Digital real-time co-simulation platform of refined wind energy conversion system. (May 2020)

• Record Type: Journal Article
• Authors: Li, Bing; Zhao, Haoran; Gao, Shuning; Hu, Shuju
• Is Part Of: International journal of electrical power & energy systems. Volume 117(2020)
• Publication Date: 2020-05
• Subjects: OpenFAST -- RTDS -- Real-time co-simulation -- RTOS -- WECS; Electrical engineering -- Periodicals; Electric power systems -- Periodicals; Électrotechnique -- Périodiques; Réseaux électriques (Énergie) -- Périodiques; Electric power systems; Electrical engineering; Periodicals; 621.3
• DOI: 10.1016/j.ijepes.2019.105676
• Languages: English
• ISSNs: 0142-0615

Abstract

Highlights: Real-time operating system is an effective tool for real-time simulation. Digital communication interface is a cost-effective and flexible solution in a co-simulation system. Refined wind energy model can study the aeroelastic-electromechanical coupling. Mechanical vibration with the grid fault is affected by different power system strength. Abstract: This paper proposes a cost-effective digital real-time co-simulation platform that covers all the main dynamics of Wind Energy Conversion System (WECS). The proposed platform is based on Real-Time Digital Simulator (RTDS) and OpenFAST developed by National Renewable Energy Laboratory (NREL), which considers the coupling of aerodynamic, mechanical, and electromagnetic models in WECS. The detailed electromagnetic model is implemented in RTDS. Meanwhile, the detailed aerodynamic and mechanical models are implemented in OpenFAST. To guarantee the strict real-time characteristic of the proposed platform, OpenFAST is modified and implemented in the real-time operating system based on Xenomai. The digital communication interface between RTDS and OpenFAST is implemented by Real-Time Networking (RTnet), which is more cost-competitive compared with the conventional analogue communication interface. Finally, the accuracy of the platform is verified by real-time simulations.