순시전압강하 보상 기능을 가지는 무정전전원공급장치의 개발

다국어 초록 (Multilingual Abstract)

In this paper, UPS, with a built-in instantaneous sag drop compensation features, was developed to improve performance. The improved UPS, using instantaneous moving average method, compensates by quickly measuring the voltage and series inverter of half-bridge type, using line-interactive method that links with the voltage of the battery and power source, was developed. In addition, by developing a parallel inverter that uses a high-efficiency PWM switching method, overall UPS system was enhanced. To verify the performance of the proposed algorithm, single-phase 5[kVA] UPS systems were designed and the experimental system was constructed. The low-cost type of Cortex-M3 module CPU STM32F103R8T6 (32[bit]) is attached and the switching time of mode transfer was set within 4 [ms]. THD of the linear load operates in less than 3[%], and the stability of the output voltage operates in approximately ±2[%] range. The superior performance of the operations was confirmed with the system set as above.

목차 (Table of Contents)

• Abstract
• 1. 서론
• 2. 전원품질 저하에 대한 보상장치
• 3. 제안된 UPS의 성능개선
• 4. 시스템의 구성과 및 실험결과
• 5. 결론
• References

참고문헌 (Reference)

1 손진근, "친환경 Ultra-capacitor에 의한 순시전압강하의 직렬전압보상 시스템" 대한전기학회 58 (58): 763-769, 2009

2 박종찬, "저 가격형 UPS를 구성하기 위한 단상 부스트 컨버터의 고 역률 제어" 대한전기학회 62 (62): 145-150, 2013

3 김동준, "Zigbee 무선통신을 이용한 UPS DC링크 커패시터의 고장 모니터링 시스템 개발" 대한전기학회 61 (61): 41-46, 2012

4 D. Mahinda Vilathgamuwa, "Voltage Sag Compensation With Energy Optimized Dynamic Voltage Restorer" 18 (18): 928-936, 2003

5 Math H. J. Pollen, "Understanding Power Quality Problems" IEEE Press 1999

6 R.M. Santos Filho, "Comparison of Three Single-Phase PLL Algorithms for UPS Applications" 55 (55): 2923-2932, 2008

7 R. Martinez, "A high-performance single-phase rectifier with input power factor correction" II (II): 311-317, 1996

8 F. Botterón, "A Three-Phase UPS That Complies With the Standard IEC 62040-3" 54 (54): 2120-2136, 2007