Variable Structure and Time-Varying Parameter Control for Hydroelectric Generating Unit

Luqing,; Shou-Ping,; Haibo, Haibo; Малик,; Hope,

doi:10.1109/mper.1989.4310941

Cited by 3 publications

(3 citation statements)

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“…Moreover, there are existing models of linear and nonlinear hydro-turbine set with non-elastic and elastic water column effects. Non-elastic water column have been largely handled by previous works including Malik et al [8], Ramey et al [9], Bhaskar [10] and Luqing et al [11].…”

Section: Literature Reviewmentioning

confidence: 99%

Review of Hydropower Plant Models

Acakpovi¹,

Hagan²,

Fifatin³

2014

IJCA

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This paper consists of an extensive review on the modeling of hydropower plant. First a background was provided on all components needed to develop a full and comprehensive model on hydropower plant including penstock, governor, turbine and generator. The review of existing models was started with simple analytical models that were followed by system modelling. The complexity of modeling the dynamic aspect of water flowing through the penstock as well as the opening and closing of wicket gate have led to the development of complex control systems to model hydropower plant. Those complex models were rather represented as systems instead of been analytical. They are mostly equipped with numerous feedback as well as modern control systems such as fuzzy logic and PID control logic that improves their performances. However, these models are most often constructed and simulated with software of which Matlab is a fundamental one. In line with this, the paper investigated a simulation of hydropower plant including a model of hydraulic turbine, governor and synchronous machine, all simulated under Matlab software. A three phase to ground fault was introduced in the model at t=0.2s and remove after t=0.4s and this shows that the generated voltage quickly regained its stability due to the high excitation voltage that was maintained by the PID control system incorporated in the hydraulic turbine model. The speed of the motor also regained stability but this case was slower than the voltage one. In all, simulation results showed a perfect generation of energy from hydropower plant that was robust enough to resist faults.

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Section: Literature Reviewmentioning

confidence: 99%

Review of Hydropower Plant Models

Acakpovi¹,

Hagan²,

Fifatin³

2014

IJCA

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“…The social and financial benefits obtained from this event are innumerable. 6 FURTHER DEVELOPMENT Based on the theoretical and practical experience gained from these governors, a joint project t o develop a more effective pP-based governor has been started between The University of Calgary and Huazhong University of Science and Technology supported by The Natural Sciences and Engineering Research Council of Canada(NSERC) and The Natural Sciences Foundation of China(NSFC). The project includes theoretical reszxch to develop a new control strategy, a multiprocessorbased implementation of the new control strategy and field tests.…”

Section: -4 B E N E F I T T O the Networkmentioning

confidence: 99%

Field tests and operation of a duplicate multiprocessor-based governor for water turbine and its further development

Luqing¹,

Shouping²,

Li³

et al. 1990

IEEE Trans. On energy Conversion

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A duplicate microprocessor-based governor(DpPG) contains 2 redundant processing modules. A research prototype has been transferred to an industrial product. This paper gives the details of the hardware and software and the field test results.The paper also gives an evaluation of the financial benefits with examples from the 11 DpPGs operating at seven different hydro-power plants in China. A proposal is presented for a new DpPG with a control strategy based on intelligent self-improvement.

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“…This approach is based on assuming an inelastic penstock wall and incompressible water flow. Rigid water models are the most used in specialized literature in cases in which water hammer effect is neglected, as seen in (Ramey & Skooglund, 1970), (Luqing, et al, 1989), (Herron & Wozniak, 1991), (Malik , et al, 1991), (Kundur, 1994) or (Jones & Mansoor, 2004) among others.…”

Section: I611 Rigid Water Column Modelmentioning

confidence: 99%

Frequency control of hybrid wind-hydro power plants with long conduits in isolated power systems

Lucas¹

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The increase in the penetration of renewable energy is a reality in the vast majority of countries, both in Europe and in the rest of the world. This increase is not only occurring in continental power systems, but also on small islands that have high wind and/or solar potential. However, a high renewable energy penetration may compromise the stability of power systems, especially in the case of islands, which constitute isolated power systems. This is due to the inherent characteristics of renewable resources (uncertainty, intermittency and independence between availability and demand). These drawbacks are amplified by the power system inertia reduction caused by the fact that renewable generators are normally decoupled from the grid through a power electronics interface that do not add inertia to the system. It is well known that the long-term variability of renewable energy is well managed by pumped storage hydropower plants (PSHP). Thus, PSHP play an important role in the renewable resources integration,

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Variable Structure and Time-Varying Parameter Control for Hydroelectric Generating Unit

Cited by 3 publications

References 0 publications

Review of Hydropower Plant Models

Review of Hydropower Plant Models

Field tests and operation of a duplicate multiprocessor-based governor for water turbine and its further development

Frequency control of hybrid wind-hydro power plants with long conduits in isolated power systems

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