Hi, i have a small 1.5kW wind turbine which i have hooked up to an turbine protection box. It converts 3 phase wild AC into DC with the addition of a dump load output for grid failures and over speeding.
The box is designed to stop the DC voltage of the turbine going above 600v, protecting the grid tie inverter as this unit has a max of 600v. This is achieved with an IGBT which switches a 3kW dump load resistor on at 515-530v.
This is all working as it should, however i am looking to change my grid tie inverter to a unit which can only receive a max of 500v instead of 600v. I am looking for an IGBT which can switch on the dump load at 400v instead of 500v. I don't have the part number for the IGBT fitted currently but i will get that soon and amend this post.
Any help would be appreciated, i have looked online at various parts but with my limited knowledge of electronics i am struggling to find a solution.
Thanks to anyone who reads this post.
B. Williamson
The box is designed to stop the DC voltage of the turbine going above 600v, protecting the grid tie inverter as this unit has a max of 600v. This is achieved with an IGBT which switches a 3kW dump load resistor on at 515-530v.
This is all working as it should, however i am looking to change my grid tie inverter to a unit which can only receive a max of 500v instead of 600v. I am looking for an IGBT which can switch on the dump load at 400v instead of 500v. I don't have the part number for the IGBT fitted currently but i will get that soon and amend this post.
Any help would be appreciated, i have looked online at various parts but with my limited knowledge of electronics i am struggling to find a solution.
Thanks to anyone who reads this post.
B. Williamson