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The electric power system is one of the most complex engineered systems. It is, thus, a challenge to design a market that is efficient, transparent, and provides the proper incentives to market participants. Existing market models employ constraint relaxations, which enable various constraints to be relaxed (violated) for a high penalty price. This paper examines the practice of allowing transmission...
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...
Spinning reserve (SR) is one of the most important resources used by system operators to maintain system security, but excess amount of SR which goes against economy must be avoided. A new unit commitment model is proposed in the paper, which adds expected customer interruption cost (ECOST) into the objective function. Thus a pretty tradeoff between system security and economy can be achieved while...
With scale spreading continually and components complicating gradually, security analysis to electric power grid had been a focus. Based on existing researches of electric power grid vulnerability, respectively definitions and new evaluation models of running state vulnerability and structural vulnerability were presented. Then a new evaluation thought combining intensity of state variable and structural...
Voltage control and reactive power support have been deeply investigated by the technical point of view. System operators and planners have developed complex control schemes, in order to achieve a secure and efficient operation. After the enforcement of market structures, new issues have appeared. Nowadays, the main subjects related with the reactive power management are: maintaining an adequate security...
Security constrained optimal power flow programs are important tools for ensuring correct dispatch of supply while respecting the many constraints imposed by the delivery system. In addition to getting the dispatch right, locational prices must be calculated with equal precision in order to infuse market participants with the proper incentives for operation and investment. In this paper we discuss...
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