Modeling and implementation of hydro turbine power adaptive control based on gain scheduling technique

Ruzhekov, Georgi; Slavov, Tsonyo; Puleva, Teofana

doi:10.1109/isap.2011.6082205

Cited by 4 publications

(3 citation statements)

References 1 publication

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“…A SCADA control center performs centralized monitoring and control for field sites over long-distance communications networks, including monitoring alarms and processing status. The PLC type plant controller combined with PC based SCADA [10] systems are used for plant control and data acquisition.This makes the system economically viable and thus can be suitable for many small hydroelectric power plants [11] for generation, control and automation Based on information received from remote stations, automated or operator-driven supervisory commands can be pushed to remote station control devices, which are often referred to as field devices. …”

Section: Scada System For Hydropower Plantmentioning

confidence: 99%

Role of SCADA in Hydro Power Plant AUTOMATION

Kaur¹

2015

IJAREEIE

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ABSTRACT:Automation is the use of control systems, intelligent electronic devices, instruments and new communication technologies to enhance the quality of work, better monitoring and controlling of the system to reduce the human interface with system. Automation plays an increasingly important role in the world economy. Automation has had a notable impact on power sector beyond manufacturing industries also. Now a day's Power plant control systems have evolved from SCADA-centered platforms to communicate with industry standard hardware and software, and then to integrate power plant automation systems with almost unlimited connectivity. The system will embrace the latest information and communication technologies (ICT), and multiple communication channels (some traditional and some personal, such as instant messaging).Interoperation of various control system in power house and substation automation system from SCADA was a challenge in past decades, but with the development of IEC 60870 -5 -103/104 and IEC 61850 interoperation of various automation systems is possible.IEC 60870 standard is used for telecontrol in electrical power system such systems are used for controlling electrical transmission grids, power house control system like turbine controller, Protection system, Excitation System and other geographically widespread control system. This paper describes a SCADA System for hydro power plant automation in compliance with the various IEC standard and interfacing protocols to ensure interoperability among the various devices.

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Section: Scada System For Hydropower Plantmentioning

confidence: 99%

Role of SCADA in Hydro Power Plant AUTOMATION

Kaur¹

2015

IJAREEIE

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“…Paralelamente, o avanço que tem experimentado os processadores permite a proposta de no-vas e mais complexas estruturas de controle (Guo Lei, 2017), (Ruzhekov et al, 2011), (Hannett et al, 1994) que pelo custo computacional não podiam ser implementadas no passado.…”

Section: Introductionunclassified

Viabilidade da Estrutura LQR-2DOF na Regulação de Velocidade de uma Unidade de Geração Hidrelétrica

Espinoza¹,

Vargas

2020

Anais Do Congresso Brasileiro De Automática 2020

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A estabilidade dos sistemas de energia é de vital importância; nesse sentido, novas estruturas de controle vem sendo estudadas e implementadas para melhorar o desempenho das unidades que compõem um sistema interligado. Este trabalho propõe a estrutura de controle robusta LQR-2DOF como um regulador de velocidade para turbinas hidráulicas (ou controlador de frequência em geradores). Para implementar essa técnica, são feitas modificações na sua estrutura para que possa ser empregada como regulador, isto porque a estrutura original foi proposta para problemas de rastreio. O controlador é projetado e simulações são executadas para verificar uma possível melhoria na sua resposta e sua viabilidade de uso nos sistemas de energia quando comparado ao controle PID.

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“…GS is used for both active power and speed control of a hydroelectric unit with leaky guide vanes in Doan and Natarajan, 15 where the parameters of the controller are changed to control a secondary water input. In Ruzhekov et al, 16 GS is compared with the conventional PI controllers in active power control under different load conditions. The advantages of the adaptive approach are shown based on simulations on a nonlinear HEPP model.…”

Section: Introductionmentioning

confidence: 99%

Speed control of hydraulic turbines for grid synchronization using simple adaptive add-ons

Gezer

Taşcıoğlu

Çelebioğlu

2018

Measurement and Control

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Background: Parameters of the hydroelectric power plant controllers are typically tuned at the nominal operating conditions such as nominal head and single unit operation. Water level variations in reservoir and/or tailwater, and the presence of other active units sharing the penstock are common disturbances to the nominal assumption. Methods: This article proposes two adaptive add-ons, namely gain scheduling and model reference adaptive control, to the existing speed controllers to improve grid synchronization performance when the site conditions are not nominal. The add-ons were designed and tested on a validated dynamic model of a power plant unit by using a software-in-the-loop simulation setup. An off-season scenario is simulated, in which the original controller of the unit cannot bring the turbine to synchronize with the grid due to low gross head. Then, the add-ons were implemented on-site and experiments were performed under similar conditions. The parameter sets used in gain scheduling for different operation bands are determined off-line with the help of operational experience. The model reference adaptive control add-on requires a reference model and a learning rate. A description of the turbine speed-up profile at nominal operating conditions is sufficient to be used as the reference model. The proposed piecewise linear reference model favors stability over speed in settling to the nominal speed. Results: It is experimentally shown that the proposed add-ons compensate the negative effect of head loss in grid synchronization, and perform similar to the ideal performance at the nominal head. Conclusion: Both add-ons can be implemented on the available off-the-shelf speed governor controllers. They are suitable for use in all hydroelectric power plants, especially in unmanned ones, for automatic synchronization with less waste water.

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Modeling and implementation of hydro turbine power adaptive control based on gain scheduling technique

Cited by 4 publications

References 1 publication

Role of SCADA in Hydro Power Plant AUTOMATION

Role of SCADA in Hydro Power Plant AUTOMATION

Viabilidade da Estrutura LQR-2DOF na Regulação de Velocidade de uma Unidade de Geração Hidrelétrica

Speed control of hydraulic turbines for grid synchronization using simple adaptive add-ons

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