666 results about "Hydroelectric generation" patented technology

The invention discloses a wind, light and water-containing multi-source complementary micro-grid hybrid energy storage capacity optimal proportion method. According to the method, an annual output power curve of wind power generation, photovoltaic power generation and hydroelectric generation is simulated according to the distribution condition of natural resources such as wind, light and water, an annual load curve of a micro-grid is combined, system cost and power fluctuation are used as target functions, accumulator capacity and super-capacitor capacity are used as optimization variables, and meanwhile constraint conditions such as power balance constraint, maximum instantaneous power constraint, power supply reliability constraint, super-capacitor charge and discharge current and voltage constraint and accumulator SOC (System On Chip) constraint are determined to establish a wind, light and water-containing micro-grid hybrid energy storage optimization configuration model; optimized solution of the target functions is performed by using a fuzzy decision-containing multi-target planning GA-PSO (Genetic Algorithm-Particle Swarm Optimization) algorithm to obtain the optimal proportion of the hybrid energy storage capacity. Compared with the conventional GA algorithm and PSO algorithm, the method has the advantages that the convergence rate is higher and the problem of mutual conflict of the target functions in the multi-target optimization algorithm is avoided better.

The invention discloses a three-dimensional visual simulation training system and method used for professional training in terms of equipment operation and maintenance for staff of hydroelectric generation, thermal power generation, water conservancy project and the like. The system comprises a database module, an equipment model module, an operation simulation module, an overhaul simulation module and a checking system module. By combining with advanced multimedia simulation technologies, omni-directional and multi-level system training is provided to project operation and maintenance staff and managers; and the system has the advantages of high training efficiency, wide application, low training cost and the like, can be connected with existing production management systems for data information exchange and is also a practical digital training system in the real sense.

The invention discloses a control device and method for a wind/solar/water complementary power generation system, belonging to the technical field of renewable energy utilization. The control device disclosed by the invention comprises a wind power generation equipment control circuit, a micro-hydroelectric power generation equipment control circuit, a solar power generation equipment control circuit, a voltage/current detection circuit, a voltage frequency measurement circuit, a relay driving circuit, an MOSFET (metal-oxide semiconductor field effect transistor) driving circuit, a voltage stabilizing circuit, a single chip for storing programs and a peripheral circuit of the single chip. The method estimates the remaining electric quantity of a storage battery according to the working voltage and current of the storage battery, judges the working state of the system according to the remaining electric quantity and the working current of the storage battery, and controls the power generation capacity of the power generation equipment according to the working state of the system; and particularly when the storage battery is full, the power generation equipment and the storage battery are not cut off, and the power generation equipment is controlled to supply power to a load independently, thus the renewable energy can be more sufficiently used. Through the invention, the remaining use time of the electric quantity of the system is displayed in real time so that a user can reasonably distribute the electricity consumption; and by using a pluggable wireless communication circuit, remote monitoring on the system can be flexibly realized.

The invention discloses an intelligent rainwater system based on runoff simulation and multi-sensor monitoring, and an operation method. The system comprises a runoff simulation and control host basedon a GIS, a meteorological forecast and runoff satellite monitoring server, a distributed small meteorological station, a vertical surface rain condition monitor, a movable rainfall radar, an infrared video monitor, an evaporation measuring instrument, a rainwater pipe network flow monitor, a water quality online monitor, an air quality monitor, a radar rainfall monitor, an infiltration area saturation monitor, an accumulation area water level monitor, a shallow-layer underground water level monitor, a surface runoff monitor, a waterproof unmanned aerial vehicle with a speed measuring buoy, an optical fiber temperature sensing system, an optical fiber pressure sensing system, a communication module, an intelligent controller, a rainwater utilization facility water supply point, a high-position rainwater hydroelectric generation module, a submersible conveying pump, a pressurization infiltration device and the like. According to various parameters, the rainfall flood disasters are subjected to scientific early warning and warning, and measures are adopted, so that the disaster risk of rainfall flood disasters to a building area or a building can be reduced.

The invention provides a double-rotor planetary differential generator, which is composed of a hollow shaft, an outer rotor, an inner rotor and a planetary gear transmission mechanism, wherein the inner rotor is arranged in the middle of the outer rotor; a bearing arranged between the outer rotor and the inner rotor is connected with a centering shaft; an outer rotor iron core winding is arranged on the inner wall of the outer circumference of the housing of the outer rotor; an inner rotor iron core winding is arranged on the outer circumference of the outer wall of the housing of the inner rotor; the inner circle of the outer rotor iron core winding is adjacent to the outer circle of the inner rotor iron core winding and rotates in the reverse direction; the planetary gear transmission mechanism is arranged on the side surface of the outer rotor and the inner rotor, and includes a linkage disc and a planetary gear; the center of the linkage disc is connected with the hollow shaft through the gearing; the planetary gear is arranged on the edge of the linkage disc through the bearing; an outer ring gear is arranged on the edge of the housing of the outer rotor; an inner ring gear is arranged on the side surface of the inner rotor; and the planetary gear are simultaneously engaged with the outer ring gear and the inner ring gear. The generator is mainly used for low-speed wind power generation and low-fall hydroelectric generation.

The invention belongs to the technical field of compressed air energy storage, and in particular, relates to an isothermal compression air energy storage power generation system based on liquid temperature control and a method thereof. The system consists of an internal temperature control liquid piston, hydraulic power generation equipment, a gas storage tank, a low-pressure pool, a temperature control liquid source, an external temperature adjusting facility, a liquid driving device and a valve; in energy storage, the hydraulic power generation equipment converts electric energy to liquid potential energy, gas is compressed in the internal temperature control liquid piston, generated heat is stored by liquid, and high-pressure gas is fed in the gas storage tank; in power generation, high-pressure gas is expanded for acting in the internal temperature control liquid piston, and the heat is absorbed from the liquid to push the hydraulic power generation equipment to generate electricity; and the liquid in the temperature control liquid source replaces original liquid of the internal temperature control liquid piston to control the temperature of the gas in the liquid piston, so that the liquid temperature control of the temperature control liquid source is realized, and four working modes of an open direct supply operating mode, a closed direct supply operating mode, an afterheat utilization mode and an efficient power generation mode are realized.

The invention discloses a comprehensive ship electric propelling system which comprises a power source management system, a diesel power generating unit, an energy storage device, a shore connection box, a floating hydraulic power generating device, a distribution type power generating device, propulsion motors and a propeller. The diesel power generating unit is electrically connected with a common direct-current bus through rectifiers and a supply power gauge in sequence. The energy storage device is electrically connected with the common direct-current bus through a bidirectional DC/DC convertor. The shore connection box, the floating hydraulic power generating device and the distribution type power generating device are electrically connected with the common direct-current bus through the fourth rectifier, the fifth rectifier and the sixth rectifier. The common direct-current bus is electrically connected with a first inverter/frequency converter, a second inverter/frequency converter, a third inverter/frequency converter and a fourth inverter/frequency converter through a load power gauge. The first inverter/frequency converter, the second inverter/frequency converter, the third inverter/frequency converter and the fourth inverter/frequency converter are electrically connected with the right propulsion motor, the left propulsion motor, auxiliary equipment and daily electric equipment correspondingly. The comprehensive ship electric propelling system is high in energy utilization rate and good in energy-saving and emission reduction effect.

The invention belongs to the technical field of hydroelectric generation, and particularly relates to improved TLBO (teaching-learning-based optimization) algorithm-based hydroelectric generating set PID (proportion-integration-differentiation) speed regulator parameter optimization. The optimization comprises the following steps of (1) building a hydroturbine speed regulating system simulation model; (2) improving a basic TLBO algorithm; (3) applying the improved TLBO algorithm to optimizing parameters of the speed regulator of a hydroturbine speed regulating system, and obtaining a simulation result. Self-adaptive teaching factors, i.e., absorption weight of students and the after-school tutoring of teachers are added into the basic TLBO algorithm, while the convergence speed and the convergence precision are guaranteed, the phenomena of early-maturing and early convergence of the algorithm are avoided. An ITAE index of rotation rate deviation of a hydroturbine set serves as a standard fitness function, and the improved TLBO algorithm is used to optimize the parameters of the speed regulator, so that the convergence speed optimization efficiency is obviously improved, and the phenomenon of local optimum is avoided.

Systems and methods for using instream water flow velocity to increase hydro turbine output is provided. In one implementation, the system and method are adapted to harness the kinetic energy in flowing water, preferably in waste water spilling over low-head dams or flowing from pump discharge at reservoir pumping stations, and using such energy in conjunction with differentials between head water and turbine location to improve turbine output. In certain implementations, the novel technology can be used to establish dispersed small-scale hydroelectric generation units at existing low-head dams. Preferably, the dispersed small-scale hydroelectric generation units can be connected to the existing power grid, thus providing a new source of sustainable alternative energy.

The invention discloses a wind power or hydraulic power generation device. In the device, one end of a bracket (6) is connected with a fairing (1), and the other end of the bracket (6) is connected with a horizontal tail (4) and a vertical tail (5) connected with the horizontal tail (4) and vertical to the horizontal tail (4); and a rotating wheel (2) and a generator (3) driven by the rotating wheel (2) are arranged on the bracket (6) between the fairing (1) and the horizontal tail (4). The device can be flexibly reformed according to application occasions, and a third rotating wheel and a fourth rotating wheel can be arranged to adapt to different power generation occasions and improve the energy conversion efficiency. The invention belongs to the technical field of renewable energy source (wind energy, running water energy and tidal energy) power generation.

A wind-hydro power generation system and its power generation method which use both wind power and hydraulic power. Increasing the size of a hydraulic turbine for the hydraulic power generation may result in the decreased rotation power of the hydraulic turbine caused by the resistance of the wind when blades on the hydraulic turbine come out of the water. The present invention has a blade rotation system on the blades of the hydraulic turbine so that the blades may rotate according to the direction of the wind. As a result, wind resistance is not effected to the rotation of the hydraulic turbine even when the blades on the hydraulic turbine are out of water, but enhances the rotation power of the hydraulic turbine, which enables the use of wind power and hydraulic power at the same time.

A system includes an aquifer and a source of fluid external to the aquifer. A fluid communication channel extends between the source of fluid and the aquifer. Fluid can flow from the source of fluid to the aquifer through the fluid communication channel. An engine-generator is arranged to convert energy of the flowing fluid into electrical energy. No pumps are provided to move fluid from the aquifer to the source of fluid.

A double impulse turbine system to convert the energy of flowing fluid into electricity is provided. The system takes fully advantage of the high efficiency and compactness provided by contra-rotating permanent magnet generators to produce electricity. It is composed of two impulse turbines, rotating in opposite directions and coaxially connected to a central contra-rotating generator. In function, a fluid flow is divided into secondary flows oriented directly and tangentially toward the turbines for a maximum energy transfer. The system comes with turbines having different bucket designs adapted for uses in particular environments. Special housings or turbine chambers are designed to carry the turbines and enable the conversion of the energy of a fluid flowing in pipes into electricity. This double impulse turbine system can be used to convert into electricity the energy of any fluid flowing in-pipe as a flow or as a jet. It is provided to be used in and out urban environments in water supply distribution and wastewater piping systems or hydroelectric plants in different conditions, such as presence or not of floating debris, flow rate or pressure.

A vertical-shaft hydroelectric generator comprises a pile foundation deep into a seabed, a tower column built on the pile foundation, a power generator set installed on the tower column and an impeller connected with the power generator set. The tower column comprises an underwater platform, a supporting column and a water platform. The underwater platform is fixedly connected with the top of the pile foundation, the supporting column extends to the water surface and is fixedly connected with the water platform, and the water platform is higher than the water surface. The power generator set is arranged on the water platform, the impeller comprises lift-type blades installed on a rotary main shaft outside the supporting column, and the impeller is arranged in water. The lift-type blades can rotate in one direction under non-directional air flow and under non-directional water flow, and accordingly the lift-type blades of the vertical shaft can rotate in water in one direction, the lift-type blades of the vertical shaft are deep underwater on the basis and can rotate through scouring of the water flow or ocean currents, and hydroelectric generation can be achieved through the lift-type blades and the power generator set.

The hydroelectric power generating system incorporates a man-made dam structure configured to completely enclose a body of water. The dam is preferably filled by pumping seawater into the reservoir defined by the encircling dam. A circumferential canal feeds water to one or more penstocks. Each penstock has one or more hydroelectric turbine generators installed therealong. The penstocks feed an enclosed circumferential channel about the base of the dam. The channel delivers water to a pump that pumps the water back into the bottom of the reservoir. While this system results in a net loss of energy, the system can make use of surplus power to drive the return pump during periods of low electrical demand in order to replenish the reservoir.

The invention relates to the technical field of hydroelectric generation and discloses a floating power generation device comprising a turbine, a generator and a lifting device, wherein the generator is connected with the turbine and used for converting mechanical energy generated by water flow impact through the turbine into electric energy, and the lifting device is fixedly connected with the turbine and used for driving the turbine to move in the vertical direction according to the height of the water level. The turbine comprises impellers, a transmission shaft and half shafts, the number of the impellers is two, the impellers are connected to the two ends of the transmission shaft, one end of each half shaft is connected with the transmission shaft, and the other end of each half shaft is fixedly connected with the lifting device. The invention further discloses a power generation system comprising multiple floating power generation devices arranged along a water area with water flows. The floating power generation device can fully use water resources for generating power, is convenient to assemble and disassemble and beneficial to environment protection and dispenses with power station establishment.

The invention provides a hydrocone type multi-stage hydroelectric generation method and belongs to the technical field of hydroelectric generation. The method comprises the following steps of: firstly, selecting one section of river basin with a flow fall, installing a water inlet end of a siphonage pipeline on the upper end of water area of the flow fall section, laying the siphonage pipeline along the flow fall section, intruding a water outlet end of the siphonage pipeline into the lower end of water area of the flow fall section or other discharge regions; and arranging one or more water-turbine generator sets in a pipe section where the flow pressure difference of the siphonage pipeline reaches the requirement of the rotating speed of the water-turbine generator sets, wherein each water-turbine generator set is connected with a parallel operation control system. The method provided by the invention has the advantages of low engineering cost, little limit to regions, no need of building a dam on a river, large flexibility in arranging the generator sets, no damage and pollution to environments, lower operation cost, stable flow speed, and more suitability of being built in the river basin with the flow fall. The water outlet end of the siphonage pipeline can be used for supplementing a water source for a lake and a reservoir, can also be used for supplementing water for a water-deficient area, a dry river and a farmland, and plays a role in improving environment and farmland soil.

The invention discloses a synchronizing propeller device. The synchronizing propeller device mainly comprises paddle blades (3) and rotating wheels, wherein an upper rotating shaft (4) of the paddle blades (3) is connected with an upper rotating wheel by being inserted into an upper shaft seat (6), a lower rotating shaft (5) of the paddle blades (3) is connected with a lower rotating wheel by being inserted into a lower shaft seat (7), the paddle blades (3) are perpendicular or parallel to a rotating shaft (8) of the rotating wheels, the a rotating shaft (8) is directly connected with an output shaft of a power device, and each paddle blade (3) is symmetrically mounted. In a rotation process, the paddle blades (3) always perpendicularly enter into water. The device is widely used, and can be used in the aspects of ship propellers, water turbines, steam turbines, hydroelectric generation or tidal power generation and the like, the ship with the propeller provided by the invention can sail in shoal water, and also can sail in a water plant zone, a trash floating zone and a subaquatic sludge zone, so that the ship with the propeller has wide sailing are; and the synchronizing propeller device is low in manufacturing cost and simple and convenient to maintain.