CN101562353B - On-line mutual switching control device of fundamental frequency power supply and variable frequency power supply - Google Patents
On-line mutual switching control device of fundamental frequency power supply and variable frequency power supply Download PDFInfo
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- CN101562353B CN101562353B CN2009100148864A CN200910014886A CN101562353B CN 101562353 B CN101562353 B CN 101562353B CN 2009100148864 A CN2009100148864 A CN 2009100148864A CN 200910014886 A CN200910014886 A CN 200910014886A CN 101562353 B CN101562353 B CN 101562353B
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CN2009100148864A CN101562353B (en) | 2009-05-11 | 2009-05-11 | On-line mutual switching control device of fundamental frequency power supply and variable frequency power supply |
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CN2009100148864A CN101562353B (en) | 2009-05-11 | 2009-05-11 | On-line mutual switching control device of fundamental frequency power supply and variable frequency power supply |
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CN101562353A CN101562353A (en) | 2009-10-21 |
CN101562353B true CN101562353B (en) | 2011-10-05 |
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Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
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CN102377385B (en) * | 2010-08-26 | 2014-04-23 | 日立电梯(广州)自动扶梯有限公司 | Bypass variable-frequency controller with phase detection |
CN109921510B (en) * | 2017-12-12 | 2020-12-18 | 中国电信股份有限公司 | Non-power-off cutting device and method |
CN110451394B (en) * | 2019-08-09 | 2021-01-12 | 康力电梯股份有限公司 | Method for reducing working condition switching time of bypass frequency conversion escalator |
CN110953154A (en) * | 2019-10-31 | 2020-04-03 | 上海斯可络压缩机有限公司 | Screw compressor work frequency conversion online switching system |
CN112234902B (en) * | 2020-09-30 | 2022-02-18 | 台安科技(无锡)有限公司 | Flexible synchronous switching method for high-voltage frequency converter |
CN112994219A (en) * | 2021-03-11 | 2021-06-18 | 国网湖南省电力有限公司 | Synchronous grid-connected control method for double-path alternating current source seamless switching system |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
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CN201113439Y (en) * | 2007-06-19 | 2008-09-10 | 深圳市中传电气技术有限公司 | Large power frequency converter power frequency and variable frequency automatic switching device |
CN201435618Y (en) * | 2009-05-11 | 2010-03-31 | 山东新风光电子科技发展有限公司 | An online switch control unit between power frequency supply and variable frequency power supply |
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2009
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Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
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CN201113439Y (en) * | 2007-06-19 | 2008-09-10 | 深圳市中传电气技术有限公司 | Large power frequency converter power frequency and variable frequency automatic switching device |
CN201435618Y (en) * | 2009-05-11 | 2010-03-31 | 山东新风光电子科技发展有限公司 | An online switch control unit between power frequency supply and variable frequency power supply |
Non-Patent Citations (3)
Title |
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丁学文等.交流电机变频软起动时的问题及解决方法.《电力电子技术》.2001,第35卷(第5期),1,2,5. * |
朱洪波等.高压变频器与工频电源之间软切换方式研究.《电力***自动化》.2004,第28卷(第6期),91-93. * |
赵跃等.回转式空气预热器变频一工频同步切换控制器.《电力自动化设备》.2006,第26卷(第8期),第72页第2栏、图3. * |
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C06 | Publication | ||
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C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
C56 | Change in the name or address of the patentee |
Owner name: XINFENGGUANG ELECTRONICS TECHNOLOGY CO., LTD. Free format text: FORMER NAME: SHANDONG XINFENG PHOTOELECTRIC SCIENCE + TECHNOLOGY DEVELOPMENT CO., LTD. |
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CP01 | Change in the name or title of a patent holder |
Address after: County Road 272500 square Shandong city of Jining province Wenshang County No. 2 Patentee after: Shandong Xinfengguang Electronic Technology Development Co., Ltd. Address before: County Road 272500 square Shandong city of Jining province Wenshang County No. 2 Patentee before: Shandong Xinfeng Photoelectric Science & Technology Development Co., Ltd. |
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C41 | Transfer of patent application or patent right or utility model | ||
CB03 | Change of inventor or designer information |
Inventor after: He Hongchen Inventor after: Li Ruilai Inventor after: Yin Pengfei Inventor after: Xie Daohua Inventor before: He Hongchen Inventor before: Li Ruilai Inventor before: Yin Pengfei |
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COR | Change of bibliographic data | ||
TR01 | Transfer of patent right |
Effective date of registration: 20151209 Address after: Jincheng Road Economic Development Zone 272500 Shandong city of Jining province Wenshang County Patentee after: Shandong Xinfengguang Electronic Technology Development Co., Ltd. Patentee after: Wuyishan Sanken Electric Co. Ltd. Address before: County Road 272500 square Shandong city of Jining province Wenshang County No. 2 Patentee before: Shandong Xinfengguang Electronic Technology Development Co., Ltd. |