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صفحه اصلی
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هشتمین کنفرانس بین المللی کنترل ، ابزار دقیق و اتوماسیون
A Hybrid Fuzzy-Predictive Control for Smooth Transition Between Operating Modes of Voltage Source Inverters
نویسندگان :
Sahba Moslemimoghadam
1
Qobad Shafiee
2
Mobin Naderi
3
Hassan Bevrani
4
1- دانشگاه کردستان
2- دانشگاه کردستان
3- دانشگاه کردستان
4- دانشگاه کردستان
کلمات کلیدی :
Fuzzy control, grid-connected mode, islanded mode, model-predictive control, smooth transition, voltage source inverter.
چکیده :
Inverter-based distributed generations (DGs) have emerged as an efficient solution for the exploitation of renewable energies. In addition to regular power generation in the grid presence, DG systems must be able to supply local loads during main grid outages. Hence, their inverters should be capable of operating in both grid-connected and islanded modes. These systems operate as current sources in the grid-connected mode and voltage sources for the load in the islanded mode. The transition between the operating modes can distort the voltage or current waveforms because of a frequency, phase, or amplitude mismatch between the inverter output voltage and the grid voltage. Therefore, for smooth transitions without abrupt changes and distortions, a comprehensive control method is required. In this paper, a hybrid fuzzy-predictive control strategy is proposed, which leads to improved inverter dynamic behavior in transitions. This improvement has been measured using various control criteria in the simulation, and mitigates total harmonic distortion (THD), improves steady-state error, and reduces the overshoot/undershoot of the inverter’s time response.
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بیشتر
ثمین همایش، سامانه مدیریت کنفرانس ها و جشنواره ها - نگارش 42.2.8