TY - CONF
T1 - Towards a Transmission Line Limit Preserving Algorithm for Large-Scale Power System Equivalents
T2 - 48th Hawaii International Conference on System Sciences (HICSS)
Y1 - 2015/01//
A1 - Wonhyeok Jang
A1 - Saurav Mohapatra
A1 - Thomas J. Overbye
KW - CERTS
KW - reliability and markets
KW - RM11-001
KW - SuperOPF
AB - Power system equivalents have long been used for reducing the size of power systems networks. While there are a number of equivalencing methods, little attention has been paid on how to retain thermal line limits from the original system. This paper presents an approach to develop an equivalent network for a large scale power system that preserves the thermal line limits from the equivalenced lines. The proposed method is able to assign limits to equivalent lines with inexpensive computation and is operating point independent even with a loaded system. The algorithm is applied to create a backbone type equivalent system of the Eastern Interconnection in North America.
JF - 48th Hawaii International Conference on System Sciences (HICSS)
PB - IEEE
CY - Kauai, HI
UR - http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=7070147&refinements%3D4256109463%26filter%3DAND%28p_IS_Number%3A7069647%29
DO - 10.1109/HICSS.2015.332
ER -
TY - JOUR
T1 - Equivalent Line Limit Calculation for Power System Equivalent Networks
JF - IEEE Transactions on Power Systems
Y1 - 2014/
SP - 2338
EP - 2346
A1 - Saurav Mohapatra
A1 - Wonhyeok Jang
A1 - Thomas J. Overbye
KW - CERTS
KW - electricity markets
KW - power system reliability
KW - reliability and markets
KW - RM11-001
KW - SuperOPF
AB - This paper focuses on the relatively unexplored subject of creating limit-preserving equivalents (LPEs). There is a push to develop LPEs for power system interconnections to be used in markets and reliability studies. The equivalents that exist for these interconnections do not capture thermal limits of equivalent lines, which results in their transmission limits being significantly different from the original interconnection limits. Assigning noninfinite and nonzero limits to equivalent lines is the niche of this paper. This is done by considering an unloaded network, which is operating point independent. A solution method is developed and discussed, which is capable of assigning lower, best, and upper estimates for equivalent line limits and is proposed for use towards developing LPEs.
VL - 29
IS - 5
JO - IEEE Trans. Power Syst.
DO - 10.1109/TPWRS.2014.2300176
ER -
TY - CONF
T1 - Line limit preserving power system equivalent
T2 - 2013 IEEE Power and Energy Conference at Illinois (PECI 2013)
Y1 - 2013/02//
SP - 206
EP - 212
A1 - Wonhyeok Jang
A1 - Saurav Mohapatra
A1 - Thomas J. Overbye
A1 - Hao Zhu
KW - CERTS
KW - power systems
KW - reliability and markets
KW - RM11-001
KW - transmission networks
AB - A reduced order equivalent of a power system is a simplified model of the original system with the ability to preserve some key characteristics and to provide adequate fidelity in simulation studies with considerably reduced computational requirements. In this paper, an algorithm to construct an equivalent system with the ability to retain thermal line limits is presented. The application of Kron's reduction and power transfer distribution factor is used in the creation of the reduced system. The criteria for this method and its step-by-step procedure with the implementation to a small power system are described. Also, the result of its application to the IEEE 118 bus system is provided.
JF - 2013 IEEE Power and Energy Conference at Illinois (PECI 2013)
PB - IEEE
CY - Champaign, IL
SN - 978-1-4673-5601-5
DO - 10.1109/PECI.2013.6506059
ER -