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Improvement to Control and Reliability in Power systems

(Frequency regulation)

Amr Kamal

Prof Andrzej Ordys , Dr Olga Duran

Kingston University

UKACC PhD Presentation Showcase

Univ logo UKACC PhD Presentation Showcase Slide 2

Introduction

Frequency regulation

Keep it 50 Hz! Please!

Univ logo UKACC PhD Presentation Showcase Slide 3

How to make wind turbines “Grid Frequency friendly” ? Variable speed wind turbines

Inertial control Reverse control

Univ logo UKACC PhD Presentation Showcase Slide 4

Control system

Classical approach : using either PD controller or P controller with reset filter.

Simplified Model for DFIG and FPC wind turbine with supplementary control loops for fast primary response

Univ logo UKACC PhD Presentation Showcase Slide 5

Results + Future work

Propose a control approach replaces entirely the frequency regulation and the speed regulation loops in the classical approach.

Work on multi-area system and for turbulent wind speeds.

MPC controller

Δf

dΔf/dt

Results:

Simulation showing that the proposed scheme improves the frequency response after a sudden changes in load.