权益分类	功能权益	普通用户	{{item.name}}会员
{{category.name}}	{{benefitItem.name}}

Research on Highly Reliable GTO PWM Inverter Systems

高可靠GTO PWM逆变器系统研究

基本信息

批准号：
60550202
负责人：
IWATA Koji
金额：
$ 1.41万
依托单位：
Toyota College of Technology (1986)Nagoya University (1985)
依托单位国家：
日本
项目类别：
Grant-in-Aid for General Scientific Research (C)
财政年份：
1985
资助国家：
日本
起止时间：
1985 至 1986
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-60550202/
关键词：
GTO PWM マルチインバータ

项目摘要

Highly reliable GTO PWM multi-inverter systems were studied in this project. The results were as follows,1. Parallel runnings of the two inverters were carried out with individual reactors for each inverter instead of the center-tap-reactors. The performance was satisfactory, although the output voltage regulations increase a little.2. In order to know possibility of separate triangular waveforms for the PWM pulse generation, higher harmonic components of the circulating currents between two inverters were measured with changing the amplitude and phase of the two triangular waveforms. The magnitudes of the harmonic components were minimum when the phase difference of the two triangular waveforms was 180゜.3. The transient phenomena between the single running and the parallel running were studied. The special gate pulse sequences realized smooth transients.4. The dc power sources were separated to increase reliability of the system. The control of the inverters for the case was studied.5. Parallel running of inverters with different capacities are necessary when new sets of inverters are connected to old sets. Therefore, two kinds of power control were contrived and realized using feedback of the circulating currents.6. The detection circuits of the circulating currents were improved so that the system might allow the transient change of the output frequencies.From these results, the GTO PWM multi-inverter systems were realized using the principle of the individual control.

本项目研究了高可靠的GTO PWM多逆变器系统。结果如下： 1．两个逆变器的并行运行是通过每个逆变器的单独电抗器而不是中心抽头电抗器进行的。尽管输出电压调节率略有增加，但性能令人满意。 2．为了了解用于 PWM 脉冲生成的单独三角波的可能性，通过改变两个三角波的幅度和相位来测量两个逆变器之间的循环电流的高次谐波分量。当两个三角波的相位差为180゜.3时，谐波分量的幅值最小。研究了单机运行和并机运行之间的瞬态现象。特殊的门脉冲序列实现了平滑的瞬态。 4．直流电源被分开以提高系统的可靠性。对本案逆变器的控制进行了研究。 5．当新组逆变器与旧组并网时，需要不同容量的逆变器并联运行。为此，设计并实现了两种利用环流反馈的功率控制方法。 6．改进了环流检测电路，使系统允许输出频率的瞬态变化。根据这些结果，利用单独控制的原理实现了GTO PWM多逆变器系统。