Direct Design Approach for Virtual Oscillator Control Synchronisation Condition & Parameter Selection using Describing Functions

Virtual Oscillator Controls (VOCs) allow inverters to self-synchronise and form robust and stable microgrids. The existing design methodology requires an iterative tuning of key design parameters with time domain simulations required at each step. This paper presents an improved design methodology b...

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Bibliographic Details
Main Authors: McKone, Robert P. P., Wolfs, Peter J., Palmer, Edward
Format: Conference Proceeding
Language:English
Subjects:
Admittance
Automatic Control
Control Design
Decentralized Control
Design Methodology and Nonlinear Systems
Impedance
Inverters
Iterative methods
Mathematical model
Oscillators
Synchronization
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Description
Summary:Virtual Oscillator Controls (VOCs) allow inverters to self-synchronise and form robust and stable microgrids. The existing design methodology requires an iterative tuning of key design parameters with time domain simulations required at each step. This paper presents an improved design methodology based on a per unit approach, Describing Functions (DFs) and control systems stability concepts. Direct calculation of key VOC parameters are derived, and this methodology is confirmed by simulation studies.
ISSN:2474-1507
DOI:10.1109/AUPEC.2018.8757993