Power smoothing by controlling stored energy in capacitor of photovoltaic power system

Junichi Arai, Tsuyoshi Takada, Kaoru Koyanagi, Ryuichi Yokoyama

Research output: Chapter in Book/Report/Conference proceedingConference contribution

4 Citations (Scopus)

Abstract

Installation of the photovoltaic power system on the roof of houses is increasing rapidly. The photovoltaic power system has two typical problems, one is large power output change depending on climate change, and the other is over voltage in distribution line due to reverse power flow. These problems will be remarkable subjects for large amount of installation of photovoltaic power system in near future. This paper discussed countermeasures for these problems. We propose an output power smoothing method that a dc capacitor is assumed and stored energy is controlled to make the output smooth, an idea for determining the capacity of the capacitor based on measured data is explained. We also propose a flexible control for a photovoltaic power system with active power and reactive power controls against conventional one that has constant unity power factor, because reactive power is able to contribute over voltage suppression in distribution line. Proposed controllers are applied to a photovoltaic power system for a single phase ac output with three wires, and performance is confirmed by ATPDraw simulation.

Original languageEnglish
Title of host publicationAsia-Pacific Power and Energy Engineering Conference, APPEEC
DOIs
Publication statusPublished - 2012
Event2012 Asia-Pacific Power and Energy Engineering Conference, APPEEC 2012 - Shanghai
Duration: 2012 Mar 272012 Mar 29

Other

Other2012 Asia-Pacific Power and Energy Engineering Conference, APPEEC 2012
CityShanghai
Period12/3/2712/3/29

Fingerprint

Reactive power
Capacitors
Electric potential
Climate change
Power control
Roofs
Wire
Controllers

Keywords

  • Control
  • Inverter
  • Photovoltaic power system
  • Renewable energy
  • Smoothing

ASJC Scopus subject areas

  • Energy Engineering and Power Technology

Cite this

Arai, J., Takada, T., Koyanagi, K., & Yokoyama, R. (2012). Power smoothing by controlling stored energy in capacitor of photovoltaic power system. In Asia-Pacific Power and Energy Engineering Conference, APPEEC [6307153] https://doi.org/10.1109/APPEEC.2012.6307153

Power smoothing by controlling stored energy in capacitor of photovoltaic power system. / Arai, Junichi; Takada, Tsuyoshi; Koyanagi, Kaoru; Yokoyama, Ryuichi.

Asia-Pacific Power and Energy Engineering Conference, APPEEC. 2012. 6307153.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Arai, J, Takada, T, Koyanagi, K & Yokoyama, R 2012, Power smoothing by controlling stored energy in capacitor of photovoltaic power system. in Asia-Pacific Power and Energy Engineering Conference, APPEEC., 6307153, 2012 Asia-Pacific Power and Energy Engineering Conference, APPEEC 2012, Shanghai, 12/3/27. https://doi.org/10.1109/APPEEC.2012.6307153
Arai J, Takada T, Koyanagi K, Yokoyama R. Power smoothing by controlling stored energy in capacitor of photovoltaic power system. In Asia-Pacific Power and Energy Engineering Conference, APPEEC. 2012. 6307153 https://doi.org/10.1109/APPEEC.2012.6307153
Arai, Junichi ; Takada, Tsuyoshi ; Koyanagi, Kaoru ; Yokoyama, Ryuichi. / Power smoothing by controlling stored energy in capacitor of photovoltaic power system. Asia-Pacific Power and Energy Engineering Conference, APPEEC. 2012.
@inproceedings{6c819c8a9faa4fd4abcbf61a79671c3f,
title = "Power smoothing by controlling stored energy in capacitor of photovoltaic power system",
abstract = "Installation of the photovoltaic power system on the roof of houses is increasing rapidly. The photovoltaic power system has two typical problems, one is large power output change depending on climate change, and the other is over voltage in distribution line due to reverse power flow. These problems will be remarkable subjects for large amount of installation of photovoltaic power system in near future. This paper discussed countermeasures for these problems. We propose an output power smoothing method that a dc capacitor is assumed and stored energy is controlled to make the output smooth, an idea for determining the capacity of the capacitor based on measured data is explained. We also propose a flexible control for a photovoltaic power system with active power and reactive power controls against conventional one that has constant unity power factor, because reactive power is able to contribute over voltage suppression in distribution line. Proposed controllers are applied to a photovoltaic power system for a single phase ac output with three wires, and performance is confirmed by ATPDraw simulation.",
keywords = "Control, Inverter, Photovoltaic power system, Renewable energy, Smoothing",
author = "Junichi Arai and Tsuyoshi Takada and Kaoru Koyanagi and Ryuichi Yokoyama",
year = "2012",
doi = "10.1109/APPEEC.2012.6307153",
language = "English",
isbn = "9781457705472",
booktitle = "Asia-Pacific Power and Energy Engineering Conference, APPEEC",

}

TY - GEN

T1 - Power smoothing by controlling stored energy in capacitor of photovoltaic power system

AU - Arai, Junichi

AU - Takada, Tsuyoshi

AU - Koyanagi, Kaoru

AU - Yokoyama, Ryuichi

PY - 2012

Y1 - 2012

N2 - Installation of the photovoltaic power system on the roof of houses is increasing rapidly. The photovoltaic power system has two typical problems, one is large power output change depending on climate change, and the other is over voltage in distribution line due to reverse power flow. These problems will be remarkable subjects for large amount of installation of photovoltaic power system in near future. This paper discussed countermeasures for these problems. We propose an output power smoothing method that a dc capacitor is assumed and stored energy is controlled to make the output smooth, an idea for determining the capacity of the capacitor based on measured data is explained. We also propose a flexible control for a photovoltaic power system with active power and reactive power controls against conventional one that has constant unity power factor, because reactive power is able to contribute over voltage suppression in distribution line. Proposed controllers are applied to a photovoltaic power system for a single phase ac output with three wires, and performance is confirmed by ATPDraw simulation.

AB - Installation of the photovoltaic power system on the roof of houses is increasing rapidly. The photovoltaic power system has two typical problems, one is large power output change depending on climate change, and the other is over voltage in distribution line due to reverse power flow. These problems will be remarkable subjects for large amount of installation of photovoltaic power system in near future. This paper discussed countermeasures for these problems. We propose an output power smoothing method that a dc capacitor is assumed and stored energy is controlled to make the output smooth, an idea for determining the capacity of the capacitor based on measured data is explained. We also propose a flexible control for a photovoltaic power system with active power and reactive power controls against conventional one that has constant unity power factor, because reactive power is able to contribute over voltage suppression in distribution line. Proposed controllers are applied to a photovoltaic power system for a single phase ac output with three wires, and performance is confirmed by ATPDraw simulation.

KW - Control

KW - Inverter

KW - Photovoltaic power system

KW - Renewable energy

KW - Smoothing

UR - http://www.scopus.com/inward/record.url?scp=84870529921&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84870529921&partnerID=8YFLogxK

U2 - 10.1109/APPEEC.2012.6307153

DO - 10.1109/APPEEC.2012.6307153

M3 - Conference contribution

AN - SCOPUS:84870529921

SN - 9781457705472

BT - Asia-Pacific Power and Energy Engineering Conference, APPEEC

ER -