TW430731B - Method and apparatus for detecting islanding of parallel connection type solar power generation system - Google Patents

Method and apparatus for detecting islanding of parallel connection type solar power generation system

Info

Publication number
TW430731B
TW430731B TW089113730A TW89113730A TW430731B TW 430731 B TW430731 B TW 430731B TW 089113730 A TW089113730 A TW 089113730A TW 89113730 A TW89113730 A TW 89113730A TW 430731 B TW430731 B TW 430731B
Authority
TW
Taiwan
Prior art keywords
power generation
generation system
solar power
islanding
connection type
Prior art date
Application number
TW089113730A
Other languages
Chinese (zh)
Inventor
Shr-Jie Huang
Fu-Sheng Bai
Original Assignee
Huang Shr Jie
Bai Fu Sheng
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Huang Shr Jie, Bai Fu Sheng filed Critical Huang Shr Jie
Priority to TW089113730A priority Critical patent/TW430731B/en
Application granted granted Critical
Publication of TW430731B publication Critical patent/TW430731B/en

Links

Classifications

    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/40—Solar thermal energy, e.g. solar towers

Landscapes

  • Photovoltaic Devices (AREA)

Abstract

This invention relates to a method and apparatus for detecting islanding of parallel connection type solar power generation system, mainly to make the output current waveform of the solar energy power generation system to be a slightly asymmetrical signal which has unequal time interval for the upper and the lower cycle. This asymmetrical signal will not cause any influence on the frequency of power system parallel connected, when the power supply is normal. Once the islanding phenomenon occurs in the solar power generation system, the asymmetrical signal can make the frequency of exporting end voltage of the solar power generation system change. Therefore, by detecting whether the variation of this frequency is greater than a setting value, the islanding phenomenon can be detected, and the connection between solar power generation system and the power system can be separated immediately.
TW089113730A 2000-07-11 2000-07-11 Method and apparatus for detecting islanding of parallel connection type solar power generation system TW430731B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
TW089113730A TW430731B (en) 2000-07-11 2000-07-11 Method and apparatus for detecting islanding of parallel connection type solar power generation system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
TW089113730A TW430731B (en) 2000-07-11 2000-07-11 Method and apparatus for detecting islanding of parallel connection type solar power generation system

Publications (1)

Publication Number Publication Date
TW430731B true TW430731B (en) 2001-04-21

Family

ID=21660349

Family Applications (1)

Application Number Title Priority Date Filing Date
TW089113730A TW430731B (en) 2000-07-11 2000-07-11 Method and apparatus for detecting islanding of parallel connection type solar power generation system

Country Status (1)

Country Link
TW (1) TW430731B (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7843082B2 (en) 2005-11-10 2010-11-30 Ablerex Electronics Co., Ltd. Islanding detection apparatus for a distributed generation power system and detection method therefor
TWI448034B (en) * 2011-12-19 2014-08-01 Darfon Electronics Corp Solar inverter system and control method thereof
TWI586077B (en) * 2012-10-09 2017-06-01 伊克斯卡萊柏智慧財產有限責任公司 Multimode distribution systems and methods for providing power from power sources to power consuming devices

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7843082B2 (en) 2005-11-10 2010-11-30 Ablerex Electronics Co., Ltd. Islanding detection apparatus for a distributed generation power system and detection method therefor
TWI448034B (en) * 2011-12-19 2014-08-01 Darfon Electronics Corp Solar inverter system and control method thereof
TWI586077B (en) * 2012-10-09 2017-06-01 伊克斯卡萊柏智慧財產有限責任公司 Multimode distribution systems and methods for providing power from power sources to power consuming devices

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Legal Events

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GD4A Issue of patent certificate for granted invention patent
MM4A Annulment or lapse of patent due to non-payment of fees