Modeling and Simulating of an Energetic Complex System Constituted by a Photovoltaic Array, a Wind Turbine, an Electrolyzer and Fuel Cells

2019 ◽  
Vol 5 (1) ◽  
pp. 813-824
Author(s):  
Philippe Poggi ◽  
Marc Muselli ◽  
Christian Cristofari ◽  
Christophe Darras ◽  
Pierre Serre-Combe ◽  
...  
Keyword(s):  
Complex System ◽  
Fuel Cells ◽  
Wind Turbine ◽  
Photovoltaic Array ◽  
Energetic Complex

Multi-input DC-AC Inverter for Hybrid Renewable Energy Power System

2016 ◽  
Vol 6 (1) ◽  
pp. 40
Author(s):  
Mohd Azman Rosli ◽  
Nor Zaihar Yahaya ◽  
Zuhairi Baharudin
Keyword(s):  
Renewable Energy ◽  
Fuel Cell ◽  
Power System ◽  
Wind Turbine ◽  
Renewable Energy Sources ◽  
Energy Utilization ◽  
Power Characteristics ◽  
Circuit Simulator ◽  
Photovoltaic Array ◽  
New Energy

The objective of this paper is to design a multi-input dc-ac inverter integrated photovoltaic array, wind turbine and fuel cell in order to simplify the hybrid power system and reduce the cost.  The output power characteristics of the photovoltaic array, wind turbine and fuel cell are introduced. The operational principle and technical details of the proposed multi-input dc-ac inverter is then explained. The proposed inverter consists of a three input flyback dc-dc converter and a single phase full bridge dc-ac inverter. The control strategy for the proposed inverter to distribute the power reasonably to the sources and it achieved a priority of the new energy utilization is discussed. This multi-input dc-ac inverter is capable of being operated in five conditions and power delivered to the ac load can be either individually or simultaneously. First to third condition occurs when the power delivered from either renewable energy sources individually, fourth condition happens when power is demanded from two sources simultaneously, and finally when power are available from three sources simultaneously. The proposed inverter has been simulated by employing NI Multisim 12.0 circuit simulator.

Enhancement of low voltage ride-through ability of the photovoltaic array aided by the MPPT algorithm connected with wind turbine

2020 ◽  
Vol 54 (4) ◽  
pp. 503-527
Author(s):  
Charanjeet Madan ◽  
Naresh Kumar
Keyword(s):  
Wind Turbine ◽  
Power Plants ◽  
Low Voltage ◽  
Gray Wolf ◽  
Content Type ◽  
Low Voltage Ride Through ◽  
Photovoltaic Array ◽  
Pv Array ◽  
Bee Colony ◽  
Better Than

PurposeBy means of the massive environmental and financial reimbursements, wind turbine (WT) has turned out to be a satisfactory substitute for the production of electricity by nuclear or fossil power plants. Numerous research studies are nowadays concerning the scheme to develop the performance of the WT into a doubly fed induction generator-low voltage ride-through (DFIG-LVRT) system, with utmost gain and flexibility. To overcome the nonlinear characteristics of WT, a photovoltaic (PV) array is included along with the WT to enhance the system’s performance.Design/methodology/approachThis paper intends to simulate the control system (CS) for the DFIG-LVRT system with PV array operated by the MPPT algorithm and the WT that plays a major role in the simulation of controllers to rectify the error signals. This paper implements a novel method called self-adaptive whale with fuzzified error (SWFE) design to simulate the optimized CS. In addition, it distinguishes the SWFE-based LVRT system with standard LVRT system and the system with minimum and maximum constant gain.FindingsThrough the performance analysis, the value of gain with respect to the number of iterations, it was noted that at 20th iteration, the implemented method was 45.23% better than genetic algorithm (GA), 50% better than particle swarm optimization (PSO), 2.3% better than ant bee colony (ABC) and 28.5% better than gray wolf optimization (GWO) techniques. The investigational analysis has authenticated that the implemented SWFE-dependent CS was effectual for DFIG-LVRT, when distinguished with the aforementioned techniques.Originality/valueThis paper presents a technique for simulating the CS for DFIG-LVRT system using the SWFE algorithm. This is the first work that utilizes SWFE-based optimization for simulating the CS for the DFIG-LVRT system with PV array and WT.

Constructing Reliability Analysis Model of Complex Systems Based on FMEA-FTA-BN

2014 ◽  
Vol 945-949 ◽  
pp. 1042-1045
Author(s):  
De Zhong Ma ◽  
Wen Fei Ding ◽  
Yong Qing Jiang ◽  
Zhen Zhou
Keyword(s):  
Complex System ◽  
Complex Systems ◽  
Wind Turbine ◽  
Reliability Analysis ◽  
System Reliability ◽  
Reasoning Ability ◽  
Analysis Model ◽  
Wind Turbine Gearbox ◽  
Reliability Modeling ◽  
Novel Method

In order to solve the difficulties existing in course of complex system reliability modeling, a novel method was proposed in this paper. According to the analysis sequence, from FMEA to FTA to BN, a BN can be constructed by making full use of the helpful information in the results of FMEA and FTA. The reliability of complex system can be analyzed based on uncertainty-expression ability and bidirectional-reasoning ability of BN. For demonstrating the effectiveness of this method, aim at the failures of gears in wind turbine gearbox, a BN for system reliability analysis was constructed.

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