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This paper proposes strategy to maximize the use of renewable energy on islanded grid. Photovoltaic will be used as main electricity source to supply home load. Lack of electricity will be supplied by picohydro power plant (PHPP). Deficit of electricity supply is utilized as set point reference by a controller implementing model predictive control (MPC) to regulate the flow control valve which feed...
This paper presents a Fuzzy-PID controller for maximum power point tracking (MPPT) of photovoltaic (PV) systems. A DC/DC buck converter to regulate the output power of the photovoltaic system is considered. The Fuzzy-PID scheme operates on MPP and improves the performance of solar energy conversion efficiency. The offline optimization algorithm of Big Bang - Big Crunch (BB-BC) is applied on the parameters...
This paper describes a bipolar DC distribution system with a new half-bridge voltage balancer which can adjust the unequal voltage between the positive and the negative poles. The half-bridge voltage balancer has two cascaded voltage and current controls for adjusting the terminal voltage unbalance due to the unequal load size. The operation of typical bipolar DC distribution system, which consists...
This paper analyses the 11 kV Medium Voltage (MV) networks using real network and load data. High penetration Photovoltaic (PV) connected to a MV feeder is modeled using RETScreen to estimate the output power based on meteorological and geographical data. Simulations are run across 24 hour period to see the voltage fluctuations, active and reactive power behavior, load profile, power loss and energy...
Power system operation practices are changing with the addition of renewable energy resources such as photovoltaic (PV) sources. The diverse and intermittent nature of these resources demands new operation strategies to ensure system reliability. As more PV units are added to power systems, the power generated by conventional generation resources should be reduced to accommodate these new resources...
The high penetration of distributed generation (DG) sources in distribution networks (DN) can induce overvoltage issues. In this paper, an optimal and fair real power capping method (RPCM) for voltage regulation in DN with high photovoltaic (PV) penetration is proposed. Based on the forecasting of solar radiance and load profiles, the method optimally dispatches the generation of PVs to prevent overvoltage...
Most utilities use a standard small generator interconnection procedure (SGIP) process that includes a screen for placing potential PV interconnection requests on a fast track that do not require more detailed study. One common screening threshold is the 15% of peak load screen that fast tracks PV below a certain size. This paper performs a technical evaluation of the screen compared to a large number...
This paper presents studies and the implementation of a novel grid-connected PV system with storage. The goal of this project is to validate the operation and to determine the benefits and limitations of integrating storage with grid-connected PV systems. The objective is to evaluate the viability of using complementary electricity storage for meeting the local evening peak demands - “night-time peak...
This paper describes a system for power supply, monitoring, control and communication for isolated temporary habitats. The system described consists in six modules and offers all the necessary equipment in order to operate a fully functional camp.
This paper presents a Software Radio implementation for an Electric Arc locator system. The novelty of this work resides in the application of telecommunication specific signal processing methods for the field of energy generation and transmission. The advantage of the proposed solution compared to other current implementations is the improved flexibility and adaptability to various working conditions...
In this paper an optimal sizing and operation strategy for a smart Microgrid equipped with renewables/non-renewables generators and storage is presented. The general optimization objective is to define the best architecture of the Microgrid and the optimal size of the components, in order to maximize the self-consumption of the energy produced by RES. The possible arrangement of the Microgrid includes...
Facing with the problems of energy-saving emission reduction and marine pollution, the shipping industry have invested a great interest in developing “Green Ship” by utilizing the solar energy technologies. Solar ship, which integrates the solar photovoltaic (PV) system into its own ship power system, is becoming one kind of most promising and fastest developing green ship. In this paper, the development...
Increasing photovoltaic (PV) penetration is a major driver for developing new methods to integrate renewable generation into distribution systems. For planning of low voltage distribution networks future share of penetrations have to be modeled in an appropriate way, to simulate and analyze the impact of PV generation. Different approaches to model high penetration scenarios - in particular defining...
The operation of photovoltaic generation system (PVGS) is modeled and proposed in this paper. The target of proposed model is to encourage Distributed Generation (DG) or Very Small Power Producer (VSPP) to provide contribution to the connected system, by its operation, especially the voltage regulation. The proposed model allows PVGS to either consume or supply reactive power for maintaining system...
Due to existing conflicts or natural disasters in many different parts of the world, refugee camps are established by different aid organizations in order to provide local humanitarian assistance. Nowadays, these camps are electrically supplied using diesel generators, which are not environmentally friendly and require huge amounts of not easily available fossil fuels. In this sense, Microgrids (MGs)...
Dynamic simulation models of photovoltaic plants are needed during the design stage of the plant, to show compliance with grid code requirements, as well as after commissioning, to validate the model response with the real plant performance. Due to the large number of PV installations and inverter models, there is a strong need to move from specific manufacturer's user models to generic models, as...
This paper created a new research space in the faults modeling and detection area of the industrial systems, especially photovoltaic generators. It reserved for modeling and detection the hybrid defects, like the presence of cells open- and short-circuit within the same photovoltaic cells group. For a small investment, the new algorithm created a new platform. It exposed a display screen of the database,...
Growing solar PV energy generation must be coupled with low cost monitoring schemes for its wider uptake. Conventional grid-tied PV systems, deployed generally in the developed countries, are supplemented with information available through weather stations and other established means. However, emerging regions of Africa and South Asia require low cost local monitoring for resource optimization, preemptive...
Maximum Power Point Tracking (MPPT) is an essential element of a PV system. Bench power supplies provide a reasonable approximation of solar panel behavior and can be used for initial testing. However, detailed testing with actual solar panels is required to accurately establish the performance of MPPTs. This could be a difficult and time consuming task, especially for medium and high power ratings,...
With the increasing number of distributed generators which transform renewable power sources to electricity, PV generators trough invertors, when is usually difficult to make power output regulation from the primary source side, is the problem of the output power adapting according to the consumption requirements increasingly important. Therefore, it will be necessary to involve these sources to the...
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