Hi Friends
I need the genset 2kva to power the solar inverter 5kva at night. Not from mains supply input but from the solar input. If it was 5kva genset then it could power the mains input, no issues. When the solar panels(genset giving DC) can't handle the load (say 4kva) the inverter will take some juice from the batteries to fill the gap.
The ac output of the genset converted to dc will power the solar input of the inverter (max pv string voltage limit is 500vdc). So I need an ac to dc converter. Quite simply connecting a bridge rectifier and capacitor could do the trick, but there are a couple of issues.
1. The genset has AVR and i would like to remove that AVR or disable it somehow. That way it is better, as voltage goes down the MPPT input sensing will reach a point of balance and it will not overload the genset.
2. The load changes the frequency of the genset from 50hz few seconds to 45hz. The simple bridge rectifier will also have a ripple and it could confuse the MPPT solar input
I guess there are modules available on alibaba website for 1000 dollars but i want to build it. Perhaps some chip like LM317 voltage regulator could solve my problems. Thanks for your help.
I need the genset 2kva to power the solar inverter 5kva at night. Not from mains supply input but from the solar input. If it was 5kva genset then it could power the mains input, no issues. When the solar panels(genset giving DC) can't handle the load (say 4kva) the inverter will take some juice from the batteries to fill the gap.
The ac output of the genset converted to dc will power the solar input of the inverter (max pv string voltage limit is 500vdc). So I need an ac to dc converter. Quite simply connecting a bridge rectifier and capacitor could do the trick, but there are a couple of issues.
1. The genset has AVR and i would like to remove that AVR or disable it somehow. That way it is better, as voltage goes down the MPPT input sensing will reach a point of balance and it will not overload the genset.
2. The load changes the frequency of the genset from 50hz few seconds to 45hz. The simple bridge rectifier will also have a ripple and it could confuse the MPPT solar input
I guess there are modules available on alibaba website for 1000 dollars but i want to build it. Perhaps some chip like LM317 voltage regulator could solve my problems. Thanks for your help.