flexible ac transmission systems (facts) controllers with its ability to directly control the power flow can offer great opportunities in modern power system, allowing better and safer operation of transmission network. in this paper, in order to find type, size and location of facts devices in a power system a dedicated improved particle swarm optimization (dipso) algorithm is developed for de...

Power systems optimization is generally subject to the compromise between performance and cost. The 2021 Texas grid outage illustrates worldwide dangers for regional-centralized power grid, with comparable advantages safety flexibility distributed energy system. storage of household batteries helps balance load increase system stability flexibility. However, battery still not widely used today ...

In his autobiographical essay “The Ins and Outs of Late Twentieth Century Economics,” Duncan Foley (1999) observed that “economics in the late 1960s suffered from a classical scientific dilemma in that it had two theories, the microeconomic general equilibrium theory, and the macroeconomic Keynesian theory, each of which seemed to have considerable explanatory power in its own domain, but which...

in this paper, a hybrid solid oxide fuel cell (sofc) and micro gas turbine (mgt) power system is parametrically studied to evaluate the effect of different operating conditions. the sofc/mgt power system includes sofc reactor, combustion chamber, compressor and turbine units, and two heat exchangers. the effects of fuel utilization, temperature, and pressure are assessed on performance of the h...

in this paper, optimum location of power system stabilizers in order to damp inter-area oscillations has been investigated by using modal series method. nonlinear effects grow in dynamical behaviors of heavily loaded stressed power systems significantly. hence linear based methods and techniques no longer present clear and exact response of the systems. in this article by defining new nonlinear...

National Laboratory is an equal opportunity employer. This paper describes two stylized alternative visions in popular currency of how the power system might evolve to meet future requirements for the high quality electricity service that modern digital economies demand, a supergrids paradigm and a dispersed paradigm. Some of the economics of the dispersed vision are explored, and perspectives ...

Hybrid organizational forms such as franchise systems join two or more independent parties under a contract. The ability of each party to achieve its goals depend upon the relative bargaining power in the relationship established by the contract. Using transaction cost economics and Porter’s (1980) characterization of sources of bargaining power, this paper argues that the franchisor can make i...

In many European countries, natural gas-fired power plants are considered a possibility to quickly compensate the expected shortfall in electric energy supply. Increasing gasfired generation capacity would also increase the couplings and interactions between gas and electricity systems. So far, gas power plants participate in two different markets gas and electricity. Coupling these markets by ...