Information hidden in the characteristics and relationship data of a cascade hydropower stations can be extracted by data-mining approaches to be operation rules and optimization support information. In this paper, with Three-gorge and Gezhouba cascade hydropower stations as an example, two operation rules are proposed due to different operation efficiency of water turbines and tight water volu...

Optimal short-term hydrothermal generation cooperation (OSTHTGC) is used to determine the optimal operation strategy for cascaded hydropower plants and thermal plants. In this problem, equality constraints consisting of water time delay, reservoir volume, continuity water and power balance, as well as inequality constraints related to the limits of thermal and hydro generations are taken into a...

Real-time pricing (RTP) of electricity would improve allocative efficiency and limit wholesalers’ market power. Conventional wisdom claims that RTP provides additional environmental benefits. This paper argues that RTP will reduce the variance, both withinand across-days, in the quantity of electricity demanded. We estimate the short-run impacts of this reduction on SO2, NOx, and CO2 emissions....

With rising energy demand in Asia, the high potential for hydropower development and need low-carbon development, would seem to have a significant role South Asia’s future. However, extent of will depend on several risk factors, including cost alternative sources, environmental sustainability social issues equitable development. Using risk-analysis framework, it is concluded that future how wel...

Hydraulic turbines for energy recovery in wastewater treatment plants, with relatively large discharges values and small head jumps, are usually screw Archimedes or Kaplan types. In the specific case of a jump (about 3 m) underlying rectangular weir major Palermo (Italy) water plant, traditional solution is compared two other new proposals: Hydrostatic Pressure Machine (HPM) located at upstream...

Water distribution networks face several problems related to leakages, where the pressure control strategy is a common practice for water loss management. Small-scale hydropower schemes, where pumps as turbines replace pressure reducing valves, can be considered an interesting technical solution, which ensures both economic convenience and system flexibility. Due to the water networks’ variable...

Abstract This paper is concerned with the modeling of three-phase permanent magnet synchronous generator (PMSG) and its load in dq0 reference system. The was considered to be directly connected a balanced load. loads under consideration were R RLC type loads. connection can simulated using standard PMSG dq model Park transformations, but requires system as whole. LabVIEW simulations these model...