DC Bus - Base Voltage Specifications

On DC buses, the base kV defined is not LL nor is it LG. It is a DC average value. If the system you are defining is completely DC with nothing but DC sources, then defining the bus base voltage can be done by finding the rated DC voltage on the gear you are simulating, and then enter it for the bus.

However, if you are simulating a DC system that connects to an AC system through a rectifier or inverter, then the proper DC voltage (that works in line with rectifier and inverter equations) needs to be specified. For such systems, the DC voltage is related to the AC voltage under no load conditions as follows:

This equation includes the ripple on the DC bus, and is typically used on DC systems that do not include a large smoothing capacitor; systems such as HVDC and simple large rectifiers. If you know that the DC bus includes a DC bus capacitor, and that under loaded conditions ripple is minimal, you should use:

Base Voltage Consistency

DC buses that are connected using DC cables must have the same base kV. Consistency checks are included in the software that prevent differing kV buses to be connected by a DC cable.

More Information

Bus Data  
DC in EasyPower  
     

www.easypower.com

EasyPower LLC

7730 SW Mohawk St.

Tualatin, OR 97062

(503)655-5059

techsupport@easypower.com

feedback@easypower.com

EasyPower knowledge base

EasyPower Version 10.2

Copyright © 2019 EasyPower LLC. All Rights Reserved.

Help was last updated on 3/22/2019