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

Diode Converter Power-Factor Improvement with Nonlinear Reactor

使用非线性电抗器改善二极管转换器功率因数

基本信息

批准号：
09555091
负责人：
KOGA Kunio
金额：
$ 3.52万
依托单位：
Hiroshima National College of Maritime Technology
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (B)
财政年份：
1997
资助国家：
日本
起止时间：
1997 至 1999
项目状态：
已结题

项目摘要

This report is a summary of the research result to research topic "Diode converter power-factor improvement with a nonlinear reactor" based on science research expense subsidy base research (B) (2). This research has aimed to improve diode converter power-factor by the method of inserting a nonlinear reactor which is the passive element in the power supply side. First of all, the power-factor improvement characteristic of the diode converter with a nonlinear reactor was clarified by the theory and the experiment. A nonlinear reactor can be achieved with an orthogonal type magnetic core. However, because the magnetic flux distribution of a nonlinear reactor with an orthogonal magnetic core is complex, the design is very difficult. Then, the method of designing a nonlinear reactor with a partial gap in the yoke was established. As a result, the design and the manufacture of a nonlinear reactor became easy. It has been understood to be able to improve power-factor up to 90% with a manufactured nonlinear reactor.Next, there is an error because the method of theoretically calculating the power-factor improvement characteristic is an approximate method. This theory is assumed that the inductance of a nonlinear reactor is 0 or infinity. Therefore, the error occurs. Then, the error of a theoretical characteristic when differing from this assumption was clarified by the computer simulation. As a result, the range of the error in the system design by a theoretical characteristic becomes clear and the accuracy of the system design has improved.In addition, various characteristics of diode converter power-factor etc. when a nonlinear reactor was not used were theoretically clarified. As a result, the effects of the power-factor improvement method with a nonlinear reactor can have been compared.

本报告是在科研经费补助基地研究(B)(2)的基础上，对课题“用非线性电抗器改善二极管变流器功率因数”的研究成果总结。本研究旨在通过在电源侧插入无源元件--非线性电抗器的方法来提高二极管变流器的功率因数。首先，从理论和实验两方面阐明了带非线性电抗器的二极管变流器的功率因数改善特性。采用正交型磁芯可以实现非线性电抗器。然而，由于具有正交磁芯的非线性电抗器的磁通分布比较复杂，设计难度很大。在此基础上，建立了带部分间隙的非线性电抗器的设计方法。因此，设计和制造非线性电抗器变得很容易。据了解，利用制造的非线性电抗器可以将功率因数提高到90%。其次，存在误差，因为从理论上计算功率因数改善特性的方法是一种近似方法。该理论假定非线性电抗器的电感为0或无穷大。因此，会出现错误。然后，通过计算机模拟，澄清了与这一假设不同的理论特性的误差。从而使理论特性在系统设计中的误差范围变得清晰，提高了系统设计的精度，并从理论上阐明了不使用非线性电抗器时二极管变流器功率因数等的各种特性。因此，可以比较具有非线性电抗器的功率因数改善方法的效果。