Abstract

A stepwise operating parallel-type hydro power generation system having a fixed flow path includes a parallel pipe, a first power generation facility, a second power facility generation facility, first and second flow regulators, and a controller. The parallel pipe includes an inlet pipe, an outlet pipe, and a first straight pipe and a second straight pipe. The first and second straight pipes connected between the inlet pipe and the outlet pipe. Each of the first and second power generation facilities includes a water turbine rotating with the water introduced thereinto and a power generator operating according to the rotation of the water turbine. The controller is configured to open and close either or both of the first and second flow rate regulators at the same time.

IPC Classes  ?

• F03B 15/12 - Regulating, i.e. acting automatically by speed, e.g. by measuring electric frequency or liquid flow with retroactive action
• F03B 15/18 - Regulating, i.e. acting automatically for safety purposes, e.g. preventing overspeed
• H02P 9/04 - Control effected upon non-electric prime mover and dependent upon electric output value of the generator
• H02P 9/10 - Control effected upon generator excitation circuit to reduce harmful effects of overloads or transients, e.g. sudden application of load, sudden removal of load, sudden change of load
• F03B 3/18 - Stator bladesGuide conduits or vanes, e.g. adjustable
• H02P 101/10 - Special adaptation of control arrangements for generators for water-driven turbines

Abstract

The present invention relates to a parallel small-scale hydroelectric power generation apparatus which has a fixed passage and is operated in stages, wherein the small-scale hydroelectric power generation apparatus is installed in a pipeline of a water treatment facility, a small river, or the like, and supplies electrical power by producing electrical power through a power generation action in which kinetic energy is converted into electrical energy by using the hydraulic power (hydraulic pressure, flow rate) of water that flows through the pipeline. In order to achieve this purpose, the present invention provides a small-scale hydroelectric power generation apparatus which produces electrical power by generating electrical power using hydraulic power, wherein the small-scale hydroelectric power generation apparatus comprises: a parallel pipeline (100) having an intake pipe (110) into which water is introduced and a water outlet pipe (150) from which the introduced water is discharged, and formed by connecting a plurality of first and second straight pipes (120, 130) between the intake pipe (110) and the water outlet pipe (150); first power generation equipment (210) and the second power generation equipment (220) which are connected between the first and second straight pipes (120, 130), respectively, and into which water is introduced, and which use the introduced water to rotate a hydraulic turbine (211) and operate a power generator (221), thereby producing electricity; a control unit (400) including a first flow rate regulating unit (310) and a second flow rate regulating unit (320) which regulate the flow rates of the water introduced into and discharged from the first power generation equipment (210) and the second power generation equipment (220), thereby controlling the flow rates for power generation, the control unit (400) controls on the basis of values detected by a flowmeter (410) that is provided on water introduction sides of the first power generation equipment (210) and the second power generation equipment (220), so as to selectively operate any one among the first and second power generation equipment (210, 220) or operate the first power generation equipment (210) and the second power generation equipment (220) at the same time, according to flow rate deviations of the water introduced, by means of opening and closing any one among the first and second flow rate regulating units (310, 320) or opening and closing the first flow rate regulating unit (310) and the second flow rate regulating unit (320) at the same time.

IPC Classes  ?

• F03B 15/00 - Controlling
• F03B 17/06 - Other machines or engines using liquid flow, e.g. of swinging-flap type
• F03B 13/08 - Machine or engine aggregates in dams or the likeConduits therefor

Abstract

The present invention relates to a vertical inline small hydropower generation device, which is provided in a pipeline of a small river or a water treatment facility such as a water treatment plant or a sewage treatment plant, or the like, and generates electricity through a power generation action for converting kinetic energy into electric energy by using hydropower (water pressure, flow rate) of water flowing in the pipeline, so as to supply the same.

IPC Classes  ?

• F03B 17/06 - Other machines or engines using liquid flow, e.g. of swinging-flap type
• F03B 3/12 - BladesBlade-carrying rotors
• H02K 9/04 - Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium
• H02K 9/19 - Arrangements for cooling or ventilating for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil
• F04D 29/58 - CoolingHeatingDiminishing heat transfer
• F03B 13/08 - Machine or engine aggregates in dams or the likeConduits therefor
• F03B 3/02 - Machines or engines of reaction typeParts or details peculiar thereto with radial flow at high-pressure side and axial flow at low-pressure side of rotors, e.g. Francis turbines
• E02B 9/02 - Water-ways