지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 자료유형
- 학위논문
- 저자정보
- 지도교수
- 이성근
- 발행연도
- 2013
- 저작권
- 한국해양대학교 논문은 저작권에 의해 보호받습니다.
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초록· 키워드
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In the future, renewable energy will be large percentage in electric energy because of deepening of climate change and depletion of fossil fuel. Renewable energy is energy which comes from natural resources such as sunlight, wind, rain, tides, waves and geothermal heat, which are renewable.
There are 440V electric source and 220V in ship. A 440V source is used in driving power system such as crane and winch on deck, a 220V source is used in driving air compressor, pump and control devices in engine room.
Producing of electric energy using solar cell may be available in ship, but large size solar cell may be difficult to use.
In this paper, we make power converter system(PCS) that can meet the THD(Total harmonic distortion) condition(THD of voltage and current should be lower than 8% and 5%, respectively, and a single harmonic should be less than 3%) which is one of the grid-connected regulations for ship, and make power line modem(PLM) which PCS conditions can be monitored in realtime from remote distance.
PCS is made up of gate-level-shifter, single phase inverter(2 level or 3 level), LC-filter, zero crossing and phase detector, TMS320F2812 microprocessor(MCU).
Output AC square wave voltage of a inverter which is controlled by PWM pulse programmed by the MCU is converted with 220V and 60Hz sine wave voltage through L-C filter, and it is connected when inverter output and grid are in phase each other.
As a result, it shows that voltage and current THD of 2 level inverter is 2.7% and 1.9%, respectively, and voltage and current THD of 3 level inverter is 1.7% and 1.8%, respectively. it is confirmed that both of the inverter satisfy the condition, and also the states of system is monitored by using power line communication.
There are 440V electric source and 220V in ship. A 440V source is used in driving power system such as crane and winch on deck, a 220V source is used in driving air compressor, pump and control devices in engine room.
Producing of electric energy using solar cell may be available in ship, but large size solar cell may be difficult to use.
In this paper, we make power converter system(PCS) that can meet the THD(Total harmonic distortion) condition(THD of voltage and current should be lower than 8% and 5%, respectively, and a single harmonic should be less than 3%) which is one of the grid-connected regulations for ship, and make power line modem(PLM) which PCS conditions can be monitored in realtime from remote distance.
PCS is made up of gate-level-shifter, single phase inverter(2 level or 3 level), LC-filter, zero crossing and phase detector, TMS320F2812 microprocessor(MCU).
Output AC square wave voltage of a inverter which is controlled by PWM pulse programmed by the MCU is converted with 220V and 60Hz sine wave voltage through L-C filter, and it is connected when inverter output and grid are in phase each other.
As a result, it shows that voltage and current THD of 2 level inverter is 2.7% and 1.9%, respectively, and voltage and current THD of 3 level inverter is 1.7% and 1.8%, respectively. it is confirmed that both of the inverter satisfy the condition, and also the states of system is monitored by using power line communication.
목차
목 차Abstract iii1. 서 론 12. 계통연계형 단상 인버터 32.1 단상 2레벨 인버터 구성 32.1.1 전력변환시스템 개요 32.1.2 마이크로프로세서 및 PWM 생성 52.1.3 PWM 스위칭 패턴 102.1.4 게이트 회로 112.2 단상 3레벨 인버터 구성 142.2.1 마이크로프로세서 및 PWM 스위칭 패턴 142.2.2 게이트 회로 242.3 주변 인터페이스 및 소프트웨어 252.3.1 주변 인터페이스 252.3.2 소프트웨어 313. 전력선 통신 353.1 송?수신 회로 설계 353.1.1 라인커플러 353.1.2 수신회로 설계 363.1.3 송신회로의 설계 373.2 송?수신 소프트웨어 384. 실험 결과 및 고찰 394.1 실험 장치 394.2 실험 결과 425. 결 론 49참 고 문 헌 50
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