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This paper describes the simulation of a distributed generation system with storage technologies. The simulation is performed using a SCADA software for a distributed generation system, considering the generation cost, the daily load, the power losses and the availability of the system's generating units. Also, a storage unit is added to the system. The system's generating units cover demand in order...
The method of concrete monolith splitting off by pulsed electrical discharge is presented. The pulsed power generator with stored energy up to 63 kJ and electro-explosive cartridge of polyethylene with wire for discharge initiation1 are described. The electrical characteristics of plasma channel initiated by exploding wire in polyethylene capillary are investigated. The laboratory measurement results...
This paper considers market operation of an energy storage unit. The goal is to assess the potentials for revenue and impact of a profit-maximizing storage unit on market prices in the day-ahead electricity market. It also analyzes the impact of a storage unit on market performance of conventional generators. A bilevel profit maximization model is proposed in which the upper-level problem is a storage...
The recent introduction of a number of electricity market instruments is designed to incentivise investment in reliable peaking capacity and power quality services. In this context, the energy storage capability of plug-in electric vehicles has the potential to provide valuable services to these markets. Using the UK as a case study, this paper quantifies the current and projected value streams for...
In this paper, a management strategy to be used in the scheduling of insular electrical systems with energy storage system (EES) is presented. Integration of ESS allows reducing generation costs and greenhouse gases (GHG) emissions, as well as improving wind power penetration levels. The methodology presented in this paper is particularly useful for those systems provided with battery ESS, due to...
We have studied the water treatment by spraying into a pulsed discharge space in air, to decompose refractory organic compounds included in industrial waste water. In practical application, a large quantity of water must be treated. Hence, the enlarged reactor and pulsed power generator were made and were compared to previous equipment to confirm effect of enlargement of equipment. The enlarged reactor...
Expanding distributed generation systems, advancing energy storage options and innovative approaches in the area of demand management open new doors in grid operation. Grid-responsive devices can be considered as Distributed Energy Resources (DERs) and used to form Virtual Power Plants (VPPs). Because the aim is to benefit from many assets that have individual primary tasks and operational constraints,...
The objective of this paper is to control the frequency of hybrid renewable energy system (HRES) with the help of proportional-integral (PI) controller according to sudden change in wind speed, load demand and solar radiation. A comparison study is presented in this paper between conventional PI controllers and PSO tuned optimal PI controllers. The HRES is combination of multiple generation and storage...
This work considers the problem of optimizing the energy management within an Energetic Island by modelling the parameters that configure its components. Such components are typical ones found in renewable energy systems and Smart Grids systems: a power storage system, on demand energy generators and different models for energy generation and load. The optimization consists of minimizing two key values...
Microgrids, as individual controllable entities that can operate either islanded from or interconnected to main power grid, have emerged as a promising solution to improving energy efficiency and resilience to disturbance. When linked together in a self-organized manner, a cluster of microgrids can significantly enhance the reliability and power quality for critical load. With this insight, we study...
This paper proposed optimal placement of the energy storage units within a deregulated power system to diminish its hourly cost. Wind generation and load are modeled using actual data approach. Based on a model of the electricity market, we diminish the hourly communal cost using probabilistic optimal power flow (POPF) then use an Improved Adaptive Genetic Algorithm (IAGA) to exploit wind power utilization...
Electric Vehicles (EV) and Plug-in Hybrid Electric Vehicles (PHEV) are being considered as aspirant competitors of traditional fuel engine vehicles and more attractive goods to consumers in recent years. The current power grid is being challenged by the increasing power demand from ordinary power supply and extract demand of developing power charging stations for EV/PHEV. The architecture and efficient...
The intermittence nature of distributed renewable generation presents significant challenges for microgrid operation. Advanced demand side management, with innovative structures and technologies, provides feasible solutions for this issue. This paper presents a stochastic resource planning strategy for microgrid to optimally manage its resources on both generation and demand sides to improve the system...
This paper investigates the design of a medium voltage direct current (MVDC) microgrid for a remote area mine site. The various aspects covered include its protection schemes as well as operation and control. This is intended to provide a voltage of high power quality and reliability at the sensitive load terminals, and also improve the energy efficiency of all the mining equipment. In the proposed...
Microgrid combines with Distributed Energy Resources (DERs), energy storage, and controllable loads. It is connected to the maingrid through the point of common coupling (PCC). Economic dispatch using reduced gradient method is implemented for the optimization of energy in the microgrid using MATLAB. The optimization is obtained by minimizing the cost function of the system while meeting the load...
Hydraulic wind power transfer systems allow collecting of energy from multiple wind turbines into one generation unit. They bring the advantage of eliminating the gearbox as a heavy and costly component. The hydraulically connected wind turbines provide variety of energy storing capabilities to mitigate the intermittent nature of wind power. This paper presents an approach to make wind power become...
The major objectives of a small island energy network management include the reduction of operating cost, fossil fuel dependency, Carbon Dioxide (CO2) emission and improvement of price stability, operating flexibility and efficiency. In this paper a well defined control technique is proposed to regulate voltage and frequency for high penetration of renewable energy in small island system. The technique...
This paper presents a simple and robust control technique for distributed energy resources in microgrids. The technique utilizes the full potential of distributed energy resources, during grid connected and islanded operating modes. In grid-connected mode, the control pursues quasioptimum operation of the microgrid, so as to reduce distribution losses and voltage deviations while fully exploiting...
This paper presents an algorithm for the operation of batteries within hybrid microgrids. The proposed strategy is not based on any communication, and each distributed controller uses only local measurements. The basic concept of the algorithm is to adapt the setpoints of droop control depending on the State of Charge (SoC) of the battery connected to its DC-link. The introduced method is applied...
This paper proposes a control method of the whole ship Integrated Power System (IPS) with an Active Front End (AFE) converter and a Battery Energy Storage System (BESS). The propulsion inverter which drives the propulsion motor controls the ship speed by controlling the torque of the motor. The AFE converter controls not only the active and reactive power flow at the Point of Common Coupling (PCC)...
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