NDLI: Regulation of active and reactive power of a virtual oscillator controlled inverter

Content Provider	IET Digital Library
Author	Ali, Muhammad Li, Jiacheng Callegaro, Leonardo Nurdin, Hendra I. Fletcher, John E.
Abstract	Utilisation of variable distributed energy sources in a microgrid necessitates control of active power and is enhanced by the control of reactive power. A control technique to regulate the active and reactive power of a virtual oscillator controlled inverter is presented. Current feedback gain of the virtual oscillator controlled inverter is used to regulate the active or reactive power. In order to achieve the desired power set-point, a PI controller is used to tune the current feedback gain. An approximate local stability analysis is presented using the system linearisation and eigenvalues analysis. Constraints on the virtual oscillator controller and system parameters are identified to ensure the stability of the system. Global stability of the system is investigated by determining a Lyapunov function using the sum-of-squares technique. Simulation and experimental results are presented for both the cases of active and reactive power control of a virtual oscillator controlled inverter to verify the analytical analysis and to demonstrate the effectiveness of the proposed control scheme.
Starting Page	62
Ending Page	69
Page Count	8
ISSN	17518687
Volume Number	14
e-ISSN	17518695
Issue Number	Issue 1, Jan (2020)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/iet-gtd/14/1
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/iet-gtd.2018.5752
Journal	IET Generation, Transmission & Distribution
Publisher Date	2019-11-13
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	Active Power Control Control of Electric Power System Control Scheme Control Technique Current Feedback Gain Desired Power Set-point Distributed Power Generation Eigen Values And Eigen Function Feedback Global Stability Invertors Lyapunov Function Lyapunov Method Microgrid System Oscillator PI Control PI Controller Power And Energy Control Power Generation Control Power System Control Reactive Power Control Reactive Power Regulation Stability Stability in Control Theory Sum-of-squares Technique Variable Distributed Energy Source Virtual Oscillator Controlled Inverter Virtual Oscillator Controller
Content Type	Text
Resource Type	Article
Subject	Control and Systems Engineering Energy Engineering and Power Technology Electrical and Electronic Engineering

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