并联

According to the various feature of present parallel resonance converter's control technique, the control circuit is analyzed profoundly, and the control of converter function state is mainly solved.

本论文针对并联型逆变器现有控制技术的种种问题，对其控制电路进行了较为深入的研究，重点解决了逆变器运行状态的控制问题。

There are a lot of harmonic sources in power systems. It may cause series resonance and parallel resonance between inductive elements and capacitive elements of the power systems.

在电力系统中存在大量的谐波源，使得电力系统网络中感性元件与容性元件之间可能发生串联谐振或者是并联谐振。

On the distribution transformer, whose impedance is independent of varying load while the frequency is higher than 25KHz, and the parallel resonance frequency of which is in 3~10KHz.

由探讨知，杆上配电变压器的并联共振频率约在3~10KHz之间，在此频率范围，信号的分路损失最小，又载波频率立於25KHz时，其分路损失几与负载的变动无关。

On the disribution transformer, whose impedance is independent of varying load while the frequency is higher than 25KHz, and the parallel resonance frequency of which is in 3~10 kHz.

由探讨知，杆上配电变压器的并联共振频率约在3~10kHz之间，在此频率范围，信号的分路损失最小，又载波频率高於25KHz时，其分路损失几与负载的变动无关。

Then a novel control method of PAPF is proposed. PAPF with the proposed control method has excellent performance in damping of both parallel resonance and series resonance, whether the capacitor current is included in the detecting current of PAPF or not. Also the PAPF with proposed method has strong ability in harmonic compensation.

针对这种情况该文提出了一种新的PAPF控制策略，该控制策略可以在进行谐波治理的同时有效抑制负载谐波电流或者系统谐波电压造成的并联电容器与电网阻抗之间的谐振。

This paper,by analyzing the working theory of the voltage stabilizing transformer and the parallel resonance of saturation core coil,explains the influence of the capacitor on the range Voltage stabilization,and also the method to prevent capacitors from being damaged by high vo-ltage is introduced.

通过对稳压变压器工作原理及饱和铁芯线圈并联铁磁谐振的分析，讨论电容对稳压变压器稳压范围的影响。

Passive power filters is adopt widely because it is simple configuration, convenient maintenance, low cost and etc. Otherwise, passive power filters is easy affect by change of system parameters, can' t remove sequential harmonics, and easy arose series and parallel resonance with system.

无源电力滤波器由于其结构简单，维护方便，造价低廉等优点仍然成为目前普遍采用的一种滤波手段，但是无源电力滤波器受到系统结构变化影响较大，不能消除连续谐波，且容易和系统阻抗发生相互作用，引起串联、并联谐振，严重时甚至使系统崩溃。

The present invention provides a multilayered chip capacitor comprising internal electrodes and external electrodes formed to be perpendicular to the internal electrodes, whereby parasitic capacitance is reduced, resulting in no parallel resonance frequency effects.

本发明提供了一种多层片式电容器，该电容器包括内部电极以及垂直于内部电极形成的外部电极，从而降低了寄生电容，并获得了无并联谐振频率的效果。

A new type of tractor shuttle shift with immovable parallel axes gear train structure of parallel power-flow was described. It specifyies on its structure and design method.

摘要介绍了一种采用并联功率流定轴轮系结构的拖拉机新型逆行器的设计开发，着重叙述了该型逆行器的结构特点和设计方法。

The 60kVA three phase photovoltaic grid -connected power system made of three single phase 20kVA photovoltaic grid -connected power equipment based on technology of parallel combined shift phase PWM have been operated.

以移相PWM并联组合技术为基础，采用3 个单相20kVA的光伏并网发电装置组成60kVA三相光伏并网发电装置，已投入运行。关键词：光伏并网；功率组合技术；移相PWM；电流跟踪

Lugalbanda was a god and shepherd king of Uruk where he was worshipped for over a thousand years.

Lugalbanda 是神和被崇拜了一千年多 Uruk古埃及喜克索王朝国王。

I am coming just now,' and went on perfuming himself with Hunut, then he came and sat.

我来只是现在，'歼灭战perfuming自己与胡努特，那麼，他来到和SAT 。