Modified Schemes of Control and Modulation of Neutral-Point-Clamped Inverters of PV Installation

被引：0
|
作者：
Oleschuk, Valentin [1 ]
Ermuratskii, Vladimir [1 ]
机构：
[1] Moldavian Acad Sci, Inst Power Engn, Kishinev, Moldova
来源：
2017 5TH INTERNATIONAL SYMPOSIUM ON ELECTRICAL AND ELECTRONICS ENGINEERING (ISEEE) | 2017年
关键词：
conversion of dc to ac; photovoltaic panels and strings; transformer; converter control;
D O I：
暂无
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
The paper describes and compares algorithms of control and pulsewidth modulation (PWM) of three diode-clamped converters of PV system, insuring both minimization of common-mode voltage and symmetry of the output voltage of system. The analyzed installation includes also three strings of solar panels, connected with dc inputs of the corresponding inverters, and outputs of the inverters are connected specifically with the corresponding windings of power transformer. Results of simulation show remarkable improvement of spectra of winding voltage of the system, and this fact insures to decrease copper losses in the inverter-side windings of power transformer.
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页数：4
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