电子世界
電子世界
전자세계
ELECTRONICS WORLD
2013年
2期
45-46
,共2页
光伏阵列%改进的扰动观察法%最大功率点追踪%并网逆变器%MATLAB仿真
光伏陣列%改進的擾動觀察法%最大功率點追蹤%併網逆變器%MATLAB倣真
광복진렬%개진적우동관찰법%최대공솔점추종%병망역변기%MATLAB방진
photovoltaic array%adaptive variable step duty cycle perturbation and observation%maximum power point tracking%grid connected inverter%MATLAB simulation
阐述了两级式光伏并网发电控制系统的结构及其控制过程,建立了光伏阵列模型和光伏并网发电系统模型,利用光伏阵列模型模拟了光照条件变化时光伏并网系统的输出情况进行仿真分析.实验表明,此两级式光伏并网发电系统能迅速有效地跟踪到光伏阵列的最大功率点,而且能够控制并网电流的波形,使逆变器的输出电流与电网电压同频同相,保证电流输出波形为正弦波.
闡述瞭兩級式光伏併網髮電控製繫統的結構及其控製過程,建立瞭光伏陣列模型和光伏併網髮電繫統模型,利用光伏陣列模型模擬瞭光照條件變化時光伏併網繫統的輸齣情況進行倣真分析.實驗錶明,此兩級式光伏併網髮電繫統能迅速有效地跟蹤到光伏陣列的最大功率點,而且能夠控製併網電流的波形,使逆變器的輸齣電流與電網電壓同頻同相,保證電流輸齣波形為正絃波.
천술료량급식광복병망발전공제계통적결구급기공제과정,건립료광복진렬모형화광복병망발전계통모형,이용광복진렬모형모의료광조조건변화시광복병망계통적수출정황진행방진분석.실험표명,차량급식광복병망발전계통능신속유효지근종도광복진렬적최대공솔점,이차능구공제병망전류적파형,사역변기적수출전류여전망전압동빈동상,보증전류수출파형위정현파.
This paper introduces the structure and control of two-Stage grid-connected photovoltaic control system establishes photovoltaic array model and grid-connected photovoltaic model and simulates the output of grid-connected photovoltaic system with the change of il umination by photovoltaic array model.The results show that this two-level grid-connected photovoltaic system quickly and effectively tracks the maximum power point in photovoltaic array,accurately tracks the voltage phase as for grid-connected current control,assures the output current of inverter and the grid voltage of the same frequency and phase and guarantees the sinusoidal waveform with few ripples of current output.
