to know a microinverter powered by fsp
TRANSCRIPT
To Know a microinverter Powered by FSP
http://technews.tmcnet.com/green/topics/green/articles/2013/09/03/351606-shocker-firefighters-report-that-solar-roofs-pose-electrocution.htm
image via Underwriters Laboratories, Inc.
How to avoid…
Solar cell is the beginning
A typical String inverter System
• Many PV modules (10-20) are connected in series, voltages stacked as a higher DC source(500~1000Vdc).
• Startup, open circuit & MPPT voltages need considered
• Currents must be matched
• DC disconnection device is MUST
• String inverter has 1-2 stringed PV panels as its input
• Central inverter ties multiple strings in parallel
• A string inverter works most efficiently when all the PV panels have the same characteristics and are operating under the same conditions
The String Inverter
A typical microinverter System
• It is individually connected to one or two PV-modules 250 – 350W; 20 – 60Vdc; 0 – 10A
• Grid ready AC output
• Mounts behind the panel
• Highly integrated plug & play:
- Safety/disconnect
- Transient suppression
- Module-level MPPTs, monitoring
• Be able to harvest the highest possible energy from each module and bring shading, various sunlight angle and module toleranceseffects to a minimum.
The microinverter
What’s the difference
1. In the traditional photovoltaic string converter architecture, all of the solar modules in an array feed energy into a single string inverter
Dual-input microinverter;
Input Data (DC)
Recommended PV module power (STC)
230~300W
Maximum input (Full Power) 60V
MPPT voltage range (Full Power) 27~45V
Operating voltage range 22~55V
Maximum DC short circuit current 15A X 2
Maximum input current 9.7A X 2
Output Data (AC)
Peak power 600W
Maximum continuous output power 500W
Nominal output current 2.08A
Nominal output voltage240V
(211-264V) Launch EU in H2’2016
Residential and Commercial projects
FSP600PV-NA-208/ 240 /277
Quad-input microinverter; Commercial, Grid scale power stations
Input Data (DC)
Recommended PV module power (STC) 230~350W
Maximum input 60V
MPPT voltage range (Full Power) 30~45V
Operating voltage range 22~55V
Maximum DC short circuit current 15A X 4
Maximum input current 10A X 4
Output Data (AC)
Peak power 1,200W
Maximum continuous output power 1,200W
Nominal output current 5A
Nominal output voltage240V
(184-305V)
Features
- Reactive Power Compensation- Low Voltage Ride Through Launch EU in Q4’2016
FSP152PV-240
• Reliability, reduce single point of failure form series to parallel
• Efficiency, individual Maximum Power Point Tracking : More power generated, up to 16% (average)
• Saving, reduce the system impact by shadow affect ; lower operation fee
• Silent, good efficiency without fan cooling
• Secure, lower DC voltage to secure your property
• Easy to identified the failure parts and their location
• Scalability for residential, commercial and even a power plant
Benefits on microinverter
The Facts about Reliability: MTBF and Lifetime
• MTBF (Mean time between failures) is a statistical predicted time of failure, calculated from the failure rates in stress of the composed components.
MTBF is NOT the same as wear out or lifetime !
-- A MTBF for 300 years means:
-- If you have 300 microinverters, one will likely fail every year.
If you have 20 microinverters, one is likely to fail every 15 years.
• Lifetime or wear out is a value of a device that has stopped to perform its duties within a certain tolerance.
-- A PV module has a 25-year lifetime: at the end of that period,
it is expected to produce 70% power when it was new.
Improved System Reliabilitythru reduced single points of failure
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