KK67Y-YYYY-050
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鑱�(li谩n)绯讳汉锛氶劖闃挎竻
鎵� 姗�(j墨)锛�18106937709锛堝井淇″悓铏�(h脿o)锛�
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2 銆侀€氬父鐨勬苯婧帶鍒剁郴绲�(t菕ng)
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3 銆佽嚜鎶楁摼鎺у埗鍣ㄤ粙绱�
鑷姉鎿炬帶鍒跺櫒鐨勭祼(ji茅)妲�(g貌u) (Auto-Disturbances-Rejection Controller- ADRC)
鑷姉鎿炬帶鍒跺櫒 (ADRC) 鍩烘湰绲�(ji茅)妲�(g貌u)鏄敱濡備笅涓夌ó鍔熻兘绲勫悎鑰屾垚 :
鐢ㄤ竴鍊�(g猫)璺熻工寰垎鍣� (TD) 渚�(l谩i)瀹夋帓閬庢浮閬庣▼骞舵彁鍙栧叾寰垎淇¤櫉(h脿o)锛�
鐢ㄦ摯(ku貌)寮电媭鎱�(t脿i)瑙€娓�(c猫)鍣� (ESO) 渚�(l谩i)浼拌▓(j矛)灏�(du矛)璞＄殑鐙€鎱�(t脿i)璁婇噺鍜屾湭鐭ユ摼鍕�(d貌ng)鐨勫(sh铆)鏅�(sh铆)浣滅敤閲�锛�
瀹夋帓鐨勯亷娓￠亷绋嬭垏灏�(du矛)璞＄媭鎱�(t脿i)浼拌▓(j矛)閲忎箣闁撹宸殑閬╃暥(d膩ng)闈炵窔鎬х祫鍚堝拰鏈煡鎿惧嫊(d貌ng)浼拌▓(j矛)閲忕殑瑁�(b菙)鍎熶締(l谩i)鐢熸垚鎺у埗淇¤櫉(h脿o)銆�
The disturbance response curves of 1 and 2 are similar because they occur simultaneously along the whole length direction of the superheater, and the response has the characteristics of self balance, and the inertia and delay are relatively small.
For the third disturbance, the control system structure is simple and easy to realize. At present, most of the water spraying amount is used as the regulating quantity, so the water spraying quantity disturbance is the basic disturbance. Superheater is an b with distributed beters. Steam and bl tube wall in the tube can be regarded as a multi volume b composed of infinite single volume bs in series. Therefore, the response of superheater outlet temperature to water spray disturbance has a great delay. The farther the desuperheater is from the superheater outlet, the greater the delay is.
2. Common steam temperature control system
Generally, two bs are used to control the steam temperature system, i.e. double signal steam temperature control system with leading differential signal and steam temperature cascade control system. In addition, phase compensation loop or feed-forward control loop can be added to improve the quality of the control system. In engineering application, in order to overcome the shortcomings of conventional control strategy, according to the characteristics of the b, a new control b, active disturbance rejection control b, is selected.
3. Introduction of ADRC
Structure of auto disturbances rejection controller (ADRC)
The basic structure of active disturbance rejection controller (ADRC) is composed of the following three functions:
A tracking differentiator (TD) is used to arrange the transition process and extract the differential signal;
Extended state observer (ESO) is used to estimate the real-time b of state variables and unknown disturbances;
The appropriate nonlinear combination of the errors between the scheduled transition process and the plant state estimator and the compensation of the unknown disturbance estimator are used to generate the control signal.
KSD1-08
KSD1-08
1756-N2
1756-N2
1756-N2
1756-N2
1756-N2
1756-OB8
1756-PA75R
1756-PA75R
1756-PA75R
1756-TBCH
1756-TBCH
1756-TBCH
1756-TBCH
1756-TBCH
1756-TBNH
1756-TBNH
1756-TBNH
1756-TBNH
1756-TBNH
1756-TBNH
1756-TBNH
KK67Y-YYYY-050
KK67Y-YYYY-050
