Simulation and Design of Shunt Active Power Filter in Three-Phase Three-Wire System

The parameter design idea of the DC side energy storage component in the single-phase PWM converter is applied into three-phase three-wire system, and the values of the voltage and capacitance at the DC side are determined.

将单相变流器直流侧储能元件的参数设计思想应用在三相三线制系统中，确定了直流侧电压值和电容值。

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It is suitable for both three-phase three-wire system and three-phase four-wire system.

该公式既适合于三相三线制系统，也适合于三相四线制系统。

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Sharing a brusque, outdoor, spartan, tie-less appearance ( though Alan remained faithful to his sports jacket, in contrast to the leather jacket worn by the philosopher), they were rather alike in this intensity and seriousness.

他们有着同样的粗鲁、随便、简单、不羁的外表，要说有什么区别，也就是艾伦喜欢运动夹克，而那位哲学家喜欢皮夹克。在对待问题的痴迷和严肃方面，他们也非常相像。

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For this sports style, the jacket will be often a biker or aviator leather one with fur on the reverse.

运动类型的夹克多为摩托服和飞行服上带毛的里料。

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Yes, please. I'm looking for a sports jacket that will wear well.

好的，谢谢。我在看有没有一种耐穿的运动夹克。

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I am a Hollywood writer; So I put on a sports jacket and take off my brain.

我是个好莱坞作家；所以嘛，我穿上运动衣而脱下脑袋。

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Knitted ties have the appeal that they can be worn in a formal way with business suits, or more informal as with a blazer or sports jacket, he says.

针织领带的吸引力在于，它们可以以正式的方式搭配商务套装，也可以更休闲地搭配便装或运动夹克，他说。

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I used to be an actor, said Mr. Jiang, dressed in jeans, a black sports jacket and a black hat.

姜文身穿牛仔裤和黑色休闲西服，戴着一顶黑帽子。他说，我曾经是个演员。

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As for his own style, I'm a jeans and a T-shirt guy, he says, and I like to accessorize by wearing a watch or necklace or I'll wear a sports jacket with some jeans.

至于自己的风格，我是一个穿着牛仔裤和T恤的家伙，他说，我喜欢戴手表或项链来装饰，或者穿一件运动夹克来搭一条牛仔裤。

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Wearing a dress shirt, sports jacket and jeans, Phelps walked onto the makeshift stage to cheers from thousands of people, many of whom arrived several hours before the event.

身穿礼服衬衫，运动夹克和牛仔裤的菲尔普斯走上临时舞台，下面是成千上万的欢呼声，他们中有很多前几个小时就来到了这里。

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He cut a figure very different from that of the twenty-two-year old in the shabby sports jacket, sharp but shy with a hesitant voice that had trouble with one language, let alone four.

他的形象，完全不同于一个22岁，穿着旧运动服，尖锐但却害羞，说话吞吞吐吐，就算说一种语言都成问题，更不用说四种语言。

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My life is a series of these crises that I came home one night, some month ago, and I went to the closet in my bedroom, and a moth ate my sports jacket.

我的一生就是一系列这样的危机。比如几个月之前的夜里我回到家里，我打开我卧室里的壁橱，发现一只蛀虫吃掉了我的粗花呢夹克。

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The androgynous glamour of his former wardrobe has been discarded, but he still sports a dapper black jacket and a pair of expensive leather gloves.

他过去那个雌雄同体魔力的衣柜已经被抛弃。但是他还是穿了一件精神的黑外套和一双昂贵的皮手套。

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Do I have to wear a suit to the dinner, or will a sports jacket be good enough?

我必须穿套装赴宴吗？还是只穿运动夹克就可以？

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The fluid is a three-phase system composed of air, liquid and solid and its foa-ming agent is DF and stabilizing agent is a common organic high molecular polymer.

这种钻井液为气、液、固三相体系，泡沫剂选用DF-1，稳泡剂为一般的有机高分子聚合物。

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In the system of SIPSE, we found a stable peculiar phenomenon of three-phase system, then we initially identified components of the three-phase systems, and made a preliminary estimation.

并于本体系的诱导相变萃取中，发现一个稳定的三相过渡系统，初步鉴定三相系统的成分，并做推测。

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This paper analyzes and calculates the negative current and harmonics of the two-phase system of the impedance-matching balance transformer, discusses the influence of electrical traction on operation of the three-phase system.

本文对阻抗匹配平衡变压器两相系统的负序电流和谐波含量进行了分析计算，并讨论了牵引负荷变化对三相系统的影响。

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A method which detects harmonic current of three-phase system with DSP based on theory of instantaneous reactive power is presented in this paper. The simulation and experiment results show that the scheme is reliable.

根据瞬时无功理论，提出基于DSP的谐波电流检测方法，实现了谐波电流和无功电流的实时、快速检测。

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Mineral flotation froth is a gas-liquid-solid three-phase system, and the type of froth featuring high gas holdup, poor fluidity and too high stability usually causes processing problems.

矿物浮选泡沫是一种气液固三相泡沫体系，对于那些气含率高、流动性差、稳定性高的泡沫而言，普遍存在后续处理难的问题。

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Multiphase system has many similarities with three-phase system in principle, but also many new features. So there are still some problems in theory and practices which are worth research and need to be improved.

多相系统与三相系统在原理方面既有相似之处，又引入了很多新的内容，在控制理论和实践应用方面，仍存在较多值得研究和有待完善之处。

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