IS210AEPSG1AFC pressure control adopts single loop control mode
Brand ABB color Standard Application Industrial height 477mm rated current 588mA
Protection Level IP45 Suitable for motor power 161KW Application Site Power Industry BOM Number GJR2391500R1220 Power industry HIEE401782R0001 Part number IS210AEPSG1AFC
Applicable pipe 2 Whether imported is weighing 3.65 kg can be sold nationwide
IS210AEPSG1AFC pressure control adopts single loop control mode
IS210AEPSG1AFC pressure control adopts single-loop control mode combustion control system
The control of the combustion part is the core of the whole equipment control. There are many factors that affect the change of the entire equipment, and the whole process is a large lag adjustment, the use of traditional PID, cascade control and other effects are not very ideal, there will be overregulation, large fluctuations. According to the field analysis, we adopt the combined control of main steam flow and pressure to realize the main and auxiliary control of the whole combustion system.
The main control strategy principle of IS210AEPSG1AFC is: We need to set a target flow control value. The calculation of the target flow rate is based on the current flow rate, through flow correction of the rate of change of the current pressure, that is, when the pressure changes, the rate of change is positive (last detected value – current detected value), and at the same time, the gain is amplified. After the calculated value is added with the current flow, the self-optimizing equilibrium state of the control center point is carried out. According to the actual condition of the whole process, the central quantity value of the required fuel is determined, and the total value of the required blast is determined according to the ratio value of air coal. According to the design of the distribution ratio of the first and second air calculation, adjust the size of the blast volume (primary air). This is the main line to ensure the stable operation of the entire system.
IS210AEPSG1AFC adopts the principle of correcting the central value of the main line in fuel supply and air volume supply for pressure regulation. The main steam pressure, as the modified cascade setting of the coal feed, is controlled by the main cascade loop of the furnace temperature to effectively eliminate the operating fluctuation caused by the change of pressure and the change of medium. At the same time, the total air volume is controlled according to the same proportional range.
In order to ensure the best combustion effect, the method of adjusting the secondary air according to the oxygen content of the exhaust smoke is adopted, so that the combustion is always in a more economical state.
The pressure reduction control is also single-loop regulation, and the principle block diagram is the same as the temperature reduction.
IS210AEPSG1AFC pressure control adopts single loop control mode
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