How to connect controlled sources to Universal Bridge

5 views (last 30 days)
I have a Universal Bridge as inverter. I want to connect output of a PV source via Controlled sources to DC input of this Universal-Bridge.
I use Voltage-controlled source to read out the voltage values form PV and Current-controlled source to read out the current values. When I connect them to input of universal bridge seperately, it works properly, but If i want to connect both of the the values are not correct anymore.
Anybody has any Idee ?
(I need to use this connection , because the PV system has a seperate universal Bridge and seperate control system for its DC-Dc booster)

Answers (1)

Joel Van Sickel
Joel Van Sickel on 22 May 2023
In your case, you are trying to apply a controlled current source and a controlled voltage source. This is physically and mathmatically impossible. For a given voltage, a circuit will have a given current. For a given current, a circuit will have a given voltage. You can only control one of these variables at a time, so in your case I would choose a voltage source only. The universal bridge will work with a controlled voltage source attatched to it.
Abouzar on 22 May 2023
Thank you for the response.
The voltage source is not enough alone. I need to see the power changes of inverter, depending on the input current, which is related to irradiation.
Is there any suggestions?
Joel Van Sickel
Joel Van Sickel on 9 Jun 2023
The rest of the power changes should come from you controlling the inverter properly. The inverter can pull different currents from a given voltage based on how it is operated, but trying to force it to do this with a controlled current source won't work.

Sign in to comment.


Find more on Electrical Block Libraries in Help Center and File Exchange

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!