481 results about "Hydroelectric generation" patented technology

The invention provides a water turbine runner crack electric arc additive repairing track planning method based on an irregular model, and relates to the technical field of hydroelectric power generation equipment crack repairing. The method comprises the steps that crack defects are removed through carbon arc air gouging, and a model of a blade area to be repaired is established; based on a reverse reconstruction technology and a Boolean operation technology, generating a three-dimensional grid model of the irregular repair area; a mixed trajectory planning strategy is optimized, and the repairing area is sliced to generate an electric arc additive repairing trajectory; and welding gun posture optimization based on collision detection is carried out, and the contour track is adjusted according to a given rule. A geometric model of a to-be-repaired area of a blade is established, and a three-dimensional grid model of an irregular repaired area is quickly and accurately established based on a reverse reconstruction technology and Boolean operation.

The invention relates to the field of hydroelectric generation automation control, discloses an intelligent flow-pressure double closed-loop control method and system for a water inlet ball valve of a water turbine, and aims to solve the technical problems that flow stability and pressure fluctuation suppression are difficult to consider, dynamic response is delayed and working condition adaptability is poor in existing single-loop control. The method comprises the steps that inlet pressure and flow data are collected in real time through a pressure sensor and an ultrasonic flowmeter, a cascade structure of outer ring flow control and inner ring pressure control is constructed in combination with working condition parameters such as the rotating speed of a unit and the opening degree of a guide vane, and a working condition self-adaptive weight distribution module is introduced to dynamically adjust the double-ring gain coefficient; meanwhile, a feed-forward compensation mechanism and an optimal efficiency curve database are fused, and dynamic matching of set values and advanced response of load instructions are achieved. The system comprises a data acquisition unit, a double-closed-loop control unit, a weight distribution unit, an electro-hydraulic servo execution mechanism and a safety interlocking module, and supports microsecond-level gain updating and high-precision valve position control. According to the technical scheme, the adjusting precision and the response speed of the water turbine under the complex working condition are remarkably improved, the actual measurement efficiency is improved by 2.5%-4.8%, the adjusting time is shortened to be within 3 seconds, the positioning precision reaches + / -0.5 degree, and safe and stable operation of the system is guaranteed.

The invention discloses an optimization method and device for hydraulic power and structure coordination of a runner of an anti-abrasion mixed-flow water turbine, and relates to the field of hydroelectric generation, and the optimization method for hydraulic power and structure coordination of the runner of the anti-abrasion mixed-flow water turbine comprises the steps that the abrasion position of the runner is determined according to operation parameters of the runner within preset time; carrying out wear resistance optimization on the wear position, and determining whether the wear resistance of the optimized wear position meets a first preset standard or not; under the condition that it is determined that the wear resistance meets the first preset standard, finite element analysis is conducted on the rotating wheel to determine whether the structural performance of the rotating wheel meets a second preset standard or not; and when it is determined that the structural performance of the rotating wheel does not meet the second preset standard, structural performance optimization is performed on the hardware structure of the rotating wheel. By the adoption of the technical scheme, the problem that when a traditional water turbine works in a high-sediment-content river, the rotating wheel is prone to abrasion due to sediment, and therefore the service life of the water turbine is affected is solved.

The invention particularly discloses a visual monitoring system and an analysis method for the abrasion state of an impulse turbine set, and relates to the technical field of hydroelectric power generation equipment monitoring. The device comprises a visual monitoring module, a control module and an abrasion analysis early warning module, the visual monitoring module collects images through an industrial camera, an LED light source, a packaging protection structure and a water and mist removing device. The control module formulates an imaging mechanism according to working conditions such as strong water mist interference, idling no water, static no water and the like, and is linked with a unit PLC control system to realize imaging triggering, state adjustment and data interaction; and the abrasion analysis and early warning module identifies an abrasion area through a U-Net + + algorithm, calculates abrasion parameters based on a multi-view vision technology, grades the abrasion parameters, predicts a trend by adopting an ARIMA model, and recommends a maintenance scheme through rule reasoning in combination with threshold early warning. Automatic and intelligent monitoring and analysis of the abrasion state of the impact type unit are achieved, and guarantee is provided for safe and efficient operation of the unit.

The invention belongs to the field of hydroelectric power generation facilities, and discloses elastic hinged series hydrofoil power generation equipment and method.The elastic hinged series hydrofoil power generation equipment comprises an elastic hinged mechanism and two oscillating hydrofoil power generation devices, and each oscillating hydrofoil power generation device comprises a supporting frame, a power generator, a sliding rail, a sliding block, a hydrofoil and a bidirectional damping mechanism; one end of the hydrofoil is used for stretching into water flow, a connecting shaft is installed at the other end of the hydrofoil, the connecting shaft is rotatably installed on the sliding block and connected with the generator, and the bidirectional damping mechanism is fixedly connected with the sliding block. The two hydrofoils are connected through an elastic hinging mechanism, the elastic hinging mechanism comprises a first extension spring and two hinging pieces, and the first extension spring is hinged to the hydrofoils. The two hydrofoils are elastically connected through the elastic hinge mechanism, the hydrofoils can better adapt to the change of water flow and the coupling effect between the hydrofoils, energy in the water flow is more fully utilized, the effective working flow speed range of power generation equipment is widened, and the total energy harvesting amount of a unit water area is increased.

The invention discloses a pump turbine phase resonance risk identification method and device, a medium and a product, and relates to the field of hydroelectric generation. The method comprises the following steps: firstly, carrying out a pressure pulsation test on the water-turbine generator set to determine each-order dominant frequency of an excitation source; calculating the wavelength of a pressure wave corresponding to each order of dominant frequency according to the working condition of the pump turbine; according to the working condition of the pump turbine, the position difference of two pressure wave transmission during two adjacent excitation is calculated; substituting the wavelength of the pressure wave corresponding to the dominant frequency of each order and the position difference under different pump turbine working conditions into a phase resonance risk coefficient calculation formula, and calculating to obtain a phase resonance risk coefficient of the pressure wave corresponding to the dominant frequency of each order; and comparing the phase resonance risk coefficient of the pressure wave corresponding to the dominant frequency of each order with the risk judgment coefficient, and identifying the harmonic order with the phase resonance risk. By adopting the method, the judgment precision of phase resonance can be improved, and the application range of the phase resonance judgment method is expanded.

The invention relates to the technical field of hydroelectric generation, and discloses a power distribution method, device and equipment of a hydroelectric generating set, a medium and a product, the power distribution method of the hydroelectric generating set comprises the following steps: determining a plurality of preliminary power distribution schemes according to the power grid demand power and the rated power of the hydroelectric generating set; determining a target damage index and a target efficiency index corresponding to each preliminary power distribution scheme according to the working condition data of the plurality of hydroelectric generating sets in each preliminary power distribution scheme; fusing the target damage index and the target efficiency index to obtain a health degree corresponding to each preliminary power distribution scheme; according to the health degree, a target power distribution scheme is selected from the multiple preliminary power distribution schemes, and power is distributed according to the target power distribution scheme, the health degree is obtained by fusing the target damage index and the target efficiency index, the target power distribution scheme is selected according to the health degree, and the accuracy of the target power distribution scheme is improved.

The utility model discloses vertical shaft hydroelectric power generation equipment which comprises a power generation module and a power output module, the power generation module comprises a floating platform, a power generator and a power input shaft, the power input shaft is vertically arranged and arranged on the floating platform in a swinging mode, the power generator is arranged on the floating platform, and a motor shaft of the power generator is in transmission connection with the power input shaft; the driving module comprises a water wheel assembly, the water wheel assembly comprises a plurality of blades, the blades are distributed around the rotating axis of the water wheel assembly, and the water wheel assembly is connected with the power input shaft; the counterweight assembly comprises a connecting rod, a rotating seat, a first anchor chain and a first counterweight part, the lower end part of the connecting rod is rotatably arranged on the rotating seat, and the first anchor chain is connected between the rotating seat and the first counterweight part; the upper end of the connecting rod is connected to the bottom of the water wheel assembly. The power generation efficiency of the hydroelectric power generation equipment is improved.

The invention discloses a pipeline hydraulic self-energized flow monitoring device, which comprises a static part and a rotating part, and is characterized in that the static part comprises a stator, a magnetic induction coil, a flange, a fixed bracket, a turbine flowmeter, a rotary connecting device and a cap piece; the rotating component comprises a rotating wheel device, a neodymium-iron permanent magnet and a self-lubricating bearing; the rotating wheel device comprises blades and a hub body. The pipeline hydroelectric generation device and the turbine flowmeter are combined, water flows through the pipeline hydroelectric generation device to wash blades, an electromagnetic module in the device generates current through electromagnetic induction to supply the current to the turbine flowmeter and capture information, and the problem that the turbine flowmeter needs an external power source to work is effectively solved; the magnetic induction coil and the fusion rotor are fixed in the shell, absolute isolation sealing is achieved, conveyed fluid media are prevented from infiltrating a power generation equipment part, flanges are designed on the two sides of a pipeline, sealing connection with other pipelines is achieved, and equipment installation and disassembly are convenient.

The invention provides a water turbine runner crack additive repair trajectory planning method based on a regular trapezoidal groove, and relates to the technical field of hydroelectric power generation equipment crack repair, and the method comprises the steps: obtaining a trapezoidal groove grid bottom tangent plane based on a region growth algorithm, and carrying out the layer-by-layer slicing of the trapezoidal groove through the tangent plane; obtaining a section contour of the trapezoidal groove, and segmenting the contour of the trapezoidal groove by using tangential features of contour points; extracting a boundary curve in the generatrix direction of the trapezoidal groove, and generating a continuous and smooth parameterized spline curve by using a spline curve interpolation method; equally-spaced track points between the two spline curves are obtained based on an isoparametric method, and the track points are connected to form an additive track in the trapezoidal groove. Geometric modeling, a parameterized spline curve theory and additive manufacturing are organically combined, and accurate trajectory planning under the special geometric structure of the trapezoidal groove is achieved.

The invention relates to the technical field of state prediction of hydroelectric power generation equipment, and discloses a cooler blockage prediction method based on deep learning coupling physical constraint, which comprises the following steps of: acquiring temperature, pressure difference and flow parameters during operation of a cooler, and generating time sequence data; preprocessing the time sequence data to generate a time sequence sample vector; constructing a deep learning hybrid model, extracting local features through the deep learning hybrid model, and capturing global time sequence dependence; combining a Navier-Stokes equation and a cross entropy to construct a comprehensive loss function; and inputting the processed data into the deep learning hybrid model, and outputting a cooler blockage state classification result. According to the method, early accurate recognition of the blockage state of the cooler can be achieved, the problem of response lag of a traditional method is solved, early warning can be given out in the early stage of blockage, the blockage type is recognized in advance, and non-planned shutdown is avoided.

The invention relates to the technical field of hydroelectric generation, in particular to an impulse turbine, a water bucket and a mortise and tenon joint structure for the water bucket and a hub. The water bucket comprises water bucket blades and tenons arranged at the roots of the blades; the shape of the tenon is configured to be movably assembled with a mortise formed in a hub of the water turbine in a fit clearance mode. According to the structure, a movable assembly mode with a fit clearance can be realized, and the water bucket can generate limited displacement in a gradual change clearance under different jet flow impact load conditions, so that the original traditional rigid connection is changed into flexible movable connection. The water bucket can be reliably connected with the hub without depending on welding or bolt fixing, and the common problem that in an original mode, a water head and a hub welding seam are prone to breakage under high-strength water impact force is solved.

The present invention relates to the technical field of air energy power generation, and discloses a composite device integrating air energy power generation with other energy systems, including a compressor, a filter, a heat exchanger, a generator, and an air storage bin. The right side of the compressor is fixedly connected with a filter, the right side of the filter is connected with a heat exchanger through a pipeline, and the lower part of the heat exchanger is fixedly connected with an air storage bin. The present invention can open any set of valves on both sides when the air storage bin is in the intake state through the valves, connecting frames, one-way valves, branch pipes, front brush plates, scrapers, impellers, rotating shafts, bearings, and support rods provided. At this time, water or hot steam can be introduced into the generator for power generation by means of hydropower and thermal power generation. At the same time, after the medium enters the middle part of the main air intake pipe, it will also drive the impeller to rotate, and enable the scraper and the front brush plate to clean the one-way valve to prevent residual impurities in the process of hydropower and thermal power generation from affecting subsequent air energy power generation.

The invention discloses a water turbine blade coating binding force evaluation method and device, and relates to the technical field of hydroelectric generation. The method comprises the following steps: synchronously acquiring multi-modal nondestructive testing data of a coating area of a water turbine blade to be evaluated; inputting the multi-modal nondestructive testing data into the coating binding force prediction model for binding force prediction and integration to obtain a coating binding force spatial distribution diagram; the coating binding force spatial distribution diagram is input into a high-fidelity digital twin body for coupling simulation and life analysis, and a coating remaining life distribution diagram is obtained; inputting the coating binding force spatial distribution diagram and the coating residual life distribution diagram into an intelligent maintenance decision model for decision generation to obtain a blade maintenance decision; and carrying out visual display on the coating binding force spatial distribution diagram and the coating residual life distribution diagram, and generating a blade coating binding force evaluation report. The problems of low evaluation precision, single information dimension and disjunction between evaluation and decision in the prior art are solved.

The invention discloses a green and low-carbon constructed wetland thermal insulation system capable of realizing intelligent control. The system comprises a modular wetland unit, a hydroelectric generation module, a thermal insulation heating module, an intelligent control module and an energy storage and standby power supply module, the modularized wetland unit comprises a modularized shell as well as a plant covering layer, a water inlet layer, a wetland bed layer and a water outlet layer which are positioned in the shell and are sequentially arranged from top to bottom; the hydroelectric generation module is mounted on one side of the modularized wetland unit and comprises a water power module shell and a turbine pipeline type hydroelectric generator; electric energy output by the turbine pipeline type hydroelectric generator is supplied to the heat preservation heating module or stored in the energy storage and standby power supply module for standby application; the heat preservation heating module comprises a heat conduction layer arranged at the bottom of the modular shell and located below the water outlet layer, and an electric heating plate located below the heat conduction layer. The intelligent control module is used for analyzing the running state of the wetland in real time and dynamically optimizing the power generation and heating modes. The energy consumption can be reduced, and efficient and stable operation can be achieved.

The invention relates to the technical field of hydroelectric generation, and provides a dust collector for hydroelectric generator braking and a using method thereof.The dust collector comprises a shell, a partition plate is arranged in the shell, and the partition plate divides the inner space of the shell into a negative pressure cavity and a dust collecting cavity below the negative pressure cavity; a drainage fan used for enabling the negative pressure chamber to be in a negative pressure state during working is arranged at the top of the negative pressure chamber, and a dust suction pipe used for guiding dust generated during working of the hydraulic generator brake into the dust collection chamber is arranged on one side of the bottom of the shell; when the airflow reaches the top of the flow guide component, the airflow enters and spirally enters a conical cavity in the lower end of the main body through a top opening of a first flow channel, then enters and spirally enters an upper flow guide cover through a bottom opening of a second flow channel, and the airflow circulates in a roundabout mode in the first flow channel and the second flow channel of the flow guide component, so that the circulation path of the airflow is further prolonged; therefore, the heat absorption efficiency of the heat conduction plate is improved.

The invention relates to the technical field of hydroelectric generation, and provides a low-energy-consumption water circulation power generation device which comprises a water circulation power generation device body, the water circulation power generation device body comprises a water circulation assembly and a power generation assembly, the water circulation assembly is used for making water flow circularly flow, and the power generation assembly is used for generating power through the circulating water flow; the water circulation assembly comprises an energy storage water tank, a high-level water tank and a plurality of groups of water return parts; each group of water return part comprises a water turbine pump, a tail water tank, a hydraulic ram, a high-pressure tank and a water lifting tank; water flow flowing out of the high-position water tank can completely flow back to the high-position water tank through acting of the water turbine pump, the water lifting tank and the water suction pump, and water circulation operation is completed; due to the fact that only the water suction pump is needed for water lifting, external energy is not needed for driving, energy consumption needed by water circulation is extremely low, the water flow generator can generate electricity in the water circulation process to be used by the water turbine pump, and energy consumption is further reduced.

The invention discloses an axial-flow type constant-rotating-speed power output device for a river channel and a hydroelectric generating set, and belongs to the technical field of hydroelectric generation. An axial-flow type constant-rotating-speed power output device for a river channel comprises a constant-speed adjusting assembly and an axial-flow driving assembly which are connected with each other. And a first output shaft of the axial flow driving assembly is connected with the constant-speed adjusting assembly. And the end part of a second output shaft of the constant-speed adjusting assembly is arranged outside the speed adjusting box body in a penetrating manner and is connected with a third connecting flange. A hydroelectric generating set comprises a generator, and the power input end of the generator is connected with a third connecting flange. The self-adaptive constant-speed power output device can be self-adaptive to river water flow changes to achieve constant-speed power output, meanwhile, the problems of impurity blockage and mechanical loss are solved, and finally stable and efficient operation of a generator set is guaranteed.

The invention relates to the technical field of hydroelectric generation, in particular to a method for determining distribution parameters of an impulse turbine, a water bucket and a pin column. The water bucket is of a double-bowl-shaped structure which is symmetrical along the water diversion blade, the water bucket is provided with an upstream face used for bearing water flow impact and a downstream face opposite to the upstream face, a plurality of pin columns are embedded in the downstream face in the normal direction of the downstream face, and the ends of the pin columns are matched with the surface of the upstream face to form a continuous smooth curved face of the upstream face. Under the conditions of high water head and sediment, deformation and cracking of the bucket and even damage of bucket breakage are avoided, and the service life of the bucket is prolonged.

The utility model relates to the technical field of hydroelectric generation, in particular to a hydroelectric generation device which comprises two reinforced concrete walls and a frame, lifting mechanisms connected with the frame are arranged on the reinforced concrete walls, and a power mechanism, an acceleration mechanism and a generator are arranged on the frame. The power mechanism comprises a water wheel shaft and water wheel blades, the water wheel shaft is rotationally arranged on the frame, the water wheel blades are annularly distributed on the water wheel shaft, and a first triangular belt wheel is arranged at one end of the water wheel shaft. The acceleration mechanism comprises an acceleration wheel shaft and a triangular belt wheel III, the acceleration wheel shaft is rotationally arranged on the frame, the triangular belt wheel III is fixedly arranged on the acceleration wheel shaft in a sleeving manner, and a triangular belt wheel II is arranged at one end of the acceleration wheel shaft; the second triangular belt wheel and the first triangular belt wheel are sleeved with a first triangular belt. The height of the hydroelectric power generation equipment can be adjusted, and it is guaranteed that water flow can drive the blades to rotate so that the power generator can operate to generate power; and the power generation efficiency is effectively improved.

The invention relates to the technical field of hydroelectric generation, and discloses a pump turbine runner parameter optimization method, device and equipment and a storage medium. According to the method, initial geometric parameters are adjusted, and the adjusted parameters are input into a pre-constructed parameter optimization model; the parameter optimization model outputs the adjusted pressure pulsation amplitude value of the vaneless area corresponding to the geometric parameter until the obtained amplitude value of the pressure pulsation of the vaneless area corresponding to the adjusted geometric parameter is smaller than a preset threshold value, the geometric parameter serves as an optimized target parameter to be stored, and the target parameter is obtained based on an artificial intelligence optimization algorithm. The optimal geometric parameters for inhibiting the pressure pulsation of the vaneless area can be quickly and efficiently found, the optimization efficiency and precision of the geometric parameters are greatly improved, and the time and cost required by a traditional trial and error method are reduced.

The invention discloses a low-energy-consumption hydroelectric generation and irrigation integrated device, and relates to the technical field of hydroelectric generation, the low-energy-consumption hydroelectric generation and irrigation integrated device comprises a power generation assembly, a flow guide assembly, an irrigation assembly and a flow adjusting assembly, irrigation water is guided into the irrigation assembly through the flow guide assembly to achieve irrigation, and the irrigation water flows through the power generation assembly to achieve power generation. According to the low-energy-consumption hydroelectric generation and irrigation integrated device, irrigation water automatically and downwards flows into the spiral pipeline under the action of gravity to drive the power generator to generate power, the advantage that potential energy generated by the irrigation water due to the gravity is converted into kinetic energy is achieved, the inner diameter of the spiral pipeline is wide in the upper portion and narrow in the lower portion, and the irrigation water enters the spiral pipeline after passing through the water inlet pipe; the inner diameter is smaller when the irrigation water flows downwards, the generated pressure is larger, and the height of the spiral pipeline can be adjusted, so that the impact force and the pressure are uniform when the irrigation water impacts the water turbine, the water turbine is protected, and the power generation effect is more stable.

Hydroelectric power generation systems and methods of using such systems are provided. A power generation system includes a reservoir that is at least partially defined by a plurality of precast segments. At least a subset of the precast segments are interconnected via complementary coupling elements. The reservoir is elevated with respect to a fluid supply. The system further includes a flow path providing fluid communication between the reservoir and the fluid supply, a power generation module configured to pump fluid from the fluid supply and into the reservoir via the flow path, and a power conversion module configured to convert kinetic energy of fluid released from the reservoir and travelling through the flow path into electric energy.

The invention relates to a bionic water turbine blade and a three-dimensional structure thereof, which are suitable for an efficient hydroelectric generating set. According to the blade, the hydrodynamic performance is optimized through the outer ridges and the inner ridges which are evenly distributed on the outer contour and the inner contour respectively, the five outer ridges refer to geometric arrangement of fish scales, the stability of a boundary layer is improved, and fluid separation is reduced; the three inner ridges imitate a wing middle shaft framework, and the fluid guiding efficiency is enhanced. The overall shape of the blade simulates the curved surface of a fin, and microstructure bionic optimization is carried out on the surface to reduce water flow resistance and enhance self-cleaning capacity. The blade is made of a high-strength corrosion-resistant alloy material, and a waterproof coating is added on the surface of the blade to adapt to a complex underwater environment. According to the bionic design, the energy capture efficiency, the structural strength and the environmental adaptability of the water turbine are remarkably improved. And by adjusting geometric parameters of the blade and the distribution density of the ridges, different hydroelectric generation working conditions are adapted, and the wide and practical application value is achieved.

The invention discloses a hydroelectric power generation equipment reliability event identification method based on production monitoring data, and the method comprises the steps: firstly constructing a data set for reliability event identification, then carrying out the data preprocessing and data marking of the data in the data set, and obtaining the marked data; generating a start-stop record of the water-turbine generator set according to the marked data, and judging the shutdown type based on the start-stop record of the water-turbine generator set; and finally, generating a reliability event list of the water-turbine generator set based on the event switching mode according to the start-stop record and the maintenance record of the water-turbine generator set. According to the method, electric power system operation data and electric power equipment monitoring data are applied to carry out analysis and evaluation, on the premise that information safety is guaranteed, automatic collection, intelligent analysis, traceable management and transparent supervision of reliability data are achieved, real-time monitoring of the reliability of power generation equipment is achieved, and the accuracy, timeliness and integrity of the reliability data are guaranteed.

The invention relates to the technical field of hydropower optimization scheduling, and discloses a power system optimization scheduling method and device under a hydropower perspective, and the method comprises the steps: carrying out the runoff set probability prediction based on the historical data of multi-energy power supply, and determining the hydroelectric generation prediction data based on the runoff set probability prediction result; predicting a wind and light power generation change trend based on the wind and light resource data and the station output data to obtain wind and light power generation prediction data; predicting regional power demands based on the historical power load data and the power load influence factor data to obtain regional power demands; establishing an electric quantity matching optimization objective function considering marginal cost under a hydroelectric perspective; and performing multi-objective optimization on the electric quantity matching optimization objective function considering the marginal cost under the hydroelectric perspective to obtain a multi-energy electric quantity optimization scheduling strategy of the electric power system. According to the method, the power generation efficiency and income of a hydropower enterprise are improved through hydroelectric power generation optimization scheduling.

The invention relates to a self-adaptive spiral flow power generation device with damping vortex lines, and belongs to the technical field of hydroelectric power generation equipment. The device comprises a base fixedly arranged on a riverbed or seabed base; the stand column is of a cylindrical structure and is arranged in the center of the base, and right-handed damping vortex lines are annularly arranged on the incident flow surface of the stand column at equal intervals; the stand column is connected with a flow guide cover through a bearing platform, and the flow guide cover is of a variable-diameter round pipe structure and is coaxially provided with a flange, a contraction section, a diffusion section and a tail edge in the water flow direction. Threaded fins are arranged on the inner wall of the flow guide cover in the circumferential direction, and the generator is also located in the flow guide cover. A rudder is arranged outside the fairing, the whole rudder is of a wing-shaped structure and comprises a front rudder and tail rudders, all the tail rudders play a synergistic role through a connecting rod mechanism, the geometric attack angle of the fairing is automatically adjusted under the main flow velocity potential difference, the fairing is made to directly face the main flow all the time, and therefore the power generation efficiency and the overall performance of the device are improved. The device is suitable for being applied to water bodies of oceans, inland lakes, reservoirs and parks, and power is generated through water body flowing.

The invention belongs to the technical field of micro-grids, and particularly relates to a distributed micro-grid system and a dispatching control method thereof.The micro-grid system comprises a wind power generation device, a photovoltaic power generation device, a hydroelectric power generation device, a tidal energy power generation device and a diesel engine power generation device; the energy storage equipment comprises a storage battery energy storage device, a super capacitor energy storage device, a flywheel energy storage device and a water electrolysis hydrogen production and fuel cell energy storage device; the water electrolysis hydrogen production and fuel cell energy storage device comprises a water electrolysis device, a hydrogen storage tank and a fuel cell; the water electrolysis device is connected with the alternating current bus through an electrolysis control switch and conveys prepared hydrogen to the hydrogen storage tank for storage, and the hydrogen storage tank is connected to the fuel cell through a hydrogen control valve. A micro-grid energy optimization scheduling problem is described as a Markov decision process, and a WGAIL-based energy optimization scheduling solving algorithm is adopted, so that the stability of a training process is improved, a better strategy can be obtained, and the energy optimization scheduling of the micro-grid can be realized.

The invention solves the problem that when a filter in an oil tank cooling system is replaced, oil flowing needs to be suspended, and relates to the field of oil tank cooling, in particular to a hydroelectric generator oil tank cooling system which comprises a cooling oil tank motor installed on an oil tank tank and used for circularly feeding oil into a generator, and a plate heat exchanger is installed at the top of the oil tank tank. An oil return pipe connected with the generator is arranged above the plate heat exchanger, a filter used for filtering oil liquid in the stage that the oil liquid in the oil return pipe is conveyed into the plate heat exchanger is installed on the oil tank, the filter comprises a support plate installed on the oil tank, and a flow dividing box in butt joint with the oil return pipe is installed on the support plate. Two filtering assemblies are installed at the bottom of the flow dividing box, and a plugging assembly used for guiding backflow oil liquid to flow into one filtering assembly is installed in the flow dividing box. The two filter assemblies are alternately used, replacement and cleaning are facilitated, and meanwhile the system can work uninterruptedly.

The utility model relates to a multi-energy complementary energy system, which comprises a multi-energy power generation part, a multi-energy complementary converter, an energy storage system and a power grid, the multi-energy power generation part comprises a wind driven generator, a photovoltaic array and a hydroelectric generator; the multi-energy complementary converter comprises two AC / DC rectifiers, a photovoltaic MPPT controller, a bidirectional DC / AC inverter and a DC bus, the two AC / DC rectifiers are electrically connected with the wind driven generator and the hydroelectric generator respectively, the photovoltaic MPPT controller is electrically connected with the photovoltaic array, the energy storage system comprises a bidirectional DC / DC module and a super capacitor, and the super capacitor is connected with the DC bus through the bidirectional DC / DC module; the power grid is connected with the direct current bus through the bidirectional DC / AC inverter; when the system is used for supplying power to the electric equipment, energy conservation and emission reduction can be realized, meanwhile, the power operation cost is greatly reduced, and great economic benefits are brought.