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Due to the growing demand on electricity, how to improve the efficiency of equipment has become one of the critical issues in a thermal power plant. Related works reported that efficiency and availability depend heavily on high reliability and maintainability. Recently, the concept of e-maintenance has been introduced to reduce the cost of maintenance. In e-maintenance systems, the intelligent fault...
Although the financial crisis shrinks oil price, human as an entire race still face the future of a hot, flat and crowded world [1]. Therefore, a critical transformation from our traditional energy consumption manner of fossil fuel combustion must be made. After years of endeavor in research and experiment, a number of Renewable Energy Sources (RES) has already become technically available as alternatives...
The Institute of Electrical and Electronic Engineers traces its history to the founding of the American Institute of Electrical Engineers in the spring of 1884. We know that the AIEE included such notables as Thomas Edison and Alexander Graham Bell, but who were some of the other founders and what technologies did they bring to the organization? This paper attempts to shed more light on these questions...
We discuss potential competitive effects of regulating carbon emissions in a transmission constrained electricity market. We compare two regulatory instruments, renewable portfolio standards and taxing emmissions. We derive general conclusions about impacts on prices and output on a three node network. We find that renewable portfolio standards increase the market power of nonpolluting generators...
This paper discusses transmission pricing and planning in the newly created regional electricity market in central America, the first in the world to implement a regional "jurisdiction" where a regulatory commission operates. The regional operator, regulatory framework and market rules, accompany the infrastructure of a regional network that adds to the existing inter-connectors a new 230...
This paper explains the way in which the current U.S. electric system contains insufficient incentives for long-term investments in transmission. Moreover, it highlights some key issues that should be considered to improve these investment incentives. The paper shows that, under the current U.S. transmission system, independent merchant investors, transmission rights' holders, and generation firms...
The paper analyses structural changes in deregulated electric power systems (EPS), which should take place in the future if the current trends and conditions remain. The circumstances are considered which define the current EPS functioning and its future structural changes. The mechanism of the restructuring and the boundary conditions, which will start the mechanism, are described.
This paper presents the effect of distributed generation (DG) in voltage variation and losses on very long distribution line with multiple voltage regulator. This paper considers the operation of DG effected voltage along distribution and power loss when varying load. From this study the operation of DG has effected to voltage along the very long distribution line depended on load varying and location...
Locational marginal prices (LMP) are important pricing signals for the participants of competitive electricity markets, as the effects of transmission losses and binding constraints are embedded in LMPs. This paper presents a software tool that evaluates the nodal marginal prices considering losses and congestion. The initial dispatch is based on all the electricity transactions negotiated in the...
This paper discusses issue of maximizing profit while operating an industrial power plant under variable spot price (SP) of electricity and load demand (LD). Such a plant can be connected to a power grid by a tie line on which power can flow in both directions. In a Liberalised Electricity Environment (LEE) an industrial plant manager determines least costly operating points for its own generators...
In electricity market, the power transactions needs to be executed under strict physical and other constraints, such as transmission congestion which may lead to the decrease of market efficiency. In the paper, under considering transmission congestion, it establishes the model that reflects market transaction, including generator output and sale price. Then it gives index system which is used to...
Steadily increasing needs for electrical power, progress in power deregulation, tight construction constraints on new high voltage lines for long distance power transmission, and global environmental concerns have created increased interest in alternative energy (AE) generation. Hybrid combination of AE sources can significantly improve their reliability and better deliver power to customer loads...
As wind penetration levels increase, the effects on the electricity system increase, and therefore the technical characteristics of the wind generation become more important. In addition, many modern wind turbines could in principle behave unlike conventional synchronous generators, raising new problems and perhaps providing new benefits to the system. Electricity system operators are responsible...
Distributed generation (DG) is finding its way into the worldwide distribution networks very rapidly. As the existing networks were not created for this new structure of electricity production, the preservation of a reliable network operation and a high level of power quality is a big challenge for all network operators. In a study conducted by the University of Erlangen and the Erlanger Stadtwerke...
Spinning Reserve (SR) is one of the ancillary services which is essential to satisfy system security constraints when the power system faces with a contingency. In this paper, emergency demand response program as one of the incentive-based demand response programs is implemented as a source of spinning reserve. In this regard, certain numbers of demands are selected according to a sensitivity analysis,...
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