태양광 발전 시스템의 환경조건에 강인한 MPPT 제어 = Robust MPPT Control in Environmental conditions of the Photovoltaic System

다국어 초록 (Multilingual Abstract)

Recently, interest in the new renewable energy is increasing due to rising of fuels price and environment pollution. PV(Photovoltaic) has advantages that is limitless and eco-friendly energy, generated in demanded area and long life and easy maintenance.
The characteristics of and of solar cell nonlinearly
changes according to irradiation, temperature and load variation.
therefore, to use efficient PV system, operating condition must be always operating at maximum power point. Also, PV system use semiconductor devices, so some loss is generated by temperature. But conventional MPPT methods are not considered temperature, so it has
a problem of decrease efficiency.
Performances of conventional the PO and the IC method are depend on the step size. So it has weakness which the method is must select optimal step size. Also, MPPT control applying PI and fuzzy control is not fulfill expected performance, because of PI controller has fixed
gain and fuzzy control has cumulative error by integration. Therefore,
this paper proposes the ECR-IC MPPT control(Robust MPPT control in Environmental Conditions) that is automatically adjusted the step size
according to the varying environmental conditions.
Proposed the ECR-IC MPPT method in this paper is analyzed control characteristic about condition of radiation, temperature and partial shadow and compared with conventional MPPT methods. The validity
of this paper is proved by this results.

목차 (Table of Contents)

• 제 1 장 서 론 …………………………………………………………… 1
• 1.1 연구배경 ……………………………………………………………… 1
• 1.2 연구의 필요성 ……………………………………………………… 4
• 1.3 연구의 동향 ………………………………………………………… 8
• 1.4 연구의 목적 ………………………………………………………… 10
• 제 2 장 PV 시스템 모델링 ………………………………………… 12 2.1 태양전지의 특성 …………………………………………………… 12
• 2.2 태양전지의 모델링 ………………………………………………… 23
• 제 3 장 태양광 발전의 MPPT 제어 ……………………………… 28 3.1 종래의 MPPT 제어 방법 ………………………………………… 29
• 3.2 ECR-IC MPPT 제어 방법 ……………………………………… 38
• 제 4 장 성능 시험 결과 ……………………………………………… 44
• 제 5 장 결 론 ………………………………………………………… 65 참고문헌 ………………………………………………………………… 67
• 요지 ……………………………………………………………………… 72