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Faiz Majeed,Dania Batool,Jonghoon Kim 전력전자학회 2021 전력전자학술대회 논문집 Vol.2021 No.11
The existing energy resources offer a huge amount of potential to threaten the survival of planet Earth. To overcome such disasters as climate change, solar energy offers a solution. In this regard, many types of research have been done to produce cost-effective and efficient solar energy. There are lot of factors on which efficiency of solar panel depends, finding the maximum power point angle is one of those factors and the presented work is also related to it. This paper proposes a system that is intelligent enough to find the angle of the solar panel where maximum energy is produced. The maximum energy producing angle is measured on only one solar panel, the information of the maximum energy producing angle is shared with the whole system and all the solar panels are moved accordingly. This paper proposes to use the proportional integral differential controller to move the solar panels to maximize energy producing angle. This design helps in saving computational load from all solar panels and in the production of maximum energy.
Dania Batool,Faiz Majeed,Jonghoon Kim 전력전자학회 2021 전력전자학술대회 논문집 Vol.2021 No.11
A battery-based inverter converts the DC source from the batteries to AC. These batteries are the basis for the entire system. This paper proposed a novel architecture for the inverter which requires fewer semiconductor switching devices. This will help to reduce the size, switching losses, and improve system efficiency. Herein, we suggest a new pulse width modulation technique to implement the concept of equal DC sources discharge. DC sources must be balanced in terms of their switching angles and voltage in order to reduce the total harmonic distortion by the maximum possible voltage sinusoidal. Additionally, a state-of-charge balancing technique is implemented by using a particle swarm optimization algorithm. A switch utilization comparison for traditional and proposed cascaded H-bridge is also presented for high number of output voltage levels.