Development and performance test of smart power conditioner for value-added PV application

Abstract It is a disadvantage that PV power generation is only useful for clear daytime. However, a new 24 hours of application in an extended area can be added by active utilization of potential ability of PV power conditioner. For this purpose, a new multi-functional power conditioner was developed, which has a smoothing function to reduce PV output variation and load fluctuation, and also has additional function to compensate harmonics current and reactive power caused by customer's load. As a result of indoor testing, a reduction rate of around 1 20 for harmonics current and reactive power were achieved. In addition, the reduction rate around 1 10 for smoothing of PV output variation and load fluctuation were verified. The work was promoted by NEDO as part of the New Sunshine Project in Japan.