In the probabilistic model for wind farm, the uncertainties of wind speed is takes into account, and the real power injected and reactive power absorbed by the wind turbine are described as the function of the voltage magnitude, the slip of the induction machine and the circuit parameters of the wind turbines. In the unified iteration method, the slip of induction machine is introduced as the new correction value. The Newton-Raphson algorithm is used to solve the unified iteration of state variable and slip. Thus, the proposed method retains the quadratic convergence of the Newton-Raphson algorithm.

該風(fēng)電概率模型考慮風(fēng)速的隨機(jī)性午夜在线视频福利网站，將風(fēng)機(jī)輸出的隨機(jī)有功功率和吸收的隨機(jī)無功功率描述為電壓幅值啊啊轻点儿啊好爽好大啊啊?、異步機(jī)的滑差和風(fēng)輪機(jī)的電路參數(shù)的函數(shù)；聯(lián)合迭代方法中男人天堂网最新地址，異步風(fēng)力發(fā)電機(jī)的滑差作為新的修正量被引入，使用牛頓-拉夫遜方法求解關(guān)于潮流狀態(tài)變量和滑差的聯(lián)合迭代aⅴ色五月，加熱器因而迭代過程保持了牛頓-拉夫遜方法的平方收斂性迷j玩弄极品在线播放网站。

N this paper.a method for calculating the natural frequency and eigenmode of power turbine's tower.the wind effect and displacement response of the tower along wind direction. and the wind effect and displacement response produced by the tail vortex across wind direction is introduced. The response caused by wind turbine's rotation is discussed.

闡述了風(fēng)力機(jī)塔架的固有頻率和固有振型、順風(fēng)向下塔架的風(fēng)效應(yīng)和位移響應(yīng)欧美妇人成熟A片免费观看、橫風(fēng)向塔架在尾渦激勵(lì)下的風(fēng)效應(yīng)和位移響應(yīng)以及由風(fēng)輪旋轉(zhuǎn)而引起的位移響應(yīng)精品乱人伦视频。

No matter these parameter are wind- driven generation set is to be in meshy condition to still take off meshy condition to be monitored, use at judging status of the start condition of wind- driven generation set, job and breakdown situation, the power of have rendered great service that still is used at statistical wind-force generation set, without result power and total electricenergy production.

這一些系數(shù)不管力量發(fā)電機(jī)組是處在并網(wǎng)態(tài)勢(shì)還是脫網(wǎng)態(tài)勢(shì)都被檢測(cè)，用在判定力量發(fā)電機(jī)組的起動(dòng)因素欧美三级在线在线播放、工作態(tài)勢(shì)及毛病境況，還用在統(tǒng)算力量發(fā)電機(jī)組的有功碼率欧美一级日韩片、無功碼率和總發(fā)電量另类图片激情小说网。

When wind energy and solar energy are sufficient, wind turbine and photovoltaic arrays can satisfy load demand and at the same time they can feed electrolyzer; when wind energy and solar energy cannot satisfy load demand, the FC system will provide supernumerary electric energy, at the same time the deficient part of load power excessing the maximum power supply ability of FC system can be fed by UC bank in a short-term.

當(dāng)風(fēng)能與太陽能充足時(shí)，風(fēng)機(jī)與光伏陣列可滿足負(fù)荷的需要国产黄色视频影院你懂的，同時(shí)還可向電解池供電国产欧美另类在线专区；如果不能滿足負(fù)荷的需要?jiǎng)t由燃料電池提供額外的電能，同時(shí)由超級(jí)電容在短時(shí)期內(nèi)向負(fù)荷提供燃料電池最大功率以外的那部分電能Jizz中国女人。

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The results showed that soil wind erosion was the near-surface wind-sand activity. The sediment particle saltates mainly in 7.5-43.5 cm. Wind sediment amount decreased along height, which correlate well with power function, exponent function and logarithm function. The sediment particle composition was influenced strongly by wind erosion intensity and topsoil characteristics. However, the regularity of sediment composition was distinct in a definite paticle size in different heights. Wind erosion amount increases with wind speed exponentially, which was influenced by times that the wind does.

結(jié)果表明：陰山北麓農(nóng)牧交錯(cuò)帶土壤風(fēng)蝕是一種近地表的風(fēng)沙運(yùn)動(dòng)经典3p，風(fēng)蝕物躍移顆粒體主要集中在7.5～43.5 cm高度久久久久久久综合日本东京热，風(fēng)蝕物含量沿高度呈一遞減函數(shù)，對(duì)冪函數(shù)(无码视频)在线作爱、指數(shù)函數(shù)和對(duì)數(shù)函數(shù)均具有較好的相關(guān)性99久久人妻无码品系列；風(fēng)蝕物顆粒組成與風(fēng)蝕強(qiáng)度和地表狀況關(guān)系密切；風(fēng)蝕物顆粒組成以某一粒徑范圍色色色色色色色色色色色色网、某一高度為界隨高度的變化而表現(xiàn)出明顯的規(guī)律性免费无码又爽又刺激动态图；風(fēng)蝕量沿高度的變化與風(fēng)力作用時(shí)間有關(guān)，風(fēng)蝕量隨風(fēng)速的增大呈指數(shù)增加亚洲一级爱做视频。

To get the biggest power coefficient at various of wind speed, put out the argument of controlling wind turbine according to the wind pressure which act on the wind wheel swept area. Design and make a wind turbine which can adjust pitch angle of oar leaves through various of wind speed, and make experiment of characteristic.

1引盲 傳統(tǒng)的風(fēng)力機(jī)優(yōu)化設(shè)計(jì)方法是以槳葉各截面在設(shè)計(jì)風(fēng)速處具有最大的功率系數(shù)為目標(biāo)，設(shè)計(jì)是針對(duì)事先確定的一個(gè)設(shè)計(jì)風(fēng)速進(jìn)行的欧美图片性爱视频，風(fēng)力機(jī)只能在設(shè)計(jì)風(fēng)速點(diǎn)處獲得最大功率系數(shù)污视频欧美。

LabVIEW Simulation Software by 1.5MW wind turbines on the change in wind direction in the input signal, power and yaw motor motion simulation and analysis results show that the strategy will enable effective power output of wind turbines increases, making the cabin has the right wind fast, stable characteristics.

通過LabVIEW仿真軟件對(duì)1.5MW的風(fēng)力發(fā)電機(jī)在輸入變化的風(fēng)向信號(hào)時(shí)，功率和偏航電機(jī)動(dòng)作進(jìn)行仿真分析，結(jié)果表明該策略能夠使風(fēng)力機(jī)的輸出有效功率增加欧美一级黄片a片，使得機(jī)艙具有對(duì)風(fēng)快在线看网址，平穩(wěn)的特點(diǎn)

The complete wind turbine speed control firstly proposed here also improves the tracking effect of wind turbine rotating speed to variable wind speed. Wind turbine rotating speed synchronized power observer compensates the power ripple of wind turbine resulted in inverter dead time. A low pass filter used at the output of MPPT controller smoothes the speed reference, which makes the rotating speed of wind turbine more stable.

本文首次提出的變轉(zhuǎn)速擾動(dòng)的MPPT控制提高了風(fēng)車最大功率點(diǎn)追蹤的快速性和穩(wěn)定性，風(fēng)車完全轉(zhuǎn)速控制提高了風(fēng)車轉(zhuǎn)速對(duì)變動(dòng)風(fēng)速的跟蹤效果av无码动漫精品，轉(zhuǎn)速同步風(fēng)車功率觀測(cè)法消除了逆變器死區(qū)所造成的風(fēng)車功率波動(dòng)的影響免费精品无码人妻夜多侵犯AV，帶有低通濾波器的MPPT控制器使得風(fēng)車的轉(zhuǎn)速更加趨于平穩(wěn)国产在线观看入口。

Assumed that the coherence of the wind load in vertical is the same to the wind speed, the auto power spectrum and cross power spectrum of the wind load on the tower is formulated. Futhermore, the analysis shows that the contribution of the turbulence is about equal to the vortex shedding for the cross-wind motivation.

基于風(fēng)荷載豎向相干性與風(fēng)速相干性一致的假設(shè)亚洲一级黄色，得到輸電塔不同高度的風(fēng)荷載自譜與互譜，并分析輸電塔橫風(fēng)向激勵(lì)的組成一东京热AAAAA片AAA一，識(shí)別出紊流激勵(lì)部分與旋渦脫落激勵(lì)部分約各占一半亚洲久怡红院。