In this paper, some problems that have to be faced with in the application of SPLL to static synchronous compensator are analyzed, and two improvements of SPLL are proposed. The first one is removing the filtering function of lead-leg element into the prepositive delayed signal cancellation element to remedy the difficulty in deciding its parameters; the second one is directly taking the post-PI regulation output of q-axis voltage as error signal of phase to call off the forward integrating element.

分析了軟鎖相環(huán)應(yīng)用于靜止同步補(bǔ)償器時(shí)面臨的若干問(wèn)題7777视频，并提出了2方面的改進(jìn)方案：一是針對(duì)超前/滯后環(huán)節(jié)參數(shù)選取困難的問(wèn)題亚洲国产看片基地久久1024，將其濾波功能轉(zhuǎn)移到前置延時(shí)信號(hào)消除環(huán)節(jié)中毛片网址播放；二是q軸電壓經(jīng)PI調(diào)節(jié)的輸出直接作為相位的誤差信號(hào)国产精品免费久久久久电影网，減少了前向積分環(huán)節(jié)。

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Power from the bus voltage terminal is transferred from the primary winding to the secondary winding of the transformer during a portion of an operational cycle of the forward converter circuit with the first and second switches being in a conductive state responsive to the first periodic gate control signal.

來(lái)自總線電壓端的電能在第一和第二開(kāi)關(guān)處于對(duì)第一周期性門(mén)控制信號(hào)起反應(yīng)的導(dǎo)電狀態(tài)的情況下在前置轉(zhuǎn)換電路的一部分操作時(shí)間間隔期間從變壓器的初級(jí)線圈輸送到變壓器的次級(jí)線圈精品国产免费污网站入口。

To remedy the deficiency of intelligent electronic devices in data communication, Guangdong Power Test and Research Institute developed the PT Handshaker communication manager for substations, thus allowing real time data communication between IED and RTU or dispatching gate way, i.

針對(duì)使用的智能化電子設(shè)備在數(shù)據(jù)通信方面存在的問(wèn)題，廣東省電力試驗(yàn)研究所自行開(kāi)發(fā)了PT Handshaker變電站通信管理器黄色免费一区二区三区，來(lái)實(shí)現(xiàn)IED與RTU或調(diào)度端前置機(jī)的實(shí)時(shí)數(shù)據(jù)通信国产精av，即實(shí)時(shí)的通信協(xié)議的轉(zhuǎn)換和數(shù)據(jù)處理。

A series of profile numerical simulation are based on the datas of core flooding experiment, including the homogeneous profile positive rhythm section, the rhythm section, interlining profile, interlayer heterogeneity section, intraformational heterogeneity of reservoir section, the actual reservoir simulation. The the section of displacement mechanism of core flow method and the datas of core flooding experiments take into account, the EOR scheme of later stage is CO2 preslug followed by the N2 slug flooding, at last is the waterflooding or depletion type of drive..

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Its leakage current is lower than 5nA at room temperature. The quantum efficiency in the wavelength range of 400-500nm is about 83%. The junction capacity is about 110-120pF. The noise level of PIN+PreAmp system is lower than 527e at -25C. The PIN diodes have passed the long-term stability test. All the main performances of our PIN diodes meet the requirement of ALICE/PHOS,and some of them are even better.

本工作研制的PIN硅光電二極管的靈敏區(qū)面積為16x17mm2，常溫漏電流小于5nA操视频网站在线免费观看，紫光區(qū)量子效率約為83%图片区日韩欧美亚洲，結(jié)電容為110-120pF，以及由PIN光電二極管與電荷靈敏前置放大器組成的讀出系統(tǒng)的噪聲水平在-25℃下小于527個(gè)等效噪聲電荷五月天97超碰精品在线，并經(jīng)過(guò)了長(zhǎng)期性能穩(wěn)定性的考驗(yàn)爱去操综合网。

A new desulfurization apprach for pulverized coal combustion is introduced in this paper; pulverized coal is first burn in a precombustion furnace under oxygen deficient condition (about 30% air needed in boiler is provided for precombustion), in precombustion moust of sulfur in coal is decomposed and oxidized, and evolved, the sulfur evolved is trapped in a desulfurizing fluidized bed by calsuim, and then the char and gas are introduced to the boiler furnace for complete combustion.

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First, this paper lists formula of active power by analyzing the composing of instantaneous power, then discusses the effect of prefilter to electric energy metering, how to measure electric energy in transient condition, and the influence of load type to the conversion of electric energy.

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The pick_up and analyse for parts data have been made and craftwork decision has been made. Profile calculations for turning parts and islands and islets for milling parts problem in mould cavity have been especially made. Post process for turning parts and milling parts have been realized. The cutter locus file has been made.

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