Controller for grid-connected generating wind solar complementary street lamp system

Abstract

The invention provides a controller for a grid-connected generating wind solar complementary street lamp system, which can combine a wind solar complementary generating system and a mains supply power grid. First, the wind solar complementary generating system supplies power to a street lamp and feeds redundant electrical energy to the mains supply power grid. When wind solar electric energy production can not meet requirements of normal work of the street lamp, the mains supply power grid supplies power to the street lamp so that mains supply is saved, and normal work of the street lamp is guaranteed. A special storage battery is not required to be configured in the wind solar complementary generating system, and cost is reduced. The controller comprises a main control chip, a wind energy direct current (DC) / DC converter connected with a wind driven generator connected with the main control chip in bi-directional mode, a luminous energy DC / DC converter connected with a photovoltaic assembly, a load DC / DC converter connected with the street lamp and a reversible alternating current (AC) / DC converter connected with the mains supply power grid. The street lamp is respectively connected with the luminous energy DC / DC converter, the wind energy DC / DC converter and the reversible AC / DC converter respectively through the load DC / DC converter.

Description

technical field [0001] The invention relates to the technical field of a wind-solar hybrid street lamp system controller, in particular to a grid-connected wind-solar hybrid street lamp system controller for power generation. Background technique [0002] At present, most of the public lighting and street lighting systems in my country's existing cities or rural areas are powered by the mains power grid, which consumes a lot of power. In today's world where energy is in short supply, look for new energy sources to solve the problem of large power consumption in public lighting systems , is also a very important work. As an ideal clean new energy power supply technology, wind-solar hybrid power generation technology has become an important development direction of the new energy industry. The wind-solar hybrid power generation system based on wind-solar hybrid power generation technology is mainly composed of wind turbines, photovoltaic modules, controllers, batteries Its wor...

AI Technical Summary

Problems solved by technology

However, in the wind-solar hybrid power generation system of the prior art, it is generally equipped with a special battery as an energy storage element to store the excess electric energy generated by the wind generator and the photovoltaic module, which increases the complexity of the installation process of the wind-solar hybrid power generation system, and due to the dedicated The price of the storage battery is generally relatively expensive, which makes the cost of the existing wind-solar hybrid power generation system relatively high

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