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Hybrid electric vehicle use internal combustion engine (ICE) and electrical power, so it has the advantages of strong power, low fuel consumption, low emissions and so on. The research object of this paper is the single-axle parallel hybrid electric bus. In this paper, a hybrid electric vehicle model including vehicle dynamics system, motor system, engine system, battery system, clutch and energy...
Due to the fast boom of security threats in wireless sensor networks (WSNs) sensitive applications, we propose a game-theoretic protection approach for sensor nodes in a clustered WSN based on a repeated game. The proposed game model is developed for detecting malicious sensor nodes that drop the high priority packets (HPPs) aiming at maximizing the high priority data trustworthiness (HPT). Simulation...
In this paper, the distributed consensus algorithm is proposed to solve the power compensation problem of transmission losses with energy storage systems in a microgrid. Due to the transmission losses, the total power between electrical machines and loads may be not balanceable, the redundant or absent power must be used to charge or discharge the energy storage systems, which is vital to ensure the...
The voltage sag and swell are the important problems that discussed in the grid voltage quality. In this paper, a new compensation structure based on dynamic voltage restorer (DVR) and photovoltaic (PV) system is proposed. PV system is supported by an energy storage element (battery). Also, the operating of PV system is controlled by incremental conductance (IC) algorithm to maximum power point tracking...
Three case study for sizing a hybrid system based on renewable energy, using Hybrid Optimization of Multiple Energy Resources (HOMER) program is presented in this paper. The first case study uses: photovoltaic panels (PV panels), battery, converter and electric charge. The second study includes: wind turbine (WT), battery, converter and electric charge. The third case includes: PV panels, WT, battery,...
Distributed Generation (DG) is a sustainable alternative energy paradigm that allows flexible customer-participated demand response management, high penetration of renewable sources and reduction of greenhouse gas emission. This paper proposes a multi-agent simulation framework that captures emerging complex responses that originate from individual household behaviors. These behaviors have been unattainable...
This paper presents an architecture for digitally managing dc power distribution within a building using a network model, a system for simulating specific systems, and results from initial use of the model. The architecture implements the Local Power Distribution model [7] based on networks of nanogrids, with local prices as the mechanism for determining the direction, magnitude, and timing of power...
The potential for demand side management strategies in isolated microgrids is discussed. Technical and socioeconomic impacts of different peaking clipping, load shifting and valley filling strategies are explored. The case study is a small community in Soroti, in Uganda. Load profiles are modelled using LoadProGen and solar-hybrid system is designed using HOMER. Results highlight the relevance of...
Direct current (DC) power distribution has recently gained traction in buildings research due to the proliferation of on-site electricity generation and battery storage and an increasing prevalence of end uses operating internally on DC. The research discussed in this paper uses Modelica-based simulation to compare the efficiency of DC building power distribution with an equivalent alternating current...
A bipolar dc microgrid features three voltage levels and is capable of transmitting power more efficiently than a unipolar system. This paper proposes a droop control to achieve load sharing and voltage balancing in such a microgrid system. Droop control is adopted to ensure that autonomous sharing of load power can be realized without communication. Moreover, the positive and negative pole voltages...
Hybrid and electric buses are becoming more common sight in traffic. Especially the electric buses play an important part in reducing traffic emission. In this paper, energy consumption and energy cost of different busses (diesel, hybrid and electric) are studied. The buses are studied with Lappeenranta Route 1.
In order to analyze the dynamic behavior of a Lithium-ion (Li-ion) battery and to determine their suitability for various applications, battery models are needed. An equivalent electrical circuit model is the most common way of representing the behavior of a Li-ion battery. There are different circuit models proposed and various techniques for parameterization of these models available in literature...
A future soldier carries a large gear weight in the battle because of increasing in the number of electronic devices such as communication equipment, sensors, or battlefield situational displays. These devices are necessary to save his life and ensure the victory in the combat. So, the wearable energy harvesting technology is the optimal solution to provide the energy to the soldier's electronic devices...
In the process of design of electric vehicle control system, the response of each control node in the charging process is analyzed, then the control strategy of the charging process of vehicle on-board charging system is studied and designed according to the electric vehicle on-board charging system structural characteristics, with reference to the national standard of the electric vehicle conduction...
Electric vehicles offer the capability to recover energy by electric braking and therefore to extend the range. Generally, the total demanded brake force of a vehicle is divided and allocated to the front and the rear wheels due to safety and stability issues. Consequently, common electric vehicles with only one central electric machine which drives one axle cannot exhaust the whole potential of recuperation...
this paper presents results on the simulation, modeling and optimization of an off grid hybrid solar PV/diesel/battery/inverter power system for residential application. The principal objective is to design a standalone renewable energy system to meet the desired electric load with high renewable fraction, low excess power and low cost of energy. Hourly simulations and optimization were performed...
Electric vehicles offer the capability to recover energy by electric braking and therefore to extend the range. Due to the dynamic axle load shift during brake applications and corresponding brake force distributions, drive train topologies with single front drive and single rear drive have different potentials with regard to recuperation. The axle load shift of a vehicle is significantly influenced...
Regenerative braking technology is crucial for electric vehicle applications. Where, the motor is used as a generator to charge the vehicle's battery. However, the regenerated energy is not fully returned to the battery. Some power losses are experienced in between such as losses in the motor's armature and switching losses. The motor drive system described in this paper has an energy storage system...
This paper address a study of Low-Voltage (LV) distribution system composed by decentralized PV-BES and centralized BES in developing country. The purposes of work is to size the PV-BES which connected into grid. Genetic Algorithm (GA) optimization solver in MATLAB has been employed to size the maximum PV penetration and minimum BES of decentralization according to PV and load curves. A sizing strategy...
This paper proposes a modeling and control to enhance a grid on/ofï operation of a single-phase system consisting of a Single-Phase Five-Level Inverter (SPFLI). The Sliding mode control is adopted to compensate the current harmonics, the reactive power and the regulation of the DC bus voltage at the PCC during grid operation. The renewable energy based PMSG wind turbine is used to reduce the energy...
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