Frequency Regulation Provided by Doubly Fed Induction Generator Based Variable-Speed Wind Turbines Using Inertial Emulation and Droop Control in Hybrid Wind–Diesel Power Systems DOI Creative Commons
Muhammad Usman Asad, José A. Sánchez

Applied Sciences, Journal Year: 2025, Volume and Issue: 15(10), P. 5633 - 5633

Published: May 18, 2025

To modernize electrical power systems on isolated islands, countries around the world have increased their interest in combining green energy with conventional plants. Wind (WE) is most adopted renewable source due to its technical readiness, competitive cost, and environmentally friendly characteristics. Despite this, a high penetration of WE could affect stability. Moreover, these island face frequency deviation issues when operating hybrid generation mode. Generally, under contingency or transient conditions for wind–diesel (WDPSs), it only diesel generator that provides inertial support regulation (FR) because wind turbines are unable provide inertia themselves. Frequency deviations can exceed pre-defined grid code limits during severe windy generator’s not always sufficient. overcome this issue, we propose control strategy named emulation proportional (EI&P) Variable-Speed Turbines (VSWTs). VSWTs also contribute FR by releasing synthetic uncertainties. In addition, enhance effectiveness smoothness blade pitch angle WTs, compensation (PC) loop proposed paper. The aim study was optimal primary regulations (WDPSs). Therefore, WDPS San Cristobal Island considered study. achieve such goals, used above-mentioned controls (EI&P PC) optimally tuned them using Student-Psychology-Based Algorithm (SPBA). algorithm ability best optimum controller gain combinations loops. As result, FD reduced 1.05 Hz, other quality indices, as integral absolute error (IAE), square (ISE), index (Z), were improved 159.65, 16.75, 83.80%, respectively. PC control, which further simplified exhaustive searches, resulted reduction complexity. validate results, approach tested different sets perturbations (sudden loss gradual increase speed random behavior). Furthermore, simultaneously real-world scenarios, like various load imbalances, variations, combinations. Simulink results showed significant improvement minimizing transients.

Language: Английский

Optimal Design of Hybrid Renewable Energy Conversion Systems Using Two Configurations and Four Different Algorithms for a Rural Village in Egypt DOI
Mohamed A. Torad,

Sayed H. A. Elbanna,

Mahmoud A. El‐Dabah

et al.

Research Square (Research Square), Journal Year: 2025, Volume and Issue: unknown

Published: April 3, 2025

Abstract Decentralized energy systems can significantly enhance living circumstances in remote areas without a grid connection. This paper formulates hybrid renewable model for rural Egyptian village. The system includes PV, wind, biomass generator, battery storage, and power converters. reliability efficiency of the were conducted, with HOMER Pro attaining loss supply probability (LPSP) 0.0000% surplus percentage 29.3827%. In comparison, CO FVIM exhibited LPSPs 1.4877% 2.5724%, along excess percentages 5.9408% 7.3600%, whilst SBOA demonstrated an LPSP 2.6733% 7.3229%.SBOA reported net present cost $3,560,416.88, $0.121 per kilowatt-hour, annual greenhouse gas emissions 688.122 tons. achieved NPCs $3,572,813.22 $3,587,924.56, COEs $0.123/kWh $0.124/kWh, 690.315 692.874 tons/year, respectively. conducted $3,671,711 NPC, $0.1/kWh COE, 11.016 tons/year GHG emissions, demonstrating advantages biomass-based sustainable development.

Language: Английский

Citations

0
Frequency Regulation Provided by Doubly Fed Induction Generator Based Variable-Speed Wind Turbines Using Inertial Emulation and Droop Control in Hybrid Wind–Diesel Power Systems DOI Creative Commons
Muhammad Usman Asad, José A. Sánchez

Applied Sciences, Journal Year: 2025, Volume and Issue: 15(10), P. 5633 - 5633

Published: May 18, 2025

To modernize electrical power systems on isolated islands, countries around the world have increased their interest in combining green energy with conventional plants. Wind (WE) is most adopted renewable source due to its technical readiness, competitive cost, and environmentally friendly characteristics. Despite this, a high penetration of WE could affect stability. Moreover, these island face frequency deviation issues when operating hybrid generation mode. Generally, under contingency or transient conditions for wind–diesel (WDPSs), it only diesel generator that provides inertial support regulation (FR) because wind turbines are unable provide inertia themselves. Frequency deviations can exceed pre-defined grid code limits during severe windy generator’s not always sufficient. overcome this issue, we propose control strategy named emulation proportional (EI&P) Variable-Speed Turbines (VSWTs). VSWTs also contribute FR by releasing synthetic uncertainties. In addition, enhance effectiveness smoothness blade pitch angle WTs, compensation (PC) loop proposed paper. The aim study was optimal primary regulations (WDPSs). Therefore, WDPS San Cristobal Island considered study. achieve such goals, used above-mentioned controls (EI&P PC) optimally tuned them using Student-Psychology-Based Algorithm (SPBA). algorithm ability best optimum controller gain combinations loops. As result, FD reduced 1.05 Hz, other quality indices, as integral absolute error (IAE), square (ISE), index (Z), were improved 159.65, 16.75, 83.80%, respectively. PC control, which further simplified exhaustive searches, resulted reduction complexity. validate results, approach tested different sets perturbations (sudden loss gradual increase speed random behavior). Furthermore, simultaneously real-world scenarios, like various load imbalances, variations, combinations. Simulink results showed significant improvement minimizing transients.

Language: Английский

Citations

0