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مشکل در PID Control

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Iman.fareghi

(@iman-fareghi)

Active Member

عضو شده: 7 سال قبل

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۰۱/۰۳/۱۳۹۸ ۱۱:۳۲ ق.ظ

درود دوستان عزیز
من یه پروسه کنترل دما توسط pid control دارم mv هم اینورتر هست، میخوام وقتی دما بالا رفت فرکانس موتور زیاد و وقتی دما پایین اومد فرکانس هم کم بشه تا به مقدار set point برسه.

مشکل اینه که در بلوک pid control کتابخانه AP در PCS7 وقتی pv کم میشه فرمان تولید شده برای mv زیاد میشه که با برنامه رابطه معکوس داره.
چطور میتونم این مشکل رو برطرف کنم؟

This topic was modified 56 سال قبل by Iman.fareghi

This topic was modified 56 سال قبل by mohamad reza maher

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Elyghanbari

(@elyghanbari)

New Member

عضو شده: 7 سال قبل

ارسال‌ها: 2

۰۲/۰۳/۱۳۹۸ ۷:۵۹ ق.ظ

با سلام با تغییر علامت KP مشکل رفع می شود

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Iman.fareghi

(@iman-fareghi)

Active Member

عضو شده: 7 سال قبل

ارسال‌ها: 12

۰۲/۰۳/۱۳۹۸ ۱۲:۲۴ ب.ظ

مهندس Gain رو منفی یک قرار دادم ولی پاسخ بلاک برای خروجی MV صفر بود

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Iman.fareghi

(@iman-fareghi)

Active Member

عضو شده: 7 سال قبل

ارسال‌ها: 12

۰۷/۰۳/۱۳۹۸ ۷:۳۹ ب.ظ

ارسال‌شده توسط: Iman.fareghi

مهندس Gain رو منفی یک قرار دادم ولی پاسخ بلاک برای خروجی MV صفر بود

از دوستان عزیز کسی هست راهنمایی کنه ؟؟

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Loghmani

(@loghmani)

Eminent Member

عضو شده: 3 سال قبل

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۱۱/۱۲/۱۴۰۱ ۱۰:۰۵ ق.ظ

@iman-fareghi

خروجی MV بلوک را قاعدتاً به چنل درایور PCS7AnOu میدیم . برای رفع مشکل فوق در پایه Scale مقادیر Hi , Lo را برعکس بدید مثلاً Hi=0 و Lo=100

Rahaei پسندید

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Rahaei

(@rahaei)

Trusted Member

عضو شده: 7 سال قبل

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۱۱/۱۲/۱۴۰۱ ۱۰:۲۷ ق.ظ

@loghmani اینی که شما گفتی یه مشکل داره زمانی که روی حالت منوال میزاره فرمان عکس میفرسته علاوه بر صحبت شما باید گفت اگر منوال بود مستقیم و اگر auto بود برعکس

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amir omidi

(@amiromidi)

Trusted Member

عضو شده: 7 سال قبل

ارسال‌ها: 56

۱۱/۱۲/۱۴۰۱ ۱۲:۲۲ ب.ظ

درود بر شما

پایه negGain در ورودی بلاکPID رو 1 کنید و پایه Gain را عددی مثبت بگذارید. قائدتاً بایستی مشکل حل شود.

موفق باشید

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Loghmani

(@loghmani)

Eminent Member

عضو شده: 3 سال قبل

ارسال‌ها: 45

۱۴/۱۲/۱۴۰۱ ۵:۰۵ ب.ظ

@rahaei

بله کاملاً صحبت شما درسته

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