Oscillatory Power Control and Consensus in Unbalanced Networks Using Grid Forming Inverters
- University of Central Florida, Orlando, FL (United States)
In this paper, a state-space nonlinear control previously designed for balanced operation of grid-forming (GFM) inverters is extended to unbalanced operations. Unbalanced voltages and currents are analyzed, and their time-varying direct, quadrature, and zero components are parameterized in terms of six constant parameters. These parameters provide primary control design choices for not only an inverter’s terminal voltage but also its injections of both real and oscillatory power. It is shown that the proposed GFM control can precisely achieve a desired balanced terminal voltage under unbalanced loads. It is also shown that, by allowing the terminal voltage to be slightly unbalanced, oscillatory power can be adaptively minimized. Finally, it is illustrated that oscillatory power can also be shared among multiple GFM inverters. Case studies and their simulations demonstrate that the proposed GFM control is effective in meeting the aforementioned objectives.
- Research Organization:
- Univ. of Central Florida, Orlando, FL (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC)
- Grant/Contract Number:
- EE0009028; EE0009152; EE0009339
- OSTI ID:
- 2324773
- Alternate ID(s):
- OSTI ID: 2326015
- Journal Information:
- IEEE Power & Energy Society General Meeting, Vol. 2023; Conference: 2023 IEEE Power & Energy Society General Meeting (PESGM), Orlando, FL (United States), 16-20 Jul 2023; ISSN 1944-9925
- Publisher:
- IEEECopyright Statement
- Country of Publication:
- United States
- Language:
- English
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