Earticle

초록

영어

In this thesis, a boost chopper using PV (Photovoltaics) system and PWM (Pulse Width Modulation) voltage type power converter were constructed to provide a pleasant environment to the patients in the hospital wards by controlling temperature, humidity and air-conditioning & heating. For the stable modulation of solar cell, synchronizing signal and control signal were processed using one chip microprocessor. Power converter system was constructed with booster chopper and voltage source inverter and test was carried out for both devices. Constant voltage control method was used to track a maximum power point at boost converter control. For the inverter control, synchronizing signal and control signal were processed by microprocessor for the stable modulation according to the switching theory of SPWM (Sinusoidal Pulse Width Modulation) and directions to each sector. Test was carried out for inverter control using SPWM control method. In addition, grid voltage was detected and this grid voltage and inverter output were operated at the same phase for the phase locking with PWM voltage source inverter so that surplus power could be linked to grid. This characteristic was applied on the temperature and humidity sensors in the general buildings and buildings having specific purposes such as hospitals. The good dynamic characteristic of inverter could be obtained by these applications. Also, PWM voltage inverter maintains a high power factor and low-frequency harmonic output so that power can be supplied in the load as well as system.

목차

Abstract
 1. Introduction
 2. Electrical Characteristics of Solar Module
 3. MPPT (Maximum Power Point Tracking) Control
 4. Electrical Characteristics of Slope and Distance
  4.1. Affections of Slope and Distance
  4.2. Output Current Characteristics Depends on Incidence Angle
 5. Characteristics of Temperature and Irradiance
  5.1. Characteristics of Irradiation
  5.2. Temperature Characteristics
 6. PWM Power Converter Circuit
 7. Conclusion
 Acknowledgements
 References

키워드

저자

• Moon-Taek Cho [ Dept. of Electrical & Electronic Engineering, Daewon University College, 316 Daehak Road, Jecheon, Chungbuk, 27135, Korea ]
• Young-Choon Kim [ Dept. of Mechanical & Automotive Engineering, Kongju National University, 275 Budae-dong, Seobuk-gu, Cheonam-si, Chungnam, 31080, Korea ]
• Chung-Sik Lee [ Dept. of Electrical & Electronic Engineering, Daewon University College, 316 Daehak Road, Jecheon, Chungbuk, 27135, Korea ]
• Ok-Hwan Kim [ Dept. of Mechanical & Automotive Engineering, Kongju National University, 275 Budae-dong, Seobuk-gu, Cheonam-si, Chungnam, 31080, Korea ]

참고문헌

발행기관

간행물

표지보기 관심저널 등록

• 간행물명

  International Journal of Control and Automation

• 간기

  월간

• pISSN

  2005-4297

• 수록기간

  2008~2016

• 십진분류

  KDC 505 DDC 605