The Relative Gain Array (RGA) is a classical widely-used[citation needed] method for determining the best input-output pairings for multivariable process control systems. It has many practical open-loop and closed-loop control applications and is relevant to analyzing many fundamental steady-state closed-loop system properties such as stability and robustness.
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Relative Gain Array (RGA)
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Relative Gain Array RGA and Input Output Pairing
12 min
Beginner
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Theory
The RGA is a tool used by process engineers to determine how to pair inputs and outputs during controller design to strive for better performance and robustn...
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Relative Gain Array RGA Analysis
6 min
Beginner
Video
Theory
I cover how you can find the relative gain array from the steady state gain array, and interpret the results to determine which input to pair with which outp...
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