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Dr. Hossein Saberi
Lead Engineer at LTA Research and Exploration

Basic Info

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Research Keywords & Expertise

0 Electric Drives
0 Renewable and Sustainable Energy
0 Power electronic
0 Power electronic control
0 Electric machinery

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Short Biography

Hossein Saberi received the B.S. degree from the Isfahan University of Technology, Isfahan, Iran, in 2009, the M.S. degree from the University of Tabriz, Tabriz, Iran, in 2013, and the Ph.D. degree from Louisiana State University, Baton Rouge, LA, USA, in 2018, all in electrical engineering. He joined an aerospace company in San Francisco Bay Area as a Lead Power Engineer in 2018. His area of expertise includes power electronics and its applications in microgrids, integration of renewable energy sources into power grids, adjustable speed drives, and electric machinery.

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Journal article
Published: 03 March 2021 in Sustainability
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An intrinsically stable microgrid, operated by inverter-interfaced distributed energy resources (I-DERs) is introduced in this paper. The microgrid is built upon a systematic design method, which is adapted from the operation of the synchronous machine (SM). The proposed method analogizes the dynamics of the dc-link in I-DERs to the rotor dynamics in synchronous generators (SGs) and utilizes the capacitor as energy storage. Thus, the proposed mechanism relaxes battery usage for frequency control, and by using the capacitive stored energy, provides a high fault ride-through capability, which is suitable for both on-grid and off-grid applications. Based on stability analysis of the SG and the dynamic state matrix eigenvalues for multimachine power system, the dc-link capacitor of I-DERs is characterized in the context of microgrid. The dc-link capacitor stores kinetic energy similar to the rotor of the SG and provides inertia in transients without the need of battery storage. The inverter angle responds to the change of the dc link voltage (energy). The dc-link voltage is then controlled similar to the field control pertaining to the SG. Finally, a governor-like mechanism is applied to maintain dc-link voltage stability. Simulation and experimental results are provided to show the effectiveness of the proposed design mechanisms.

ACS Style

Hossein Saberi; Hamidreza Nazaripouya; Shahab Mehraeen. Implementation of a Stable Solar-Powered Microgrid Testbed for Remote Applications. Sustainability 2021, 13, 2707 .

AMA Style

Hossein Saberi, Hamidreza Nazaripouya, Shahab Mehraeen. Implementation of a Stable Solar-Powered Microgrid Testbed for Remote Applications. Sustainability. 2021; 13 (5):2707.

Chicago/Turabian Style

Hossein Saberi; Hamidreza Nazaripouya; Shahab Mehraeen. 2021. "Implementation of a Stable Solar-Powered Microgrid Testbed for Remote Applications." Sustainability 13, no. 5: 2707.