Photovoltaic Energy Harvesting Chip With P&O Maximum Power Point Tracking Circuit and Novel Pulse-Based Multiplier

Autor:	Chia-Ling Wei, Hung-Hsien Wu, Wei-Han Pan, Tien Hsu, Jian-Zhou Yan
Rok vydání:	2021
Předmět:	Microcontroller Maximum power principle business.industry Computer science Photovoltaic system Electrical engineering Multiplier (economics) Electrical and Electronic Engineering business Chip Energy harvesting Analog multiplier Maximum power point tracking
Zdroj:	IEEE Transactions on Power Electronics. 36:12867-12876
ISSN:	1941-0107 0885-8993
Popis:	A photovoltaic (PV) energy harvesting chip with novel multiplier-based perturb and observe (P&O) maximum power point tracking (MPPT) circuit for Internet - of-Things applications is proposed, and it can be powered by only a small PV module. The proposed P&O MPPT circuit can accurately detect the maximum power point of the PV module without using a power-hungry microcontroller or inaccurate analog multiplier. Instead, a high-accuracy pulse-based multiplier is proposed. Its input signals are analog, while its output signal is digital. Moreover, a new MPPT controller based on the proposed multiplier is also presented. The chip was fabricated using a 0.18 μ m 1P6M mixed-signal CMOS process. According to the measured results, the available power from the chosen PV module is 0.1–3 mW, the maximum tracking efficiency of the proposed MPPT circuit is 99.3%, and the maximum total efficiency of the proposed harvesting chip is 94.7%.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::36a0d00bff1ff4243e119cc21d8949ff https://doi.org/10.1109/tpel.2021.3082533 Zobrazit plný text záznamu