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Efficient Modular Grid Connected Solar Inverter In (N+1) Configuration

机译：高效的模块化网格连接太阳能逆变器（n + 1）配置

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摘要

Renewable energy sources have gained momentum in the current trends of effective power generation to overcome global warming due to the pollution caused by existing power generating system. The renewable power will also meet the future demand when existing fuel will be exhausted. Solar power is considerably preferred on account of its easy availability all year round. In this paper, a very efficient way of generating grid quality power from solar power has been presented. For achieving high efficiency, solar DC power is directly converted through high frequency PWM switching based inverter to grid power eliminating any buck-boost power converter stage. MPPT controlled has been implemented in the inverter itself in the process DC to AC conversion. The basic inverter unit is designed at 3KW level to optimize efficiency. The inverter is based on transformer less design along with other high MTBF components resulting reliability, longevity and efficiency to a peak value. Output power boosting is achieved by adding number of 3KW inverters in parallel at the AC output side in an N+l configuration. This configuration further improves the overall performance compared to a single high power inverter as far as MTBT, shading and power enhancing point of view is considered.
机译：可再生能源在现有的有效发电趋势中获得了势头，以克服全球变暖由于现有发电系统造成的污染。当现有燃料将耗尽时，可再生能力也会满足未来的需求。由于整年易于可用性，太阳能电力很优选。在本文中，已经介绍了从太阳能发电产生电网质量功率的非常有效的方式。为了实现高效率，通过基于高频PWM切换的逆变器直接转换太阳能直流电源，以消除任何降压 - 升压功率转换器级。 MPPT控制已在过程DC中的变频器本身中实现，以AC转换。基本逆变器单元采用3KW水平设计以优化效率。逆变器基于变压器的设计较少，以及其他高MTBF组件，导致峰值的可靠性，寿命和效率。通过在N + L配置中在交流输出侧并行地在AC输出侧添加3kW逆变器的数量来实现输出功率升压。与单个高功率逆变器相比，该配置进一步提高了整体性能，只要MTBT，考虑着色和功率增强的视图。

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