{"id":35170,"date":"2019-05-07T08:13:43","date_gmt":"2019-05-07T08:13:43","guid":{"rendered":"\/forum\/forums\/topic\/pid-temperature-control\/"},"modified":"2019-05-07T08:13:43","modified_gmt":"2019-05-07T08:13:43","slug":"pid-temperature-control","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/pid-temperature-control\/","title":{"rendered":"PID Temperature Control"},"content":{"rendered":"<p>Dear All,<\/p>\n<p><\/p>\n<p>I have added an ACT extension (PID Thermostat) in ANSYS Mechanical to control the temperature of my model. I have some question about this extension.<\/p>\n<p><\/p>\n<p>1) What does it mean by the Setpoint Type as-&#8220;Use Model Entity as Setpoint&#8221; and Setpoint Offset.<\/p>\n<p><\/p>\n<p>2) What would be the initial guess for Kp, Ki, Kd? I started with Kp, setting others are zero and try to tune the value, but the problem is, for one guess it takes half an hour to run the case, That seems inefficient way to tune the PID value. I am new in PID control.<\/p>\n<p><\/p>\n<p>3) I also don&#8217;t know the logic the program uses and unable to write APDL scripting for PID control.<\/p>\n<p><\/p>\n<p><img decoding=\"async\" src=\"https:\/\/us.v-cdn.net\/6032193\/uploads\/attachments\/7976a64c-61b7-440a-baeb-a89e0178f730\/004fc192-6304-45d3-b79a-aa460082df61_capture.jpg?width=690&amp;upscale=false\" alt=\"\"><\/p>\n<p><\/p>\n<p>&nbsp;<\/p>\n<p><\/p>\n<p>If it&#8217;s possible, could you please tell me how to tune the PID value in an efficient way!<\/p>\n<p><\/p>\n<p>Thank you!<\/p>\n","protected":false},"template":"","class_list":["post-35170","topic","type-topic","status-closed","hentry"],"aioseo_notices":[],"acf":[],"custom_fields":[{"0":{"_bbp_old_topic_id":["7342"],"_bbp_old_topic_author_name_id":["Anonymous"],"_bbp_old_is_topic_anonymous_id":["false"],"_bbp_old_closed_status_id":["publish"],"_bbp_author_ip":[null],"_bbp_old_sticky_status_id":["normal"],"_bbp_likes_count":["0","0"],"_btv_view_count":["1926"],"_bbp_topic_status":["unanswered"],"_bbp_status":["publish"],"_bbp_topic_id":["35170"],"_bbp_forum_id":["27791"],"_bbp_engagement":["199","240","156292"],"_bbp_voice_count":["3"],"_bbp_reply_count":["4"],"_bbp_last_reply_id":["84972"],"_bbp_last_active_id":["84972"],"_bbp_last_active_time":["2019-05-11 04:53:30"]},"test":"suraj9735"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/35170","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\/35170\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=35170"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}