{"id":57756,"date":"2020-05-06T18:27:03","date_gmt":"2020-05-06T12:57:03","guid":{"rendered":"http:\/\/eie.eng.ruh.ac.lk\/dmena\/?post_type=dt_portfolio&#038;p=57756"},"modified":"2020-05-06T18:51:10","modified_gmt":"2020-05-06T13:21:10","slug":"shunt-active-filter-for-compensation-of-current-harmonics-injected-by-non-linear-loads","status":"publish","type":"dt_portfolio","link":"https:\/\/www.eng.ruh.ac.lk\/dmena\/project\/shunt-active-filter-for-compensation-of-current-harmonics-injected-by-non-linear-loads\/","title":{"rendered":"Shunt Active Filter for Compensation of Current Harmonics Injected by Non-Linear Loads"},"content":{"rendered":"<div class=\"wpb-content-wrapper\"><p>[vc_row equal_height=&#8221;yes&#8221; content_placement=&#8221;top&#8221; type=&#8221;vc_default&#8221; css=&#8221;.vc_custom_1584702595643{padding-bottom: 20px !important;}&#8221;][vc_column width=&#8221;1\/2&#8243; css=&#8221;.vc_custom_1572893353553{padding-bottom: 50px !important;}&#8221;]<div id=\"ultimate-heading-334269d7683890396\" class=\"uvc-heading ult-adjust-bottom-margin ultimate-heading-334269d7683890396 uvc-1902  uvc-heading-default-font-sizes\" data-hspacer=\"no_spacer\"  data-halign=\"left\" style=\"text-align:left\"><div class=\"uvc-heading-spacer no_spacer\" style=\"top\"><\/div><div class=\"uvc-main-heading ult-responsive\"  data-ultimate-target='.uvc-heading.ultimate-heading-334269d7683890396 h3'  data-responsive-json-new='{\"font-size\":\"\",\"line-height\":\"\"}' ><h3 style=\"font-weight:bold;margin-bottom:30px;\">Shunt Active Filter for Compensation of Current Harmonics Injected by Non-Linear Loads<\/h3><\/div><\/div>[vc_column_text css=&#8221;.vc_custom_1588769486994{margin-bottom: 30px !important;border-left-width: 3px !important;padding-left: 20px !important;border-left-color: rgba(0,0,0,0.1) !important;border-left-style: solid !important;}&#8221;]K.M.I.U. Ranaweera, W.G.C.A. Sankalpa, G.G.S.C. Gunasekara, G.W.H.L. Rathnakumara, T.R.D.B. Thennakoon[\/vc_column_text][vc_column_text]In this project, a shunt active filter to compensate current harmonics in the utility grid under balanced load condition was developed and tested via simulations and hardware implementation.<\/p>\n<p>&nbsp;<\/p>\n<p><strong><b>Key Words: <\/b><\/strong><\/p>\n<p>Shunt active filter, non-linear loads, balanced system[\/vc_column_text][\/vc_column][vc_column width=&#8221;1\/2&#8243; css=&#8221;.vc_custom_1572893349347{padding-bottom: 50px !important;}&#8221;]<style type=\"text\/css\" data-type=\"the7_shortcodes-inline-css\">.shortcode-single-image-wrap.shortcode-single-image-fbf1774bab691497545b36623b4e397f.enable-bg-rollover .rollover i,\n.shortcode-single-image-wrap.shortcode-single-image-fbf1774bab691497545b36623b4e397f.enable-bg-rollover .rollover-video i {\n  background: -webkit-linear-gradient();\n  background: linear-gradient();\n}\n.shortcode-single-image-wrap.shortcode-single-image-fbf1774bab691497545b36623b4e397f .rollover-icon {\n  font-size: 32px;\n  color: #ffffff;\n  min-width: 44px;\n  min-height: 44px;\n  line-height: 44px;\n  border-radius: 100px;\n  border-style: solid;\n  border-width: 0px;\n}\n.dt-icon-bg-on.shortcode-single-image-wrap.shortcode-single-image-fbf1774bab691497545b36623b4e397f .rollover-icon {\n  background: rgba(255,255,255,0.3);\n  box-shadow: none;\n}\n<\/style><div class=\"shortcode-single-image-wrap shortcode-single-image-fbf1774bab691497545b36623b4e397f alignnone  enable-bg-rollover dt-icon-bg-off\" style=\"margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; width:481px;\"><div class=\"shortcode-single-image\"><div class=\"fancy-media-wrap  layzr-bg\" style=\"\"><img class=\"preload-me lazy-load aspect\" src=\"data:image\/svg+xml,%3Csvg%20xmlns%3D&#39;http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg&#39;%20viewBox%3D&#39;0%200%20481%20376&#39;%2F%3E\" data-src=\"https:\/\/www.eng.ruh.ac.lk\/dmena\/wp-content\/uploads\/2020\/05\/iromi-02_2.png\" data-srcset=\"https:\/\/www.eng.ruh.ac.lk\/dmena\/wp-content\/uploads\/2020\/05\/iromi-02_2.png 481w\" loading=\"eager\" sizes=\"(max-width: 481px) 100vw, 481px\" width=\"481\" height=\"376\"  data-dt-location=\"https:\/\/www.eng.ruh.ac.lk\/dmena\/project\/shunt-active-filter-for-compensation-of-current-harmonics-injected-by-non-linear-loads\/iromi-02_2\/\" style=\"--ratio: 481 \/ 376;\" alt=\"\" \/><\/div><\/div><\/div>[\/vc_column][vc_column]<div id=\"ultimate-heading-391569d7683891233\" class=\"uvc-heading ult-adjust-bottom-margin ultimate-heading-391569d7683891233 uvc-8820  uvc-heading-default-font-sizes\" data-hspacer=\"no_spacer\"  data-halign=\"center\" style=\"text-align:center\"><div class=\"uvc-heading-spacer no_spacer\" style=\"top\"><\/div><div class=\"uvc-main-heading ult-responsive\"  data-ultimate-target='.uvc-heading.ultimate-heading-391569d7683891233 h3'  data-responsive-json-new='{\"font-size\":\"\",\"line-height\":\"\"}' ><h3 style=\"--font-weight:theme;\">Overview<\/h3><\/div><\/div>[vc_column_text]Increased level of total harmonic distortion (THD) of the grid current is becoming a problem in distribution grids with significant number of power electronic based systems. Distributed generation systems are connected to the grid via power electronic converters. Power electronic converters are one of the major sources of harmonics. Therefore, solutions are needed to overcome this issue. In this project, we propose a shunt active filter which can be used in distribution grids to reduce the THD level in the grid current. The system consists of a voltage source inverter (VSI) with DC link capacitor, and the DC link is powered by an energy storage unit as shown in Figure 1. Battery bank is proposed for the energy storage unit. The load shown in the figure is a non-linear load or a distributed generator connected to the utility grid via a power electronic converter. Therefore, the load current (<em><i>I<\/i><\/em><em><sub><i>load<\/i><\/sub><\/em>) is non-sinusoidal. Without the active filter, the grid current (<em><i>I<\/i><\/em><em><sub><i>grid<\/i><\/sub><\/em>) is also non-sinusoidal as grid current equals the load current. The filter current (<em><i>I<\/i><\/em><em><sub><i>comp<\/i><\/sub><\/em>) is controlled such that it injects a compensation current to the utility grid to shape the grid current to be sinusoidal.<\/p>\n<p><strong><b>Project Contacts:<\/b><\/strong><\/p>\n<p>K.M.I.U. Ranaweera, <a href=\"mailto:iromi@eie.ruh.ac.lk\"><u>iromi@eie.ruh.ac.lk<\/u><\/a>, 0701606598[\/vc_column_text][\/vc_column][\/vc_row][vc_row full_width=&#8221;stretch_row&#8221; bg_type=&#8221;image&#8221; bg_override=&#8221;ex-full&#8221; type=&#8221;vc_default&#8221; css=&#8221;.vc_custom_1572893362996{padding-bottom: 70px !important;}&#8221;][vc_column offset=&#8221;vc_col-lg-offset-0 vc_col-lg-12 vc_col-md-offset-0 vc_col-md-12&#8243;]<style type=\"text\/css\" data-type=\"the7_shortcodes-inline-css\">.gallery-carousel-shortcode.gallery-carousel-shortcode-id-1e8914a99ec4cee806504e45bec5f7c4 .owl-nav a {\n  width: 36px;\n  height: 36px;\n  border-radius: 500px;\n}\n.dt-arrow-border-on.gallery-carousel-shortcode.gallery-carousel-shortcode-id-1e8914a99ec4cee806504e45bec5f7c4 .owl-nav a:not(:hover):before {\n  border-width: 0px;\n}\n.dt-arrow-hover-border-on.gallery-carousel-shortcode.gallery-carousel-shortcode-id-1e8914a99ec4cee806504e45bec5f7c4 .owl-nav a:hover:after {\n  border-width: 0px;\n}\n.gallery-carousel-shortcode.gallery-carousel-shortcode-id-1e8914a99ec4cee806504e45bec5f7c4 .owl-nav a.owl-prev {\n  top: 50%;\n  transform: translateY(calc(-50% + 0px));\n  left: -43px;\n}\n@media all and (-ms-high-contrast: none) {\n  .gallery-carousel-shortcode.gallery-carousel-shortcode-id-1e8914a99ec4cee806504e45bec5f7c4 .owl-nav a.owl-prev {\n    transform: translateY(-50%);\n    margin-top: 0px;\n  }\n}\n.gallery-carousel-shortcode.gallery-carousel-shortcode-id-1e8914a99ec4cee806504e45bec5f7c4 .owl-nav a.owl-prev i {\n  padding: 0px 0px 0px 0px;\n}\n.gallery-carousel-shortcode.gallery-carousel-shortcode-id-1e8914a99ec4cee806504e45bec5f7c4 .owl-nav a.owl-next {\n  top: 50%;\n  transform: translateY(calc(-50% + 0px));\n  right: -43px;\n}\n@media all and (-ms-high-contrast: none) {\n  .gallery-carousel-shortcode.gallery-carousel-shortcode-id-1e8914a99ec4cee806504e45bec5f7c4 .owl-nav a.owl-next {\n    transform: translateY(-50%);\n    margin-top: 0px;\n  }\n}\n.gallery-carousel-shortcode.gallery-carousel-shortcode-id-1e8914a99ec4cee806504e45bec5f7c4 .owl-nav a.owl-next i {\n  padding: 0px 0px 0px 0px;\n}\n.gallery-carousel-shortcode.gallery-carousel-shortcode-id-1e8914a99ec4cee806504e45bec5f7c4 .owl-nav i {\n  font-size: 16px;\n}\n.gallery-carousel-shortcode.gallery-carousel-shortcode-id-1e8914a99ec4cee806504e45bec5f7c4 .owl-nav a:not(:hover) i,\n.gallery-carousel-shortcode.gallery-carousel-shortcode-id-1e8914a99ec4cee806504e45bec5f7c4 .owl-nav a:not(:hover) i:before {\n  color: #ffffff;\n  background: none;\n}\n.gallery-carousel-shortcode.gallery-carousel-shortcode-id-1e8914a99ec4cee806504e45bec5f7c4 .owl-nav a:hover i,\n.gallery-carousel-shortcode.gallery-carousel-shortcode-id-1e8914a99ec4cee806504e45bec5f7c4 .owl-nav a:hover i:before {\n  color: rgba(255,255,255,0.75);\n  background: none;\n}\n.gallery-carousel-shortcode.gallery-carousel-shortcode-id-1e8914a99ec4cee806504e45bec5f7c4 .owl-dots {\n  top: calc(100% + 20px);\n  left: 50%;\n  transform: translateX(calc(-50% + 0px));\n}\n@media all and (-ms-high-contrast: none) {\n  .gallery-carousel-shortcode.gallery-carousel-shortcode-id-1e8914a99ec4cee806504e45bec5f7c4 .owl-dots {\n    transform: translateX(-50%);\n    margin-left: 0px;\n  }\n}\n.gallery-carousel-shortcode.gallery-carousel-shortcode-id-1e8914a99ec4cee806504e45bec5f7c4 .owl-dot {\n  width: 10px;\n  height: 10px;\n  margin: 0 8px;\n}\n@media screen and (max-width: 778px) {\n  .gallery-carousel-shortcode.gallery-carousel-shortcode-id-1e8914a99ec4cee806504e45bec5f7c4.hide-arrows .owl-nav a {\n    display: none;\n  }\n}\n@media screen and (max-width: 778px) {\n  .gallery-carousel-shortcode.gallery-carousel-shortcode-id-1e8914a99ec4cee806504e45bec5f7c4.reposition-arrows .owl-nav .owl-prev {\n    top: 50%;\n    transform: translateY(calc(-50% + 0px));\n    left: 10px;\n  }\n  .gallery-carousel-shortcode.gallery-carousel-shortcode-id-1e8914a99ec4cee806504e45bec5f7c4.reposition-arrows .owl-nav .owl-next {\n    top: 50%;\n    transform: translateY(calc(-50% + 0px));\n    right: 10px;\n  }\n}\n@media screen and (max-width: 778px) and all and (-ms-high-contrast: none) {\n  .gallery-carousel-shortcode.gallery-carousel-shortcode-id-1e8914a99ec4cee806504e45bec5f7c4.reposition-arrows .owl-nav .owl-prev {\n    transform: translateY(-50%);\n    margin-top: 0px;\n  }\n}\n@media screen and (max-width: 778px) and all and (-ms-high-contrast: none) {\n  .gallery-carousel-shortcode.gallery-carousel-shortcode-id-1e8914a99ec4cee806504e45bec5f7c4.reposition-arrows .owl-nav .owl-next {\n    transform: translateY(-50%);\n    margin-top: 0px;\n  }\n}\n.gallery-carousel-shortcode.gallery-carousel-shortcode-id-1e8914a99ec4cee806504e45bec5f7c4 figure,\n.gallery-carousel-shortcode.gallery-carousel-shortcode-id-1e8914a99ec4cee806504e45bec5f7c4 .rollover,\n.gallery-carousel-shortcode.gallery-carousel-shortcode-id-1e8914a99ec4cee806504e45bec5f7c4 img,\n.gallery-carousel-shortcode.gallery-carousel-shortcode-id-1e8914a99ec4cee806504e45bec5f7c4 .gallery-rollover {\n  border-radius: 0px;\n}\n.gallery-carousel-shortcode.gallery-carousel-shortcode-id-1e8914a99ec4cee806504e45bec5f7c4.enable-bg-rollover .gallery-rollover {\n  background: rgba(0,0,0,0.5);\n  box-shadow: none;\n  background: -webkit-linear-gradient();\n  background: linear-gradient();\n}\n.gallery-carousel-shortcode.gallery-carousel-shortcode-id-1e8914a99ec4cee806504e45bec5f7c4.enable-img-shadow .owl-stage-outer {\n  padding: 34px 0;\n}\n.gallery-carousel-shortcode.gallery-carousel-shortcode-id-1e8914a99ec4cee806504e45bec5f7c4.enable-bg-rollover.hover-scale figure .rollover:after {\n  background: rgba(0,0,0,0.5);\n  box-shadow: none;\n  background: -webkit-linear-gradient();\n  background: linear-gradient();\n}\n.gallery-carousel-shortcode.gallery-carousel-shortcode-id-1e8914a99ec4cee806504e45bec5f7c4.gallery-shortcode .gallery-zoom-ico {\n  width: 44px;\n  height: 44px;\n  line-height: 44px;\n  border-radius: 100px;\n  margin: -22px 0 0 -22px;\n  border-width: 0px;\n}\n.dt-icon-bg-on.gallery-carousel-shortcode.gallery-carousel-shortcode-id-1e8914a99ec4cee806504e45bec5f7c4.gallery-shortcode .gallery-zoom-ico {\n  background: rgba(255,255,255,0.3);\n  box-shadow: none;\n}\n.gallery-carousel-shortcode.gallery-carousel-shortcode-id-1e8914a99ec4cee806504e45bec5f7c4.gallery-shortcode .gallery-zoom-ico:before,\n.gallery-carousel-shortcode.gallery-carousel-shortcode-id-1e8914a99ec4cee806504e45bec5f7c4.gallery-shortcode .gallery-zoom-ico span {\n  font-size: 32px;\n  line-height: 44px;\n  color: #ffffff;\n  background: none;\n}\n<\/style><div class=\"owl-carousel gallery-carousel-shortcode gallery-shortcode  dt-gallery-container dt-owl-carousel-call gallery-carousel-shortcode-id-1e8914a99ec4cee806504e45bec5f7c4 quick-scale-img enable-bg-rollover meta-info-off dt-arrow-border-on dt-arrow-hover-border-on bullets-small-dot-stroke reposition-arrows dt-icon-bg-off arrows-bg-on disable-arrows-hover-bg arrows-hover-bg-on  hover-fade \" data-scroll-mode=\"1\" data-col-num=\"3\" data-wide-col-num=\"3\" data-laptop-col=\"3\" data-h-tablet-columns-num=\"3\" data-v-tablet-columns-num=\"2\" data-phone-columns-num=\"1\" data-col-gap=\"30\" data-stage-padding=\"0\" data-speed=\"800\" data-autoplay=\"false\" data-autoplay_speed=\"6000\" data-arrows=\"true\" data-bullet=\"false\" data-next-icon=\"icon-ar-017-r\" data-prev-icon=\"icon-ar-017-l\" data-img-shadow-size=\"12px\" data-img-shadow-spread=\"3px\"><\/div>[\/vc_column][\/vc_row][vc_row equal_height=&#8221;yes&#8221; content_placement=&#8221;top&#8221; type=&#8221;vc_default&#8221; el_class=&#8221;reverse-row-on-mobile&#8221; css=&#8221;.vc_custom_1572893387563{margin-bottom: -40px !important;}&#8221;][vc_column width=&#8221;1\/2&#8243; css=&#8221;.vc_custom_1572893376547{padding-bottom: 20px !important;}&#8221;][\/vc_column][vc_column width=&#8221;1\/2&#8243; css=&#8221;.vc_custom_1572893381514{padding-bottom: 50px !important;}&#8221;][\/vc_column][vc_column]<div id=\"ultimate-heading-339969d7683891892\" class=\"uvc-heading ult-adjust-bottom-margin ultimate-heading-339969d7683891892 uvc-8817  uvc-heading-default-font-sizes\" data-hspacer=\"no_spacer\"  data-halign=\"center\" style=\"text-align:center\"><div class=\"uvc-heading-spacer no_spacer\" style=\"top\"><\/div><div class=\"uvc-main-heading ult-responsive\"  data-ultimate-target='.uvc-heading.ultimate-heading-339969d7683891892 h3'  data-responsive-json-new='{\"font-size\":\"\",\"line-height\":\"\"}' ><h3 style=\"--font-weight:theme;\">Publications<\/h3><\/div><\/div><div class=\"standard-arrow list-divider bullet-top\"><ul>\n<li>K.M.I.U. Ranaweera, W.G.C.A. Sankalpa, G.G.S.C. Gunasekara, G.W.H.L. Rathnakumara, T.R.D.B. Thennakoon, Comparative Analysis of Reference Current Generation Techniques for a Three Phase Shunt Active Power Filter, 6th Annual Research Symposium Organized by University of Ruhuna, 2019.<\/li>\n<li>K.M.I.U. Ranaweera, W.G.C.A. Sankalpa, G.G.S.C. Gunasekara, G.W.H.L. Rathnakumara and T.R.D.B. Thennakoon, Shunt Active Filter for Compensation of Current Harmonics Injected by Non-Linear Loads, Present around the world (PATW) 2019, The Institution of Engineering and Technology (IET) Young Professionals.<\/li>\n<\/ul>\n<\/div>[\/vc_column][vc_column][\/vc_column][\/vc_row]<\/p>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>[vc_row equal_height=&#8221;yes&#8221; content_placement=&#8221;top&#8221; type=&#8221;vc_default&#8221; css=&#8221;.vc_custom_1584702595643{padding-bottom: 20px !important;}&#8221;][vc_column width=&#8221;1\/2&#8243; css=&#8221;.vc_custom_1572893353553{padding-bottom: 50px !important;}&#8221;][vc_column_text css=&#8221;.vc_custom_1588769486994{margin-bottom: 30px !important;border-left-width: 3px !important;padding-left: 20px !important;border-left-color: rgba(0,0,0,0.1) !important;border-left-style: solid !important;}&#8221;]K.M.I.U. Ranaweera, W.G.C.A. Sankalpa, G.G.S.C. Gunasekara, G.W.H.L. Rathnakumara, T.R.D.B. Thennakoon[\/vc_column_text][vc_column_text]In this project, a shunt active filter to compensate current harmonics in the utility grid under balanced load condition was developed and tested via simulations&hellip;<\/p>\n","protected":false},"author":13,"featured_media":57758,"comment_status":"closed","ping_status":"closed","template":"","dt_portfolio_category":[106,102],"dt_portfolio_tags":[],"_links":{"self":[{"href":"https:\/\/www.eng.ruh.ac.lk\/dmena\/wp-json\/wp\/v2\/dt_portfolio\/57756"}],"collection":[{"href":"https:\/\/www.eng.ruh.ac.lk\/dmena\/wp-json\/wp\/v2\/dt_portfolio"}],"about":[{"href":"https:\/\/www.eng.ruh.ac.lk\/dmena\/wp-json\/wp\/v2\/types\/dt_portfolio"}],"author":[{"embeddable":true,"href":"https:\/\/www.eng.ruh.ac.lk\/dmena\/wp-json\/wp\/v2\/users\/13"}],"replies":[{"embeddable":true,"href":"https:\/\/www.eng.ruh.ac.lk\/dmena\/wp-json\/wp\/v2\/comments?post=57756"}],"version-history":[{"count":6,"href":"https:\/\/www.eng.ruh.ac.lk\/dmena\/wp-json\/wp\/v2\/dt_portfolio\/57756\/revisions"}],"predecessor-version":[{"id":57764,"href":"https:\/\/www.eng.ruh.ac.lk\/dmena\/wp-json\/wp\/v2\/dt_portfolio\/57756\/revisions\/57764"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.eng.ruh.ac.lk\/dmena\/wp-json\/wp\/v2\/media\/57758"}],"wp:attachment":[{"href":"https:\/\/www.eng.ruh.ac.lk\/dmena\/wp-json\/wp\/v2\/media?parent=57756"}],"wp:term":[{"taxonomy":"dt_portfolio_category","embeddable":true,"href":"https:\/\/www.eng.ruh.ac.lk\/dmena\/wp-json\/wp\/v2\/dt_portfolio_category?post=57756"},{"taxonomy":"dt_portfolio_tags","embeddable":true,"href":"https:\/\/www.eng.ruh.ac.lk\/dmena\/wp-json\/wp\/v2\/dt_portfolio_tags?post=57756"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}