Adaptive compensation strategy for the tracking/rejection of signals with time-varying frequency in digital repetitive control systems
Digital repetitive control is a technique which allows to track periodic references and/or reject periodic disturbances. Repetitive controllers are usually designed assuming a fixed frequency for the signals to be tracked/rejected, its main drawback being a dramatic performance decay when this frequ...
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| creator | Ramos, G.A. Olm, J.M. Costa-Castello, R. |
| description | Digital repetitive control is a technique which allows to track periodic references and/or reject periodic disturbances. Repetitive controllers are usually designed assuming a fixed frequency for the signals to be tracked/rejected, its main drawback being a dramatic performance decay when this frequency varies. A usual approach to overcome the problem consists of an adaptive change of the sampling time according to the reference/disturbance period variation. However, this sampling period adaptation implies parametric changes affecting the closed-loop system behavior, that may compromise the system stability. This article presents a design strategy which allows to compensate for the parametric changes caused by sampling period adjustment. Stability of the digital repetitive controller working under time-varying sampling period is analyzed. Theoretical developments are illustrated with experimental results. |
| doi_str_mv | 10.1109/ETFA.2009.5347047 |
| format | Conference Proceeding |
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Theoretical developments are illustrated with experimental results.</description><subject>Adaptive control</subject><subject>Control systems</subject><subject>Digital control</subject><subject>Electrical equipment industry</subject><subject>Electronics industry</subject><subject>Frequency</subject><subject>Programmable control</subject><subject>Sampling methods</subject><subject>Stability analysis</subject><subject>Time varying systems</subject><issn>1946-0740</issn><issn>1946-0759</issn><isbn>9781424427277</isbn><isbn>1424427274</isbn><isbn>9781424427284</isbn><isbn>1424427282</isbn><fulltext>true</fulltext><rsrctype>conference_proceeding</rsrctype><creationdate>2009</creationdate><recordtype>conference_proceeding</recordtype><sourceid>6IE</sourceid><sourceid>RIE</sourceid><recordid>eNpVkEtOwzAQhs2jEqX0AIiNL5DWdhw7WVZVC0iV2JR15Tjj1KV5YJuiXIBzY0GFxGxmRv-vbx4I3VMyo5QU89V2vZgxQopZlnJJuLxA00LmlDPOmWQ5v0RjWnCREJkVV_80Ka__NE5G6DZi8oIIIcUNmnp_IDF4llLBx-hrUak-2BNg3TU9tF4F27XYB6cC1AM2ncNhDzj2-s229dzBAfSPpzPY27pVR48_bdjjYBtITsoN0YaNg_cPaPWAbYsrW9ugjthBD8Gep7XBdUfsBx-g8XdoZCIIpuc8Qa_r1Xb5lGxeHp-Xi01iGc1DokmpiK4oE5kAZSqWGW7KVBngilCqRMGZpiAESDBax7uZJIrmqS5jnZt0gh5-uRYAdr2zTdx3d35x-g1HCG06</recordid><startdate>20090101</startdate><enddate>20090101</enddate><creator>Ramos, G.A.</creator><creator>Olm, J.M.</creator><creator>Costa-Castello, R.</creator><general>IEEE</general><scope>6IE</scope><scope>6IL</scope><scope>CBEJK</scope><scope>RIE</scope><scope>RIL</scope></search><sort><creationdate>20090101</creationdate><title>Adaptive compensation strategy for the tracking/rejection of signals with time-varying frequency in digital repetitive control systems</title><author>Ramos, G.A. ; Olm, J.M. ; Costa-Castello, R.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-i218t-c0ba0cd12656eafd25f4fb3afe4a011a6942c1e66e7efcc008270a183cb0088f3</frbrgroupid><rsrctype>conference_proceedings</rsrctype><prefilter>conference_proceedings</prefilter><language>eng</language><creationdate>2009</creationdate><topic>Adaptive control</topic><topic>Control systems</topic><topic>Digital control</topic><topic>Electrical equipment industry</topic><topic>Electronics industry</topic><topic>Frequency</topic><topic>Programmable control</topic><topic>Sampling methods</topic><topic>Stability analysis</topic><topic>Time varying systems</topic><toplevel>online_resources</toplevel><creatorcontrib>Ramos, G.A.</creatorcontrib><creatorcontrib>Olm, J.M.</creatorcontrib><creatorcontrib>Costa-Castello, R.</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 Xplore</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>Ramos, G.A.</au><au>Olm, J.M.</au><au>Costa-Castello, R.</au><format>book</format><genre>proceeding</genre><ristype>CONF</ristype><atitle>Adaptive compensation strategy for the tracking/rejection of signals with time-varying frequency in digital repetitive control systems</atitle><btitle>2009 IEEE Conference on Emerging Technologies & Factory Automation</btitle><stitle>ETFA</stitle><date>2009-01-01</date><risdate>2009</risdate><spage>1</spage><epage>7</epage><pages>1-7</pages><issn>1946-0740</issn><eissn>1946-0759</eissn><isbn>9781424427277</isbn><isbn>1424427274</isbn><eisbn>9781424427284</eisbn><eisbn>1424427282</eisbn><abstract>Digital repetitive control is a technique which allows to track periodic references and/or reject periodic disturbances. Repetitive controllers are usually designed assuming a fixed frequency for the signals to be tracked/rejected, its main drawback being a dramatic performance decay when this frequency varies. A usual approach to overcome the problem consists of an adaptive change of the sampling time according to the reference/disturbance period variation. However, this sampling period adaptation implies parametric changes affecting the closed-loop system behavior, that may compromise the system stability. This article presents a design strategy which allows to compensate for the parametric changes caused by sampling period adjustment. Stability of the digital repetitive controller working under time-varying sampling period is analyzed. Theoretical developments are illustrated with experimental results.</abstract><pub>IEEE</pub><doi>10.1109/ETFA.2009.5347047</doi><tpages>7</tpages><oa>free_for_read</oa></addata></record> |
| fulltext | fulltext_linktorsrc |
| identifier | ISSN: 1946-0740 |
| ispartof | 2009 IEEE Conference on Emerging Technologies & Factory Automation, 2009, p.1-7 |
| issn | 1946-0740 1946-0759 |
| language | eng |
| recordid | cdi_ieee_primary_5347047 |
| source | IEEE Electronic Library (IEL) Conference Proceedings |
| subjects | Adaptive control Control systems Digital control Electrical equipment industry Electronics industry Frequency Programmable control Sampling methods Stability analysis Time varying systems |
| title | Adaptive compensation strategy for the tracking/rejection of signals with time-varying frequency in digital repetitive control systems |
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