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A common practice for the Ex Post LMP calculation at a number of US ISOs uses a small constant range, typically from -2.0 MW to +0.1 MW, as each generator's lower and upper bounds. However, this paper shows that this common practice lacks theoretic justification and may lead to inconsistent results. For example, if the ex post dispatch results are identical to the ex ante dispatch schedules, it is...
This paper presented a marginal method allocating transmission losses to bilateral exchanges in the context of bilateral trading, based on the special relation between marginal loss comparative values for different slack buses. The advantage of this method is that the sharing results are irrelevant to the selection of slack bus, which is able to intuitively reflect the transmission distance of bilateral...
Payment for reactive power services is a part of generator revenue in most established electricity markets today. However such payments do not have a sound technical basis, the critical role that dynamic sources of reactive power play in maintaining voltage stability of the power system must be taken into account. This paper proposes a new method for valuation of reactive power in restructured power...
Payment for reactive power services is a part of generator revenue in most established electricity markets today. However such payments do not have a sound technical basis, the critical role that dynamic sources of reactive power play in maintaining voltage stability of the power system must be taken into account. This paper proposes a new method for valuation of reactive power in restructured power...
Deregulation of the electricity industry aims at creating a competitive market to trade electricity, which generates a host of new technical challenges to market participants and power system researchers. One of the major challenge is to accurately gauge the transfer capability remaining in the system for further transactions, which is termed available transfer capability (ATC). There are different...
This paper presents a multi-year transmission expansion planning (TEP) model which considers the transmission congestion and the impact of generation investment cost in the planning horizon. The Benders decomposition approach is utilized which decomposes TEP into a master problem and two subproblems representing security and optimal operation. The operation cost due to congestion (OCC) is considered...
For isolated power systems, an efficient and effective ancillary services market is one of the most important tools to ensures the system security and service quality. It is recognized that pumped storage units can play a unique role in the operation of isolated power systems. As part of the introduction of the ancillary services for Taiwan, a study was performed to identify the role and value of...
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