查询词典 close-up view

ABSTRACT Aiming at problems of trans-vector controller in a vehicle-carried induction motor such as variable rotor and stator resistance following motor temperature, and their inductance varying with flux saturation degrees. Firstly, CSI and VSI are introduced, for CSI, it can hold the advantages both FOC and DTC using stator flux directional, PI parameter and simulation are also introduced. Secondly, equations of IM in the synchronous rotary frame and its static counterpart, as figuring in the saturation condition of magnetic field, are dealt in this paper and the simulation results are presented. Thereafter, the parameter designing of PI trans-vector controller is processed, which features the non-linear model. In practical realization, as neglecting the dynamical change of motor inductance, this paper employs online modification of inductance parameters, according to the flux saturation, then transforms the non-linear equations into linear ones, and so compacts the structure of controller. Thirdly, in view of the maximum torque output is extraordinary requisite when Electrical Vehicle start up, accelerate, and overtake, this paper issues the maximum torque when both inverter and battery capacity is corporeally definite. Fourthly, on-line differentiating and analyzing both rotor's time constants and its flux by using the expanding order reduction and discrete Kalman filter equation are fathomed, in order to realize high-performance trans-vector algorithm, and also the simulation results are presented. Fifthly, the close-loop regenerative brake system, when the EV's torque is set constant, is deduced; at the same time, unification of electric drive model and brake model is executed. Combined with maximum charge current demands, the mathematical model for online yielding torque as a demand.

本论文针对车载异步电机在矢量控制器所遇到的问题：定转子电阻随温度变化及随电机饱和程度变化的转子电感及定子电感而影响电机调速性能提出一套完整的解决方案：分析了电流型逆变器和电压型逆变器在实现矢量控制时控制器参数的计算，分析出对于电流型逆变器在采用定子磁场定向时，其性能同时具有矢量控制和直接转矩控制两者的优势，并对电压型逆变器在转子磁场定向下的模型进行了仿真研究；建立异步电机非线性模型，推导出考虑磁饱和时异步电机在同步旋转坐标系及静止坐标系下的方程，并做出了仿真结果，建立异步电机在非线性模型下的矢量控制调节器的PI参数设计，在实际应用中，若忽略电机电感的动态变化，可以根据当前的磁路饱和状态而在线修正电感参数，从而将非线性方程线性化，降低控制器的复杂度；考虑到电动汽车在起动和加速超车时需要电机有最大转矩输出，本文讨论在逆变器容量一定和电池供电能力有限的情况下电机最大转矩输出问题；推导了异步电机扩展降阶、离散卡尔曼滤波方程在线辨识转子时间常数和转子磁通，用于实现高性能的矢量控制算法，并给出了仿真结果；推导出了电动汽车恒转矩给定的闭环回馈制动系统，实现了电动控制模型和制动模型的统一，而且结合铅酸电池最大充电电流的要求，为制动转矩在线给定建立了数学模型；设计了基于双DSP系统的高性能矢量控制器软硬件框图，并以大量实验数据说明矢量控制在电动汽车应用的实际应用状况。

I used a photographer's lupe (magnifying device used to view slides) to see what was going on close up.

我用了一个摄影师的放大镜（放大设备用于查看幻灯片），看看有什么是在结束了此案。

Night time falls on day 2 and people get a close up view of La Princesse.

夜间落在第2天和人民得到近摄鉴于香格里拉公主。

A close up view of La Princesse reveals the operators and the mechanics involved with the spider.

阿近摄鉴于香格里拉公主揭示了运营商和力学参与蜘蛛。

Can roll out, two products, think everybody knows, there is a kind of view in industry before, that is, the content that Baidu searchs is far be inferior to GG, the content of Baidu is too much rubbish content, actually really such also, the friend of a few major, use GG mostly, but Baidu is not willing however, tell the truth after all what the technology of Baidu does not have GG is good, but Baidu also is not fool, he also is in at the same time progress, the search that Baidu also can try hard to raise his after contains Troy; to have authoritative statistic GG is in today home with occupational the market of 30%, can think Baidu this country's biggest player, not can urgent, so he rolled out plan of what phoenix mew this year, this moment, very big friend of one part stationmaster has urgent, because still checking, adjust, think everybody saw the near future, a lot of websites, unhappy according to, home page falls authority, very big one part reason is this plan, baidu can raise what he searchs to contain Troy, at the same time this is meant, very big one part, rely on to collect, pilfer catenary, wait for a few heterodoxy, a few opportunistic sites will lose vivosphere, but at the same time also a few normal sites also got embroil, but do not be afraid of, believe the actual strength of Baidu, believe oneself, to finally, those who rank front row is normal site absolutely, and the site with the long time that build a station, the site with close user, content is the site that achieves formerly more, making a station have a few experience, that is: The network achieves myth, roam holds the post of our bank, sum up two words to hold to

会推出，两个产品，想想大家都知道吧，以前在业界有一种说法，那就是，百度搜索的内容远不如GG，百度的内容太多垃圾内容，其实也确实如此，一些专业的朋友，大多都用GG吧，但是百度却不愿意，说实话毕竟百度的技术没有GG的好，但是百度也不是傻子，他也同时在进步，以后百度也会努力提高自己的搜索含金量；具权威统计今天GG在国内以占领了百分之三十的市场，可想百度这个国内最大的玩家，能不急吗，所以他在今年就推出了什么凤巢计划，这个时候，很大一部分站长朋友有急了，因为还在测试，调整，想大家都看到了近期，很多网站，都不快照，首页降权，很大一部分原因都是这个计划吧，百度会提高自己搜索的含金量，同时这就意味着，很大一部分，靠采集，盗链，等一些旁门左道，的一些投机取巧的站点将失去生存空间，但是同时也有一些正规站点也受到了牵连，但是不要怕，相信百度的实力，相信自己，到最后，排名前列的绝对是正规的站点，而且建站时间长的站点，用户亲密的站点，内容多为原创的站点，在作站有几句体会，那就是：网络创神话，遨游任我行，总结两个字坚持

Not only it impairs patients" genital health and Quality of life, but also is associated with an increased risk of type 2 diabetes, endometrial carcinoma, hyperlipemia, hyperpiesia, cardiovascular and cerebrovascular events. Up to now, precise pathogenesy of PCOS is yet unknown. The modern medicine indicates the etiopathogenisis of PCOS related to hereditism, endocrinology, immunology, metabolism and so on. The main features are hyperandrogenism and hyperinsulinemia, the correlation and between the above factors and how they inference PCOS are still unclear. In the view point of Traditional Chinese Medicine ,PCOS classifies to "menopathy","infertility" and "Zhengjia , its occurrence exists a close relationship with dysfunction of liver, kidney, spleen and further inducing deficiency, sputum, sluggish stagnant and fire. Many scholars insist that pathogenesis of PCOS is a renal deficiency plus phlegmatic hygrosis. However, after many years clinical observation.

随着研究的不断深入，PCOS日益显示出其复杂性和重要性；他不仅影响到患者的生殖健康及生存质量，而且其异常的激素环境使该类患者对子宫内膜癌、高血压、高血脂及心脑血管意外等病发生危险明显增加；但目前该病的确切发病机制尚不十分清楚，现代医学认为其病因涉及到遗传、内分泌、免疫、代谢等多个方面，以高雄激素血症与高胰岛素血症为主要特征，二者在PCOS发病中的确切作用，目前尚不清楚；PCOS相当于祖国医学的&月经病&&不孕&&癥瘕&等范畴，本病的发生与肝、肾、脾功能失调导致虚、痰、瘀、火有关。

Seeing a volcano erupt is a wonderful experience, and you can really feel the beat by climbing to the summit of Pacaya for a close-up view.

看见火山喷发是美妙的经验，并且您能通过上升真正地感觉敲打到山顶特写镜头视图的Pacaya。

They allow you to get a close up view of any birds, nests, and chicks.

他们让你得到一个封闭的观点，巢，任何鸟类和小鸡。

If you're not convinced enough how pretty the cube effect is, here is another screenshot of virtual desktop switching with Yod'm 3D in close up view.

如果您不相信足够的如何漂亮的立方体效果是，这里是另一个画面的虚拟桌面交换机与yod'm 3D在关闭了看法。

In close up view , it consists of many thin ringlets . the thickness is about 1km

名闻遐迩，把它的光环放大，我们会发觉其实它是由无数小环所组成。

Listen,point and check your answers.

听，指出并且检查你的答案。

Warming needle is one of effective treatment methods for knee arthralgia aggravated by cold,and it is simple,safety,so it should be developed in clinical acupuncture and moxibustion extensively.

但以本院科针灸门诊在2005年1月—2006年6月期间共收治膝痛患者100余例，经过临床的诊断后，其中施以温针治疗的48例，疗效显著，报道如下。1临床资料本组病例48