{"id":307586,"date":"2023-09-20T09:47:41","date_gmt":"2023-09-20T09:47:41","guid":{"rendered":"\/forum\/forums\/topic\/calculating-the-output-power-from-a-coil-placed-closer-to-a-conductor\/"},"modified":"2023-09-20T09:47:41","modified_gmt":"2023-09-20T09:47:41","slug":"calculating-the-output-power-from-a-coil-placed-closer-to-a-conductor","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/calculating-the-output-power-from-a-coil-placed-closer-to-a-conductor\/","title":{"rendered":"Calculating the output power from a coil placed closer to a conductor"},"content":{"rendered":"<p>The following simulation was modelled where a copper coil wound around an iron core is kept closer to a current-carrying conductor. The current carrying conductor is a portion of an infinite long conductor. 300A current was assigned to both the ends of the conductor.<\/p>\n<p><img decoding=\"async\" src=\"\/forum\/wp-content\/uploads\/sites\/2\/2023\/09\/20-09-2023-1695202495-mceclip0.png\"><\/p>\n<p>Current in the conductor is assigned as below<\/p>\n<p><img decoding=\"async\" src=\"\/forum\/wp-content\/uploads\/sites\/2\/2023\/09\/20-09-2023-1695202535-mceclip1.png\">&nbsp;<\/p>\n<p>The coil terminal direction is assigned as below<\/p>\n<p><img decoding=\"async\" src=\"\/forum\/wp-content\/uploads\/sites\/2\/2023\/09\/20-09-2023-1695202607-mceclip2.png\"><\/p>\n<p>I would like to do several parametric sweeps by changing the number of coil turns, diameter of the coil, length of the coil etc. and record the induced voltage (open circuit) and then output power of the assembly. Hence, I assigned a current type excitation to the winding, and set current to 0. Then when I perform the analyses, the induced voltage is negative. Here are my questions,<\/p>\n<ol>\n<li>According to lenz&#8217;s law the induced voltage should oppose the magnetic flux created by the conductor which penetrate the core. But when the induced voltage is negative in this scenario.<\/li>\n<li>I tried using an external circuit to measure the voltage and current by attaching a resistor to the output of the coil. But when I do parametric sweeps, the coil resistance and inductance change. Is there any way to assign the values obtained from the matrix to resistors in the external circuit?&nbsp;<\/li>\n<\/ol>\n<p>The analyses were done in eddy current mode. Any help is highly appreciated.&nbsp;<\/p>\n","protected":false},"template":"","class_list":["post-307586","topic","type-topic","status-closed","hentry","topic-tag-AnsysMaxwellelectronics-1","topic-tag-energy-1","topic-tag-external-circuit","topic-tag-induced-current-2","topic-tag-InducedVoltage-1","topic-tag-resistance"],"aioseo_notices":[],"acf":[],"custom_fields":[{"0":{"_bbp_subscription":["292025","13923"],"_bbp_author_ip":["23.206.193.59"]," _bbp_last_reply_id":["0"]," _bbp_likes_count":["0"],"_btv_view_count":["497"],"_bbp_topic_status":["unanswered"],"_bbp_status":["publish"],"_bbp_topic_id":["307586"],"_bbp_forum_id":["27793"],"_bbp_engagement":["13923","292025"],"_bbp_voice_count":["2"],"_bbp_reply_count":["2"],"_bbp_last_reply_id":["308020"],"_bbp_last_active_id":["308020"],"_bbp_last_active_time":["2023-09-22 06:56:39"]},"test":"22117254rconnect-polyu-hk"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/307586","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics"}],"about":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/types\/topic"}],"version-history":[{"count":0,"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/307586\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=307586"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}