Controlling current and voltage type interfaces in power‐hardware‐in‐the‐loop simulations. Issue 10 (1st October 2014)

• Record Type: Journal Article
• Authors: Dargahi, Mahdi; Ghosh, Arindam; Davari, Pooya; Ledwich, Gerard
• Is Part Of: IET power electronics. Volume 7:Issue 10(2014)
• Page Start: 2618
• Page End: 2627
• Publication Date: 2014-10-01
• Subjects: voltage control -- electric current control -- power convertors -- power distribution control -- real‐time systems -- power system simulation -- amplification -- digital simulation; current control -- voltage type interface control -- power hardware‐in‐the‐loop simulation -- power system -- distributed generator -- network complexity -- practical testing -- physical network -- real‐life hardware devices -- network splitting -- PHIL simulation -- voltage source converter -- signal amplification -- real‐time digital computer simulation; Power electronics -- Periodicals; 621.31705
• DOI: 10.1049/iet-pel.2013.0848
• Languages: English
• ISSNs: 1755-4535

Abstract

Abstract : The usual practice to study a large power system is through digital computer simulation. However, the impact of large scale use of small distributed generators on a power network cannot be evaluated strictly by simulation since many of these components cannot be accurately modelled. Moreover, the network complexity makes the task of practical testing on a physical network nearly impossible. This study discusses the paradigm of interfacing a real‐time simulation of a power system to real‐life hardware devices. This type of splitting a network into two parts and running a real‐time simulation with a physical system in parallel is usually termed as power‐hardware‐in‐the‐loop (PHIL) simulation. The hardware part is driven by a voltage source converter that amplifies the signals of the simulator. In this paper, the effects of suitable control strategy on the performance of PHIL and the associated stability aspects are analysed in detail. The analyses are validated through several experimental tests using an real‐time digital simulator.