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When a emergency occurs in the solar power generating, to confirm that there is a possibility of arcing. As long as there is solar radiation, solar power generation keeps supplying the electric power. Therefore if the arc occurs, there is a risk of fire. However, protection device for protecting a direct current system side was not present. We have developed a protective device for performing emergency...
This paper presents a hybrid MPPT composed of two methods: incremental conductance (INC) and Fuzzy Logic (FL) control. This method is able to track maximum power point (MPP) under variable solar irradiance. In addition to that, it generates a modulation signal to adjust the duty cycle of boost converter to ensure fast MPPT process. In order to validate both of the effectiveness and the usefulness...
At the present time, the concept of coordination of photovoltaic generation systems with existing power systems has become the focus of increasing attention. Taking coordination between photovoltaic generation systems and power storage equipment as its theme, this paper elucidates the outlook for control conditions and the recovery of costs with the focus on economic performance and also reports on...
A worldwide mobile network has consumed high volume of energy because of its high speed broadband growth (e.g., LTE, LTE-A, and 5G). Wireless telecommunication service providers have strived for reducing an operating expenditure (i.e., electricity cost) because an urban base station (BTS) consumes more power as these data uses of mobile subscribers increase. In order to reduce an operating cost of...
Utility-interactive photovoltaic power generations have been accepted and spread widely. Various innovative power conditioning systems have been also studied. In domestic utilization, the actual application of such solar panels is almost installed on top of the roof of the detached house. However, some residents living in the apartment house are having fairly strong desire to contribute for energy...
The present study discuss about restructuring in lighting systems in order to improve load leveling. The aim of this paper is to perform an economic assessment of utilizing DC lighting instead of AC lighting in presence of photovoltaic energy systems. For each scenario, the amount of luminous flux (lm) provided by the lighting fixtures is constant based on requirements for office spaces. The current...
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