The electronic realization of synchronous machines: model matching, angle tracking and energy shaping techniques

Open access
Date
2020-04Type
- Journal Article
Citations
Cited 18 times in
Web of Science
Cited 21 times in
Scopus
ETH Bibliography
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Abstract
In this paper, we investigate grid-following and grid-forming control strategies starting from the nonlinear dynamics of the DC/AC converter. An electronic synchronous machine is an inverter whose the integral of the DC-bus measurement generates the angle of the instantaneous modulation vector. We show how this minimal augmentation represents an exact physical realization without requiring inner current loops. The DC-link capacitance becomes the equivalent rotational inertia of the converter. Additional features such as a novel phase-locked-loop design, a voltage controller and a power set-point tracking mechanism are then designed via two energy-shaping techniques. One energy function is used to implement a grid-following control scheme, via the inherent synchronizing torque, while the other is used to implement a grid-forming control scheme, by uncovering active-power droop. The results are first derived systematically, and then evaluated experimentally on a front-to-front setup. Show more
Permanent link
https://doi.org/10.3929/ethz-b-000331022Publication status
publishedExternal links
Journal / series
IEEE Transactions on Power ElectronicsVolume
Pages / Article No.
Publisher
IEEESubject
synchronization; power conversion; SYNCHRONOUS MACHINES (ELECTRICAL MACHINES); Control system design; POWER ELECTRONICS; phase locked loopsOrganisational unit
02140 - Dep. Inf.technologie und Elektrotechnik / Dep. of Inform.Technol. Electrical Eng.09478 - Dörfler, Florian / Dörfler, Florian
Funding
160573 - Plug-and-Play Control & Optimization in Microgrids (SNF)
Related publications and datasets
Is cited by: https://doi.org/10.3929/ethz-b-000419315
Notes
Submitted to IEEE Transactions on Power Electronics, June 21, 2019. Revision R1More
Show all metadata
Citations
Cited 18 times in
Web of Science
Cited 21 times in
Scopus
ETH Bibliography
yes
Altmetrics