Interface algorithm development for PHIL simulations of MMC‐HVDC devices via real‐time impedance matching. Issue 16 (19th December 2018)

• Record Type: Journal Article
• Authors: Jiang, Shouqi; Li, Guoqing; Xin, Yechun; Wang, Lixin; Wang, Weiru
• Is Part Of: Journal of engineering. Volume 2019:Issue 16(2019)
• Page Start: 3234
• Page End: 3239
• Publication Date: 2018-12-19
• Subjects: impedance matching -- power system simulation -- power system stability -- HVDC power convertors; interface algorithm development -- PHIL simulations -- MMC‐HVDC devices -- power hardware‐in‐the‐loop simulation -- digital simulations -- physical simulations -- multilevel‐converter‐based high‐voltage -- direct current technology -- damping impedance method interface algorithm -- real‐time impedance matching method -- PHIL simulation system -- power interface -- MMC converter station -- Thevenin equivalent models -- test impedance -- DIM interface algorithm -- compensation control method -- interface delay -- digital simulation results -- active power; Engineering -- Periodicals; Engineering; Electronic journals; Periodicals; 620.005
• DOI: 10.1049/joe.2018.8691
• Languages: English
• ISSNs: 2051-3305

Abstract

Abstract : Power hardware‐in‐the‐loop (PHIL) simulation combines the advantages of digital and physical simulations, which is an effective method to study and analyse modular multi‐level‐converter‐based high‐voltage direct current (MMC‐HVDC) technology. For the damping impedance method (DIM) interface algorithm, a real‐time impedance matching method is proposed to improve the stability and accuracy of the PHIL simulation system. The equivalent impedance between the power interface and the MMC converter station is calculated according to the voltage difference and current between them, and the equivalent impedance parameters of MMC, in both de‐blocking and blocking modes, are obtained by the Thevenin equivalent models; then the information of the hardware under test impedance is used to update the DIM interface algorithm. In addition, a compensation control method for interface delay is used to reduce the system error. The excellent performance of stability and accuracy is verified by digital simulation results, which show that the proposed DIM interface algorithm is able to keep the PHIL simulation system stable under different kinds of disturbances and the maximum relative error of the active power <1.2%.