峰值30MW并网光伏电站发电单元设计  

Design of Power Generating Unit in 30MW Peak Value Grid-connected Photovoltaic Power Plant

作　　者：智腾飞[1] 王金梅[1] 台流臣[1] 朱菊[1] 肖龙[1] 

机构地区：[1]宁夏大学物理电气信息学院,宁夏银川750021

出　　处：《电气传动》2012年第11期23-25,共3页Electric Drive

基　　金：国家自然科学基金(51167015);宁夏回族自治区自然科学基金(NZ1152);科技部国际合作项目(2011DFA11780)

摘　　要：针对峰值30MW并网光伏电站的技术参数要求,提出发电单元设计方案,包括太阳能电池组件与逆变器选型等,并利用RETScreen软件对所选工程代表年的太阳辐射资料进行数据分析,做出曲线图,得到结论:当太阳能电池组件的倾角为36°时,全年日平均太阳总辐射量最大。设计了LCL滤波器的参数,通过Matlab/Simulink对滤波器输出电流进行仿真并检测谐波含量,电流波形改善明显,输出电流谐波含量符合并网发电系统入网电流的谐波技术指标要求。A power generating unit design including the choices of photovoltaic（PV） module and inverter based on the technical parameters of 30 MW peak value grid-connected PV power plant was proposed. Statis- tics analysis was conducted on solar radiation data of ehosing engineering area in the typical year with the assis- tance of RETScreen. Based on the above analysis, the curve chart was done, which can be concluded that the average daily solar radiation get most in a year when the tilt angle of PV modules is 36~. Designed the technical parameters of the LCL filter. The output current and its harmonics through LCL filter were simulated via Mat- lab/Simulink. The result indicates that current waveform has been significantly improved due to the above ex- periment. Moreover, the harmonics content fulfill the index requirements for current harmonic technique of grid-connected system.

关 键 词：光伏发电 逆变器 LCL滤波器 谐波分析 

分 类 号：TM464[电气工程—电器]