+108.