Development of Photovoltaic System using PWM Power Inverter
使用 PWM 功率逆变器的光伏系统的开发
基本信息
- 批准号:07650338
- 负责人:
- 金额:$ 1.02万
- 依托单位:
- 依托单位国家:日本
- 项目类别:Grant-in-Aid for Scientific Research (C)
- 财政年份:1995
- 资助国家:日本
- 起止时间:1995 至 1996
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
The final purpose of our research is a development of a photovoltaic system which has a simple construction, high efficiency and low cost. In this research, we have been planning to clear up the following problems :1. Development of a buck-boost PWM power inverter with high efficiency.2. Establishment of the design method of the photovoltaic system using the high efficiency buck-boost PWM power inverter as an interface of the commercial line and solar cells.First term (1995) : First, to obtain a high efficiency PWM power inverter, we developed a pushpull type PWM power inverter which was constructing with only one switching element and realized soft switching by a switch snubber. As a result the efficiency was improved 5 to 15% compared with the push-pull PWM power inverter with a conventional RCD snubber.Next, we have linked the push-pull PWM power inverter to the utility line and performed experiments on power flow and soft switching characteristics. As a results, this system has a good quality about the transfer characteristics of the power to the load and utility line from the solar cells. However, the realization of the soft switching was difficult in order to be affected by the modulation factor of the inverter and the input voltage of the solar cells.Final term (1996) : We have studied again about the soft switching and developed it which was constructed by only one capacitor. We are developing the PWM power inverter with this soft switching method, now.Furthermore, we examined the relations between the efficiency and materials and winding method of a reactor of the PWM power inverter.Ferrite, amorphous and air core were used as the materials. As a result, the efficiency of the inverter was not much affect by the difference of materials.The PWM power inverter with a no isolation reactor using air core was the best efficiency of 95% than that using other materials.
我们研究的最终目的是开发一种结构简单、效率高、成本低的光伏系统。在本研究中,我们计划解决以下问题:1.高效率升降压PWM逆变器的研制。 2.建立使用高效率升降压PWM功率逆变器作为商业线路和太阳能电池的接口的光伏系统的设计方法。第一学期(1995年):首先,为了获得高效率的PWM功率逆变器,我们开发了一种推挽式PWM功率逆变器,其仅由一个开关元件构成,并通过开关缓冲器实现软开关。结果,与带有传统 RCD 缓冲器的推挽式 PWM 功率逆变器相比,效率提高了 5% 至 15%。接下来,我们将推挽式 PWM 功率逆变器连接到公用线路,并进行了功率流和软开关特性的实验。因此,该系统具有良好的从太阳能电池到负载和公用线路的电力传输特性。然而,由于受逆变器的调制因数和太阳能电池的输入电压的影响,软开关的实现很困难。 期末(1996):我们重新研究了软开关,并开发了仅由一个电容器构成的软开关。我们现在正在开发采用这种软开关方法的PWM功率逆变器。此外,我们还研究了PWM功率逆变器的效率与材料和电抗器的绕制方法之间的关系。材料使用了铁氧体、非晶和空心。因此,逆变器的效率并没有受到材料差异的太大影响。使用空芯的无隔离电抗器的PWM功率逆变器比使用其他材料的逆变器的最佳效率为95%。
项目成果
期刊论文数量(12)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
Michihiko Nagao,Koosuke Harada: "Power Flow of Photoroltaic System using Buck-Boost PWM Power Inreiter" Power Electronics and Drive Systems,Records. (発表予定). (1997)
Michihiko Nagao、Koosuke Harada:“使用降压-升压 PWM 电源 Inreiter 的光伏系统的功率流”电力电子和驱动系统,记录(即将公布)。
- DOI:
- 发表时间:
- 期刊:
- 影响因子:0
- 作者:
- 通讯作者:
Michihiko Nagao and Masatoshi Nakahara: "Study of Soft Switching for High Power-Factor AC/DC Boost Converter by SCAT Simulator"" 1996 National Convention Records of IEE Japan. 279-282 (1996)
Michihiko Nagao 和 Masatoshi Nakahara:“通过 SCAT 模拟器对高功率因数 AC/DC 升压转换器的软开关进行研究””1996 年 IEE 日本全国大会记录。279-282 (1996)
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- 影响因子:0
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長尾道彦,中原正俊: "ソフトスイッチング高力率AC/DCコンバータ" 電気学会半導体電力変換研究会資料. SPC-96-119. 55-60 (1996)
Michihiko Nagao、Masatoshi Nakahara:“软开关高功率因数 AC/DC 转换器”IEEJ 半导体功率转换研究组材料。
- DOI:
- 发表时间:
- 期刊:
- 影响因子:0
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- 通讯作者:
Michihiko Nagao,Koosuke Harada: "power Flow of Photovoltain System suing Buck-Boost PWM Power Inverter" Power Electronies and Drive Systems Records. (発表予定). (1997)
Michihiko Nagao、Koosuke Harada:“使用降压-升压 PWM 功率逆变器的光伏系统的功率流”电力电子和驱动系统记录(即将公布)。
- DOI:
- 发表时间:
- 期刊:
- 影响因子:0
- 作者:
- 通讯作者:
長尾道彦: "ソフトスイッチング高力率昇降圧形AC/DCコンバータ" 電子情報通信学会技術研究報告. PE96-56. 1-6 (1997)
Michihiko Nagao:“软开关高功率因数降压-升压 AC/DC 转换器”IEICE PE96-56 (1997)。
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NAGAO Michihiko其他文献
NAGAO Michihiko的其他文献
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{{ truncateString('NAGAO Michihiko', 18)}}的其他基金
Development of Soft Multi-Resonant AC/DC Converter without Electromagnetic Pollution
无电磁污染软多谐振AC/DC变换器的研制
- 批准号:
12650297 - 财政年份:2000
- 资助金额:
$ 1.02万 - 项目类别:
Grant-in-Aid for Scientific Research (C)
Development of Soft-Switched AC/DC Converter
软开关AC/DC变换器的研制
- 批准号:
09650335 - 财政年份:1997
- 资助金额:
$ 1.02万 - 项目类别:
Grant-in-Aid for Scientific Research (C)
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