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Deregulated electricity markets in the U.S. currently minimize total bid costs to select bids and their generation levels but determine payments based on market clearing prices. The inconsistency between auction and settlement mechanisms can lead to a significantly higher consumer payment. This gives rise to the “payment cost minimization,” an alternative auction mechanism that minimizes consumer...
Negotiation of secure bilateral transactions has become an important issue for better operation, planning and management of competitive electricity markets. In this paper, secure bilateral transactions have been determined with minimum deviations in economic generation schedule and real power losses for hybrid electricity markets. The generation pattern and real and reactive power loss has been obtained...
The deployment of plug-in hybrid vehicles (PHEVs) and micro-combined heat and power (μ-CHPs) technologies creates the opportunity for these units to be optimally operated under various control schemes to enhance electric grid operation. In addition, if vehicle-to-grid (V2G) and thermal storage features are considered, these embedded technologies could have even a greater impact on network performance...
A new optimal power flow (OPF) model accounts for electro-thermal coupling relationship is established based on electro-thermal coordination (ETC) concept in this paper This new OPF model organically combines the traditional OPF with heat balance equation (HBE) which reflects thermal dynamic process of transmission component. It considers the temperature limit of transmission component as its security...
Locational marginal price (LMP) is a fundamental principle in the majority of electricity markets and is increasingly being employed at a number of ISO's such as PJM, california ISO, etc. It is essential to obtain the accurate value of LMPs. This paper presents an OPF formulation with a composite dynamic load models which is a composite of ZIP and induction motor loads. An improved locational marginal...
This paper combines two previous techniques, reference independent LMP decomposition and fictitious nodal demand (FND), to achieve an improved LMP model. The combined model distributes system losses in each individual line such that there is no mismatch in every bus. Also, the reference independent LMP decomposition is still preserved..
Ireland has some of the most favourable wind conditions in the whole of Europe. Wind production, in the mainland as well as offshore, is expected to grow rapidly during the coming years, as evidenced by the fact that some 6000 MW of wind generation is currently awaiting connection to the grid onshore. Given the massive potential for the exploitation of renewable energy resources off the coast of Ireland,...
Electricity infrastructure touches us all - the key challenge, pertinent to this panel session, is to enable secure and very high-confidence sensing, communication and control of a heterogeneous, widely dispersed, yet globally interconnected system, which is a serious technological problem in any case. It is even more complex and difficult to control it for optimal efficiency and maximum benefit to...
Supplying a reliable, efficient, economic electrical service to all customers is the basic responsibility of utilities. However, increasing penetration of new customers in distribution grids as dispersed generation (DG), electric heating systems and electric vehicles (EV), makes conventional operation of energy supply systems difficult while meeting the aforementioned responsibility. Therefore, the...
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