Frequency / duty cycle control of LCC resonant converter supplying high voltage very low frequency test systems
Very low frequency (VLF) high-voltage (HV) sinusoidal test waveforms are suitable for testing characteristics and insulation qualities of long buried power cables. Unlike as with conventional PWM converters, a newly developed LCC resonant inverter combined with a symmetrical three-stage voltage mult...
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| creator | Manli Hu Frohleke, N. Bocker, J. |
| description | Very low frequency (VLF) high-voltage (HV) sinusoidal test waveforms are suitable for testing characteristics and insulation qualities of long buried power cables. Unlike as with conventional PWM converters, a newly developed LCC resonant inverter combined with a symmetrical three-stage voltage multiplier rectifier is introduced in this paper to generate VLF HV sinusoidal waves. Due to the wide ranges of output voltage and output load, both the switching frequency and the duty cycle are adopted as control variables. Based on a small-signal equivalent circuit model and a reduced-order transfer function, an average mode current controller is developed for the zero voltage switched LCC resonant converter generating up to 85 kV (RMS) at 0.1 Hz as test voltage. The theoretical analysis and design are verified by simulations and experimental measurements with a prototype setup. |
| format | Conference Proceeding |
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Unlike as with conventional PWM converters, a newly developed LCC resonant inverter combined with a symmetrical three-stage voltage multiplier rectifier is introduced in this paper to generate VLF HV sinusoidal waves. Due to the wide ranges of output voltage and output load, both the switching frequency and the duty cycle are adopted as control variables. Based on a small-signal equivalent circuit model and a reduced-order transfer function, an average mode current controller is developed for the zero voltage switched LCC resonant converter generating up to 85 kV (RMS) at 0.1 Hz as test voltage. 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Unlike as with conventional PWM converters, a newly developed LCC resonant inverter combined with a symmetrical three-stage voltage multiplier rectifier is introduced in this paper to generate VLF HV sinusoidal waves. Due to the wide ranges of output voltage and output load, both the switching frequency and the duty cycle are adopted as control variables. Based on a small-signal equivalent circuit model and a reduced-order transfer function, an average mode current controller is developed for the zero voltage switched LCC resonant converter generating up to 85 kV (RMS) at 0.1 Hz as test voltage. The theoretical analysis and design are verified by simulations and experimental measurements with a prototype setup.</description><subject>Cable insulation</subject><subject>Circuit testing</subject><subject>Control systems</subject><subject>Converter control</subject><subject>Frequency conversion</subject><subject>Insulation testing</subject><subject>Low voltage</subject><subject>Resonance</subject><subject>Resonant converter</subject><subject>Soft switching</subject><subject>System testing</subject><subject>Voltage control</subject><subject>Zero voltage switching</subject><isbn>1424444322</isbn><isbn>9781424444328</isbn><isbn>9789075815139</isbn><isbn>9075815131</isbn><fulltext>true</fulltext><rsrctype>conference_proceeding</rsrctype><creationdate>2009</creationdate><recordtype>conference_proceeding</recordtype><sourceid>6IE</sourceid><sourceid>RIE</sourceid><recordid>eNo9j81KAzEUhSMiqHWewM19gWImP5NkKYNVoeCm-5JJb9qR6WRM0kre3hGl3-bAOfDBuSKVUdpQJXUta26uyX0tmJjhjN2SKqVPOiMkp1zfkbCK-HXC0RV4gt0pF3DFDQgujDmGAYKHddtCxBRGO-bf_owxY4R0mqah9OMeDv3-AOcwZLtHmNcCQ_gGfxFnTBlSSRmP6YHceDskrP5zQTarl037tlx_vL63z-tlb2hedsisVN7LXa2p2BkvG93oTnlFlXPMciUkaxoqOq6NVKpB1jlBrbTNfNVYviCPf9oeEbdT7I82lq1kyjBj-A_hC1Yf</recordid><startdate>200909</startdate><enddate>200909</enddate><creator>Manli Hu</creator><creator>Frohleke, N.</creator><creator>Bocker, J.</creator><general>IEEE</general><scope>6IE</scope><scope>6IL</scope><scope>CBEJK</scope><scope>RIE</scope><scope>RIL</scope></search><sort><creationdate>200909</creationdate><title>Frequency / duty cycle control of LCC resonant converter supplying high voltage very low frequency test systems</title><author>Manli Hu ; Frohleke, N. ; Bocker, J.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-i90t-be2a57ff5d1804d9f56868b7f707cc2a374526604b3895776e2bc40a5a62449a3</frbrgroupid><rsrctype>conference_proceedings</rsrctype><prefilter>conference_proceedings</prefilter><language>eng</language><creationdate>2009</creationdate><topic>Cable insulation</topic><topic>Circuit testing</topic><topic>Control systems</topic><topic>Converter control</topic><topic>Frequency conversion</topic><topic>Insulation testing</topic><topic>Low voltage</topic><topic>Resonance</topic><topic>Resonant converter</topic><topic>Soft switching</topic><topic>System testing</topic><topic>Voltage control</topic><topic>Zero voltage switching</topic><toplevel>online_resources</toplevel><creatorcontrib>Manli Hu</creatorcontrib><creatorcontrib>Frohleke, N.</creatorcontrib><creatorcontrib>Bocker, J.</creatorcontrib><collection>IEEE Electronic Library (IEL) Conference Proceedings</collection><collection>IEEE Proceedings Order Plan All Online (POP All Online) 1998-present by volume</collection><collection>IEEE Xplore All Conference Proceedings</collection><collection>IEEE/IET Electronic Library</collection><collection>IEEE Proceedings Order Plans (POP All) 1998-Present</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>Manli Hu</au><au>Frohleke, N.</au><au>Bocker, J.</au><format>book</format><genre>proceeding</genre><ristype>CONF</ristype><atitle>Frequency / duty cycle control of LCC resonant converter supplying high voltage very low frequency test systems</atitle><btitle>2009 13th European Conference on Power Electronics and Applications</btitle><stitle>EPE</stitle><date>2009-09</date><risdate>2009</risdate><spage>1</spage><epage>10</epage><pages>1-10</pages><isbn>1424444322</isbn><isbn>9781424444328</isbn><eisbn>9789075815139</eisbn><eisbn>9075815131</eisbn><abstract>Very low frequency (VLF) high-voltage (HV) sinusoidal test waveforms are suitable for testing characteristics and insulation qualities of long buried power cables. Unlike as with conventional PWM converters, a newly developed LCC resonant inverter combined with a symmetrical three-stage voltage multiplier rectifier is introduced in this paper to generate VLF HV sinusoidal waves. Due to the wide ranges of output voltage and output load, both the switching frequency and the duty cycle are adopted as control variables. Based on a small-signal equivalent circuit model and a reduced-order transfer function, an average mode current controller is developed for the zero voltage switched LCC resonant converter generating up to 85 kV (RMS) at 0.1 Hz as test voltage. The theoretical analysis and design are verified by simulations and experimental measurements with a prototype setup.</abstract><pub>IEEE</pub><tpages>10</tpages></addata></record> |
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| ispartof | 2009 13th European Conference on Power Electronics and Applications, 2009, p.1-10 |
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| language | eng |
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| source | IEEE Electronic Library (IEL) Conference Proceedings |
| subjects | Cable insulation Circuit testing Control systems Converter control Frequency conversion Insulation testing Low voltage Resonance Resonant converter Soft switching System testing Voltage control Zero voltage switching |
| title | Frequency / duty cycle control of LCC resonant converter supplying high voltage very low frequency test systems |
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