Performance Analysis for Load Frequency Control of Interconnected Power Systems with Different Techniques

Abstract

In the interconnected power system, frequency is one of the most important criteria determining system stability. Since interconnected systems consist of more than one region, load frequency control (LFC) is very complicated. For this reason, load frequency control analysis has been performed for interconnected power systems consisting of two and four regions in this article. Vortex Search Algorithm (VSA), Salp Swarm Algorithm (SSA) and Sine Cosine Algorithm (SCA) are used to determine the filter coefficient proportional-integral-derivative controller (PID-N) parameters of these interconnected systems. The results obtained are analyzed for overshoot (OS), undershoot (US) and settling time (ST) values for each region. It is observed that different system performances are obtained using by these methods. In addition, all system performances are significantly improved with the selected methods.

Load Frequency Control in Power Systems Using the Most Valuable Player Algorithm

“…where B i represents the tie-line bias factor, ∆f i represents the deviation of the system frequency from the nominal value, and the difference between actual tie line power and its scheduled value is represented by the ∆P tie . (2,3) The controller employed is the PID controller which can be modelled conventionally as in Figure 3. The transfer function is given by where K p , K i and K d represent the proportional gain, integral gain and differential gain of the controller respectively (4,5) .…”