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107 results about "Hydroelectricity" patented technology

Hydroelectricity is electricity produced from hydropower. In 2015, hydropower generated 16.6% of the world's total electricity and 70% of all renewable electricity, and was expected to increase by about 3.1% each year for the next 25 years.

Coordinated control of an aggregate, to provide a primary frequency adjustment

The invention relates to a method for controlling a virtual power plant that is composed of a battery and hydroelectric power plants and is connected to a power grid. The virtual power plant is subject to an overall power setpoint exceeding the operational limit of the battery. A first setpoint is sent to a local controller of a hydroelectric power plant, the first setpoint not taking into account hydroelectric power measurements but depending on an order of priority and on limits of the battery. Next, a second setpoint is provided, based on measurement of the overall power of the hydroelectric power plants. Simultaneously, the battery receives a third setpoint adjusted depending on the overall setpoint and the hydroelectric power measurements. The setpoints aim to maintain the stability over time in the overall power supplied by the virtual power plant, in compliance with the requested power setpoint.
Owner:ELECTRICITE DE FRANCE

Hydropower station equipment operation and maintenance risk assessment method and system based on big data analysis

The invention relates to the technical field of hydroelectric power generation equipment state monitoring, in particular to a hydropower station equipment operation and maintenance risk assessment method and system based on big data analysis, and the method comprises the steps: 1, carrying out the fusion collection of specific data of a hydropower station; step 2, hydraulic-mechanical coupling feature extraction; step 3, dynamically constructing a fault propagation network; and 4, generating a dynamic risk field and outputting a decision: injecting the coupling factor and the wet pollution index into equipment network nodes, generating risk density distribution through three-dimensional space interpolation, dynamically adjusting a risk threshold in combination with a real-time working condition, and outputting a priority maintenance node and a maximum maintenance time window under a constraint condition. Through deep analysis of a hydraulic-mechanical coupling failure mechanism, an equipment cluster risk conduction path is quantified, and dynamic risk assessment is realized in combination with a big data analysis technology, so that the accuracy, real-time performance and efficiency of hydropower station equipment operation and maintenance are remarkably improved.
Owner:SICHUAN HUANENG DONGXIGUAN HYDROPOWER CO LTD

All-terrain self-adaptive hydropower AI bionic robot intelligent inspection method and system

The invention discloses an intelligent inspection method and system for an all-terrain self-adaptive hydroelectric AI bionic robot, and relates to the technical field of robots, and the method comprises the steps: constructing a terrain stiffness matrix based on a laser radar, an IMU and a foot end force sensor, and driving a bionic joint group to carry out the intelligent switching of a wheel mode, a six-foot gait mode and an adsorption mode; for equipment defect identification, visible light, infrared and laser point cloud data are fused, and crack / corrosion classification is realized by adopting a contrast learning migration model; a dynamic risk grid map is generated in combination with the equipment fault history, the environment corrosion rate and the task emergency degree, the inspection path is optimized through an MOEA / D-TOPSIS algorithm, and multi-target balance of energy consumption and path length is achieved on the premise that the coverage rate is guaranteed; the positioning system integrates Beidou RTK, UWB anchor points and inertial navigation, and combines a dynamic SLAM enhancement technology, so that centimeter-level positioning precision under strong electromagnetic interference and satellite rejection environments is ensured, and an all-weather and all-terrain intelligent inspection solution is provided for hydroelectric facilities.
Owner:HUADIAN ELECTRIC POWER SCI INST CO LTD

Monitoring system and method for ecological environment around hydroelectric power plant

The invention relates to the technical field of monitoring, in particular to a hydroelectric power plant surrounding ecological environment monitoring system and method.The hydroelectric power plant surrounding ecological environment monitoring system comprises a water area monitoring module, a land area monitoring module, a remote communication module, a remote server, a data processing module and an early warning module; the method comprises the following steps: selecting a plurality of proper point locations in regions such as a reservoir, a downstream river channel and a diversion canal to arrange water area monitoring modules, and collecting water quality hydrological data and underwater biological activity data; selecting a plurality of appropriate point locations in the reservoir bank hydro-fluctuation belt, the side slope and the surrounding forest land to arrange land area monitoring modules, and collecting soil, vegetation and land biological activity data; the collected data are uploaded to a remote server for storage in real time through the remote communication module; the data processing module analyzes and processes the data, and immediately controls the early warning module to give an early warning to a worker after an abnormality is found; therefore, all-weather automatic monitoring and early warning can be carried out on the surrounding ecological environment of the hydroelectric power station.
Owner:CHONGQING WULONG DISTRICT HONGXING ELECTRIC POWER CO LTD

Bulb tubular unit runner sealing structure

The utility model discloses a bulb tubular unit rotating wheel sealing structure, belongs to the technical field of hydroelectric generation, solves the problem that whether water enters a rotating wheel or not cannot be detected, and comprises a bulb head and a draft tube, a main shaft is arranged on the inner wall of the bulb head, and the other end of the main shaft is fixedly connected with the rotating wheel. The outer surface of the bulb head and the outer surface of the rotating wheel are fixedly connected with fixing bases, grooves are formed in the outer surfaces of the fixing bases, and the inner walls of the grooves are fixedly connected with a plurality of sets of capacitive moisture sensors. Due to the fact that the dielectric constant of water is relatively large, when turbine oil in the groove contains moisture, the value of a sensor capacitor in the capacitive moisture sensor can be changed, the sensor can monitor the change of the capacitor in real time and transmit data to monitoring equipment, then workers can be warned conveniently, and the working efficiency is improved. And the groove can be conveniently and timely overhauled and maintained.
Owner:ZHAOPING GUIHAI ELECTRIC POWER CO LTD

A device and method for extracting energy from a flow of water

Conventional hydropower plants require significant hydrostatic head to produce sufficient power. As such, there is a need for efficient hydropower plants that may be utilised in sites having a low hyd
Owner:HYDRO POWER PODS LTD

Hydropower station power generation equipment safety monitoring method based on generator set temperature monitoring

The embodiment of the invention relates to the field of hydroelectric generation, in particular to a hydropower station power generation equipment safety monitoring method based on generator set temperature monitoring. One specific embodiment of the method comprises the following steps: collecting sensing data of a generator set; constructing a multi-modal feature extraction model of the power generation equipment; inputting the sensing data of the generator set into the multi-modal feature extraction model to obtain multi-modal feature extraction data; performing safety monitoring processing on the multi-modal feature extraction data to generate equipment safety data; and scheduling the hydropower station power generation equipment based on the equipment safety data. According to the embodiment, the operation safety and the operation and maintenance efficiency of hydropower station equipment can be improved.
Owner:HUANGHE WATER CONSERVANCY & HYDROPOWER DEV GENERAL

Operation simulation method, device and equipment of integrated energy base

The invention discloses an operation simulation method, device and equipment of an integrated energy base, and relates to the technical field of planning design and operation scheduling of the integrated energy base. In the method, on one hand, a hydroelectric output function of a hydroelectric power station is divided into a plurality of linear equations, so that a quadratic function problem can be converted into a linear function problem, and the linear equation is divided into a plurality of linear equations; and furthermore, in the operation process of simulating the integrated energy base based on the hydroelectric output function, the solving difficulty can be greatly reduced, and the simulation difficulty of the integrated energy base can be further reduced. On the other hand, the output weight of the hydroelectric power plant is determined based on the output fluctuation coefficient and the power abandoning coefficient of the wind and light power plant, and the generating capacity of the hydroelectric power plant is corrected based on the output weight. Therefore, the finally obtained generating capacity of the hydroelectric power station can be relatively accurate, and the problem that the hydroelectric power station has poor compensation and regulation performance on the wind-solar power station can be solved.
Owner:POWERCHINA HUADONG ENG CORP LTD

Virtual power plant optimization scheduling method and system based on multi-type energy storage cooperation

The invention relates to the technical field of virtual power plants, and discloses a virtual power plant optimal scheduling method and system based on multi-type energy storage collaboration, which solves the problem that the existing virtual power plant cannot accurately predict the generating capacity, and comprises a scheduling system body, an energy storage subsystem and a power generation system, the energy storage subsystem is connected with the dispatching system body, and the dispatching system body and the energy storage subsystem are both connected with the power generation system. The dispatching system body is composed of a centralized control platform, a solar power generation regulation and control module, a wind power generation regulation and control module, a hydropower station power generation regulation and control module, a thermal power generation regulation and control module, a power consumption prediction subsystem, a data analysis module, an adjustable load integration module and an optimal configuration module. By means of the scheduling method and system, accurate prediction of wind energy, solar energy and hydroelectric power can be achieved, and electric energy scheduling is more refined.
Owner:JIANGSU WEICHUANGJING INTELLIGENT TECH CO LTD

Optimal scheme selection method for station service power system of hydroelectric power plant

The invention belongs to the technical field of power utilization systems, and particularly provides an optimal scheme selection method for a power utilization system of a hydroelectric power plant, which comprises the following steps: constructing an equipment fault probability model considering decision dependence uncertainty, determining a current operation decision according to a direct current power flow model, then calculating the equipment fault probability according to the equipment fault probability model considering the decision dependence uncertainty, and then generating a random outage event; constructing a four-state reliability model of the auxiliary power equipment; according to the state of the equipment, sampling is carried out by using the four-state reliability model of the station service equipment; screening and rejecting the state that the system does not lose the load by adopting an auxiliary power reliability acceleration algorithm; determining whether the screened system state is a load loss state or not by adopting direct current power flow, and if so, determining the system load cutting capacity; and for different power supply schemes, calculating reliability indexes, and selecting an optimal scheme. According to the method, the reliability of the station service power system under different schemes is calculated, and the optimal station service power arrangement scheme is obtained.
Owner:CHINA YANGTZE POWER

Hydropower plant zero-rise voltage control method and system thereof

The application relates to a zero-voltage step-up control method and system for a hydropower plant, which comprises the following steps: controlling the rotating speed of a generator set to a rated rotating speed, and establishing an electric circuit for zero-voltage step-up; based on a zero-voltage step-up starting instruction, controlling an excitation system to gradually increase the voltage of the generator set from zero to a rated voltage according to a preset step-up strategy, and collecting operating parameters of the generator set; judging whether the operating parameters of the generator set exceed a safety threshold; if yes, performing a safety intervention operation; otherwise, after the voltage of the generator set is increased to the rated voltage, ending the step-up and generating test data. According to the application, based on the zero-voltage step-up starting instruction, the excitation system gradually increases the voltage of the generator set from zero to the rated voltage according to the preset step-up strategy, and the operating parameters of the generator set are collected synchronously, so that the control logic of the step-up process is solidified into a system program, and the step-up rate fluctuation and step omission caused by experience difference or negligence in manual operation are eliminated.
Owner:SANXIA JINSHAJIANG YUNCHUAN HYDROPOWER DEV CO LTD

Dirt blocking equipment for hydroelectric generation

The utility model discloses dirt blocking equipment for hydroelectric generation, which belongs to the field of hydroelectric generation and comprises a connecting pipe, a filter plate is fixedly connected between the inner walls of the connecting pipe, the filter plate is in a cone shape with an upward tip end, a cleaning mechanism is arranged at the top of the filter plate and comprises a rotating shaft, and a connecting block is fixedly connected onto the rotating shaft. The connecting block is fixedly connected with a plurality of groups of first scraping plates which are arranged in the circumferential direction, the end parts of the first scraping plates are fixedly connected with second scraping plates, the first scraping plates and the second scraping plates are tightly attached to the outer wall of the filter plate, the second scraping plates are elastic, and the cleaning mechanism further comprises a power assembly and a collecting assembly. The device has the beneficial effects that a first scraping plate is driven by a rotating shaft to drive a second scraping plate to rotate, when the second scraping plate abuts against the inner wall of a connecting pipe, the second scraping plate generates elastic deformation, and when the second scraping plate rotates to a discharging opening, the second scraping plate loses limitation, scraped sundries are bounced into a protection box, and therefore the discharging effect is improved. Therefore, sundries accumulated at the bottom end of the filter plate are cleaned.
Owner:ZHONGSHEN ENERGY INVESTMENT (HAINAN) CO LTD

Method for evaluating influence of wind and light absorption on operation of hydropower station in consideration of climate change conditions

The invention discloses a method for evaluating the influence of wind and light absorption on the operation of a hydropower station by considering climate change conditions, which belongs to the field of reservoir dispatching in hydroelectric power generation, and comprises the following steps: carrying out short-term simulation dispatching on a water-wind-light complementary system, and extracting power abandoning results under different hydropower outputs as a wind and light power abandoning loss function with short-term dispatching characteristics; constructing a target function based on the wind-solar power abandoning loss function, and constructing a medium-and-long-term optimization scheduling model of the water-wind-solar complementary system coupled with short-term scheduling characteristics; analyzing the meteorological data to obtain a climate sudden change year and an extreme weather typical year, and according to the medium-and-long-term optimization scheduling model of the water-wind-light complementary system coupled with the short-term scheduling characteristics, calculating to obtain reservoir water level processes and hydropower station output conditions before and after the climate sudden change year and in the extreme weather typical year; and according to the reservoir water level process before and after the climate sudden change year and the extreme weather typical year and the output condition of the hydropower station, evaluating the influence of wind and light absorption on the operation of the hydropower station.
Owner:CHINA POWER CONSRTUCTION GRP GUIYANG SURVEY & DESIGN INST CO LTD +3

Real-time monitoring system for operating state of hydraulic unit based on vibration signals of multiple measuring points

This invention relates to the field of hydropower equipment condition monitoring technology, specifically a real-time monitoring system for the operating status of hydropower units based on multi-point vibration signals. The system includes modules for multi-point vibration signal acquisition, data preprocessing, extraction of spatiotemporal coupling features from multiple measurement points, dynamic updating of adaptive thresholds for operating conditions, status identification, and real-time prediction and early warning of vibration degradation trends. This invention deploys a multi-point acquisition architecture along the vibration transmission path, constructs spatial weight coefficients based on vibration transmission characteristics to extract spatiotemporal coupling features, dynamically updates early warning thresholds by associating with unit operating parameters, achieves advanced prediction of degradation trends through a time-series model, and employs an edge-end collaborative deployment architecture. This improves the accuracy of early anomaly identification and adaptability to changing operating conditions, achieving millisecond-level low-latency real-time monitoring, and is suitable for the safe management and control of the operating status of various hydropower units.
Owner:INRUITE (BEIJING) ELECTRIC CO LTD

Mine wastewater iron-manganese electrolytic treatment system and method based on multi-energy cooperative power supply

The invention relates to the technical field of wastewater treatment, and discloses a mine wastewater iron-manganese electrolytic treatment system and method based on multi-energy cooperative power supply, and the system comprises a hydroelectric generation module, a solar power generation module, a hybrid energy storage module, an electrolytic treatment module and a control module; the control module can control the hydroelectric generation module and the solar power generation module to be started simultaneously to supply power to the electrolytic treatment module and charge the hybrid energy storage module; the control module can also control the hydroelectric generation module, the solar power generation module and the hybrid energy storage module to be started simultaneously to supply power to the electrolytic treatment module; the control module can also control the hybrid energy storage module to supply power to the electrolytic treatment module. During electrolysis treatment, self power supply can be achieved, and low cost and zero carbon emission are achieved.
Owner:重庆川东南工程勘察设计院有限公司 +2

Hydropower station optimal scheduling method and related equipment

The invention discloses a hydropower station optimization scheduling method and related equipment. The method comprises the following steps: obtaining the reservoir level of a target reservoir where a target hydropower station is located and a scheduling time period where a current scheduling period is located; based on an ant colony algorithm, judging whether the scheduling time period is the last but one time period in all time periods, if not, calculating a next path node, updating a preset taboo table, and judging whether one-time optimization iteration is completed or not; if yes, updating the pheromone concentration and returning to the step to judge whether the scheduling time period is the last but one time period in all time periods, if not, calculating a next path node, updating a preset tabu table and judging whether one optimization iteration is completed or not until the number of optimization iterations is larger than a preset threshold value, and obtaining a target scheduling scheme for optimal scheduling of the hydropower station; the target scheduling scheme is used for representing an optimal scheme of optimal scheduling of the hydropower station. The invention can be widely applied to the technical field of hydroelectric generation.
Owner:GUANGDONG RES INST OF WATER RESOURCES & HYDROPOWER

Operational simulation methods, devices, and equipment for integrated energy bases

This application discloses a method, apparatus, and equipment for simulating the operation of integrated energy bases, relating to the fields of integrated energy base planning, design, and operation scheduling technology. The method of this application, on the one hand, decomposes the hydropower output function of a hydropower station into multiple linear equations, thus transforming a quadratic function problem into a linear function problem. This significantly reduces the difficulty of solving the problem during the simulation of the integrated energy base's operation based on the hydropower output function, thereby reducing the overall simulation difficulty. On the other hand, based on the output fluctuation coefficient and curtailment coefficient of wind and solar power stations, the output weight of the hydropower station is determined, and the power generation of the hydropower station is corrected based on this output weight. Thus, the final power generation of the hydropower station can be obtained more accurately, thereby solving the problem of poor compensation and regulation performance of hydropower stations for wind and solar power stations.
Owner:POWERCHINA HUADONG ENG CORP LTD

Double-power-supply manager based on hydroelectric generation and bathroom equipment

The utility model discloses a dual power supply manager based on hydroelectric generation and bathroom equipment, and relates to the technical field of bathroom equipment, the dual power supply manager comprises a hydroelectric generation energy supply module, a storage battery module and a processor, the hydroelectric generation energy supply module responds to waterway flow information of the bathroom equipment to generate power supply electric energy and evaluation electric energy, the storage battery module provides power supply electric energy for the processor and provides evaluation electric energy. The storage battery module is used for conducting a supplementary energy supply loop of the storage battery module when the evaluated electric energy is smaller than a preset supplementary electric energy value, and providing supplementary electric energy for the processor; the control unit of the processor responds to electric energy information received by the electric energy input end of the processor and provides working electric energy for a to-be-powered module of the bathroom equipment, and the electric energy information is power supply electric energy or power supply electric energy and supplementary electric energy. According to the utility model, the stable operation of each functional module in the bathroom equipment is ensured by using a dual-power supply mode, and the power supply work of the bathroom equipment is executed in a low-cost, high-practicability and high-stability manner.
Owner:FOSHAN DAHUI BIO TECH CO LTD

Distributed data warehouse construction method for health monitoring of hydroelectric power production equipment

The present application relates to a distributed data warehouse construction method for hydropower production equipment health monitoring, comprising: analyzing hydropower equipment data application requirements to determine the analysis theme of the hydropower equipment; constructing a data warehouse layered architecture comprising an original data layer ODS, a detailed data layer DWD, a service data layer DWS, a theme data layer DWT, and a data application layer ADS; establishing a hydropower production equipment data model; and constructing a hydropower production data warehouse physical model comprising dimension tables and fact tables. The present application realizes unified extraction, conversion and loading of various system data sources of the hydropower plant, guarantees data quality, and breaks data silos; realizes centralized and unified management of data, utilizes data backup, data security control and access permission management functions of the data warehouse to ensure data security and reliability; reduces manual workload for data collection, arrangement and management, and improves data processing and analysis efficiency.
Owner:DATANG HYDROPOWER SCI & TECH RES INST CO LTD +1

High-water-head sand-containing water flow hydropower station water turbine wear shutdown fault prediction method and intelligent reporting system

The invention discloses a high-water-head sand-containing water flow hydropower station water turbine wear shutdown fault prediction method and an intelligent reporting system, and belongs to the field of hydroelectric power generation equipment state monitoring and early warning. The method comprises the following steps: collecting multi-source heterogeneous data in real time and fusing the multi-source heterogeneous data; a water turbine wear state comprehensive index is constructed, and the overall health degree of a water turbine flow passage component is quantified; predicting the remaining service life based on a physical mechanism and a data-driven fusion model; and dividing and dynamically adjusting a fault risk level, and generating adaptive early warning information. According to the method, sediment characteristic monitoring, vibration spectrum analysis, efficiency calculation and historical maintenance data are fully fused, risk grade evaluation and self-adaptive early warning of abrasion faults are achieved, the accuracy and the real-time performance of water turbine state monitoring are improved, meanwhile, a decision support report is automatically generated through an intelligent reporting device, and the water turbine state monitoring accuracy and the water turbine state monitoring real-time performance are improved. Power station operation and maintenance are promoted to be converted from regular maintenance to predictive maintenance, and the method has good engineering application value.
Owner:YANGZHOU UNIV

Gantry hoist anchoring device

The utility model provides an anchoring device of a gate-type hoist, which relates to the technical field of hydropower hoisting equipment, and comprises an anchoring embedded part, an anchoring seat, an anchoring shaft, an anti-pulling assembly and a dam body, the anchoring embedded part is provided with a slot, the anchoring seat is provided with a shaft hole, the anchoring shaft penetrates through the shaft hole and then is matched with the slot in an inserting manner, and the anti-pulling assembly is arranged on the dam body. The anchoring base is used for being connected with a portal hoist body, the anti-pulling assembly and the anchoring shaft are coaxially fixed, and the end, away from the anchoring shaft, of the anti-pulling assembly and the anchoring embedded part are both embedded in the dam body. The anchoring device has the beneficial effects that the anchoring device has anti-sliding and anti-overturning capacities at the same time, and the load of equipment is effectively reduced.
Owner:NORTHWEST ENGINEERING CORPORATION LIMITED

Underground powerhouse three-dimensional model rapid construction method in combination with Grasshopper and Revit

The invention relates to the field of underground powerhouse information of hydroelectric power engineering, and discloses an underground powerhouse three-dimensional model rapid construction method combining Grasshopper and Revit, comprising the following steps: S1, forming a three-dimensional terrain entity according to terrain contour line data and stratum exploration data, S2, determining a plurality of working planes on the basis of the three-dimensional terrain entity; s3, creating a drainage pipe family sample based on Revit, importing Excel data through Grasshopper to carry out parametric modeling, and generating a drainage hole curtain layout; s4, the drainage hole curtain layout generated by the Grasshopper is introduced into Revit through a Revit plug-in; and S5, performing quality inspection and repair on the constructed three-dimensional entity of the underground powerhouse. By combining Grasshopper and Revit parametric modeling technologies, rapid construction from topographic and geological data to an underground powerhouse structure entity is achieved, the problems that traditional manual modeling is long in time consumption and prone to errors are solved, meanwhile, the spatial precision of stratigraphic stratification, fracture simulation and building arrangement can be kept, and it is ensured that the model can be used for engineering numerical calculation and structural analysis.
Owner:FUJIAN WATER CONSERVANCY & HYDROPOWER RES INST

Multifunctional accurate positioning tool suitable for hydroelectric generation large-scale machine manufacturing equipment

The multifunctional precise positioning tool suitable for the hydroelectric generation large-scale machine manufacturing equipment is provided with a tool frame, the tool frame is provided with a multi-head multi-direction installation structure, the multi-direction installation structure comprises an installation disc arranged on the tool frame in a sleeving mode and a plurality of fixing arms fixedly installed on the installation disc, the fixing arms extend in the radial direction, and the tool frame is provided with a plurality of positioning holes. The outer end of each fixing arm is connected with a distance adjusting device, the outer end of each distance adjusting device is provided with a tool installation structure used for installing a detection tool, and the detection tool is any one or more of a trigger type measuring head, a scanning type measuring head, a standard detection test shaft and a standard detection test sleeve. The positioning device is convenient to use, accurate in positioning and capable of meeting the corresponding requirements of large mechanical manufacturing equipment such as hydroelectric power generation equipment and the like.
Owner:STATE POWER INVESTMENT GRP JIANGXI ELECTRIC POWER CO LTD JIANGKOU HYDROPOWER PLANT

Method for storing and releasing energy and obtaining geothermal energy through formation fracture of non-communicated shaft

The invention discloses a method for storing and releasing energy and obtaining geothermal energy through formation fractures of a non-communicated shaft. The method comprises the steps that an energy storage geothermal layer containing geothermal resources and not containing oil gas is recognized; high-pressure fluid is injected into a target shaft, so that a target artificial stratum fracture is generated, or a target original stratum fracture in a closed state in the target shaft in the energy storage geothermal layer is opened; normal-temperature high-pressure fluid is injected into the target wellbore, so that the width of the stratum fracture is increased, stratum rock is elastically deformed to store energy, and the fluid in the stratum fracture exchanges heat with the energy storage geothermal layer; when the width of the ground layer crack reaches the target width, the reverse exhaust pipeline is closed to enable the fluid to continuously exchange heat with the energy storage geothermal layer so that the fluid can store heat; and high-temperature and high-pressure fluid reversely discharged in the stratum fracture closing process is used for driving hydroelectric power generation equipment and geothermal power generation equipment to generate power, so that the obtained geothermal energy and the stratum rock elastic deformation energy are converted into electric energy to be released.
Owner:SHAOXING YUANXI ENERGY TECH CO LTD

A deep-ocean energy coupling utilization system and operation method

The present application relates to the technical field of renewable energy development and seawater desalination, and discloses a deep-geological-ocean energy coupling utilization system and a running method. The system comprises a seawater taking unit, a horizontal full-pipe pressure flow transmission pipeline, a hydraulic power generation unit, a seawater desalination unit and a deep well group unit, and is sequentially connected to form a closed loop through the deep well-pipeline combination constructed by a deep-geological engineering. The present application forms a stable triangular hydraulic distribution along the whole pipeline by artificially setting a water head difference, thereby ensuring that multiple water turbines independently work and power is stably superimposed. The present application can realize long-distance water transmission through the deep well-pipeline, utilize natural energy to assist seawater desalination, and drive reverse osmosis desalination by using the high water head pressure energy of the deep well to generate power. Surplus power can be sent out.
Owner:HUBEI QINGJIANG HYDROPOWER DEV +1

Cooler blockage prediction method based on deep learning coupled with physical constraints

The present invention relates to the technical field of hydropower equipment state prediction. The present invention discloses a cooler blockage prediction method based on deep learning coupled with physical constraints, comprising the following steps: collecting the temperature, pressure difference, and flow parameters of the cooler during operation to generate time series data; preprocessing the time series data to generate time series sample vectors; constructing a deep learning hybrid model to extract local features and capture global time series dependencies through the deep learning hybrid model; combining the Navier-Stokes equations and cross entropy to construct a comprehensive loss function; inputting the processed data into the deep learning hybrid model to output a cooler blockage state classification result. The present invention can achieve early and accurate identification of the cooler blockage state, solving the problem of delayed response of traditional methods. It can issue an early warning of blockage, identify the blockage type in advance, and avoid unplanned downtime.
Owner:CHINA YANGTZE POWER

Hybrid water / power generation system

PCT designated stageWO2025250024A1AuxillariesSeawater treatmentWater desalinationBuoy
A water and power generating system is disclosed, comprising at least one renewable energy generator, at least one submerged or floating desalination apparatus configured to be at least partially powered by the renewable energy generator, a controller, a desalinated water output conduit, and an electrical power output. The controller is configured to dynamically adjust the operation of the desalination apparatus in response to variations in available renewable energy and fluctuating demands for desalinated water and electrical power. Also disclosed is a water desalination system comprising a docking platform with a substantially tubular housing, mooring attachments, and ballast for vertical orientation. The docking platform may be connected to multiple floating desalination buoys. The platform may further include electrical and water distribution hubs for interconnection with the buoys and shore-based infrastructure. The desalination buoys may incorporate intake bubble curtain devices and brine dispersal systems to enhance intake quality and manage brine discharge.
Owner:DEHLSEN ASSOC OF THE PACIFIC LTD

Hydropower simulation method, device, equipment and medium for integrated energy base

The application discloses a hydropower simulation method, device, equipment and medium of a comprehensive energy base, relates to the technical field of comprehensive energy base planning and design and operation scheduling, in the method, a second time length is taken as a statistical dimension, output fluctuation coefficients and abandoned electricity coefficients of wind and light power stations are counted, output weights of hydropower stations are determined based on the output fluctuation coefficients and the abandoned electricity coefficients, and the power generation of the hydropower stations is corrected based on the output weights, so that the power generation of the hydropower stations can be reduced when the output fluctuation coefficients and the abandoned electricity coefficients of the wind and light power stations are large, and the power generation of the hydropower stations can be increased when the output fluctuation coefficients and the abandoned electricity coefficients of the wind and light power stations are small. Since the output fluctuation coefficients and the abandoned electricity coefficients of the wind and light power stations are considered when the power generation of the hydropower stations is determined, the power generation of the hydropower stations obtained finally can be relatively accurate, and thus the problem that the scheduling of the hydropower stations is not accurate enough can be solved.
Owner:POWERCHINA HUADONG ENG CORP LTD

Vertical lifting piston type water-lifting check valve structure applied to water hammer effect pump

The utility model discloses a vertical lifting piston type water raising check valve structure applied to water hammer effect pump belongs to the field of hydroelectricity. Including valve seat, valve body, piston type valve core, be provided with water inlet channel on the valve seat, the valve body sets up the top of valve seat, and the piston type valve core sets up between valve seat and valve body vertically, and piston type valve core and fixed nut water inlet channel upper and lower opposite, the center of valve body is provided with the guide bush, and the guide bush's center is up and down movable and is provided with the guide rod, and the upper end of guide rod is connected with push -and -pull type electromagnet, and the lower extreme of guide rod is connected with piston type valve core. Compared with prior art, the water raising check valve of the application is intelligently controlled through push -and -pull type electromagnet, and the stability is strong, can automatically adjust the working condition according to actual condition, guarantees water hammer pump to run efficiency stability under different flow, pressure condition, the opening of water raising check valve is more rapid, can and drain valve synchronous, will not appear response lag, can improve the utilization of water hammer effect.
Owner:SHENZHEN JINHONG NEW ENERGY TECHNOLOGY CO LTD