Hi,
Joined this forum over two years ago, but this is my first posting !
I've had a Bergey XL-1 24V battery charger setup running here in Ireland since 2010, but after the Power Center controller and batteries died 2 years ago, I thought it would be a good idea to try and rejig it for Grid Tie operation.
So, to that end, the 24V stator has been replaced with a higher voltage 48V one (supplied by Bergey), and a Ginlong GCI-2G-W Wind Grid Tie inverter has been purchased (it's a 2014 model: wind inverters for small turbines seem to be quite rare these days !)
The Ginlong has the option to define a user MPPT table, and I downloaded the spreadsheet share by Rob (Becker) in the post "Power Curve for Scratch Made Hugh Piggott Turbine", but haven't figured out how to use it yet :unsure:
Given that the rated power of the XL-1 is 1000 watts @ 490 rpm, in a wind of 11 m/s, what would be a reasonable starting table for this turbine ?
I haven't connected the turbine to the Ginlong just yet, but measuring the open-circuit DC voltage output in a variety of windspeeds, we see voltages varying from 80V up to around 160V. The tech support guys at Bergey say it can go as high as 240 volts in a strong wind, which is still well within the inverter maximum input voltage of 500V.
However the maximum input current at the Inverter DC terminals is 10 Amps.
Would it be reasonable to assume that the XL1 output current would stay well below 10 Amps - maybe in the order of 6 to 7 Amps maximum, given the relatively high output voltage of the turbine ? (high compared to the old 24V winding, I mean)
The Ginlong manual does emphasize the need to calculate the current at each MPPT point in the curve, to ensure it stays below 10A
Any help or advice on this topic would be warmly appreciated :bigsmile:
Cheers
Mike
Joined this forum over two years ago, but this is my first posting !
I've had a Bergey XL-1 24V battery charger setup running here in Ireland since 2010, but after the Power Center controller and batteries died 2 years ago, I thought it would be a good idea to try and rejig it for Grid Tie operation.
So, to that end, the 24V stator has been replaced with a higher voltage 48V one (supplied by Bergey), and a Ginlong GCI-2G-W Wind Grid Tie inverter has been purchased (it's a 2014 model: wind inverters for small turbines seem to be quite rare these days !)
The Ginlong has the option to define a user MPPT table, and I downloaded the spreadsheet share by Rob (Becker) in the post "Power Curve for Scratch Made Hugh Piggott Turbine", but haven't figured out how to use it yet :unsure:
Given that the rated power of the XL-1 is 1000 watts @ 490 rpm, in a wind of 11 m/s, what would be a reasonable starting table for this turbine ?
I haven't connected the turbine to the Ginlong just yet, but measuring the open-circuit DC voltage output in a variety of windspeeds, we see voltages varying from 80V up to around 160V. The tech support guys at Bergey say it can go as high as 240 volts in a strong wind, which is still well within the inverter maximum input voltage of 500V.
However the maximum input current at the Inverter DC terminals is 10 Amps.
Would it be reasonable to assume that the XL1 output current would stay well below 10 Amps - maybe in the order of 6 to 7 Amps maximum, given the relatively high output voltage of the turbine ? (high compared to the old 24V winding, I mean)
The Ginlong manual does emphasize the need to calculate the current at each MPPT point in the curve, to ensure it stays below 10A
Any help or advice on this topic would be warmly appreciated :bigsmile:
Cheers
Mike
