<trans-title>Quantitative Analysis on the Constraint Relationship Between the Control Quality of Throttle Pressure and the Variation of Fuel Quantity

Haizhe LIU; Liang TIAN

doi:10.16516/j.gedi.issn2095-8676.2018.03.007

SOUTHERN ENERGY CONSTRUCTION > 2018 > 5(3): 48-55. > DOI: 10.16516/j.gedi.issn2095-8676.2018.03.007 CSTR: 32391.14.j.gedi.issn2095-8676.2018.03.007

Haizhe LIU, Liang TIAN. Quantitative Analysis on the Constraint Relationship Between the Control Quality of Throttle Pressure and the Variation of Fuel Quantity[J]. SOUTHERN ENERGY CONSTRUCTION, 2018, 5(3): 48-55. DOI: 10.16516/j.gedi.issn2095-8676.2018.03.007

Citation:

Quantitative Analysis on the Constraint Relationship Between the Control Quality of Throttle Pressure and the Variation of Fuel Quantity

Haizhe LIU¹,
Liang TIAN¹

School of Control and Computer Engineering, North China Electric Power University, Baoding 071000, China

More Information

Received Date: June 05, 2017
Revised Date: September 19, 2017

Abstract

Abstract

[Introduction] The large-scale grid connected of renewable energy represented by wind power results in frequent changes of generation load command in the thermal power unit. The debugging of coordinated control system parameters cannot satisfy the control quality of throttle pressure and the variation of the fuel quantity simultaneously.
[Method] Based on the simple first order inertial object, adding the integral, pure delay and non minimum phase characteristics in turn, the constraint relation between the adjustment time of the typical objects and the maximum output of the controller was summarized gradually.
[Result] Combined with the model of the boiler fuel quantity and the throttle pressure in the case of closed-loop control of the turbine-side in coordinated control system for thermal power unit, a formula is presented to describe the constraint relationship between the change of throttle pressure and fuel quantity under the disturbance of generation instruction.
[Conclusion] The simulation results and actual operation data verify the accuracy of the formula which can meet the practical requirements.
- thermal power unit,
- throttle pressure,
- fuel quantity,
- restraint,
- coordinated control system

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References (18)

References

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Liang TIAN

School of Control and Computer Engineering, North China Electric Power University, Baoding 071000, China

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Quantitative Analysis on the Constraint Relationship Between the Control Quality of Throttle Pressure and the Variation of Fuel Quantity