The capacitance capacitors and inductors of power grid form parallel resonance circuit .It's frequency may be related to the existing power grid close to the harmonic frequencies, If there is power grid harmonic current sources, harmonic resonance caused by enlarged so that the voltage and current waveform distortion even more serious.

電容器的電容和電網(wǎng)的電感形成并聯(lián)諧振回路成年人黄色网站视频在线观看，其頻率可能與電網(wǎng)中存在的諧波頻率接近台湾一级性爱视频，如果電網(wǎng)存在諧波電流源，諧振引起的諧波放大使電壓和電流波形畸變更為嚴(yán)重美女被插逼逼。

Based on this double-loop control scheme, very high quality steady-state grid current waveform and fast dynamic response can be obtained.

基于LCL濾波器的雙環(huán)控制方案賦予了系統(tǒng)較高的穩(wěn)態(tài)補償精度和快速的動態(tài)響應(yīng)色男人天堂网址。

This distinction was important because the flow of output-valve grid current in AB2 made the design of the previous stage much more difficult.

這一變化很重要欧美丰满大乳大屁股流白浆爽，因為在AB2里輸出電子管柵極電流的流動使到前級的設(shè)計更加困難。

The system adopts forecast of grid current and feed-forward of grid-voltage.

系統(tǒng)采用并網(wǎng)電流的預(yù)估和電網(wǎng)電壓前饋控制国产福利最新，防止了直流過壓先锋每日资源涩涩，實現(xiàn)了網(wǎng)側(cè)電流正弦化且為單位功率因數(shù)。

For the current situations that electrical power operation environment is more complex, the power organization reformconstantly, the electricity market is formed step by step, the current electrical equipment is outdate, and for the so many problems that lowenergy efficiency, poor power quality, less interaction between customers and power grid company, this paper defines the smart grid that is suited to China's power grid situation, and summarizes five features for the smart grid such as self-healing, interactive, optimization,compatibility, integration and the differences between smart grid and traditional grid, then introduces the four systems of smart grid and two foundations before building the smart grid, and finally concludes that smart grid is the inevitable result for the economical and technological development.

針對目前電力運行環(huán)境的日趨復(fù)雜欧美淫秽、電力體制改革的不斷前進久操视视频一区二区、電力市場的逐步行成、現(xiàn)有的電力設(shè)備亟待更新AV无码精品久久久久精品免费、能源利用率低亚洲A级黄片免费看、電能質(zhì)量差、用戶與電網(wǎng)公司交互作用少等諸多問題亚洲成年人在线免费，討論了適合中國電網(wǎng)情況的智能電網(wǎng)的定義操逼A片，總結(jié)出了智能電網(wǎng)自愈、互動亚洲皇冠成人无码影院在线观看、優(yōu)化igao国产、兼容、集成五大特點亚洲人成亚洲精品，概括出了智能電網(wǎng)和傳統(tǒng)電網(wǎng)的區(qū)別国产原创同事在线视频，并詳細介紹了構(gòu)成智能電網(wǎng)的四大體系和建立智能電網(wǎng)的兩大基礎(chǔ)，最后總結(jié)出智能電網(wǎng)是經(jīng)濟和技術(shù)發(fā)展的必然結(jié)果亚洲区人人操，我國應(yīng)加快智能電網(wǎng)的研究發(fā)展18下勿女人喷水高潮久久久。

This paper proposes a novel current control stratege to avoid this unstable. The grid current feedback is used controlled the power factor expediently, and a second differential link of grid current is designed to stabilize the system.

本文采用了一種新型的電流內(nèi)環(huán)控制策略，該策略采取了電網(wǎng)側(cè)電流反饋控制永久黄色网站免费观看av，能夠方便的控制功率因數(shù)国内一级婬片A片免费99ira，在電流內(nèi)環(huán)引入了電網(wǎng)電流二次微分來解決不穩(wěn)定的問題。

The series resonant type fault current limiter is a new technology to limit the excessive short-circuit current of the extra high voltage power grid.

采用串聯(lián)諧振型故障電流限制器(fault current limiter3p国产精品视频，F(xiàn)CL)是解決超高壓電網(wǎng)短路電流超標(biāo)問題的一種新技術(shù)手段被操的网站。

Customized shunts for high current applications (busbar, punch grid, battery clamp).

定制分流器用于高強電流狀況的的使用(如busbar， punch grid国产一级毛片视频国语在线， battery clamp)AAAWWW。

Through the analysis of the work principle of three phases voltage resource PWM converter, set up the low and high mathematic models, deduce the restriction equations about grid voltage, grid current, modulation voltage and the DC output voltage and the calculation equations of the AC-side inductance and the DC-side capacitance. There are two control strategies are adopted: Predicted current control strategy and voltage-current two closed-loop control strategy, and give a comparison by theory and practice.

通過分析三相電壓源型PWM變換器的工作原理，分別分析了低頻和高頻數(shù)學(xué)模型黄篇网站在线免费观看，并推導(dǎo)出了交流側(cè)電壓電流永久av免费网站、調(diào)制電壓、直流側(cè)電壓之間的數(shù)學(xué)約束關(guān)系以及交流側(cè)電感和直流支撐電容參數(shù)的選取依據(jù)公式视频亚洲自拍；分析對比了兩種控制策略：預(yù)測電流控制和電壓電流雙閉環(huán)控制并加以實驗驗證一级特黄牲交大片免费频；同時采用了負載電流前饋補償和本文提出的一種基于專家系統(tǒng)的神經(jīng)元新型智能PI控制器兩種方法大大提高了整個系統(tǒng)的動態(tài)響應(yīng)性能，并在仿真和實驗中加以驗證，這也是本文研究的重點內(nèi)容之一在线亚洲欧美网站首页。

A Geomagnetic storm is possible to induce geomagnetically induced current and many illeffects in high-voltage power grid. Detail studies about the distribution, amplitude and effects of GIC in power grid are very important.

__ |a 地磁暴在高壓電網(wǎng)中產(chǎn)生的地磁感應(yīng)電流(Geomagnectically-induced currentwww.啪啪免费，簡稱GIC)對電力系統(tǒng)運行可能造成一系列有害影響，深入地研究其在電網(wǎng)中的分布日韩精品少妇寂寞视频在线观看网站、大小及影響等問題有重要意義男女高潮无遮挡在线观看动漫。