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Wind turbine generation is rapidly becoming the preferred renewable source of electric energy. The amount of energy captured from a wind energy conversion system (WECS) depends not only on the prevailing wind at the site, but also on the control strategy used for the WECS. Modeling, control and simulation of a wind turbine conversion system connected to an isolated load are proposed. The wind turbine...
The impact of renewables to energy production is becoming more and more significant, but not only in positive terms. The type of electrical and thermal stresses occurring in electrical apparatus, especially insulation systems, due to nonconventional voltage waveforms, transients and loading conditions may affect considerably electrical asset reliability. This paper describes how renewable generation...
This paper presents the improved dynamic performance of the National Grid of Pakistan by the application of a 50(ind)/450(cap) MVAR SVC system at the 220/132kV New Kotlakhpat (NKLPT) Substation in Lahore — the first project of its nature in Pakistan. This paper demonstrates results from voltage stability studies carried out in PSSE using dynamic load models showing the voltage recovery without and...
The communications standard IEC 61850-5 identifies fast messages that perform high-speed automation, protection, and interlocking to meet or exceed a transmission time of 3 milliseconds as Type 1A, Performance Class P2/P3. Modern microprocessor-based devices and Ethernet networks routinely meet this requirement when everything is working as expected. One of the most important acceptance criteria (and...
In this paper, the effectiveness of Static Var Compensator (SVC) and Static Compensator (STATCOM) on power system transient stability enhancement is assessed by implementing controller design theory. The main circuit configuration and models of the devices are introduced in the work. The paper proposes a control scheme to increase the system damping and improve the system response; then employs Differential...
With today's oil and gas industry bustling with activity, there is an increased demand for electrical power. Due to the nature of this business, many of the electrical loads are in offshore remote locations. As a result, supplying power to such offshore locations is not an easy task. This paper compares the feasibility and economics of the HVAC and HVDC power transmission alternatives. A case study...
Ras Al-Kahir Industrial City, which is approximately 80km northwest of Jubail Industrial City on the eastern coast of Saudi Arabia, comprises of world-class complex of metal and minerals industries. To support such a huge industrial complex, a strong and reliable power network is planned by the Royal Commission in coordination with Saudi Electricity Company. The US engineering firm Bechtel Corporation...
Smart grids are fundamental to transform today's electricity grids to address growing demand, renewable intermittent and distributed generation, and environmental pressures. Microgrids are an integral part of the transformation. But, as in all transformations, there are challenges as well as opportunities. The purpose of this paper is to present several European microgrids, focusing on their relative...
In this research we designed an islanded house which is supposed to generate its own energy. The house is equipped with distributed generation sources, like microCHP and solar panels. The house is also equipped with heat and electricity buffers to store the generated energy. Another technology which is introduced to the house is the Power Router machine. Based on the islanded house model, different...
How can Smart Grids support the development of a new sustainable urban environment? Network infrastructures can play a key role in enabling innovative, sustainable and user-friendly urban services: energy efficiency, low carbon footprint systems and a city ‘more efficient to use’. Smart Grids and Smart metering enable services, for citizens and Public Administration, dedicated to building automation,...
GRID4EU is one of the biggest smart grid projects to be funded by the European Union (27 partners, €54M budget). It comprises 6 demonstrators. The French one is Nice Grid which is a pilot project on photovoltaic-powered neighborhoods funded by the French government and the European Union. Nice Grid is located in the city center and the industrial area of Carros, a medium-sized town close to Nice on...
This paper proposes an approach to optimally size storage system which will be used by a wind power producer who wants to bid in the Iberian day-ahead energy market. The proposed approach takes uncertainties of wind generation and market prices into consideration. The sizing problem will be treated as an optimization problem with an objective of maximizing the profit and it will be solved using Stochastic...
The power system in Guatemala is part of the long, interconnected network in Central America that runs from the south of Mexico to Panama. This power system is connected to Mexico in the north and to El Salvador in the south. The power system in El Salvador is connected to the rest of the Central American countries in the south, all the way to Panama. The Guatemalan power system is a transmission...
Substations — linking the transmission network (Super Grid) and the distribution network (Smart Grids) — will play a crucial role in the future extension of the energy network. The IEC 61850 standards suite is the most promising collection of standards for the design of substation communication and automation systems and has become accepted by utilities. Up to now there were no metering devices for...
Grid reconstruction after a blackout is a complex process mainly involving power system stability, grid observability and control. Now, with the introduction of embedded renewable generation and with the wide spread of Information and Communications Technologies (ICT), Transmission System Operators (TSO) are facing additional challenges during reconstruction due to uncontrolled generation, decrease...
The paper shows how Europe has successfully integrated some 70 GW of solar and a similar amount of wind power by means of regulating the access to grid for all renewable energy's generating units. It deals with possible critical situations in the distribution grid such as island formation, overload of equipment and voltage maintenance and also addresses critical fields in the transport grid such as...
Distance protection and fault location in series-compensated transmission lines are complex challenges for protection engineers. This paper presents a communication-aided distance protection and fault location algorithm for EHV series-compensated transmission lines based on Phasor Measurement Unit (PMU) and Synchrophasor Measurement techniques. The proposed algorithm utilizes the PMU to develop a...
Recently, thick haze and poisonous smoke has cloak the surrounding air in Malaysia due to the uncontrollable and unethical burning of nearby country. This devastating episode of open burning started in the year 1997 in Indonesia which deeply affected most of the ASEAN countries especially their neighbour Malaysia and Singapore. The Photovoltaic (PV) technology as an alternative means of energy generation...
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