DISTRIBUTED POWER GENERATION SYSTEM THROUGH GROUPING THE SMART PV STREET LIGHTS AND METHOD FOR CONTROLLING THE SAME

摘要

PURPOSE: A distributed power system grouping a smart solar streetlight and a control method thereof are provided to selectively drive a system mode and an independent mode by changing a wiring configuration according to the accumulation of electricity. CONSTITUTION: N solar streetlight blocks(20,30,40) include solar cell modules(21,31,41), DC-DC converters(22,32,42), storage batteries(23,33,34), LED driving circuits(24,34,44), and LED streetlights(25,35,45). A bidirectional system inverter(50) controls the N solar streetlight blocks to be driven in a system mode and an independent mode by changing a wiring state according to the accumulation state of the N solar streetlight blocks.