I am competing in this solar boat race
and one of their rules was that for a sprint race
and a slalom race, the batteries
have to be disconnected. We have 4 panels
, each rated at 64W(18V), a victron MPPT
(blutooth activated), 240W DC motor
(up to 48V), 3000W PWM motor
My question is, how should I configure this electrical system
power only? Batteries
have to be disconnected and not operable.
Things that I've tried:
I put 4 panels
in series (72V) and connected them to the MPPT charger
. Then the load I connected them to the PWM motor controller. This was not ideal since the motor barely got any power(very slow), and the panels would over volt up to 76V which was past the 75V as advertised and system goes into overvolt protection.
I also thought of connecting the leads of the solar panels
in 36V config (2 parallel, 2 series) directly onto the PWM motor controller but decided that it was safer to ask y'all for some help first. I am open to buy a new MPPT controller that goes over 75V and return the old one, only if that is the best thing to do.
controller link: https://www.amazon.com/Victron-Smart...ords=mppt&th=1
(MSX64) link: https://www.solarelectricsupply.com/...arex-MSX64.pdf
Thanks in advance!