為了滿足能源需求,最合適的方法之一是將可再生能源滲透到當前的電力系統(tǒng)中。通過集成可再生分布式發(fā)電機（DG）（例如太陽能系統(tǒng)）,風力渦輪機在當今非常出名。最近,太陽能因光伏組件成本的降低、技術(shù)的進步、及各國對該領(lǐng)域的支持而廣受贊譽。但將DG大規(guī)模集成到電力系統(tǒng)時,也存在一些缺點。其中一點是由于高滲透率導(dǎo)致的電力系統(tǒng)可靠性。電壓穩(wěn)定性是關(guān)鍵的問題之一。通過考慮不同國家預(yù)先定義的低壓穿越（LVRT）要求,本文主要對電網(wǎng)集成光伏系統(tǒng)中的短期電壓穩(wěn)定性進行了分析。在論文的第一部分中,本文中開發(fā)了一種適用于考慮故障穿越（FRT）控制技術(shù)的短期電壓穩(wěn)定性分析的光伏發(fā)電系統(tǒng)模型,并且設(shè)計了一種太陽能電池模型。其目的是保證光伏系統(tǒng)在電網(wǎng)側(cè)發(fā)生任何故障或電壓驟降期間穿越系統(tǒng)時都可以保持連接狀態(tài)。電壓穩(wěn)定性的分析主要是為了檢查故障期間負載注入下的系統(tǒng)性能。電壓穩(wěn)定性與負載動態(tài)的關(guān)系更大,因此在電壓穩(wěn)定性分析中應(yīng)考慮不同的負載特性。論文第二部分的主要內(nèi)容是研究光伏發(fā)電系統(tǒng)并網(wǎng)過程中的特性和沒有故障或電壓驟降時的系統(tǒng)性能。本文所開發(fā)的策略還將執(zhí)行最大功率點跟蹤（MPPT）功能,該功能在DC-DC轉(zhuǎn)換器中實現(xiàn)。當... 

【文章來源】：哈爾濱工業(yè)大學黑龍江省 211工程院校 985工程院校

【文章頁數(shù)】：81 頁

【學位級別】：碩士

【文章目錄】：
摘要
Abstract
Chapter1:Introduction
    1.1.Solar energy-An alternative energy Source
    1.2.Background and significance of topic
        1.2.1.Background
        1.2.2.Significance of topic
    1.3.Objective of thesis
    1.4.Literature review
    1.5.Outline of the thesis
Chapter2:Modeling of Photovoltaic array,characteristics analysis and overview to grid-tied PV systems
    2.1.Introduction
    2.2.Photovoltaic cell-A brief history
    2.3.Types of Photovoltaic cells
    2.4.PV Generator
    2.5.Modeling of PV array
        2.5.1.PV cell mathematical model(real/ practical cell scenario)
        2.5.2.MATLAB/Simulink model of Photovoltaic cell
        2.5.3.Analysis of characteristics of the photovoltaic array
    2.6.Maximum Power Tracking Control(MPPT)
        2.6.1.Perturb and Observe Methods
        2.6.2.Incremental Conductance
        2.6.3.Fuzzy Logic Control
    2.7.Overview to grid-tied PV system
        2.7.1.Photovoltaic energy generation network
        2.7.2.Grid-Connoted PV System and its components
        2.7.3.Three-phase voltage source inverter with filters
        2.7.4.Two-Stage inverter topology
    2.8.Structure and Topologies of grid-connected PV inverters
    2.9.Summary
Chapter3:Fundamentals of grid-connected PV control systems,grid integration challenges and factors effecting Voltage Stability
    3.1.Introduction
    3.2.Fundamentals Grid-connected PV system
    3.3.Standards for grid interfacing
        3.3.1.Grid codes
        3.3.2.Fault ride-though(FRT)technique
    3.4.Integration challenges
        3.4.1.Influence of PV services on generation sides
        3.4.2.Effect on transmission and sub-transmission networks
        3.4.3.Impact on distribution networks
    3.5.Types of PV systems
    3.6.Performance of grid-connected Photovoltaic systems
        3.6.1.Specifications for Grid-connected PV efficiency analysis
    3.7.Power system stability analysis with high PV penetration
        3.7.1.Categorization of stability of power systems
    3.8.Grid faults
        3.8.1.Simulink test system for fault analysis
        3.8.2.Simulation results
    3.9.Conclusion
Chapter4:Short-term Voltage stability analysis on grid-connected PV System
    4.1.Introduction
    4.2.Two-Stage grid-connected PV system model
    4.3.Voltage Stability an overview
        4.3.1.Long-term voltage stability
        4.3.2.Short-term(ST)voltage stability
    4.4.Dynamic behavior of PV System on Short-term voltage stability
        4.4.1.Load Modelling
        4.4.2.Induction motor(IM)
    4.5.Test System
    4.6.Dynamic voltage support for Low voltage ride-through(LVRT)
        4.6.1.Voltage Sag or Dip/Fault Detection Methods
        4.6.2.Simulink established fault detection model using equation(4.11)
        4.6.3.DC-Link voltage control
    4.7.Simulation Results for Short-term Voltage stability analysis
    4.8.Summary
    4.9.Conclusions and Future Work
References
攻讀碩士學位期間發(fā)表的論文及其它成果
Acknowledgement



本文編號：3486187