Innovative Concepts Applied to Recent Small Hydropower Plants

Dadu, Vergila; Dadu, Adriana; Frunza, Daniel; Catarig, Gheorghe; Popa, Florica; Popa, Bogdan

doi:10.1016/j.egypro.2017.03.1106

Cited by 6 publications

(4 citation statements)

References 9 publications

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“… some studies can go, for example, from the determination of the impact of environmental flow on some small hydropower plants (SHPPs) production [8], to the impact of climate change and distributions of precipitation on hydropower production for a large country [9];  use of dedicated software for assess the possibility to model the attachment of a HPP to existing dams [10], or presenting innovative concepts applied to recent hydropower projects [11];  analysis of past energy production for determination of hydropower share in total energy generation [12], or of different statistical parameters [13,14], or prediction of share of hydropower in total energy generation [15];  assessment of hydropower potential [16], or of pumped storage plants potential at a country level [17], or of hidden hydro related to empowering non-powered dams at a country level [18]. Related to optimization of the operation of HPDs, complex problems where the as the optimization of the electricity production of a HPP powered from a multiple use reservoir [19], or estimation of performance of a complex HPD with more reservoirs and associated HPPs and a pumped storage plant (PSP) [20] or the optimization of such complex HPDs [21], can be successfully addressed, where classical operational research methods can no longer face the complexity of the problem to be solved.…”

Section: Introductionmentioning

confidence: 99%

Optimization of the operation of Dokan hydropower development using Cuckoo Search Algorithm

Ahmad-Rashid

2022

IOP Conf. Ser.: Mater. Sci. Eng.

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In this paper one of the recently developed metaheuristic algorithms, the Cuckoo Search algorithm is used for the optimization of the operation of a large hydropower plant in Kurdistan, Iraq. The optimization problem is to realize an annual planned energy generation with monthly imposed fractions. The obtained results are excellent, nevertheless, there are some limitations of the algorithm determined by the initial level into the reservoir and a certain correlation between the type of the year, the starting level and the planned energy to be realized.

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Section: Introductionmentioning

confidence: 99%

Optimization of the operation of Dokan hydropower development using Cuckoo Search Algorithm

Ahmad-Rashid

2022

IOP Conf. Ser.: Mater. Sci. Eng.

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“…When small hydropower station discharges floods, the tail water of the station has a huge fluctuation. Then, the working head of the turbine must be directly affected by the tail water fluctuation [12]. Therefore, in order to achieve a stable and quick start-up process under fluctuated tail water, there is an urgent need to study the impact of the tail water fluctuation caused by flood discharge on the start-up of small hydropower stations.…”

Section: Introductionmentioning

confidence: 99%

Impact of Tail Water Fluctuation on Turbine Start-Up and Optimized Regulation

Chen

Wang

et al. 2019

Energies

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Small hydropower plants are usually run-of-river with a poor adjustment capacity, and, therefore, large tail water fluctuation may be induced during flood discharge. Meanwhile, the turbine units need to be quickly started-up due to the regulation requirements of the power grid. However, failures of the start-up and grid connection are often encountered because of severe tail water fluctuation. In order to achieve the rapid and stable start-up under tail water fluctuations and to reduce the negative effect of start-up on turbine runner blades, the fluctuation law of the tail water from flood discharge model test is introduced as the boundary condition. A multi-objective comprehensive (MOC) index is proposed to optimize the parameters of the governor. Then the impacts of the tail water amplitude and frequency on the start-up are simulated and analyzed. Moreover, the start-up characteristics under the Integral Time Absolute Error (ITAE) index and the MOC index are compared through particle swarm optimization (PSO). The results show that both indices can ensure the rapidity of start-up under tail water fluctuation, whereas the MOC index can achieve a more stable start-up process. Therefore, the MOC index has a better stability and a less negative effect on the turbine runner blades.

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“…In 2017, 770 installations generating hydropower, with a total rated power output of 989.447 MW, were registered and covered by the Energy Regulatory Office concession (status as of 31 December 2017). Additionally, technological and innovative development in this area is supported in various parts of the world [31], which may translate into an increase in regional growth and better guarantees of energy supply. Currently, the location of small hydropower plants is based on searching for existing, often damaged, hydrotechnical facilities.…”

Section: Introductionmentioning

confidence: 99%

Operational Evaluation of a Small Hydropower Plant in the Context of Sustainable Development

Walczak

2018

Water

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Proper design of hydrotechnical structures should meet the basic principles of sustainable development, i.e., the investment should be designed and made in technical terms, in accordance with the applicable standards and regulations, provide certain economic benefits and guarantee the absence of environmental hazards. The article examines the work of a Small Hydropower Plant (SHP) in Jaracz in technical and hydraulic terms. It also provides the analysis of the effect of changes in parameters such as water head, flow rate velocity, and shape of trash rack bars on expected SHP profits. The assessment of hydraulic performance consisted of investigating the impact of reduced flow rate and water head on power output and energy production. The analyses were carried out for the Francis turbine installed in the facility. Since the loss of channel capacity is shaped by plant debris accumulated on trash racks, the hydraulic performance assessment was extended to include the analysis of the species and weight composition of such accumulation on fine trash racks located in the inlet channel. Field research involved collecting organic material from the growing season (spring, summer) and post-growing season (autumn). Technical conditions were developed on the basis of the current technical condition of the inlet channel; there were also made simulations of its deteriorating state, as well as its impact on the received energy and economic benefits.

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Innovative Concepts Applied to Recent Small Hydropower Plants

Cited by 6 publications

References 9 publications

Optimization of the operation of Dokan hydropower development using Cuckoo Search Algorithm

Optimization of the operation of Dokan hydropower development using Cuckoo Search Algorithm

Impact of Tail Water Fluctuation on Turbine Start-Up and Optimized Regulation

Operational Evaluation of a Small Hydropower Plant in the Context of Sustainable Development

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