TY - GEN
T1 - Modulated Model Predictive Control of an LC-Filtered Neutral-Point Clamped Converter
AU - Yaramasu, Venkata
AU - Dekka, Apparao
AU - Dragicevi, Tomislav
AU - Zheng, Changming
AU - Rodriguez, Jose
N1 - Publisher Copyright:
© 2020 IEEE.
PY - 2020/11/9
Y1 - 2020/11/9
N2 - An LC-filtered neutral-point clamped (NPC) converter is commonly used in distributed generation, uninterrupt- able power supplies and dynamic voltage restorers. A multiobjective modulated modelpredictive voltage control scheme is proposed to control the load voltages and neutral-point voltage of an LC-filtered NPC converter. In this work, the load voltages and converter currents are controlled simultaneously to improve the load voltage quality. An exact discrete-time model of power conversion system is used to predict the future behavior of state variables. These predictions are evaluated by a triple-objective duty-cycle optimized cost function. The three stationary voltage vectors corresponding to the optimal cost function are synthesized by the space vector modulation. The performance of the proposed control scheme is verified through MATLAB simulation results with linearand nonlinear loads. The results indicate fixed switching frequency operation, fast transient response, and low steady-state errors.
AB - An LC-filtered neutral-point clamped (NPC) converter is commonly used in distributed generation, uninterrupt- able power supplies and dynamic voltage restorers. A multiobjective modulated modelpredictive voltage control scheme is proposed to control the load voltages and neutral-point voltage of an LC-filtered NPC converter. In this work, the load voltages and converter currents are controlled simultaneously to improve the load voltage quality. An exact discrete-time model of power conversion system is used to predict the future behavior of state variables. These predictions are evaluated by a triple-objective duty-cycle optimized cost function. The three stationary voltage vectors corresponding to the optimal cost function are synthesized by the space vector modulation. The performance of the proposed control scheme is verified through MATLAB simulation results with linearand nonlinear loads. The results indicate fixed switching frequency operation, fast transient response, and low steady-state errors.
KW - Distributed generation
KW - LC filter
KW - modulated model predictive control
KW - neutral-point clamped converter
KW - uninterruptible power supply
KW - voltage control
UR - http://www.scopus.com/inward/record.url?scp=85098598784&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85098598784&partnerID=8YFLogxK
U2 - 10.1109/COMPEL49091.2020.9265779
DO - 10.1109/COMPEL49091.2020.9265779
M3 - Conference contribution
AN - SCOPUS:85098598784
T3 - 2020 IEEE 21st Workshop on Control and Modeling for Power Electronics, COMPEL 2020
BT - 2020 IEEE 21st Workshop on Control and Modeling for Power Electronics, COMPEL 2020
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 21st IEEE Workshop on Control and Modeling for Power Electronics, COMPEL 2020
Y2 - 9 November 2020 through 12 November 2020
ER -