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[IEEE 2019 14th IEEE Conference on Industrial Electronics and Applications (ICIEA) - Xi'an, China (2019.6.19-2019.6.21)] 2019 14th IEEE Conference on Industrial Electronics and Applications (ICIEA) - Robust Predictive Current Control for Photovoltaic Energy Storage System Based on Second-order Tracking Differentiator
摘要： Aiming at the problem of DC bus voltage fluctuation due to the change of photovoltaic (PV) output power, load mutations and nonlinear loads connection in DC microgrid system including PV power generation and energy storage, the robust predictive current control (PCC) for photovoltaic energy storage system based on second-order tracking differentiator (STD) is proposed in this paper. The traditional current loop controller based on PI is replaced by the controller based on the PCC. And the second-order tracking differentiator for the DC bus voltage control system of bidirectional DC-DC converters is designed. The second-order tracking differentiator can track the equivalent disturbance current quickly in the system without adding additional current sensors. Feed forward method based on the STD is proposed to improve the disturbance rejection capability of the system. The simulation results show that the DC bus voltage fluctuations can be suppressed effectively by using the predictive current control based on second-order tracking differentiator, and the dynamic performance and robustness of the system are improved.
关键词： Photovoltaic Energy Storage System,Second-order Tracking Differentiator,Predictive Current Control,Bidirectional DC-DC Converter
更新于2025-09-16 10:30:52
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[IEEE 2019 AEIT International Annual Conference (AEIT) - Florence, Italy (2019.9.18-2019.9.20)] 2019 AEIT International Annual Conference (AEIT) - Predictive Current Control for a Neutral Point Clamped Inverter Considering SiC-MOSFET as Switches and Using a Photovoltaic Power Source
摘要： This paper proposes a predictive current control of a three-phase 3-level neutral point clamped (3L-NPC) inverter. The main contribution of this paper is the analysis of the effects of the DC LINK voltage on the output of the 3L-NPC on a specific class of power semiconductor, namely SiC-MOSFET. The power source of the DC LINK is a photovoltaic array, the process to choose the number of series panels is a heuristic method. All analyses and results were conducted through simulations, using Matlab/Simulink.
关键词： Neutral point clamped converter,predictive current control,photovoltaic system,SiC-MOSFET
更新于2025-09-16 10:30:52