Optimal production planning of a power plant

IET Control Theory &Amp; Applications

2010

This study addresses the problem of an optimal actuator selection when economic value is considered. The objective is to minimise the economical cost of operating a given plant. The problem has been formulated using mathematic notions from economics. Functionals describing the business objectives of operating a power plant has been established. The selection of actuator configuration has been limited to the fuel system which in the considered plant consists of three different fuels -coal, gas and oil. The changes over 24 h of operation is established and a strategy for using a plant utilising the three fuels is developed which will yield a greater profit than a coal fired plant.

Section: Including Plant Dynamicsmentioning

confidence: 99%

Optimal usage of coal, gas and oil in a power plant

IET Control Theory &Amp; Applications

2010

“…See [10] for further comments on the above quantities. The objective of this work is to derive a plan for optimal usage of the three fuels described above during 24 hours of operation.…”

Section: Problem Formulationmentioning

confidence: 99%

“…That is, current and historic prices of electricity, which is available online has been used as price of the efficiency measure. The instantaneous profit flow is formulated as in [10], i.e.,…”

Section: Problem Formulationmentioning

confidence: 99%

“…The problem stated above has been discussed in [14], [12], [13], and [10]. In particular, the formulation in [10] which includes plant dynamics gives the basis of this work.…”

Section: Introductionmentioning

confidence: 99%

“…In particular, the formulation in [10] which includes plant dynamics gives the basis of this work. In the previous works, a function for the instantaneous profit flow has been determined, which includes time-varying measures of business objectives and time varying price data obtained from Nord Pool 1 .…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Profit Maximization of a Power Plant

European Journal of Control

et al. 2012

Self Cite

Abstract-This paper addresses the problem of profit maximization of a power plant by utilizing three different fuel systems in an optimal manner. Pontryagin's maximum principle is used to derive properties of the optimal control strategy. These properties give rise to a switching function. Subsequently, certain heuristics are introduced and used in combination with discrete optimization to obtain an initial trajectory of the switching function. An iterative procedure is proposed, which uses the initial trajectory for the computation of the optimal control strategy. The control strategy derived is a combination of a state feedback and time-varying feedforward term. Its performance is tested against input noise.

Performability measure for a power plant

2010 IEEE International Conference on Control Applications

2010

Self Cite

This paper considers the problem of economical optimization of the power production in a power plant capable of utilizing three different fuel systems. The considered fuel systems are coal, gas, and oil; each has certain advantages and disadvantages e.g. gas is easier to control than coal but it is more expensive. A profit function is stated and an analysis of the optimal fuel configuration is performed based on the Hamiltonian from the maximum principle. The analysis leads to the introduction of a performability measure, which, when the value is above a confidence threshold, indicates that a change of fuel system usage is beneficial. That is, the performability measure determines when an increase of performance is possible.