Title :
IC design of DMPPT controller for Cascade and MCCU topology of photovoltaic systems
Author :
Cho, K.H. ; Sohn, S.M. ; Jeong, J.G. ; Lim, S.I. ; Cho, I.S. ; Kim, J.Y.
Author_Institution :
RTS Energy Inc., Seoul, South Korea
Abstract :
This paper presents IC design of Distributed Maximum Power Point Tracking (DMPPT) controller for Cascade and Mismatched Current Compensation Unit (MCCU) for photovoltaic systems. The Cascade part can handle the conventional DMPPT algorithm and the MCCU part can handle the differential power processing algorithm. This solution can mitigate mismatches in photovoltaic(PV) power system, while introducing no insertion loss and reducing the system cost compared to a microprocessor-based solution. A 0.18um 1-poly 4-metal 5V process was selected for the IC development. MPPT peak efficiency of over 99% is achieved.
Keywords :
integrated circuit design; maximum power point trackers; photovoltaic power systems; 1-poly 4-metal process; DMPPT controller; MCCU topology; cascade topology; differential power processing; distributed maximum power point tracking controller; integrated circuit design; mismatched current compensation unit; photovoltaic power system; size 0.18 mum; voltage 5 V; Integrated circuit reliability; Noise; Pulse width modulation; Switches; Topology; Cascade; DMPPT; IC; MCCU; PV module;
Conference_Titel :
SoC Design Conference (ISOCC), 2014 International
DOI :
10.1109/ISOCC.2014.7087631
