Three-Phase Five-Level Flying Capacitor Multilevel inverter For Harvesting Solar Power
Journal Title: International Journal of Engineering and Science Invention - Year 2018, Vol 7, Issue 4
Abstract
Nigeria And Other Developing Countries Have Been Experiencing An Increase In Power Reduction And Failure Due To Increment Of Population, Depending On National Grid Which Is Not Reliable. This Project Attempts To Solve The Problem Of Power Energy Using Clean Renewable Power Energy By Designing A ThreePhase Five-Level Flying Capacitor Multi-Level Inverter (Fcmli) Getting Its Energy From The Sun. The System Described Was Design And Analyzed In Four Stages; The Solar Energy Harvesting, The Current/Voltage Control, The Boost Converter And The Fcmli. The Solar Energy Harvesting Described Uses Arrays Of Solar Panels In Series And Parallel To Obtain The Required Voltage And Current Of (200-240vdc And 12-17a). The Solar Panels Array Is Connected To A Current/Voltage Controller System That Measures The Current And Voltage Of The Solar Pv And Generates An Equivalent Scaled Voltage Values For The Current Range 12-17a. The Voltage Is Scaled Between The Ranges Of 3.8v To 5v For Switching To Occur. The Boost Converter Step Up The 200-240vdc From The Solar Pv To 415vdc, Only When The Current Of The Pv Is Between 12-17a The Voltage Step Up Occurs. The 415vdc From The Boost Converter Is Fed Into The Three-Phase Five-Level Fcmli To Convert It To 415vac Using Pod Modulation Technique. The Simulation Is Done Using Simulink And The Results From The Simulations Shows That The Fcmli Generates Modified Sinewave After Filtering Using Third Order Lcl Filter A Sinewave Is Produced. The Thd When Voltage Is Not Filtered Is 22.56% And When The Voltage Of The Fcmli Is Filtered Is 16.76%; This Shows The Filtered Circuit Generates A Pure Sinewave And Less Thd, This Design Can Be Connected To Any Grid Via Transformer.
Authors and Affiliations
Ada Olokpo, Goshwe Nentawe, David O. Agbo
Keywords
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