Showing 71 - 80 of 11,233
This paper summarizes the operational performance results of the first grid-connected building integrated photovoltaic (BIPV) system installed in Colombia (in Bogotá, at 4°35′ latitude and 2.580m altitude) after two years of monitoring. The performance monitoring was carried out with a...
Persistent link: https://www.econbiz.de/10011046018
The Ministry of Energy and Mines of Nicaragua (MEM) is planning to launch in 2013 a massive replacement program of 2 million incandescent lamps with compact fluorescent lamps (CFLs). This paper explores the expected impacts on a 10 year basis (2013–2023) using cost/benefit analysis for...
Persistent link: https://www.econbiz.de/10011047485
In this paper a technical review of parallel operation of power electronics inverters for load sharing conditions in distributed generation (DG) network is presented. Emphasis is given to parallel operation of Active Power Filters (APFs) as they are widely used to mitigate load current...
Persistent link: https://www.econbiz.de/10011049177
Harmonics estimation methods are analyzed in presence of different power quality problems, namely voltage sags, voltage unbalance, voltage distortion and variations of power supply frequency. The harmonics detection algorithms are based on the instantaneous reactive power (IRP) theory, the...
Persistent link: https://www.econbiz.de/10011050522
Power converters play a vital role in the integration of wind power into the electrical grid. Variable-speed wind turbine generator systems have a considerable interest of application for grid connection at constant frequency. In this paper, comprehensive simulation studies are carried out with...
Persistent link: https://www.econbiz.de/10011053984
The massive electric power blackout in the northeastern US and Canada on August 14–15, 2003 catalyzed discussions about modernizing the US electricity grid. Industry sources suggested that investments of $50–100 billion would be needed. This work seeks to better understand an important piece...
Persistent link: https://www.econbiz.de/10011055504
Requirement of green supply with higher quality has been consumers’ demand around the globe. The electrical power system is expected to deliver undistorted sinusoidal rated voltage and current continuously at rated frequency to the consumers. This paper presents a comprehensive review of...
Persistent link: https://www.econbiz.de/10011077293
A hybrid method comprising a chaos synchronization (CS)-based detection scheme and an Extension Neural Network (ENN) classification algorithm is proposed for power quality monitoring and analysis. The new method can detect minor changes in signals of the power systems. Likewise, prominent...
Persistent link: https://www.econbiz.de/10011030695
The impact of wind turbines and photovoltaic systems on network operation and power quality (harmonics, and voltage fluctuations) is very important. The capability of the power system to absorb this perturbation is dependent on the fault level at the point of common coupling. The paper deals...
Persistent link: https://www.econbiz.de/10011030735
Electric power systems are among the greatest achievements of the last century. Today, important issues, such as an ever-increasing demand, the flexible and reliable integration of distributed generation or a growth in disturbing loads, must be borne in mind. In this context, smart grids play a...
Persistent link: https://www.econbiz.de/10011030880