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- Title
Single‐phase Synchronous Inverter with Overcurrent Protection using Current Controller with Latched Limit Strategy.
- Authors
Sekizaki, Shinya; Yorino, Naoto; Sasaki, Yutaka; Zoka, Yoshifumi; Shimizu, Toshihisa; Nishizaki, Ichiro
- Abstract
This paper proposes a controller for single‐phase synchronous inverters (SSIs) that was designed to stabilize the performance of a grid while providing overcurrent protection during the occurrence of a fault. The proposed controller for an SSI eliminates the multiple feedback control loops consisting of voltage and current controllers under normal conditions to avoid the instability attributed to them. To output the designed voltage precisely calculated using the core circuit, including a swing equation and speed governor, we employ the latched limit strategy for the overcurrent protection, which is combined with a proportional resonance current controller. Numerical simulations and experiments demonstrated that the proposed controller provides the designed performance while ensuring overcurrent protection during normal operation. © 2023 The Authors. IEEJ Transactions on Electrical and Electronic Engineering published by Institute of Electrical Engineer of Japan and Wiley Periodicals LLC.
- Subjects
JAPAN; OVERCURRENT protection; ELECTRONIC publishing; PULSE width modulation transformers; CURRENT transformers (Instrument transformer)
- Publication
IEEJ Transactions on Electrical & Electronic Engineering, 2023, Vol 18, Issue 6, p1001
- ISSN
1931-4973
- Publication type
Article
- DOI
10.1002/tee.23765