원격 다중 제어가 가능한 독립형 태양광 발전 시스템 제어기 개발에 관한 연구

Abstract

Interests about clean energy is increasing steadily, especially solar power system. Generally solar power system is divided grid-connected power system with stand-alone power system.

This paper describes microprocessor-based control of photo -voltaic power conditioning system and remote multiplex control construction method in stand-alone power system.

We have designed a MPPT(Maximum Power Point Tracker) algorithm with environment factors and a PWM(Pulse Width Modulation) algorithm for high efficiency with microprocessor.

The controller has been tested in the laboratory and shown excellent performance.

Thus, recently demands regarding the monitoring system construction in stand-alone power system, proposing the construction method of remote multiplex control which used the modem of low price. It would be able to accomplish as repeater for each unit.

Two algorithms in this paper were programed by CCS-C and C++ for multi-control monitoring system. The algorithm of choosing unit was used 'select and poll method' and the course assignment algorithm was embodied with 'Bellman-Ford algorithm'. In this paper, those algorithm used for the actual test and the good results is achieved without communication-data broken.

This proposed controlle with remote multiplex control algorithm will be applied such as monitoring system of PV light on the wayside, monitoring system of unmanned lighthouse and monitoring system of refrigeration container on vessel and so on, it can be applied in the field which is various.