太阳能发电 Solar power generation
光伏逆变器重点关注以下技术指标：
高效率：光伏逆变器的转换效率的高低直接影响到太阳能发电系统在寿命周期内发电量的多少。根据产品型号的不同，国际一流品牌的产品的转换效率最高可达98%以上。
长寿命：光伏发电系统设计使用寿命一般为20 年左右，所以要求光伏逆变器的设计寿命需要达到较高水平。
高可靠性：光伏逆变器发生故障将会导致光伏系统停机，直接带来发电量的损失，所以高可靠性是光伏逆变器的重要技术指标。宽直流电压工作范围：因为单块太阳电池组件的输出直流电压比较低，所以在实际应用中需要进行多块串联，得到一个较高的直流电压，再进行多组并联后输入光伏逆变器。由于不同功率、不同电压的光伏电池、不同的串并联方案组合，要求同一规格的光伏逆变器能够适应不同的直流电压输入。所以，光伏逆变器具有越宽的直流电压工作范围，就越能适应客户的实际应用需求。
The following technical specifications are key considerations for photovoltaic inverters: High efficiency: The conversion efficiency of a photovoltaic inverter directly affects the amount of electricity generated by a solar power system over its lifecycle. Depending on the model, products from leading international brands can achieve conversion efficiencies of up to 98% or higher. Long service life: As the design service life of a photovoltaic power system is generally around 20 years, photovoltaic inverters must be designed to meet high standards of durability. High reliability: A fault in a PV inverter will cause the PV system to shut down, resulting in a direct loss of power generation; therefore, high reliability is a crucial technical parameter for PV inverters. Wide DC voltage operating range: As the output DC voltage of a single solar cell module is relatively low, multiple modules must be connected in series in practical applications to achieve a higher DC voltage, which is then fed into the PV inverter after being connected in parallel. Given the variety of photovoltaic cells with different power ratings and voltages, as well as the different combinations of series and parallel configurations, PV inverters of the same specification must be capable of accommodating different DC input voltages. Consequently, the wider the DC operating voltage range of a PV inverter, the better it can meet the practical application requirements of customers.
