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Control Strategy to Suppress DC for Transformer-Less Grid-Connected PV Systems

Acknowledgement第5-6页
Abstract第6页
Chapter 1 Introduction第14-27页
    1.1 PV Power Systems第14页
    1.2 Classification of PV Power Systems第14-16页
        1.2.1 Stand-Alone PV System第15-16页
        1.2.2 Grid-Connected PV Systems第16页
    1.3 Modelling of PV Array第16-22页
        1.3.1 Photovoltaic Cell第16-18页
        1.3.2 PV Module第18-22页
    1.4 Maximum Power Utilization of PV Power Systems第22-25页
        1.4.1 Maximum Power Point Tracking (MPPT)第22-23页
        1.4.2 MPPT Algorithms第23页
        1.4.3 Perturb and Observe (P&O)第23-25页
    1.5 International Standards for Grid Connection第25页
    1.6 Challenges in Transformer-less Grid-connected PV Inverter第25-26页
    1.7 Thesis Outline第26-27页
Chapter 2 Literature Survey of DC Suppression Methods第27-36页
    2.1 Isolation Transformer第27-28页
    2.2 Grid-Connected Inverter Topologies第28-29页
        2.2.1 Half-Bridge Inverter Topology第28-29页
        2.2.2 Full-Bridge Inverter Topology第29页
        2.2.3 Single-Phase Three-Level Diode Clamped Inverter Topology第29页
    2.3 DC Blocking By Using Capacitor on the Inverter Output Side第29-30页
    2.4 DC current Sensing and Controlling Techniques第30-33页
    2.5 Virtual Capacitor Concept第33页
    2.6 Auto-Calibrating Techniques Using DC Link Sensor第33-34页
    2.7 DC Detection and Suppressing Method第34-35页
    2.8 Novel Control Method第35-36页
Chapter 3 DC Suppression Based on Proposed Control Scheme第36-41页
    3.1 Proposed Control Method第36-37页
        3.1.1 Full Schematic Diagram of Proposed Grid-connected PV Inverter System第36-37页
    3.2 Mathematical Formulation of DC Suppressing Problem第37-38页
    3.3 Controller Design for DC Suppression第38-41页
        3.3.1 Plant Modeling第38-39页
        3.3.2 Closed-Loop Transfer Function of Proposed Controller第39-40页
        3.3.3 Steady-State Analysis of Closed-loop System第40-41页
Chapter 4 Simulation Results and Discussions第41-50页
    4.1 Simulation Parameters第42页
    4.2 Tuning of PI Controller第42-43页
    4.3 Comparison with other Methods第43页
    4.4 Performance Evaluation第43-50页
        4.4.1 Estimation of DC component along with Harmonic Analysis第43-50页
Conclusion and Future Work第50-51页
Bibliaography第51-57页
攻读博士/硕士学位期间取得的研究成果第57-58页
附件第58页

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