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All Journal International Journal of Power Electronics and Drive Systems (IJPEDS)
Siti Zaliha Mohammad Noor
Universiti Teknologi MARA (UiTM)
Control & Systems Engineering Electrical & Electronics Engineering

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A new technique in reducing self-power consumption in the controller of off-grid solar home system Mohammad Shariful Islam; Siti Zaliha Mohammad Noor; Hasmaini Mohamad; Nur Ashida Salim; Zuhaila Mat Yasin
International Journal of Power Electronics and Drive Systems (IJPEDS) Vol 13, No 4: December 2022
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijpeds.v13.i4.pp2235-2243

Abstract

Reducing the self-power consumption of an off-grid solar home system is an economic model in which consumer employs photovoltaic (PV) system for its own electrical requirements. The latch-based clock gating approach has been employed in existing solar charge controllers to reduce integrated circuit (IC) power being used in the low-powered intended mode, although the reducing power is limited. This paper presents a self-power reduction technique based on wake-up power and latch-hold time; which minimize power supply during idle time for a solar home system. Wake-up power introduces a push-switch mechanism using typical transistor technology. Latch-hold time function is designed using an operational amplifier and negative-positive-negative (NPN) transistor. A technique with dynamic self-supply mechanism is also introduced for decreasing self-power consumption. The self-power consumption is identified via simulation studies where the result shows that the power usage is 70% lower than traditional approaches. This is determined using a simulated wave-shape analysis.
Co-Authors Hasmaini Mohamad Mohammad Shariful Islam Nur Ashida Salim Zuhaila Mat Yasin