提出了光伏水泵系统的使用条件,阐述了光伏水泵系统设计步骤,介绍了光伏水泵系统的核心控制技术成果及部分工程实践.

为了纠正补充教材和文献中有关立方晶格晶面间距的计算方法,对已有晶面间距的计算方法进行深入地总结与讨论,并给出一种利用密度比来计算晶面间距的方法,最后利用这些方法分别计算了面心立方晶格和体心立方晶格的晶面间距,不同方法的计算结果完全一致,从而验证了这些计算方法的正确性.

为了能够优化配置光伏提水工程中的光伏功率和水泵功率,分析了控制逆变器的转换效率、导线带来的损失、光伏阵列的实际最大输出功率等影响因素,推算出在云南省绝大部分地区光伏功率和水泵功率之比的优化取值范围应在1.3 ～1.6之间.对一个功率比为1.3左右的光伏提水工程的测量表明,在晴天中午时分,该工程的水泵工作在其额定功率的90％左右,验证了该优化取值范围是有效的.

提出了一种新的测量成品太阳电池基区少子寿命的方法,这种方法在电池制备完成后进行测量.此方法还可对印刷电极后烧结这步工艺流程进行少子寿命的监控,以提供改进电极制作工艺信息.

The calculation of the effective doping concentration profile in the semiconductor diffusion layer has a big error as the mobility μ with a constant. A dividing function was set up to simulate the experimental curve of the n type silicon mobility. The calculation using mobility profile carrier concentration profile can be well with the experiments.

A fabrication method for selective emitter solar cells was provided in this paper, and selective emitter solar cells were fabricated through this method with only one diffusion process. These solar cells were more potential than conventional BSF solar cells fabricated from the same silicon materials: their minority carrier lifetimes were much higher after oxidation, their average conversion efficiency was about 0.6 percentages higher, and their short wave spectral responses were better. All these proved that the method could be brought into industrial utilization.

A new technique measuring minority carrier lifetimes in fabricated solar cells base region byⅠ-Ⅴcharacteristics was proposed.Specially,it can be used to monitor the lifetimes after screen printing and metallization processing for pro- viding information to improve in metal contact grid manufacture.