人类对电的认识和应用以及电力科学的发展首 先是从直流电开始的。1882年,法国物理学家 M·得 彼列茨进行了历史上第一次直流输电试验,将 1.5kW 、1.5~2kV的直流电通过电报线路驱动 57km 外的水泵旋转 ,这次试验虽然线路功耗高达 78%,几乎没有使用价值,但它标志着高电压、 远距离大容量输电的崭新开始。这次试验由于具备 发电、输电和用电设备,所以也被认为是世界上第 一个电力系统。1954 年,第一座高压直流(HVDC) 输电工程投入工业化运行,它是从瑞典本土至果特 兰(Gotland)岛之间的一条 20MW、100kV 海底电 缆直流输电线,线路全长 96km。1972 年,加拿大伊 尔河(Eel River)HVDC输电工程正式投入使用,这 座 20MW 、2×80kV背靠背式 HVDC输电工程以首 次全部采用晶闸管阀而著称于世。到目前为止,全 世界共有 70 多个 ...

This paper proposed to utilize the DC source from the solar PV. The DC/DC converter is the unidirectional power flow between the solar PV and load, while in existing its bidirectional. The proposed converter becomes compact using wide band gap devices which provide high efficiency and reduces heat generation of the circuit. PSO is used for the switching control for the converter. The converter ...

Performance Evaluation Of Fuzzy Logic Controlled Bidirectional DC to DC Convertor Written by Administrator Wednesday, 16 March 2011 08:49 Last Updated Monday, 21 March 2011 07:38 This paper presents the systematic design procedure of fuzzy logic controller for the coupled inductor bidirectional DC-DC converter. The converter contains nonlinear elements making the mathematical model more complex...

Performance Evaluation Of Fuzzy Logic Controlled Bidirectional DC to DC Convertor Written by Administrator Wednesday, 16 March 2011 08:49 Last Updated Monday, 21 March 2011 07:38 This paper presents the systematic design procedure of fuzzy logic controller for the coupled inductor bidirectional DC-DC converter. The converter contains nonlinear elements making the mathematical model more complex...

Performance Evaluation Of Fuzzy Logic Controlled Bidirectional DC to DC Convertor Written by Administrator Wednesday, 16 March 2011 08:49 Last Updated Monday, 21 March 2011 07:38 This paper presents the systematic design procedure of fuzzy logic controller for the coupled inductor bidirectional DC-DC converter. The converter contains nonlinear elements making the mathematical model more complex...

Wind energy has huge potential to become major source of renewable energy for the modern world. For integrating wind farms to the AC grid, HVDC transmission systems have several advantages over AC transmission systems. This paper presents the design and control of voltage source converter based HVDC system for integration of wind farms in to AC grid. The designed VSC-HVDC system performance und...

Abstract—This paper presents an overall study of Feedback Control of Z-Source Converter Fed Separately excited DC motor with centrifugal Pump Set. Z-source converter can be used for both voltage buck and boost mode using LC impedance network. In this paper the dynamic modeling of Z-source with motor load and centrifugal pump set is carried out with new findings. The compensators for speed feedb...

Photovoltaic (PV) cell converts sunrays into electrical energy, which has non-linear I-V characteristics. For extracting maximum power from photovoltaic (PV) array for varying environmental conditions, it is necessary to use MPPT tracker. The MPPT consists of DC-DC converter and MPPT algorithm, DC-DC converter is inserted between solar panel and load or battery. The task of MPPT tracker is to m...

In a wind power generator using doubly fed induction generator (DFIG), the three-phase pulse width modulation (PWM) voltage source converter (VSC) is used as grid side converter (GSC) and rotor side converter (RSC). The standard linear control laws proposed for GSC provides not only instablity against comparatively large-signal disturbances, but also the problem of stability due to uncertainty ...