PI and LQR controllers for Frequency Regulation including Wind Generation
2018; Institute of Advanced Engineering and Science (IAES); Volume: 8; Issue: 5 Linguagem: Inglês
10.11591/ijece.v8i5.pp3711-3721
ISSN2088-8708
AutoresSemaria Ruiz Álvarez, Julián Patiño, Jairo Espinosa,
Tópico(s)Wind Turbine Control Systems
Resumo<pre>The increasing use of renewable technologies such as wind turbines in power systems may require the contribution of these new sources into grid ancillary services, such as Load Frequency Control. Hence, this work dealt with the performance comparison of two traditional control structures, PI and <span>LQR</span>, for secondary regulation of Load Frequency Control with the participation of variable-speed wind turbines. For this purpose, the doubly-fed induction generator wind turbine was modeled with additional control loops for emulation of the inertial response of conventional machines for frequency regulation tasks. Performance of proposed strategies was verified through simulation in a benchmark adapted from the <span>WSCC</span> 3 machines 9-bus test system. Results showed overall superior performance for <span>LQR</span> controller, although requiring more strenuous control effort from conventional units than PI control.</pre>
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