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Renewable energy sources integration in power systems leaded to the development of new mandatory standards for integrated system operation. During grid faults in power supply network, wind turbines must face major challenge, imposed by strict grid codes, particularly Fault Ride — Through capability. In the event of a grid disturbance, the rotor of the wind turbine generator is susceptible to high...
This paper presents a harmonic study of different parallel photovoltaic (PV) systems connected to a low voltage distribution network to identify potential resonance between PV inverters and system impedance. LCL filters are commonly employed in PV inverters and recommended by IEEE 929–2000. These filters, however, by interacting with each other as well as with the system, may generate multiple harmonic...
The monitoring of the load assumes a fundamental role in contracting of locational economic amounts of the Transmission Network Use of System (TNUoS) tariff, in this way, it becomes attractive to use computational models of demand forecasting as tools, subsidizing more precise estimates of investments and enabling the attendance of the Reliability. In this context, the present work demonstrates a...
Capacitor banks (CBs) are used for reactive power compensation in electricity distribution systems. In order to achieve the best effect, CBs placement requires optimization. Metaheuristic computational intelligence algorithms are methods widely used in the literature for this purpose. This paper presents a parallel Particle Swarm Optimization algorithm for bus voltage optimization. The results of...
The loadbreak cutout control is most often performed from the zonal load dispatcher level. The system presented in this paper performs the remote control and permanent monitoring of some loadbreak cutouts which run on a 20kV power line. The monitoring and control is directly carried out by the zonal load dispatcher. This remote control alternative provides more operativity and safety in decision making...
Nowadays, more than ever, the renewable sources of energy are highly exploited in order to sustain the electricity consumption worldwide. The increasing presence of these renewable source's based power plants had actually changed the structure of the power system itself, leading to new challenges in terms of power system's operation. The photovoltaic conversion of the solar energy is of great interest...
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