Robustification of the H∞controller combined with fuzzy logic and PI&PID-Fd for hybrid control of Wind Energy Conversion System Connected to the Power Grid Based on DFIG

This paper proposes a strategy for hybrid control of variable speed wind turbines connected to the electrical grid, using a Double Fed Induction Generator (DFIG). An efficient validation approach is presented in three steps. The first step concerns the comparison of performances between Fuzzy Logic...

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Autores principales:	Boaz Wadawa, Youssef Errami, Abdellatif Obbadi, Smail Sahnoun
Formato:	article
Lenguaje:	EN
Publicado:	Elsevier 2021
Materias:	Wind Energy Conversion System (WECS) PID H infinity (H∞) Fuzzy Logic (FL) Hybrid control Vector control (VC) Electrical engineering. Electronics. Nuclear engineering TK1-9971
Acceso en línea:	https://doaj.org/article/c4473319706847008e266da95bee141a
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spelling	oai:doaj.org-article:c4473319706847008e266da95bee141a2021-11-22T09:15:17ZRobustification of the H∞controller combined with fuzzy logic and PI&PID-Fd for hybrid control of Wind Energy Conversion System Connected to the Power Grid Based on DFIG2352-484710.1016/j.egyr.2021.10.120https://doaj.org/article/c4473319706847008e266da95bee141a2021-11-01T00:00:00Zhttp://www.sciencedirect.com/science/article/pii/S2352484721011392https://doaj.org/toc/2352-4847This paper proposes a strategy for hybrid control of variable speed wind turbines connected to the electrical grid, using a Double Fed Induction Generator (DFIG). An efficient validation approach is presented in three steps. The first step concerns the comparison of performances between Fuzzy Logic (FL), H infinity (H∞) and Integral Proportional action (PI) controllers. In a system context based on the DFIG direct vector control structure, the strengths of H∞are reinforced in the second step by implementing two new advanced mixed controllers, namely the FL-H∞and the combination of the PI, the Proportional Integral Derivative (PID) action, the Filter Derivative (Fd) action and the H∞(PI&PID-Fd)-H∞. The second step, based on a simplified system of indirect vector control structure of the DFIG, allows the performance of the (PI&PID-Fd)-H∞to be compared with that of the FL-H∞. In contrast to the latter, it emerges that, in addition to its simplicity of implementation and the reduction in calculation and simulation time, the (PI&PID-Fd)-H∞is very reassuring in terms of robustness against mixed uncertainties, stability, precision, tracking and decoupling between active (PS) and reactive (QS)power. This makes (PI&PID-Fd)-H∞a very advantageous choice for the design of the proposed hybrid control system. The final step gives a more real-life picture of hybrid control of the wind system as follows, a random wind model is considered, an FL regulates the Maximum Power Point Tracking (MPPT) of the turbine model, the PI-H∞and (PID-Fd)-H∞control the Ps and Qs on the nominal DFIG model via a Rotor Side Converter (RSC), an FL regulates the DC-BUS voltage and the H∞control the currents via a Grid Side Converter (GSC) and filter. According to the results, and in contrast to a conventional PI control system, the hybrid control system offered has very good performance, particularly with regard to, for example, optimal extraction of energy from the wind, the currents fed into the grid are well balanced, the Total Harmonic Distortion (THD) is reduced and the cos ϕ is almost equal to unity. In addition, a good compromise between stability and expected performance is ensured. Consequently, the proposed strategy has reasonable and very favourable advantages for the optimisation of energy conversion in grid-connected wind energy systems. The results are developed in the MATLAB/Simulink environment.Boaz WadawaYoussef ErramiAbdellatif ObbadiSmail SahnounElsevierarticleWind Energy Conversion System (WECS)PIDH infinity (H∞)Fuzzy Logic (FL)Hybrid controlVector control (VC)Electrical engineering. Electronics. Nuclear engineeringTK1-9971ENEnergy Reports, Vol 7, Iss , Pp 7539-7571 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Wind Energy Conversion System (WECS) PID H infinity (H∞) Fuzzy Logic (FL) Hybrid control Vector control (VC) Electrical engineering. Electronics. Nuclear engineering TK1-9971
spellingShingle	Wind Energy Conversion System (WECS) PID H infinity (H∞) Fuzzy Logic (FL) Hybrid control Vector control (VC) Electrical engineering. Electronics. Nuclear engineering TK1-9971 Boaz Wadawa Youssef Errami Abdellatif Obbadi Smail Sahnoun Robustification of the H∞controller combined with fuzzy logic and PI&PID-Fd for hybrid control of Wind Energy Conversion System Connected to the Power Grid Based on DFIG
description	This paper proposes a strategy for hybrid control of variable speed wind turbines connected to the electrical grid, using a Double Fed Induction Generator (DFIG). An efficient validation approach is presented in three steps. The first step concerns the comparison of performances between Fuzzy Logic (FL), H infinity (H∞) and Integral Proportional action (PI) controllers. In a system context based on the DFIG direct vector control structure, the strengths of H∞are reinforced in the second step by implementing two new advanced mixed controllers, namely the FL-H∞and the combination of the PI, the Proportional Integral Derivative (PID) action, the Filter Derivative (Fd) action and the H∞(PI&PID-Fd)-H∞. The second step, based on a simplified system of indirect vector control structure of the DFIG, allows the performance of the (PI&PID-Fd)-H∞to be compared with that of the FL-H∞. In contrast to the latter, it emerges that, in addition to its simplicity of implementation and the reduction in calculation and simulation time, the (PI&PID-Fd)-H∞is very reassuring in terms of robustness against mixed uncertainties, stability, precision, tracking and decoupling between active (PS) and reactive (QS)power. This makes (PI&PID-Fd)-H∞a very advantageous choice for the design of the proposed hybrid control system. The final step gives a more real-life picture of hybrid control of the wind system as follows, a random wind model is considered, an FL regulates the Maximum Power Point Tracking (MPPT) of the turbine model, the PI-H∞and (PID-Fd)-H∞control the Ps and Qs on the nominal DFIG model via a Rotor Side Converter (RSC), an FL regulates the DC-BUS voltage and the H∞control the currents via a Grid Side Converter (GSC) and filter. According to the results, and in contrast to a conventional PI control system, the hybrid control system offered has very good performance, particularly with regard to, for example, optimal extraction of energy from the wind, the currents fed into the grid are well balanced, the Total Harmonic Distortion (THD) is reduced and the cos ϕ is almost equal to unity. In addition, a good compromise between stability and expected performance is ensured. Consequently, the proposed strategy has reasonable and very favourable advantages for the optimisation of energy conversion in grid-connected wind energy systems. The results are developed in the MATLAB/Simulink environment.
format	article
author	Boaz Wadawa Youssef Errami Abdellatif Obbadi Smail Sahnoun
author_facet	Boaz Wadawa Youssef Errami Abdellatif Obbadi Smail Sahnoun
author_sort	Boaz Wadawa
title	Robustification of the H∞controller combined with fuzzy logic and PI&PID-Fd for hybrid control of Wind Energy Conversion System Connected to the Power Grid Based on DFIG
title_short	Robustification of the H∞controller combined with fuzzy logic and PI&PID-Fd for hybrid control of Wind Energy Conversion System Connected to the Power Grid Based on DFIG
title_full	Robustification of the H∞controller combined with fuzzy logic and PI&PID-Fd for hybrid control of Wind Energy Conversion System Connected to the Power Grid Based on DFIG
title_fullStr	Robustification of the H∞controller combined with fuzzy logic and PI&PID-Fd for hybrid control of Wind Energy Conversion System Connected to the Power Grid Based on DFIG
title_full_unstemmed	Robustification of the H∞controller combined with fuzzy logic and PI&PID-Fd for hybrid control of Wind Energy Conversion System Connected to the Power Grid Based on DFIG
title_sort	robustification of the h∞controller combined with fuzzy logic and pi&pid-fd for hybrid control of wind energy conversion system connected to the power grid based on dfig
publisher	Elsevier
publishDate	2021
url	https://doaj.org/article/c4473319706847008e266da95bee141a
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_version_	1718417819350073344

Robustification of the H∞controller combined with fuzzy logic and PI&PID-Fd for hybrid control of Wind Energy Conversion System Connected to the Power Grid Based on DFIG

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