110 results about "Energy supplementation" patented technology

The invention discloses a testing device and a testing method of flexible direct-current transmission modular multilevel converter (MMC) converter valve operating. Large current needing to be checked is produced through energy exchange between two groups of valve module submodule capacitors and a load electric reactor, accurate alternating current-direct current overlaying current stress can be obtained through respective adjustment of alternating component amplitude and phase difference of output voltage of two valve modules, and adjusting modes are simple and flexible. A charging source is only used for building working voltage of two sample valve submodules at the beginning of the test, energy supplementation power sources are used for building working voltage of two auxiliary valves at the beginning of the test, only less active loss is supplemented in the test process later, the two energy supplementation power sources respectively share one half of system loss, and requirements for power capacity of a test circuit are greatly lowered. In addition, the two energy supplementation power sources can offset harmonic waves of grid-connected current of the two energy supplementation power sources through difference of connection modes of transformers of the two energy supplementation power sources to a great degree, and harmonic wave pollution to power grids is reduced.

An electrically-powered device, structure and / or component is provided that includes an attached electrical power source in a form of a unique, environmentally-friendly energy harvesting element or component. The energy harvesting component provides a mechanism for generating autonomous renewable energy, or a renewable energy supplement, in the integrated circuit system, structure and / or component. The energy harvesting element includes a first conductor layer, a low work function layer, a dielectric layer, and a second conductor layer that are particularly configured in a manner to promote electron migration from the low work function layer, through the dielectric layer, to the facing surface of the second conductor layer in a manner that develops an electric potential between the first conductor layer and the second conductor layer. The energy harvesting component includes a plurality of energy harvesting elements electrically connected to one another to increase an electrical power output.

The invention discloses a mobile energy supplementation method in a delay-constrained wireless sensor network. The mobile energy supplementation method is used in the wireless sensor network which is composed of multiple sensors, one base station and one mobile node; the access sequence of the mobile node is generated again after each round of data collection and charging tasks; and the mobile node in the new round of tasks traverses nodes in the access sequence for data collection and charging. The method of generating the access sequence of the mobile node comprises the steps of building an optimization target of a maximum specific value of charging energy consumption and mobile energy consumption and a limiting condition thereof; and obtaining the access sequence and residence time of the mobile node at each node in the access sequence by using a heuristic algorithm. According to the mobile energy supplementation method in the delay-constrained wireless sensor network, energy of sensor nodes in the network is supplemented through a wireless charging technology, charging while data collection is realized, and the life cycle of the wireless sensor network is prolonged.

The invention discloses a method for increasing the movement distance of an automatic movement device. The method comprises the following steps that a plurality of energy supply base stations are arranged in advance, and base station position information of each energy supply base station is prestored; the automatic movement device acquires self position information in real time, the distance between the self position information of the automatic movement device and the base station position information of each energy supply base station is calculated, and the nearest energy supply base station is determined; the automatic movement device detects the residual energy of the automatic movement device in real time, energy needed by movement of the automatic movement device to the nearest energy supply base station is calculated, and an energy warning value is determined, wherein the energy warning value represents the energy needed by movement of the automatic movement device to the nearest energy supply base station; whether the value of the residual energy is equal to the energy warning value or not is judged, if yes, the automatic movement device is controlled to move to the nearest energy supply base station to conduct energy filling. According to the method, energy supplementation can be timely obtained by the automatic movement device, and the movement distance of the automatic movement device can be infinitely increased to meet the requirement of the automatic movement device for long-distance movement.

An electrically-powered device, structure and / or component is provided that includes an attached electrical power source in a form of a unique, environmentally-friendly energy harvesting element or component. The energy harvesting component provides a mechanism for generating autonomous renewable energy, or a renewable energy supplement, in the integrated circuit system, structure and / or component. The energy harvesting element includes a first conductor layer, a low work function layer, a dielectric layer, and a second conductor layer that are particularly configured in a manner to promote electron migration from the low work function layer, through the dielectric layer, to the facing surface of the second conductor layer in a manner that develops an electric potential between the first conductor layer and the second conductor layer. The energy harvesting component includes a plurality of energy harvesting elements electrically connected to one another to increase an electrical power output.

The invention provides a clearing device for floating green algae in the Lake Taihu, and relates to the field of environmental protection equipment. The clearing device is composed of movable float bowls, high-pressure air cylinders, an air storage box, air spray pipes, a solar panel, a motor, an axial flow pump, an impeller, meshes, a honeycomb type adsorption sponge and adsorption resin. A first power system is composed of the solar panel, the motor and the axial flow pump. A second power system is composed of the movable float bowls, the high-pressure air cylinders, the air storage box and the air spray pipes. A clearing system is composed of the meshes, the honeycomb type adsorption sponge and the adsorption resin. In sunny days, solar energy is converted into electric energy through the solar panel so that the motor and the axial flow pump can work; and in rainy days, wave energy is concentrated in the air storage box through the movable float bowls and the high-pressure air cylinders, and the device is driven by the air spray pipes to work. The device can clear away the floating green algae on the lake surface and can filter out in-lake green algae on a shallow water layer. Power energy of the device comes from solar energy and lake surface wave energy, and is completely environment-friendly, no floating oil pollution is generated to the lake surface, manual energy supplementation is not needed, and the clearing device is small in size, simple in structure, convenient to maintain, remarkable in alga removal and not high in manufacturing cost.

Embodiments of the invention provide an electric vehicle battery replacement method and a related device. The method comprises the steps of obtaining reserved battery replacement time and a reserved battery replacement place according to received reserved battery replacement information sent by a first terminal, wherein the reserved battery replacement information is used for indicating battery replacement information, the reserved battery replacement time and the reserved battery replacement place of an electric vehicle comprising the first terminal; according to the reserved battery replacement time and the reserved battery replacement place, generating corresponding battery replacement notification information, wherein the battery replacement notification information is used for indicating the reserved battery replacement time and the reserved battery replacement place; and sending the battery replacement notification information to a second terminal. According to the electric vehicle battery replacement method provided by the embodiment of the invention, a battery of the electric vehicle can be replaced at the reserved battery replacement time and the reserved battery replacement place; a mode of supplementing electric energy for the battery of the electric vehicle is flexible; a vehicle owner does not need to wait in line and the battery replacement speed is high; and theelectric energy supplementation process is short in time.

The invention relates to an automatic clutch elastic driving device for supplementing energy to a flywheel battery and a use method of the automatic clutch elastic driving device. The automatic clutch elastic driving device is characterized in that an elastic driving mechanism is additionally arranged outside a vacuum box, utilizes elastic force potential energy to drive a flywheel to rotate and comprises a belt wheel with a magnet. An inner driving mechanism is additionally arranged in the vacuum box and comprises a magnetic actuating wheel, a centrifugal mechanism and a frictional concave wheel, wherein the magnet of the belt wheel is coupled with the magnetic actuating wheel in the vacuum box through a magnetic field so that the belt wheel can drive the magnetic actuating wheel in the vacuum box and the flywheel to rotate, and the flywheel stores kinetic energy. According to the use method of the automatic clutch elastic driving device, when a traveler camps out in the fields, the elastic driving device is installed on the ground through a piling method, and the elastic force potential energy of an elastic rope in the elastic driving device is used for supplementing kinetic energy to the flywheel battery. After energy supplementation is finished, the centrifugal mechanism can automatically separate a driving part from the flywheel, kinetic energy loss of the flywheel is avoided, and the flywheel battery supplemented with the energy can be used for supplying power to a camping process and the trip in the next day.

The invention discloses an energy distribution system and method used for agricultural machinery, an energy supplementation point, and a management system thereof. The energy distribution system comprises a distribution unit and an agricultural machinery monitoring unit capable of being communicably connected to the distribution unit, wherein the agricultural machinery monitoring unit obtains thereal-time state of the agricultural machinery in a way that the state of the agricultural machinery is monitored in real time, and the distribution unit selects an opportunity for the agricultural machinery to distribute energy according to the real-time state of the agricultural machinery, and distributes the energy to the agricultural machinery.

The invention discloses a steady-state energy-supplementation control strategy of hybrid high voltage DC circuit breaker. According to the invention, through a reasonable switch action time sequence, capacitor voltage of an improved full-bridge sub module can be made to fluctuate within a manually set threshold value range, so that energy stability is ensured and influence on power supply reliability of a drive circuit of the full-bridge sub module due to violent fluctuation of the capacitor voltage is prevented. Besides, since a load transfer switch and a main circuit breaker get energy through capacitors of sub modules of themselves respectively, external power supply is not needed, so that problems of insulation of voltage resistance in projects are avoided; design, manufacture and construction difficulties are reduced; and application of the circuit breaker typology in a high voltage DC power grid is facilitated.

The invention relates to an electrified detection platform for a rail bound robot, comprises a rail and a rail bound robot arranged on the rail, wherein a rest station or a front platform computer for rest, data reduction, data exchange and energy supplementation of the rail bound robot is arranged at one end or the middle of the rail; the front platform computer is connected with two remote control systems controlled by a remote console; a processor is arranged inside the front platform computer; and eight functional modules are integrated inside the processor. The invention has the benefits that the electrified detection platform for the rail bound robot integrates an infrared imaging and temperature-measuring technology, an ultraviolet light imaging technology and a visual imaging technology, but also uses the integration advantage and the automatic data processing advantage to comprehensively analyze the influences of an external environment, load condition and the like on the equipment and provides more powerful data and technical support for the development of the power.

The difficult problem that a conventional response judgment standard based on a directional oil production well yield curve shape feature is hard to be promoted to analysis on a horizontal well response and a response degree is overcome, two parameters of horizontal well unit length cumulative oil production and unit length daily oil production are introduced, a value-added method with the horizontal well unit length cumulative oil production and the unit length daily oil production through natural energy development in the same reservoir as lower limits, with the horizontal well unit length cumulative oil production and the daily oil production through waterflooding as upper limits and with the unit length cumulative oil production and the unit length daily oil production applied comprehensively is provided, quantitative evaluation on different horizontal well waterflooding energy supplementation response degrees can be realized, and an important basis is provided for optimization of a development technical policy.

The invention relates to a mobile energy supplement method for a wireless sensor and actuator network, and belongs to the research field of prolonging the lifetime of wireless sensor and actuator networks by using a wireless charging technology. The wireless sensor and actuator network has the advantages of perceiving, timely responding to and acting on the environment and the like. However, bothof the sensor and the actuator serving as core components of the network face the problem of energy constraint, which seriously restricts the lifetime of the network. Current work only considers the energy supplement problem of wireless sensor networks, but has not yet considered the energy supplement problem of wireless sensor and actuator networks that incorporate actuators with mobile and executive functions. The method well adapts to autonomous motion and long charging time of the actuators in the wireless sensor and actuator networks and high dynamic energy consumption characteristic caused in response to emergencies, and can ensure the energy supply of the actuators in the networks, simultaneously reduce the failure rates of sensor nodes as much as possible and maintain the long-termcontinuous operation of the entire networks.

The invention discloses a storage device capable of serving as a standby power supply for an unmanned aerial vehicle. The storage device comprises a storage tank, a first storage box and gears, wherein a storage battery box is mounted on the outer side of the storage tank and connected with a protective cover through a connecting shaft; a solar panel is fixedly mounted on the protective cover; a groove is formed in the storage battery box; a telescopic rod is arranged in the groove; a connecting wire winds the connecting shaft, passes through a pulley and is connected with the connecting shaft; a charging slot and connecting springs are mounted on the inner side of the storage tank; and the storage tank is connected with a baseplate through the connecting springs. The storage device can serve as the standby power supply of the unmanned aerial vehicle while playing a storage role, and facilitates power supply for the unmanned aerial vehicle at an outside flight, so that the cruising ability of the unmanned aerial vehicle is indirectly improved, and searching for a set position for energy supplementation is not needed.

The invention discloses a novel composite of natural plant energy replenisher, and discloses a recipe and function application of the composite and a food and beverage type recipe and producing technology of the composite. The novel composite is a pure natural plant product, and main components of the novel composite are endive extractive and burdock extractive. The endive extractive and burdock extractive are effective active ingredients which are extracted from a natural green plant endive and a natural green plant burdock with modern biological extraction technology. The composite is produced through the following method: the main components are the endive extractive and the burdock extractive, the mixing ratio of the two extractives is that the endive extractive to the burdock extractive is 1-10 to 10-1. Preferably, the endive extractive to the burdock extractive is 3-1 to 2-1. Liquorice xxtractive, green tea extractive, vitamin and the like are added, so that a scientific composition is carried out, and the novel compound composite is produced. The novel compound composite has a special function in application in terms of nutrition in sport and sports performance efficiency, and especially has prominent functions on aspects of concentration, energy and mental stamina of an athlete.

The invention relates to an electric mobile charging vehicle power supply method which is applied to a mobile charging vehicle including a power electric power supply system and an energy supplementation electric power supply system. Switching of electric power supply batteries is conducted through the method based on a selected working mode. Working modes comprise the range increasing mode and the energy increasing mode. In the energy increasing mode, switching of the electric power supply batteries is that charging electric energy is provided for an exterior electric vehicle through the power batteries of the mobile charging vehicle; and in the range increasing mode, switching of the power supply batteries is that electric energy is provided for a load of the mobile charging vehicle through the energy loading batteries. The invention further provides an electric mobile charging vehicle service capacity calculation method. By adoption of the electric mobile charging vehicle power supply method and service capacity calculation method, mutual use of the two kinds of electric power supply batteries is achieved, tradeoff setting between the service electric quantity and the service radius can be freely achieved, and flexibility of service capacity configuration of the mobile charging vehicle is improved.

The invention relates to a control system and method used for an AUV underwater butt joint device. The system comprises a communication protocol converter, a switchboard, a lower computer controller,an automatic charging circuit, a control management circuit, a power-switching circuit, sensors and a transmission mechanism which are located underwater, and a control computer, a high-power direct current power source, a switchboard and the like which are arranged overwater. An underwater part is sealed in an electronic cabin and provided with an external interface, and functions that the transmission mechanism is controlled, feedback information of the sensors is acquired, an AUV battery pack is charged, and data are downloaded are achieved. An overwater part is connected with the electronic cabin through a cable, and functions of monitoring, data storage, command giving and the like are finished. The system can be matched with an AUV to conduct autonomous control to finish the underwater butt joint process, the state of the AUV can be judged in real time according to the feedback information of each sensor, and the butt joint process is manually controlled to be finished. Therefore, energy supplementation and data acquisition of the AUV are finished underwater, and the inconvenience caused by repeated release and recovery is avoided.

The invention relates to an automatic clutch elastic driving device for supplementing energy to a flywheel battery. The automatic clutch elastic driving device for supplementing energy to the flywheel battery is characterized in that an elastic driving mechanism is additionally arranged outside a vacuum box, a flywheel is driven by elastic force potential energy to rotate, and the elastic driving mechanism comprises a belt wheel with a magnet. An inner driving mechanism is additionally arranged in the vacuum box and comprises a magnetic actuating wheel, a centrifugal mechanism and a frictional concave wheel, wherein the magnet of the belt wheel is coupled with the magnetic actuating wheel in the vacuum box through a magnetic field so that the belt wheel can drive the magnetic actuating wheel in the vacuum box and the flywheel to rotate, and the flywheel stores kinetic energy. According to the use method of the automatic clutch elastic driving device for supplementing energy to the flywheel battery, when a traveler camps out in the fields, the elastic driving device is installed on the ground through a piling method, and the elastic force potential energy of an elastic rope in the elastic driving device is used for supplementing kinetic energy to the flywheel battery. After energy supplementation is finished, the centrifugal mechanism can automatically separate a driving part from the flywheel, kinetic energy loss of the flywheel is avoided, and the flywheel battery supplemented with the energy can be used for supplying power to a camping process and the trip in the next day.

The invention aims at providing a practical equalizing charge charging device which is different from most of equalized charging methods adopted at present. According to the equalizing charge principle of an incremental equalizing charge battery pack charging device, when a main charging loop normally conducts charging, all single batteries are patrolled, the battery which is least charged is found, the incremental charging is conducted on the battery, the charging speed of the battery is increased, and the equalizing charge of all the single batteries is achieved. By means of the charging method, the problem of the unnecessary electric energy waste caused by an equalized energy consumption type charging method and the problem that an equalized energy consumption type charging circuit is complex and hard to control are solved. In order to solve the problem that due to the fact that wrong connection exists in an energy supplementation type gating switch array, short-circuit accidents are caused, incremental auxiliary charging current switching is conducted through a current circuit changer structure, it is ensured that only one battery is selected and connected to an incremental current generator under all conditions, and no short circuits between batteries can be caused. In order to better conduct auxiliary incremental charging on the batteries, a voltage source auxiliary charging power supply which is used at present is replaced with an auxiliary current source.

The invention relates to an energy supplementing control system and a data interaction unit for a mobile charging vehicle. The energy supplementing control system comprises a master control management subsystem and an energy supplementing subsystem, wherein the master control management subsystem comprises an energy supplementing management module, an energy supplementing resource management module and the data interaction unit; the data interaction unit is connected with the master control management subsystem and the energy supplementing subsystem to realize data interaction among all modules of the two subsystems; the energy supplementing subsystem comprises an energy supplementing bridging module; and the energy supplementing bridging module is used for bridging with the energy supplementing resource management module to control the energy supplementation of vehicles to be energy-supplemented according to an energy supplementing instruction of the energy supplementing management module. The energy supplementing control system and the data interaction unit have the advantages that the integration of the real-time performance of the mobile charging control and the effectiveness of management is realized, and flexible, reliable and convenient charging services provided by the mobile charging vehicle are guaranteed.

The invention provides an energy supplementing method and a management system for a battery replacement type hybrid power vehicle. The vehicle is provided with a battery replacement type driving system and a range extending type driving system which can be rapidly switched and independently serve as a main power system. The range extending type driving system comprises a range extender and a driving motor. The battery replacement type driving system comprises a quick-change battery and a driving motor, and the quick-change battery can be quickly disassembled and replaced in a battery replacement station. The method comprises the steps that when a user starts a vehicle, the real-time position of the vehicle is obtained, the user is prompted to select long-distance or short-distance drivingor set a destination, and the battery replacement type driving system and / or a range extending type driving system are / is intelligently switched according to the selection of the user. According to the invention, the battery replacement type driving system and / or the range extending type driving system can be intelligently switched according to the vehicle information and the distribution of the peripheral battery replacement stations and the fuel supplementation stations, and the corresponding energy supplementation scheme is determined, so that the vehicle can normally run to the destinationand normally perform energy supplementation, and the normal use of the vehicle is ensured.

The invention provides a red bean ice sucker and a preparation method thereof. The red bean ice sucker comprises the following raw materials in parts by weight based on 100 parts: 10-15 parts of red beans, 2-4 parts of starch, 1-5 parts of white sugar, 3-5 parts of honey, 1-2 parts of vanillin, 3-5 parts of coconut milk and the balance being water. The ice sucker is easy and convenient in preparation process, is suitable for being prepared in general families, has the effects of clearing heat and toxins, tonifying spleen and stomach, promoting vital energy circulation, relieving restlessness and the like, is sanitary, is good in mouth feel when being eaten, and is a good choice of heatstroke prevention, cooling and physical energy supplementation.

The invention provides an energy storage type cooking stove and a heating method. The heating method comprises the steps of water feeding, energy storage, cooking, energy supplementation and storage and the like and can keep more constant heating temperature and efficient heating efficiency. The energy storage type cooking stove comprises an energy storage type steam engine, wherein a first steam port and a second steam port are formed in the energy storage type steam engine, the first steam port is communicated with the bottom of a first cooker through a first steam valve, and the second steam port is communicated with the bottom of a second cooker through a second steam valve. Steam formed after water inside the energy storage type steam engine is heated through a heater is stored in the energy storage type steam engine and flows into the first cooker and / or the second cooker through the first steam port and the second steam port. The energy storage type cooking stove can improve the heating speed and shorten the heating time and can further greatly improve food quality.

The invention relates to the technical field of vehicle energy supplementation control, particularly provides a vehicle energy supplementation intention prediction method and device and a vehicle energy supplementation system, and aims to solve the technical problem of how to simplify a vehicle energy supplementation operation process. For this purpose, according to the method provided by the invention, the energy supplementing intention of the vehicle is predicted according to the specific monitoring object in a vehicle energy supplementing area and the change state of the generated specificoperation behavior within a period of time; therefore, the energy supplementing device is controlled to execute the energy supplementing operation according to the predicted energy supplementing intention, a vehicle user does not need to open a charging verification entrance such as a mobile phone APP or a small program for identity authentication, non-inductive energy supplementing is achieved for the vehicle user, and the defect that in the prior art, charging and other vehicle energy supplementing modes are tedious in operation is overcome.

The invention discloses a semi-automatic high-speed heavy-load orbit and arrangement of a wharf loading and discharge system, and relates to the technical field of loading and discharge of port containers. The semi-automatic high-speed heavy-load orbit comprises a guide rail, wherein a guide clamping groove, contact lead cradle heads distributed on the two sides of the guide clamping groove, and conventional road surfaces distributed on the two sides of the contact lead cradle heads are arranged on the guide rail; an inertia guide part is arranged inside the guide clamping groove; the other end of the inertia guide part is connected on an AGV in a clamping manner; energization conducting wires are arranged on the AGV; and the energization conducting wires are connected on the contact lead cradle heads. According to the semi-automatic high-speed heavy-load orbit and arrangement of the wharf loading and discharge system provided by the invention, the operation of the AGV is stable, the energy consumption is low, the energy supplementation is convenient, and the safe operation level and capacity are high.

Disclosed is an air battery equipped with rotary bearded zinc electrodes and star-like air electrodes. The air battery comprises a battery reaction tank, an air electrode outgoing line and a zinc electrode outgoing line; the air battery is characterized in that the upper opening of the battery reaction tank is an opening and provided with a movable reaction tank cover; the side surfaces of the battery reaction tank are star-like and formed by the air electrodes in a surrounding manner; a conical body is arranged at the bottom of the battery reaction tank; a zinc oxide discharging opening is formed in the lower end of the conical body; and the interior of the battery reaction tank is full of an electrolyte and provided with the zinc electrodes. The air battery has the beneficial effects as follows: by virtue of the unique battery reaction tank configuration and the zinc electrodes, the zinc air battery can realize energy supplementation as a common internal combustion engine, so that large-scale commercial application of the battery can be possible; and the air battery is economic and simple in manufacturing method, and large-scale production can be realized easily, so that air battery has wide application prospect in the battery manufacturing field.

The invention relates to a grid-connected photovoltaic alternating current voltage stabilizer using photovoltaic electricity for active energy supplementation. The grid-connected photovoltaic alternating current voltage stabilizer comprises a solar panel, a direct current conversion circuit, an input industrial frequency voltage transformer, an inverter circuit, an output industrial frequency isolation voltage transformer and an anti-thunder SPD, wherein two taps of the input industrial frequency voltage transformer and the output industrial frequency isolation voltage transformer are respectively connected with first and second tap shunt control switches; the control []signal input ends of the two tap shunt control switches are respectively connected onto an output port of a comparison control circuit; the input end of the comparison control circuit is connected at the output end of a voltage amplitude phase monitoring circuit; the input port of the voltage amplitude phase monitoringcircuit is connected onto the primary end of the output industrial frequency isolation voltage transformer; the anti-thunder SPD is connected in parallel onto a secondary electrode end of the output industrial frequency isolation voltage transformer. By automatically changing the input industrial frequency voltage or the output alternating current voltage, an electric network is charged at the ultralow electric network voltage; an inside circuit is used for realizing the electric complete isolation protection with the external electric network; the continuous work in a thunderstorm period is ensured.

The invention relates to the technical field of PVC pipe connecting pieces, and specifically relates to an anti-blocking filtering connecting piece for PVC pipe connection. A filtering part is vertically arranged on the upper portion of a shell in a penetrating mode, a remote feedback system is arranged on the front side of the shell, and a self-electricity-generating mechanism extending into the filtering part is installed on the rear side of the shell. The anti-blocking filtering connecting piece is novel in design and simple in structure, the filtering part can adsorb and isolate impurities and bleaching powder in water, cleanliness of water is guaranteed, disassembly, assembly and cleaning are convenient and rapid, the maintenance difficulty is reduced, and the remote feedback system can detect the passing flow of water flow in real time and transmit monitoring data to a monitoring terminal. Supervisors can know the latest data conveniently so as to take corresponding measures in time, smoothness of the water flow is guaranteed, practicability is improved, the self-electricity-generating mechanism achieves automatic energy supplementation through impact of the water flow, self-sufficiency is achieved, and cost is low.

The invention discloses a weak ocean current power system for energy supplement for a deep sea subsurface buoy. The weak ocean current power system comprises an impeller structure and a power generation structure, wherein the impeller structure comprises a central shaft, a first flow guide cover, a second flow guide cover and an impeller hub; the first flow guide cover and the second flow guide cover are fixed to the central shaft; the impeller hub is positioned between the first flow guide cover and the second flow guide cover and is rotatably fixed to the central shaft and rotates around thecentral shaft; a plurality of blades are arranged on the impeller hub; the impeller hub faces one side of the first flow guide cover and is provided with a ratchet wheel; the power generation structure comprises at least one pendulum hammer and at least one coil; the coil is fixed to the inner side of the first flow guide cover; the pendulum hammer is rotatably fixed to the central shaft and rotates around the central shaft; the pendulum hammer comprises a swing arm and a hammer head; the hammer head is provided with magnetic poles; and the swing arm is provided with pawls. The weak ocean current power system is suitable for the environment with low flow velocity in a deep sea, provides low-power energy supplement application for observation equipment, detection equipment or communicationequipment, and has the characteristics of self-starting, high reliability and high absorption and conversion efficiency.