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A study on distributed optimal power flow
Ross,Baldick,Kim, Bal-ho Research Institute for Science & Technology HONG-I 1997 Hongik Journal of Science and Technology Vol.1 No.-
We present an approach to parallelizing optimal power flow (OPF) that is suitable for coarse-grained distributed implementation and is applicable to very large inter-connected power systems. The proposed distributed scheme can be used to coordinate a heterogeneous collection of utilities. Three mathermatical decomposition coordination methods are introduced to implement the proposed distributed scheme : the Auxiliary Problem Principle(APP), the Predictor-Corrector Proximal Multiplier Method (PCPM), and the Alternating Direction Method (ADM). We demonstrate the approach on several medium size systems, 9including IEEE Test System and parts of the ERCOT system
Hur, Don,Baldick, Ross The Korean Institute of Electrical Engineers 2014 Journal of Electrical Engineering & Technology Vol.9 No.3
The proposed technical work attempts to compare the two key technologies of power distribution, i.e. direct current (DC) and alternating current (AC) in a fiscal manner. The DC versus AC debate has been around since the earliest days of electric power. Here, at least four types of a low voltage DC (LVDC) distribution are examined as an alternative to the existing medium voltage AC (MVAC) distribution with an economic assessment technique for a project investment. Besides, the sensitivity analysis will be incorporated in the overall economic analysis model to cover uncertainties of the input data. A detailed feasibility study indicates that many of the common benefits claimed for an LVDC distribution will continue to grow more profoundly as it is foreseen to arise with the increased integration of renewable energy sources and the proliferation of energy storage associated with the enhanced utilization of uninterruptible power supply (UPS) systems.
Don Hur,Ross Baldick 대한전기학회 2014 Journal of Electrical Engineering & Technology Vol.9 No.3
The proposed technical work attempts to compare the two key technologies of power distribution, i.e. direct current (DC) and alternating current (AC) in a fiscal manner. The DC versus AC debate has been around since the earliest days of electric power. Here, at least four types of a low voltage DC (LVDC) distribution are examined as an alternative to the existing medium voltage AC (MVAC) distribution with an economic assessment technique for a project investment. Besides, the sensitivity analysis will be incorporated in the overall economic analysis model to cover uncertainties of the input data. A detailed feasibility study indicates that many of the common benefits claimed for an LVDC distribution will continue to grow more profoundly as it is foreseen to arise with the increased integration of renewable energy sources and the proliferation of energy storage associated with the enhanced utilization of uninterruptible power supply (UPS) systems.
Shin, Hunyoung,Lee, Duehee,Baldick, Ross IEEE 2018 IEEE transactions on sustainable energy Vol.9 No.2
<P>This paper provides a comprehensive analysis of how the correlation between wind power and electricity prices affects the offer strategies of wind power producers (WPPs). In a market that has a high penetration of wind energy, the correlation can be noticeable and thus should be considered by the WPPs when building offer strategies. First, this paper aims to build an advanced offer curve that considers the joint information of wind power and real-time (RT) prices. Then, we explore the sensitivity of the expected profit, value at risk (VaR), and conditional value at risk (CVaR) for the advanced offer curves to the probabilistic parameters of wind power and RT prices. We find that an offer curve which reflects this correlation generally results in a small improvement in expected profit, but a meaningful reduction in risks. The benefits of the advanced offer curves increase as the correlation becomes more negative or the variances of wind power and prices increase.</P>
Sequential Outage Checkers for Analyzing Cascading Outages and Preventing Large Blackouts
Jin Hur,Manho Joung,Ross Baldick 대한전기학회 2011 Journal of Electrical Engineering & Technology Vol.6 No.5
This paper presents the use of sequential outage checkers to identify the potential cascading processes that might lead to large blackouts. In order to analyze cascading outages caused by a combination of thermal overloads, low voltages, and under-frequencies following an initial disturbance, sequential outage checkers are proposed. The proposed sequential outage checkers are verified using the AEP 9-bus system, New England 39-bus system, and IEEE 118-bus system.
Sequential Outage Checkers for Analyzing Cascading Outages and Preventing Large Blackouts
Hur, Jin,Joung, Man-Ho,Baldick, Ross The Korean Institute of Electrical Engineers 2011 Journal of Electrical Engineering & Technology Vol.6 No.5
This paper presents the use of sequential outage checkers to identify the potential cascading processes that might lead to large blackouts. In order to analyze cascading outages caused by a combination of thermal overloads, low voltages, and under-frequencies following an initial disturbance, sequential outage checkers are proposed. The proposed sequential outage checkers are verified using the AEP 9-bus system, New England 39-bus system, and IEEE 118-bus system.