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The large scale connection of power generation in distribution networks causes deregulation in power system networks. This paper focuses on studying the voltage changes at each node of the distribution network before and after the insertion of wind turbines as power generators, and also proposes two optimal voltage control methods in order to maintain a stable voltage profile. Results of the simulations...
Nowadays, smart grid for electrical power distribution is considered as one of the most important infrastructures enabling the consumer to interact with other stakeholders to reach technical and economic objectives. This interactivity is performed through the concept of agreements that are signed between different involved actors (utility operators, electrical energy producers, consumers, electrical...
Grounding systems are considered as an essential part of power systems since they are designed to protect them against fault currents according to some safety and power quality standards. When lightning strikes a substation or a transmission tower near the substation, high current generated by the stroke would flow into the grounding system of the substation and dissipate into the soil. The transient...
The expansion of the insertion of photovoltaic (PV) systems into distribution power systems causes a variety of problems in the operation power grid especially voltage variations. This paper focuses on the voltage changes on each node of the distribution network before and after the insertion of photovoltaic power sources, and uses two voltage control methods to maintain a stable voltage profile....
Plug-in Electrical Vehicles (PEVs) are nowadays increasingly penetrating the car market. Charging stations are becoming a lucrative business especially for the public parking lot owners where they can be installed and operated. PEVs can be used as energy storage elements during low demand and as energy sources during peak demand. Some technical problems related to the management of the charging stations...
Injected high magnitude currents into soil through grounding electrodes of high voltage direct current (HVDC) generate temperature rise in the electrode and the surrounding soil. Thermal instability influences greatly the soil behaviour when providing a safe design of ground electrodes is a main concern. In case of exceeding the allowed thermal limit of the electrode, it may get damaged and sometimes...
This paper presents the design of a MATLAB simulator of a hybrid renewable energy system applied for energy generation in rural regions. The system is simulated using MATLAB. It consists of a set of photovoltaic panels, a DFIG wind farm, a pumped water storage/generation station and it is designated to supply residential/industrial loads. A transmission line connects this system to the main power...
We address the topic of a unified controller for maximum power point tracking (MPPT) in distributed hybrid PV and wind energy systems. The power produced by a PV module depends on the solar irradiance and temperature. The power produced by a wind turbine depends on the wind speed. The maximum power controllers adaptively search and maintain operation at the maximum power point for changing irradiance...
We address the topic of a unified controller for Maximum Power Point Tracking (MPPT) controller in distributed photovoltaic (PV) modules. The power produced by a PV module depends on the solar irradiance and temperature. MPPT controllers adaptively search and maintain operation at the maximum power point for changing irradiance and temperature condition, thus maximizing the panel power output and...
In previous work, we applied artificial neural networks (ANN) for short term load forecasting using real load and weather data from the Hydro-Quebec databases where three types of variables were used as inputs to the neural network: (a) hour and day indicators, (b) weather related inputs and (c) historical loads. In general, for forecasting with a lead time of up to a few days ahead, load history...
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