One-step ahead model predictive controller of three-phase inverter for uninterruptible power supply applications

2014 ◽  
Author(s):  
Seok-Kyoon Kim ◽  
Chang Reung Park ◽  
Young Il Lee
Keyword(s):  
Power Supply ◽  
Model Predictive Controller ◽  
Uninterruptible Power Supply ◽  
Phase Inverter ◽  
Three Phase ◽  
Predictive Controller ◽  
One Step ◽  
Uninterruptible Power ◽  
Three Phase Inverter

scholarly journals Composite Energy Storage System with Photovoltaic Power Generation and Uninterruptible Power Supply Function

2013 ◽  
Vol 2013 ◽  
pp. 1-9 ◽  
Author(s):  
Jung-Min Kwon
Keyword(s):  
Power Generation ◽  
Power Supply ◽  
Storage System ◽  
Energy Storage System ◽  
Uninterruptible Power Supply ◽  
Phase Inverter ◽  
Three Phase ◽  
Uninterruptible Power ◽  
Composite Energy ◽  
Three Phase Inverter

A composite energy storage system (CESS) that includes a photovoltaic (PV) power generation and an uninterruptible power supply (UPS) function is proposed. This system has three operating modes, namely, a grid-connected inverter mode, a grid-connected rectifier mode, and an islanding mode. This system is composed of a boost converter, a three-phase inverter/rectifier, a bidirectional DC/DC converter, and thyristor switches. The boost converter extracts maximum power from the PV panels and sends it to the DC-link. The bidirectional DC/DC converter is connected between the battery and the DC-link, which leads to an optimized charging/discharging operation. The three-phase inverter/rectifier transmits the power to and from the grid. Also, it operates as a UPS in the islanding mode. The thyristor switches are used for connecting/disconnecting between the grid and the AC load. A 15 kW prototype is implemented to verify the performance of the proposed system.

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