Practical hydraulic turbine model

Izena, Atsushi; Kihara, Hideyuki; Shimojo, T.; Hirayama, K.; Furukawa, Nobuhiko; Kageyama, Takahisa; Goto, Takaaki; Okamura, Chosei

doi:10.1109/pes.2006.1709306

Cited by 17 publications

(11 citation statements)

References 4 publications

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“…In the simulation of power system, the mathematical model of hydraulic turbine and governing system is often simplified to improve the calculation speed [3,4], such as the use of linear model. The calculation error caused by the simplified model of the hydraulic system can be accepted for studying some problems, but not for the research for the long-term dynamic stability simulation of hydropower system, the stable simulation of fluctuation of surge shaft, the startup of turbine generator or sudden load rejection, and hydraulic-machine-electric coupling process simulation, and control and regulation problem into saturation and other nonlinear state; because of the incomplete data and the influence of the nonlinear conditions, the accuracy and reliability of the calculation are seriously affected, and it will even produce the unreasonable conclusions.…”

Section: Introductionmentioning

confidence: 99%

Dynamics Analysis for Hydroturbine Regulating System Based on Matrix Model

Wei¹,

Wang²,

Cheng³

et al. 2017

Mathematical Problems in Engineering

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The hydraulic turbine model is the key factor which affects the analysis precision of the hydraulic turbine governing system. This paper discusses the basic principle of the hydraulic turbine matrix model and gives two methods to realize. Using the characteristic matrix to describe unit flow and torque and their relationship with the opening and unit speed, it can accurately represent the nonlinear characteristics of the turbine, effectively improve the convergence of simulation process, and meet the needs of high precision real-time simulation of power system. Through the simulation of a number of power stations, it indicates that, by analyzing the dynamic process of the hydraulic turbine regulating with 5-order matrix model, the calculation results and field test data will have good consistency, and it can better meet the needs of power system dynamic simulation.

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Section: Introductionmentioning

confidence: 99%

Dynamics Analysis for Hydroturbine Regulating System Based on Matrix Model

Wei¹,

Wang²,

Cheng³

et al. 2017

Mathematical Problems in Engineering

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“…A modification on the Kundur's turbine model was made in Ref. [8], where the novel model is obtained through the frequency response tests. Elastic and non-elastic models [9,10] for conduit system have been investigated in the long pipeline system and short pipeline system, respectively.…”

Section: Introductionmentioning

confidence: 99%

Design of fuzzy sliding mode controller for hydraulic turbine regulating system via input state feedback linearization method

Yuan

Chen

Yuan

et al. 2015

Energy

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“…In the present work, we recall the idea of using linear models with time varying parameters aiming to adequately representing several operating points [8,9]. Also, two contributions are described.…”

Section: Introductionmentioning

confidence: 99%

Hybrid Model Predictive Control as a LFC solution in Hydropower Plants

Donaisky

Oliveira

Santos

et al. 2015

MATEC Web of Conferences

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Abstract. For Electric Power System safety and stable operation, planning and analysis by using simulation environments are necessary. An important point for frequency stability analysis is, on one hand, an adequate representation of Load-Frequency Control (LFC) loops and, on the other hand, the design of advanced control strategies to deal with the power system dynamic complexity. Therefore, in this paper we propose to represent the group turbine/penstock, found in hydropower plants, in a Piecewise Affine (PWA) modelling structure. Based on such modelling, we also propose the use of a Hybrid Model Predictive algorithm to be use as a control law in LFC loops. Among the advantages of this PWA representation is the use of this model in the controller algorithm, thereby improving the Load-Frequency Control performance. Simulation results, on a 200 MW hydropower plant compares the performance of predictive control strategy presented with the classical PID control strategy in an isolated condition.

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Practical hydraulic turbine model

Cited by 17 publications

References 4 publications

Dynamics Analysis for Hydroturbine Regulating System Based on Matrix Model

Dynamics Analysis for Hydroturbine Regulating System Based on Matrix Model

Design of fuzzy sliding mode controller for hydraulic turbine regulating system via input state feedback linearization method

Hybrid Model Predictive Control as a LFC solution in Hydropower Plants

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