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September 26, 2009

Mtg: Intelligent Balance-Of-System (BOS) Electronics for Optimizing the Energy Output from Residential Solar Installations

by @ 8:11 am. Filed under ALL, Electrical/Power, Electronics Design, Optics/Displays, Semiconductors
 

WEDNESDAY September 30, 2009
SCV Power Electronics Chapter
Speaker: Ron Hadar, President and CEO, Tigo Energy
Time: Networking & Pizza at 6:00 PM; Presentation at 7:00 PM
Cost: Donations for food accepted
Place: Tigo Energy, Inc., 170 Knowles Drive, Suite 203, Los Gatos
RSVP: from link on the website
Web: ewh.ieee.org/r6/scv/pels

Todayâ??s best solar installations are designed to maximize power output across the entire system.? Unfortunately because individual solar modules in a sub-array can perform very differently, the system is limited by the weakest module.? An individual moduleâ??s power output can be affected by shading, dust & debris, temperature and degradation over time.? In many existing photovoltaic installations the strongest PV modules will generally operate below capacity while the weakest modules may be shut off entirely.? Next-generation systems aim to recover the output of each module in the sub-array, harvesting power output that is simply wasted today.? For a typical residential installation, a combination of an active electronic control system coupled with software can improve power output (kWh) in excess of 20% depending on weather conditions.? Newer system architectures can also simplify the design, expand acceptable rooftop locations, and can help maximize Performance-Based financial Incentives (PBI) from state and federal governments.
This month’s discussion will highlight some of the critical issues associated with optimal residential PV system design such as:
â?¢? ? ? Module connection topologies
â?¢? ? ? Isolation requirements for safety and regulatory compliance
â?¢? ? ? Intelligent Maximum Power Point Tracking? (MPPT) module design
â?¢? ? ? System management and monitoring software

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