Breaking News
Design How-To

Enhancing the efficiency of photovoltaic systems

NO RATINGS
Page 1 / 4 Next >
More Related Links
View Comments: Newest First | Oldest First | Threaded View
green_is_now
User Rank
CEO
re: Enhancing the efficiency of photovoltaic systems
green_is_now   1/18/2013 5:23:40 PM
NO RATINGS
Microsmi makes vry lo pwer FPGA device. Misleading is the use of 1t,2nd,srd for efficiencyimprovements the are all seperate and inependent issues. MPPT input power otimization. PWM, how any MPPT, PFC, PFM or PWM circuit works, it s the basis of all modern power conversion. PFC = current propotionl to voltage... over fundamental period. All must be used together to maxamize efficiency.

Some Guy
User Rank
Manager
re: Enhancing the efficiency of photovoltaic systems
Some Guy   11/16/2012 10:32:26 PM
NO RATINGS
At a systems level, if you have any electrical storage in the system, you are best off to connect the panels and the batteries by DC, not AC. That typically results in 10% more energy available when you invert the AC out of the storage. (1. Eliminates a conversion: DC -DC - AC instead of DC - AC - DC - AC, and 2. higher end-to-end efficiency)

jadwin79
User Rank
Rookie
re: Enhancing the efficiency of photovoltaic systems
jadwin79   11/16/2012 4:29:05 PM
NO RATINGS
If by "prevalent" you mean installed capacity, then wind far outstrips solar. Latest numbers I saw were 238 GW for wind, 67 GW for solar. You also mention solar efficiency of 19% (that is a typical number for panels themselves) and then say we need 95% to "maximize use of harvested solar energy". I think you probably meant to say that just the inverter efficiency should target 95% since basic physics limits existing Si panel efficiency to about half that.

Most Recent Comments
Ian Johns
 
David Ashton
 
elizabethsimon
 
Anand.Yaligar
 
MeasurementBlues
 
Anand.Yaligar
 
Anand.Yaligar
 
Anand.Yaligar
 
Anand.Yaligar
Radio
NEXT UPCOMING BROADCAST
EE Times Senior Technical Editor Martin Rowe will interview EMC engineer Kenneth Wyatt.
Top Comments of the Week
Like Us on Facebook

Datasheets.com Parts Search

185 million searchable parts
(please enter a part number or hit search to begin)
EE Times on Twitter
EE Times Twitter Feed
Flash Poll