Energetica India Magazine -October 2020

High-Power Modules Set New Benchmark for Large Scale Applications Trina Solar 600W/550W PV modules took advantage of it’s multi-busbars technology, low-voltage, high-current design, and advanced technology solutions such as non-destructive cutting and high-density cell inter- connect technology. These tech- nologies significantly improve the module’s performance in terms of anti-cracking and lower hot-spot tem - perature, further reducing the system cost. The optimized design of the Vertex module has become the new benchmark for high-power modules in large-scale power stations as well as distributed photovoltaic systems. The following is an analysis of the advantages and reliabilities of the Vertex series from five key perspec - tives: design, technology, testing, en- ergy yield, and packaging. 1. Low-Voltage Design Feature En- sures the Excellent Resistance to Hot Spots There are mainly two reasons that Trina Solar’s 600W/550W series mod- ules contribute to the outstanding re- sistance to hot-spot effect. Firstly, the 600W/550W series uses the most ad- vanced cells production line, which 28 energetica INDIA- October_2020 The optimized design of the Vertex module has become the new benchmark for high-power modules in large- scale power stations as well as distributed photovoltaic systems. Here’s an analysis of the Trina Solar’s Vertex series from design, technology, testing, energy yield, and packaging perspectives. holds the highest cells manufacturing standards in the industry. The leakage current Irev is minimized. Secondly, the Vertex 600W/550W series modules adopt a low voltage design. In 210 (55) module, 22 cells are connected to a by - pass diode, compared to the 530W 182 (72) modules, the reverse bias voltage of the shaded cell is reduced by more than 8%. Also, there are 20 cells con - nected to a bypass diode in 210(60) modules, which have the reverse bias voltage less than 23% of 590W 182(78) module. Figure 1 shows the laboratory hot-spot test results based on the IEC hot spot test standard. The average hot-spot Figure 1 Hot-Spot Temperature Comparison of Different monofacial Modules with backsheet in Lab under IEC Standard temperature of 210 55 pcs modules is 18℃ lower than 166 72pcs modules. An outdoor hot-spot test carried out in early September, each module has a single cell-shaded 30% and under short circuit condition, different hot spot temperature of 166, 182 and 210 modules are recorded. The test result shows that the hot spot temperature of 166 and 182 modules is relatively equal, and the average hot spot tem - perature of the 210 modules is 19℃ lower than 166 and 182 modules. The result further proved that the Ver - tex 600W/550W series modules have an excellent resistant ability to hot- spot effects on the market. PRODUCT FEATURE