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mianxiang21
- 回顾一个多世纪以来电力工业和电力系统的发展，深感由于经济发展和技术进步带来的巨大变化。上世纪的80～90年代，是电力系统的初创时期。据记载，1882年在美国纽约建成了世界第一个完整的电力系统。这是一个由发电机、电缆和负载组成的直流电力系统。然而由于直流输电系统的局限性，人们转而研究交流输电技术，并在上一个世纪之交，确立了交流输电系统进一步发展和应用的基本取向，从而带来了本世纪交流高电压输电和电力系统的大发展。从本世纪初到60年代末，最高交流输电电压从12.44千伏和60千伏提高到735千伏和76
ThedesignandresearchofACandDCpermanentmagnetgenera
- 对于带有多套绕组的永磁电机，为了对电机的仿真更加精确，应用MATLAB/SimPowerSystems中的模块搭建电机的仿真模型，永磁体的影响用感应电动势表示。-AC and DC permanent magnet generator, Finite element method, Electromagnetic field, Mathematics model
deadtime
- ，通过对87C196MC单 片机及波形发生器(WFG)的深入研究分析，提出 了一种通过调整死区时间生成DC／DC变换器 PWM控制脉冲的新方法。该-Through 87C196MC SCM and Waveform Generator (WFG) in-depth analysis, a dead time generated by adjusting the DC/DC converter PWM control pulse of the new method. That
A-VSC-HVDC-Fuzzy-Controller-to-Damp-Oscillation-o
- The fast control capability of the VSC-HVDC and the process of area mode oscillations are analyzed. An auxiliary fuzzy logic controller designed in Matlab for the Voltage Source Converter based HVDC transmission system, VSC-HVDC, to improve t
How-to-use-Core-Generator-Software-System---(Ch-1
- Most electronic devices require AC power to work correctly because they are designed to be plugged into a standard wall outlet, which supplies AC power. These devices need a specific amount of low, regulated voltage in order to operate. AC power is e
WIND-RESEARCH
- On the Causes of Circulating Currents in PWM Drives With Open-End Winding AC Machines Phase-Shifting-Transformer-Fed Multimodular Matrix Converter Operated by a New Modulation Strategy An All-DC Offshore Wind Farm With Series-Connec
generator-from-motor
- A SCIENCE PROJECT TO DEVELOP A ELECTRIC GENERATOR FROM DC MOTOR. ITS AN SCIENCE PROJECT WHICH EXPLAINS BUILDING A GENERATOR
PWM
- 直流电源通过PWM发生器经由单相逆变器输出交流，示波器测量输出电压电流波形-DC power supply by single phase inverter AC output through the PWM generator, output voltage and current waveform by scope
power_1phPWM
- DC/DC and DC/AC PWM Converters This demonstration illustrates use of the Universal Bridge and Discrete PWM Pulse Generator blocks. It also demonstrates harmonic analysis of PWM waveforms using the Powergui/FFT tool.
720W-AC_DCDesign
- 白金级交流/直流参考设计采用通用输入电压产生12 VDC的稳压输出电压。参考设计的连续输出功率额定值为720W。 -Platinum AC/DC Reference Design using the universal input voltage generator 12 VDC regulated output voltage. The reference design of continuous output power rating of 720W.
ac-dc-acconverter
- wind tubine using synchronous generator ac dc ac converteron the platform pscad software-wind tubine using synchronous generator ac dc ac converteron the platform pscad software
10_JPE-10256
- highly efficient AC-DC converter for small wind power generation systems using a brushless DC generator (BLDCG) is presented in this paper. The market standard AC-DC converter for a BLDCG consists of a three-phase diode rectifier and a boost DC
Analysis-of-HVDC-converters
- 本文基于宁东直流输电工程的实际设备的数据,在PSCAD/EMTDC中建立了包含换流器、换流变压器、直流滤波器、交流滤波器和无功补偿设备、平波电抗器以及直流输电线路的模型,并按照CIGRE直流输电系统基准模型的典型控制方式,建立了初步的直流输电三级控制结构,并分析了控制逻辑中PI环节参数的选择问题：基于BPA仿真模型中的元件模型与参数,在PSCAD/EMTDC中建立了山东电网500kV动态等值之后的交流系统模型,包括发电机、励磁机、调速器、电力系统稳定器、变压器、负荷以及输电线路等设备的模型,利用
(57-4)317
- Abstract. The paper presents a squirrel-cage induction machine operating as a generator principally designed for use in small wind and hydroelectric power stations. The main advantages of such a generator are its high reliability, low price and cos
egprog
- EG8010 is a digital pure sine wave inverter ASIC (Application Specific Integrated Circuit) with complete function of built-in dead time control. It applies to DC-DC-AC two stage power converter system or DC-AC single stage low power frequency tra
129-Study-of-an-AC-side-wind-energy-system-conver
- This Paper consists on the study of one part of wind energy system conversion, its AC side. Renewable resources are in constant fluctuation. This situation could put in peril the energizing efficiency towards a given demand requirement. Therefor
DC-generator
- types of dc generators operating principle
05636925
- Control of a Doubly-fed Induction Generator with an Indirect Matrix Converter with Changing DC Voltage
APF thesis
- This thesis is a part of the research carried out on a double stage grid connected photovoltaic system, associated with a shunt active power filter. In the first stage, the photovoltaic generator is connected to a boost DC-DC converter, acting throug