Control parameterisation for POD via software-in-the-loop simulation

Ha Thi Nguyen, Guangya Yang*, Arne Hejde Nielsen, Peter Højgaard Jensen, Carlos F.M. Coimbra

*Corresponding author for this work

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The parameter optimisation of designed controllers for power systems is always a big concern and needs a lot of effort of researchers especially when the electricity grid becomes larger and more complex. This study proposes a control parameterisation using genetic algorithms (GAs) for power oscillation damping (POD) incorporating synchronous condensers (SCs) via software-in-the-loop simulation to enhance the damping and frequency stability for low-inertia systems. A closed-loop interfaced setup among real-time digital simulator, MATLAB, and OLE for process communication running in real time is analysed and implemented to optimise the POD parameters of a SC. Furthermore, a Prony technique based on the system measurement is applied to find out the frequency and damping ratio of the dominant oscillation mode. The POD optimal parameters are determined by the GA objective function that maximises the damping ratio of the dominant oscillation mode. The effectiveness of the proposed method in damping power oscillations and frequency stability improvement is verified through simulation results of the future western Danish power system. Simulation results demonstrate that the proposed approach offers good performance for parameter optimisation of the POD.
Original languageEnglish
JournalThe Journal of Engineering
Issue number18
Pages (from-to)4864-4868
Number of pages5
Publication statusPublished - 2019
Event7th International Conference on Renewable Power Generation - DTU, Kgs. Lyngby, Denmark
Duration: 26 Sep 201827 Sep 2018
Conference number: 7


Conference7th International Conference on Renewable Power Generation
CityKgs. Lyngby

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