scholarly journals A Novel Evaluation Model for Hybrid Power System Based on Vague Set and Dempster-Shafer Evidence Theory

2012 ◽  
Vol 2012 ◽  
pp. 1-12 ◽  
Author(s):  
Dongxiao Niu ◽  
Yanan Wei ◽  
Yan Shi ◽  
Hamid Reza Karimi
Keyword(s):  
Power Systems ◽  
Power System ◽  
Index System ◽  
Evaluation Model ◽  
Evidence Theory ◽  
Hybrid Power Systems ◽  
Decision Matrix ◽  
Hybrid Power System ◽  
Vague Set ◽  
Hybrid Power

Because clean energy and traditional energy have different advantages and disadvantages, it is of great significance to evaluate comprehensive benefits for hybrid power systems. Based on thorough analysis of important characters on hybrid power systems, an index system including security, economic benefit, environmental benefit, and social benefit is established in this paper. Due to advantages of processing abundant uncertain and fuzzy information, vague set is used to determine the decision matrix. Convert vague decision matrix to real one by vague combination ruleand determine uncertain degrees of different indexes by grey incidence analysis, then the mass functions of different comment set in different indexes are obtained. Information can be fused in accordance with Dempster-Shafer (D-S) combination rule and the evaluation result is got by vague set and D-S evidence theory. A simulation of hybrid power system including thermal power, wind power, and photovoltaic power in China is provided to demonstrate the effectiveness and potential of the proposed design scheme. It can be clearly seen that the uncertainties in decision making can be dramatically decreased compared with existing methods in the literature. The actual implementation results illustrate that the proposed index system and evaluation model based on vague set and D-S evidence theory are effective and practical to evaluate comprehensive benefit of hybrid power system.

scholarly journals Application of using Hybrid Renewable Energy in Saudi Arabia

2011 ◽  
Vol 1 (4) ◽  
pp. 84-89
Author(s):  
E. A. Al-Ammar ◽  
N. H. Malik ◽  
M. Usman
Keyword(s):  
Saudi Arabia ◽  
Renewable Energy ◽  
Power Systems ◽  
Power System ◽  
Power Plants ◽  
Hybrid Power Systems ◽  
Hybrid Power System ◽  
Hybrid Power ◽  
Hybrid Renewable Energy ◽  
The Village

One of the major world wide concerns of the utilities is to reduce the emissions from traditional power plants by using renewable energy and to reduce the high cost of supplying electricity to remote areas. Hybrid power systems can provide a good solution for such problems because they integrate renewable energy along with the traditional power plants. In Kingdom of Saudi Arabia a remote village called Al-Qtqt, was selected as a case study in order to investigate the ability to use a hybrid power system to provide the village with its needs of electricity. The simulation of this hybrid power system was done using HOMER software.

Dynamic Modeling and Simulation on a Hybrid Power System for Dual-Motor-Drive Electric Tracked Bulldozer

2014 ◽  
Vol 494-495 ◽  
pp. 229-233 ◽  
Author(s):  
Hong Wang ◽  
Feng Chun Sun
Keyword(s):  
Power Systems ◽  
Power System ◽  
Dynamic Models ◽  
High Efficiency ◽  
Motor Drive ◽  
Hybrid Power Systems ◽  
Hybrid Power System ◽  
Hybrid Power ◽  
Simulation Results ◽  
The Mathematical Model

Hybrid power systems provide high-performances and high-efficiency power for electric bulldozer. This paper firstly constructs the mathematical model of driving motors system based on the design of dual-motor-driving propulsion system for bulldozer. Secondly, by using the setting values from a bulldozer, simulation work is implemented, and parameters of the hybrid power system are matched, and finally, based on MATLAB/Simulink ,dynamic models for the dual-motor-driving hybrid power system is established, and the simulation results are discussed. Simulation results demonstrate the validity of the hybrid power system model and the matching of the parameters of the hybrid power system is reasonable.

scholarly journals Isolated and Interconnected Multi-Area Hybrid Power Systems: A Review on Control Strategies

Energies ◽  
2021 ◽  
Vol 14 (24) ◽  
pp. 8276
Author(s):  
Sudhanshu Ranjan ◽  
Smriti Jaiswal ◽  
Abdul Latif ◽  
Dulal Chandra Das ◽  
Nidul Sinha ◽  
...  
Keyword(s):  
Power Systems ◽  
Power System ◽  
Transmission Lines ◽  
Rural Areas ◽  
Fossil Fuels ◽  
Control Strategies ◽  
Renewable Energy Resources ◽  
Hybrid Power Systems ◽  
Hybrid Power System ◽  
Hybrid Power

Concerned with the increasing greenhouse gases in the atmosphere due to fossil fuels, the entire world is focusing on electricity generation through renewable energy resources. The most advantageous aspect of the distributed renewable sources is to provide the electricity to remote, scattered and the deprived rural areas by developing the hybrid power system at the smaller scale where power transmission through grid extension is not viable due to some economical, technical or environmental constraints for building new transmission lines. An accurate and adequate control strategy becomes inevitable to uphold the smooth operation by restraining the frequency and voltage deviation within its limit ensuring the highest degree of reliability of hybrid power system to provide an adequate power quality. In this paper, a comprehensive review of different control strategies adopted in isolated and interconnected multi-area hybrid power systems is presented.

Wind/Hybrid Power System Applications for New England Islands

2003 ◽  
Vol 27 (2) ◽  
pp. 143-155 ◽  
Author(s):  
James F. Manwell ◽  
Jon G. McGowan ◽  
Gabriel Blanco
Keyword(s):  
Power Systems ◽  
Power System ◽  
New England ◽  
Feasibility Study ◽  
Electricity Supply ◽  
Hybrid Power Systems ◽  
Hybrid Power System ◽  
Technical Performance ◽  
Hybrid Power

This paper summarizes a feasibility study of potential wind-hybrid power systems for the islands of New England. The work included the compilation of an inventory of New England coastal islands, a categorization of the islands according to energy related criteria, and an overview of their present electricity supply. It also includes a proposal of wind-hybrid power systems for two selected islands, and an estimation of their technical performance and economic merits.

Adequacy Evaluation of Wind-PV-ES Hybrid Power System

2012 ◽  
Vol 608-609 ◽  
pp. 790-795
Author(s):  
Dong Lei ◽  
Lv Qin ◽  
Pu Tianjiao ◽  
Zhou Haiming
Keyword(s):  
Renewable Energy ◽  
Power System ◽  
Sequential Monte Carlo ◽  
Evaluation Model ◽  
Level Energy ◽  
Renewable Energy Resources ◽  
Hybrid Power System ◽  
Hybrid Power ◽  
Proposed Model ◽  
Pv Penetration

Renewable energy resources such as wind, wave, solar and biomass are becoming more important, and Wind-PV-ES hybrid power system is a promising and efficient utilization of renewable energy. Based on the sequential Monte-Carlo simulation approach, an evaluation model of Wind-PV-ES hybrid generation system is built, and storage time series model is optimized. Lastly, the effectiveness and feasibility of the proposed model is verified by a practical example, and the system impacts of PV penetration level, energy storage capacity and rated output power are illustrated.

Optimization of Hybrid Power System Operation

Solar Energy ◽  
2004 ◽  
Author(s):  
Kendra Tupper ◽  
Rob Jensen ◽  
Joe Cloyd ◽  
Rob Wills ◽  
Charles Sullivan
Keyword(s):  
Power Systems ◽  
Power System ◽  
Cost Savings ◽  
Cost Effective ◽  
System Operation ◽  
Power System Operation ◽  
Hybrid Power System ◽  
Hybrid Power ◽  
Load Following ◽  
The Cost

In developing countries, half of the world’s population lives without electric power. Hybrid power systems, consisting of photovoltaic (PV) modules, battery banks, and backup diesel generators, have the potential to become a cost-effective solution for delivering power to many of these remote villages where grid extension is cost-prohibitive. In this paper, we show that improved dispatch strategies can significantly decrease the cost of a hybrid power system. We propose using a genetic algorithm (GA) in combination with novel load and insolation predictive strategies to reduce the operating costs over the present state-of-the-art methods. Realistic simulations demonstrate that this technique provides an average cost savings of 20.9% over the Set Point Strategy and 13.8% over the Load Following Strategy. We show that this strategy is a viable means of reducing the cost of hybrid power system operation.

A Novel Fused Converter for Hybrid Power Systems

2014 ◽  
Vol 984-985 ◽  
pp. 744-749
Author(s):  
W. Margaret Amutha ◽  
Renugadevi ◽  
V. Rajini
Keyword(s):  
Wind Speed ◽  
Power Systems ◽  
Power System ◽  
Rural Areas ◽  
Power Flow ◽  
Electrical Energy ◽  
Hybrid Power System ◽  
Hybrid Power ◽  
Different Seasons ◽  
Continuous Power

—Hybrid power system consists of different sources of electrical energy with different operating times during different seasons. Deployment of a hybrid power system is expected in rural areas. Supplying remote load systems such as rural telephony, hospitals, military etc.., where continuous power supply is required, can be realized with the combination of wind and solar power. The proposed topology is designed for telecom load which uses dual input dc-dc fused converter for combining solar and wind energy sources. For the further research and improvements in the proposed fused converter topology, it is necessary to know in detail the power flow from solar and wind sources to the load or to storage battery depending on different seasons. For various wind speed with constant solar irirradiation and, for various solar irirradiations with constant wind speed, the power flow of the hybrid power system is simulated and presented. The same topology is investigated for different switching frequencies (10 kHz and 20 kHz), using MATLAB/SIMULINK, and the efficiencies are calculated.

scholarly journals Intertied AC-DC Hybrid System Power Sharing Through Intelligent Droop Controller

2018 ◽  
Vol 8 (1) ◽  
pp. 2609-2615
Author(s):  
P. Gupta ◽  
P. Swarnkar
Keyword(s):  
Power Systems ◽  
Power System ◽  
Hybrid System ◽  
Power Flow ◽  
Power Converter ◽  
Power Sharing ◽  
Hybrid Power System ◽  
Hybrid Power ◽  
Power Management Strategy ◽  
Communication Links

The result of DG clustering is the hybrid power system while further clustering forms the intertied hybrid power system. Interfacing of intertied hybrid power system requires an interlinking converter with a legitimate power administration and control system. In contrast to individual hybrid power system (HPS), power administration of the intertied hybrid system is more complex. Autonomous droop strategy is appropriate for the intertied hybrid system where communication links are not possible. This paper proposes a new topology for control in intertied hybrid system where two hybrid power systems are connected to each other through interlink power converter. Evaluated frequencies in different HPSs can diverse. In order to manage power flow a power management strategy with consideration characteristics of common bus, a PDC-vDC2 method is proposed, and compared with conventional droop, to realize power sharing among HPS. The practicability of the proposed power sharing method is realized in MATLAB/Simulink platform.

A Surrogate Modeling Based Approach to Renewable Mobile Hybrid Power System Design

2008 ◽  
Author(s):  
Jonathan Murphy ◽  
Tommer Ender ◽  
Dimitri Mavris ◽  
Comas Haynes
Keyword(s):  
Power Systems ◽  
Power System ◽  
Surrogate Modeling ◽  
Surrogate Models ◽  
Renewable Energy Resources ◽  
Simulation Code ◽  
Hybrid Power System ◽  
Hybrid Power ◽  
Renewable Power ◽  
The Face

A surrogate modeling approach was developed and implemented for facilitating the design of renewable, hybrid power systems. A time-series hybrid power system simulation code (HOMER with supplement analysis) was replicated via readily executable neural network surrogate models. These surrogate models were subsequently integrated into a conceptual design engineering tool. The tool enables the rapid sizing and optimization of system components in the face of variable environmental conditions (i.e., renewable energy resources), economic conditions and weighted objectives. Accordingly, this tool was successfully used in the multi-objective design of a deployable hybrid renewable power system. This same capability can also be used to assess the feasibility of the requirements and constraints themselves, and potentially to guide the customer to appropriate design specifications.

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