To meet the growing load demand and provide reliable power supply, competition is introduced in the operation of electrical power market. In this scenario, the generators are submitting their energy bids in different time blocks. The market power for the corresponding load demand is determined from the submitted generators bids. In this paper, the total production cost for the corresponding loa...

In power systems with high wind energy penetration, the conjunction of wind power fluctuations and power system inertia reduction can lead to large frequency excursions, where the operating reserves of conventional power generation may be insufficient to restore the power balance. With the aim of evaluating the demand-side contribution to frequency control, a complete process to determine criti...

The SNS has developed a standard power supply interface for the approximately 350 magnet power supplies in the SNS accumulator ring, Linac and transport lines. Power supply manufacturers are providing supplies compatible with the standard interface. The SNS standard consists of a VME based power supply controller module (PSC) and a power supply interface unit (PSI) that mounts on the power supp...

Including renewable energy sources as a larger component in electric power supply systems has become very important in recent years. The use of wind turbines to extract the kinetic energy of the air is one of the technologies with fastest growth (Danish [2003]). The main goal in a wind turbine is to maximize the power extracted from the wind, under safe operation constraints. The use of appropi...

Recently, the nanogenerators which can convert the mechanical energy into electricity by using piezoelectric materials have exhibited great potential in microscale power supply and sensor systems. In this paper, i provide a comprehensive review of the research progress in piezoelectric nanogenerators with different material. The fundamental piezoelectric theory and typical piezoelectric materia...

In January 2012, the Sierra Club and the Kosovo Institute for Development Policy (INDEP) issued a report entitled Re-evaluating Kosovo’s Least Cost Electricity Option (Sierra Club/INDEP Report). 1 This report evaluated the World Bank’s proposed Kosovo Power Project, as described in the Bank’s December 2011 study, Development and Evaluation of Power Supply Options for Kosovo: A Background Paper ...

Application of individual distributed generators can cause as many problems as it may solve. A better way to realize the emerging potential of distributed generation is to take a system approach which views generation and associated loads as a subsystem or a “microgrid”. During disturbances, the generation and corresponding loads can separate from the distribution system to isolate the microgri...