智能电力操作直流电源系统的研究
发布时间：2018-09-11 09:48
【摘要】：变电站电力系统的稳定保障需要依靠直流电源系统,因性能具有牢靠、寿命持久、高效率等优点,目前软开关技术的高频开关电源已经成为了现代电力操作电源系统中的一个关键组成部分。由于网络技术和计算机检测技术在融合变电站直流电源系统的过程中,有效地实现了实时远程监控直流电源系统,从而为变电站一次设备提供了安全、可靠的保障。 论文主要对基于IEC61850的智能变电站中一体化电力操作电源系统进行理论与实践上的研究,主要对变电站直流电源的工作原理、直流系统主要设计规则进行了剖析,并详细研究了其关键组件与相关前沿技术。 论文还重点研究了直流电源系统中的关键组成单元一充放电模块,并针对传统充放电单元的诸多弊端,采用新型全桥移相软开关技术的高频电子开关电源避开纹波、谐波等问题,并增强了电能转换效率。分布式电源作为电力电子技术的研究热点,主要取决于它良好的扩展性和动态性能。本文还对系统中的均流技术作了研究,对于常用的几种均流技术特点进行了对比分析。
[Abstract]:The stability of substation power system depends on DC power supply system, because of its strong performance, long service life, high efficiency and so on. At present, high frequency switching power supply based on soft switching technology has become a key part of modern power supply system. In the process of integrating DC power supply system of substation with network technology and computer detection technology, the real-time remote monitoring DC power supply system is effectively realized, which provides a safe and reliable guarantee for substation primary equipment. This paper mainly studies the theory and practice of integrated power supply system in intelligent substation based on IEC61850, mainly analyzes the working principle of DC power supply in substation and the main design rules of DC system. The key components and related frontier technologies are studied in detail. The paper also focuses on the research of charge / discharge module, which is the key component of DC power supply system, and aiming at many disadvantages of traditional charging and discharging unit, the high frequency electronic switch power supply based on new full bridge phase shift soft switch technology is adopted to avoid ripple. Harmonics and other problems, and enhance the efficiency of power conversion. As a research hotspot of power electronics, distributed power generation mainly depends on its good expansibility and dynamic performance. In this paper, the current sharing technology in the system is also studied, and the characteristics of several common current sharing technologies are compared and analyzed.
【学位授予单位】：华北电力大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TM63
本文编号：2236346
[Abstract]:The stability of substation power system depends on DC power supply system, because of its strong performance, long service life, high efficiency and so on. At present, high frequency switching power supply based on soft switching technology has become a key part of modern power supply system. In the process of integrating DC power supply system of substation with network technology and computer detection technology, the real-time remote monitoring DC power supply system is effectively realized, which provides a safe and reliable guarantee for substation primary equipment. This paper mainly studies the theory and practice of integrated power supply system in intelligent substation based on IEC61850, mainly analyzes the working principle of DC power supply in substation and the main design rules of DC system. The key components and related frontier technologies are studied in detail. The paper also focuses on the research of charge / discharge module, which is the key component of DC power supply system, and aiming at many disadvantages of traditional charging and discharging unit, the high frequency electronic switch power supply based on new full bridge phase shift soft switch technology is adopted to avoid ripple. Harmonics and other problems, and enhance the efficiency of power conversion. As a research hotspot of power electronics, distributed power generation mainly depends on its good expansibility and dynamic performance. In this paper, the current sharing technology in the system is also studied, and the characteristics of several common current sharing technologies are compared and analyzed.
【学位授予单位】：华北电力大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TM63
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