This paper now a new concept of module integrated converters called PV balancers for photovoltaic applications. The planned concept enables independent maximum power point tracking (MPPT) for each module, and effectively decreases the want for power converters. The power rating of a PV balancer is less than 20% of its counterparts, and the manufacturing cost is thus naturally reduced.
In this paper, two architectures of PV balancers are proposed, analyzed, realized, and verified through simulation and experimental results. It is anticipated that the planned approach will be a low-cost solution for future photovoltaic power systems.
(a) Architecture I of PV balancers
(b) Architecture II of PV balancers
Figure 1. Two possible architectures of PV balancers
EXPECTED SIMULATION RESULTS:
Figure 2. Output voltages of PV balancers in Architecture I
Figure 3. Output voltages of PV balancers in Architecture II
A new concept of module-integrated converters called PV balancers has been planned and verified in this paper. The planned concept enables independent maximum power point tracking (MPPT) for each module, and effectively decreases the want for power converters.
PV balancers may have a significant economic value for photovoltaic systems in the future. Future work will be focused on power converter optimization, dc bus voltage control, and developing a highly efficient inverter for PV balancers.
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