Synchronization-Based Guaranteed-Performance Formation Design for Swarm Systems

Dang, Hongtao; Du, Yang; Kong, Lingjiang; Xi, Jianxiang

doi:10.1155/2020/3076132

Cited by 2 publications

(1 citation statement)

References 33 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Ren and Wang [26] conducted research on adaptation for optimisation and control of complex renewable energy systems. Dang and Du [27] conducted a study on synchronisation-based guaranteed-performance formation design for swarm systems, and the results revealed that as a synchronisation-based guaranteed-performance formation is attained, the centre of forming the entire swarm system could become immobile. Zhang et al [28] carried out a study on an innovative aerial manipulator with tandem ducted fans: modeling, control, and simulation and they observed that a projected composite adaptive controller could enable an aerial vehicle to attain good performance in manipulator motion.…”

Section: Introductionmentioning

confidence: 99%

Computational Analysis on Numerical Simulation of Internal Flow Physics for Pump as Turbine in Renewable Small Hydro Energy Generation

Adu

Acheaw

et al. 2020

Complexity

View full text Add to dashboard Cite

Energy contributes significantly in almost all aspects of human life as well as economic activities and plays a crucial role in the infrastructural development of a county to alleviate poverty. Generating energy from a renewable source such as small hydropower through the application of pump operating as a turbine mode called Pump as Turbine is one of the best alternatives to provide clean and inexpensive energy. Using Pump as Turbine helps in generating reasonably priced hydroelectric power for communities in underdeveloped counties. This study investigates the effects of internal flow behaviour and performance of Pump as Turbine under different rotational speed and flow rate. The rotational speed is an essential physical parameter as it affects the Pump as Turbine operation. A model-specific speed centrifugal pump model with head 32 (m), flow rate of 12.5 (m3/h) and the rotational speed of 2900 rpm, has been selected for the study. Numerical simulations have been conducted using the k-ω turbulence model to solve three-dimensional (3D) equations. The pump mode experimental data were used to confirm the results for better analysis. The results predicted that vortex and turbulent kinetic energy increase per rotational speed increase. Also, at the higher rotational speed, very high recirculation of flow is detected at the blade suction chamber, although the pressure side has a smooth flow. This study provides beneficial information which will serve as a reference to help improve PAT performance along with selecting PAT for a small hydropower site. Future works will consider the impact of blade thickness and cavitation in Pump as Turbine.

show abstract

Section: Introductionmentioning

confidence: 99%