TY - GEN
T1 - Model-Predictive Control to Minimize Ground Potentials in Transformerless Grid-Connected 5-Level Power Electronic Converters
AU - Saleh, S. A.
AU - Ahshan, R.
AU - Al-Durra, A.
N1 - Publisher Copyright:
© 2021 IEEE.
PY - 2021/4/27
Y1 - 2021/4/27
N2 - This paper presents the development and testing of a model-predictive control (MPC) for three phase (3φ) transformerless grid-connected 5-level power electronic converters (PECs). The proposed MPC employs a discrete-time model of 5-level PECs to predict the future values of the grid-injected currents and ground potential. predicted values of the grid-injected currents and ground potential are used to set the reference signals to minimize a cost function, which is formulated in terms of the command and actual grid-injected current and ground potential. The tested MPC is implemented for transformerless grid-connected diode-clamped and flying-capacitor 5-level PECs under different conditions. Test results show that the developed MPC can operate transformerless grid-connected PECs to ensure accurate, dynamic, and fast responses to changes in the power injected into the grid. Furthermore, the tested control demonstrates a good ability to minimize ground potentials during steady-state and step changes in the power delivered to/from the grid.
AB - This paper presents the development and testing of a model-predictive control (MPC) for three phase (3φ) transformerless grid-connected 5-level power electronic converters (PECs). The proposed MPC employs a discrete-time model of 5-level PECs to predict the future values of the grid-injected currents and ground potential. predicted values of the grid-injected currents and ground potential are used to set the reference signals to minimize a cost function, which is formulated in terms of the command and actual grid-injected current and ground potential. The tested MPC is implemented for transformerless grid-connected diode-clamped and flying-capacitor 5-level PECs under different conditions. Test results show that the developed MPC can operate transformerless grid-connected PECs to ensure accurate, dynamic, and fast responses to changes in the power injected into the grid. Furthermore, the tested control demonstrates a good ability to minimize ground potentials during steady-state and step changes in the power delivered to/from the grid.
KW - Multi-level power electronic converters
KW - ground potentials
KW - model predictive control
KW - power system grounding
UR - http://www.scopus.com/inward/record.url?scp=85105707279&partnerID=8YFLogxK
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U2 - 10.1109/ICPS51807.2021.9416603
DO - 10.1109/ICPS51807.2021.9416603
M3 - Conference contribution
AN - SCOPUS:85105707279
T3 - Conference Record - Industrial and Commercial Power Systems Technical Conference
BT - 2021 IEEE/IAS 57th Industrial and Commercial Power Systems Technical Conference, I and CPS 2021
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 57th IEEE/IAS Industrial and Commercial Power Systems Technical Conference, I and CPS 2021
Y2 - 27 April 2021 through 30 April 2021
ER -