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This paper presents a comparative study between different types of stage connections of DC-DC converters used in street lighting systems based on LEDs. One of the connections is based on the technique known as Reduced Redundant Power Processing (R2P2) and the other is the traditional series connection. The SEPIC and Buck-Boost converters were implemented in the power factor correction and control...
This paper presents a modular topology for the design of a luminaire for street lighting based on LEDs. Each module consists of a driver which is composed by two integrated DC-DC converters. The first one is a sepic converter which is responsible for correcting the power factor, and the second is a buck converter which is responsible for the power control delivered to the load. Both converters are...
This paper present the developments of a low-cost Phasor Measurement Unit (PMU) for smart grid monitoring. This PMU is being developed for large-scale use in the distribution system allowing to monitor local and transmission level events. The device provides magnitude, angle and frequency data of the AC voltage in a synchronized way, between any point in the electrical system, even geographically...
This work proposes the use of a modular topology for the design of a luminaire for street lighting based on LEDs. Such modular topology consists of multiple drivers, which make use of DC-DC converters for both power factor correction and power control stages. In the proposed topology each driver has its independent set of power LEDs, which makes the lamp more robust to the failure of one or more individual...
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