Power Transmission Articles
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Fuel reduction potential of energy management for vehicular electric power systems
In the near future a significant increase in electric power consumption in vehicles is to be expected. To limit the associated increase in fuel consumption and exhaust emissions, smart strategies for the generation, storage/retrieval, distribution and consumption of the electric power can be used. This paper considers a vehicle configuration with a conventional drive train. Two energy management ...
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Set values for a power-split hybrid electric vehicle through numerical optimisation
This paper deals with the determination of set values for the real-time control of a power-split Hybrid Electric Vehicle (HEV). Different programming problems are formulated for the operating modes 'hybrid propulsion', 'electrical propulsion' and 'regenerative braking'. Numerically robust solution procedures are developed and applied to these problems. The resulting set values for the power ...
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Flexible AC Transmission Systems (FACTS) controllers: an overview
Flexible AC Transmission Systems (FACTS) controllers have been used in power systems since the 1970s with the objective of improving system dynamic performance. Due to the environmental, right-of-way, and cost problems in both bundled and unbundled power systems, many transmission lines have been forced to operate at almost their full capacities worldwide. FACTS controllers enhance the static ...
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On limits for wind power generation
The amount of wind power in the world increases fast. The background for this development is improved technology, decreased costs for the units and an increased concern of the environmental problems of competing technologies such as fossil fuels. For the future, it is now interesting to evaluate where the limits are for wind power generation, and which points are crucial. Since there is no power ...
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Risk assessment of catastrophic failures in electric power systems
The declining reliability of the US electric power system is raising major concerns among both politicians and power engineers in the USA. One of the reasons put forward by the North Electric Reliability Council (NERC) is the detrimental role played by the protection systems during large disturbances, which tend to help the perturbations to propagate through over-tripping of fault free system ...
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Coming In Out of the Cold: Hybrids Put to the Test
Untitled Document Point Roberts, WA, Delta B.C.- May 25, 2004 With gas prices reaching an all time high and not much promise of an end in sight, hybrid technology is falling under the lens of some careful scrutiny these days with investors. In a recent article in MITs Technology Review, author Peter Fairley estimates though buyers would have to pay more ...
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Interregional power transmission: a component in planning for renewable energy technologies
We discuss the role played by interregional power transmission on the basis of recent scenario work. In a project dealing with long-term planning for energy efficiency and renewable energy in Europe [described thoroughly in 1-4], we modelled a scenario for the present 15 EU countries' energy system in 2050. The basis for the scenario is the concept of "fair pricing" for energy services, meaning ...
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Development of Pre-Turbo Catalyst for Natural Gas Engines
Distributed power generation is an efficient method for reducing CO2 emissions through the elimination of transmission losses. Co-generation has similar benefits with higher thermal efficiency. Natural gas engines are very popular for these applications. Unfortunately, these engines emit significant levels of methane, which is a greenhouse gas. Reduction of methane emissions would greatly ...
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