# 有负载组件测试

## 带负载测量

$$R_{load} = \frac{V_{MP}}{I_{MP}}$$

### 所需材料

• 两台万用表 - 一台用于电压，一台用于电流
• 冷却电阻用的水
• 两个或更多个鳄鱼夹线
• 防护手套 – 组件和电阻器会变热
• 电阻器
• 太阳能组件

### 测试过程

• 将组件放置在阳光充足且无阴影的位置。最简单的方法是在正午附近将组件平放。
• 将一个仪表设置为电压刻度，另一个设置为电流刻度。
• 暂时不要添加电阻。按照上一页的说明测量 VOC 和 ISC
• 现在使用上面的原理图添加电阻器并记录每个电阻器的电压和电流。
• 更改电阻值以覆盖 IV 曲线。
• 使用所有电阻测量后，重新测量 VOC 和 ISC

测量 VOC 和 ISC 后，可以更换电阻器以收集结果。将电流读数表的黑色引线连接到电阻器的一端。使用黑色鳄鱼夹将一端连接到面板的正极端。此时会剩余一个夹子。这个夹子将用于连接到电阻器，从而完成电路。

### 结果与讨论

 Voltage (V) Current (A) Power (W) Resistance (Ω) 0.00 9.33 0.00 0.00 6.4 9.32 59.6 0.69 13.4 9.36 125.4 1.4 24.2 8.80 213.0 2.8 26.0 7.60 197.6 3.4 27.7 6.74 186.7 4.1 28.3 6.07 171.8 4.7 29.4 4.66 137.0 6.3 30.3 3.69 111.8 8.2 30.0 3.46 103.9 8.7 30.6 2.95 90.3 10.4 31.0 2.53 78.4 12.3 31.0 2.42 75.0 12.8 31.1 2.16 67.2 14.4 31.3 1.92 60.1 16.3 31.3 1.80 56.3 17.4 31.3 1.70 53.2 18.4 32.6 0.00 0.00 0.00

### 讨论

$$FF = \frac{P_{MAX}}{V_{OC} \times I_{SC}}$$

Parameter Specification Measured
PMAX (W) 295 213
VOC (V) 39.7  32.6
ISC (A) 9.61 9.33
FF 0.77 0.7

### 致谢

• Scott Currier (Fourth Grade Science Teacher, Highland Lakes School, Deer Valley Unified School District
• Lauren D'Amico (Science Teacher, Barcelona Middle School, Alhambra Elementary School District)
• Mark Calhoun (Physics Teacher, Camelback High School, Phoenix Union School District)
• Elliot Hall (Science Teacher, Barcelona Middle School, Alhambra School District)
• Alyssa Johnson (Akimel-A-al Middle School, Kyrene Elementary School District)
• Milt Johnson (Physics and Engineering Teacher, Bioscience High School, and Maricopa Community College Instructor)
• Leah Moran (Sonoran Trails Middle School, Cave Creek Unified School District)
• Meredith Morrissey (Science Teacher, Tempe High School, Tempe Unified School District)
• Myra Ramos (Math and Science Teacher, Alhambra Elementary School District)
• Tamara Waller (Fourth Grade Teacher, Alhambra Elementary School District)
• Allison Wolf (High School Science and Sustainability Teacher, Tempe High School, Tempe Unified School District)