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Simulation Of Isolated Wind Diesel System With Battery Storage

The Wind-Diesel Power Generation System Is A Hybrid Combination Consisting Of Wind And Diesel As Power Generating Sources. These Types Of Hybrid System Are Designed To Increase Potential Of Generation And Proportionally To Reduce The Cost Of Production. The Existence Of The Wind - Diesel Generation System Started In The Later Part Of 20th Century. The Integration Of Two Generating System Relies Mainly On Complex Controls To Make Certain Of Proper Sharing Of Discontinuous Wind Energy And Handy Diesel Generation To Meet Up The Demand Which Usually Variable In Nature. It Is Also A Major Concern To Reduce The Environmental Impact Of Diesel Generation Which Is Advantage Of The Hybrid Wind Diesel Power Generation. The Transportation Cost Of The Fuel To The Remote Locations Can Be Limited By Effective Use Of This Hybrid System By The Optimal Operation Of The Generations Together.

Analysis Of A High-Power Resonant DC-DC Converter For DC Wind Turbines

A New Method Of Operation For A Series Resonant Converter, With Intended Application In Megawatt High-voltage DC Wind Turbines. Compared To A Frequency Controlled Series Resonant Converter Operated In Sub Resonant Mode, The Method (entitled Pulse Removal Technique) Allows The Design Of The Medium Frequency Transformer For Highest Switching Frequency, While Being Operated At Lower Frequency Without Saturation. The Main Focus Of This Method Is To Identify And Analyze The Operating Modes Of The Converter With Pulse Removal Technique. With The Use Of Variable Frequency And Variable Phase Displacement In Sub Resonant Mode, The New Method Of Operation Promises Transformer Size Reduction And Facilitates Soft-switching Transition Of The IGBTs And Line Frequency Diodes On Rectifier Side. Four Modes Of Operation Are Identified, While Equations For Output Power, Voltage And Current Stress Are Identified. In Order To Control Output Power And Increase Efficiency, Frequency Control In Sub Resonant Is Identified As An Optimal Control Method For High Power Resonant Topologies. But The Drawback Is That The Transformer Needs To Be Designed For Lowest Operating Point. In Order To Solve This Issue, A New Method Of Operation, Entitled Pulse Removal Is Introduced.

Fuzzy Logic Based MPPT For A Wind Energy Conversion System Using Sliding Mode Control

In This Project, The Conventional Hill Climbing Search (HCS) MPPT Algorithm Is Modified Using Fuzzy Logic Theory In A Way That Its Performance Has Been Enhanced In Terms Of Accuracy And Speed. This Modified Algorithm Enables The System To Continuously Extract The Maximum Energy From The Wind By Generating An Appropriate Rotor Speed Reference. Vienna Rectifier Is Used As The Generator-side Converter Due To Its Noticeable Advantages In WECSs.

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