Melath, Gopakumar ; Agarwal, Vivek (2021) An Inertia Emulation Scheme using a Non-linear Backstepping Controller to Enhance the DC Bus Voltage Stiffness of a Grid Tied DC Microgrid In: 2021 1st International Conference on Power Electronics and Energy (ICPEE), 2-3 Jan. 2021, Bhubaneswar, India.
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Official URL: http://doi.org/10.1109/ICPEE50452.2021.9358678
Related URL: http://dx.doi.org/10.1109/ICPEE50452.2021.9358678
Abstract
This paper presents an inertia (capacitance) emulation scheme using a non-linear backstepping controller to minimise the rate of change of voltage (ROCOV, dv/dt) when there are power disturbances in a DC microgrid (DC-MG). The proposed scheme is implemented in the bi-directional interlinking converter (BIC) which integrates the DC-MG with the utility network. The proposed backstepping based virtual inertia scheme is developed based on large signal model of the BIC and therefore guarantees large signal stability and good dynamic response in comparison with the conventional PI based inertia emulation schemes. The control scheme also ensures the unity power factor (upf) operation of the BIC. The simulation results, which demonstrate the efficacy of the proposed scheme considering large power disturbances are included.
| Item Type: | Conference or Workshop Item (Paper) |
|---|---|
| Source: | Copyright of this article belongs to Institute of Electrical and Electronics Engineers. |
| Keywords: | Non-Linear Backstepping Controller; Bidirectional Interlinking Converter (BIC); Rate of Change of Voltage (ROCOV); Virtual Inertia; Virtual Capacitance; Inertia Emulation ; DC Microgrid (DC-MG). |
| ID Code: | 115635 |
| Deposited On: | 22 Mar 2021 12:26 |
| Last Modified: | 22 Mar 2021 12:26 |
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