218results about How to "Guaranteed power generation" patented technology

A method for breeding beef cattle and mutton sheep standardly on a large scale through photovoltaic facilities includes the four parts that first, a photovoltaic facility greenhouse is built, maize seedlings or high-quality green forage grass Zea mexicana is produced throughout the year to be used as green fodder of beef cattle and mutton sheep; second, the beef cattle and the mutton sheep are bred and bio-organic fertilizer is produced standardly on a large scale through the photovoltaic facility greenhouse; third, photovoltaic power generation is performed for self use, and excessive electricity is connected into the state grid; fourth, a beef cattle and mutton sheep traceable system is built, and foods are made safe and sanitary. Through the method, not only can solar resources be effectively utilized to output clean and green energy, but also efficient planting and breeding can be achieved, by-products are processed into organic fertilizer, and a new path is provided for green agricultural production. Because a full-frame high-standard support system is adopted for the photovoltaic agricultural greenhouse and photovoltaic modules are arranged on the greenhouse, the space of the greenhouse can be effectively utilized, power utilized in the greenhouse can be supplied through a photovoltaic power station, and equivalently, stereoscopic production is formed on the land with the same area.

The invention discloses a stabilizing device, a floating foundation and an offshore wind power generator. The stabilizing device comprises a U-shaped water chamber, wherein the U-shaped water chamber comprises a first hollow upright column, a second hollow upright column and a bottom buoyancy tank connected between the bottoms of the two upright columns, the first upright column and the second upright columns are communicated with the bottom buoyancy tank, and the top of the first upright column and the top of the second upright column are communicated through an air communication pipeline. The floating foundation is at least provided with a first upright column, a second upright column and a third upright column, and comprises at least one stabilizing device. The offshore wind power generator comprises the floating foundation, a mooring rope, a tower, vanes and a wind power generator set, wherein the mooring rope is connected with the outer edge of the floating foundation and is anchored to the seabed, the bottom end of the tower is arranged on the floating foundation, and the vanes and the wind power generator set are arranged on the top of the tower. By means of the stabilizing device, stabilizing of a floating fan can be simply and effectively achieved through a double-resonance principle.

The invention discloses an ecological-power generation dynamic mutual feedback regulation method for a cascade reservoir group. The method comprises: a generating capacity and an ecological assurancerate are used as objective functions of an ecological-power generation mutual feedback regulation model of a cascade reservoir group, wherein a constraint set of the ecological-power generation mutualfeedback regulation model of the cascade reservoir group includes a water balance equation, an inflow flow balance equation, an outflow flow balance equation, a water storage limit constraint, a power generation flow constraint, an outbound flow constraint and a power station output constraint and the ecological assurance rate is obtained by meeting a space-time proportion of four ecological standards including a water quality demand, a cutoff water demand, a sand flushing water demand, and an ecological water demand by a water flow condition; and on the basis of an improved non-domination sorting genetic algorithm, optimal outflow floes of all reservoirs at all periods are obtained from the ecological-power generation mutual feedback regulation model of the cascade reservoir group. According to the invention, the generating capacity and the ecological assurance rate are used as objective functions; and the influence on the ecological environment is reduced while the maximum reservoirpower generation amount is ensured.

The invention relates to a solar chimney power generation system combining the photovoltaic technology, comprising a solar chimney and a solar thermal collector, wherein, the ceiling of the solar thermal collector is stuck with a thin film solar PV panel; or the bottom surface of the solar thermal collector is paved with the solar panel. The thin film solar PV panel stuck on the ceiling of the solar thermal collector is non-light tight. The solar panel paved on the bottom surface of the solar thermal collector is an ordinary monocrystalline silicon solar PV panel. The system can take full advantage of the light energy and the heat energy of the solar energy, after the solar panel converts the light energy of the solar energy into the electrical energy, the remaining solar energy is used for heating the air entering the solar thermal collector in the form of heat energy; the PV panel can be cooled perfectly to guarantee the efficiency and the generated output of the PV power generation system; the system raises the rate of utilization of the solar chimney power generation system on the solar energy and raises the generating efficiency of the solar chimney power generation system by about 30 percents.

The invention discloses a device and a method for improving large reservoir stratified low-temperature water, aims to improve the problem of low temperature of discharged low-temperature water of an established hydropower station, and provides a device for improving the large reservoir stratified low-temperature water. The device comprises a water temperature control curtain which is arranged in a reservoir and mainly comprises a water retaining net, wherein the vertically arranged water temperature control curtain is arranged 600-1,500 m in front of a reservoir dam and is perpendicular to the extension direction of a water intake for discharge in front of the dam; the top of the water temperature control curtain is positioned below a reservoir thermocline, and the bottom of the water temperature control curtain is fixedly arranged at the bottom of the reservoir, so that the surface water and the thermocline water of the reservoir enter the water intake through the top end of the water temperature control curtain; the low-temperature water at the bottom of the reservoir is retained at the water intake by the water temperature control curtain. The temperature of the discharged water of the established power station can be effectively raised by 3-5 DEG C on the premise that the operation situation of the power station is not affected.

The invention provides a processing method and system for communication flash breakdown of a wind driven generator. The processing method comprises the following steps that a variable-pitch controllerreceives a generator rotating speed value sent by a main controller through a first communication line; when the variable-pitch controller is used for determining that communication flash breakdown is generated on a second communication line between the variable-pitch controller and the main controller, a pitch adjustment control command is generated according to the rotation speed value of the generator, and pitch adjustment control is carried out according to the pitch adjustment control command. According to the processing method and system, when communication flash breakdown is generatedon the second communication line between the variable-pitch controller and the main controller, the variable-pitch controller is ensured to receive the accurate generator rotating speed value, pitch adjustment control is continued so that the communication flash breakdown crossing function can be realized in a guaranteed mode, furthermore, a wind generating set is prevented from being stopped, malfunctions of a variable-pitch system are avoided, the generating capacity of the wind driven generator is guaranteed, the wind driven generator is prevented from being stopped due to frequent failures, and the utilization rate of the wind driven generator is improved.

The invention discloses a method for evaluating the new energy acceptance capacity of a grid-connected point by comprehensively considering the stability characteristic, and belongs to the technical field of automation of power systems. The influences of wind power generation variability and instability on a power grid, an external load level and the change condition thereof are combined; a multi-machine system is equivalent to a single-machine infinite bus system through an EEAC method by employing a static stability constraint, reactive power control and a transient constraint of the power system as conditions; the stability margin and the sampling yield are calculated; and the capability of connecting a wind power station of considering a transient stability constraint to the power grid to the maximum extent is evaluated by employing the specified range of the sampling yield as an index. By the method, the safe and stable operation level of the wind power station can be improved; the generating capacity of the wind power station is effectively ensured; and the benefits of energy conservation and emission reduction are improved.

The invention provides an environment-friendly water surface hydroelectric power plant which comprises iron tower supports, a water wheel supported to the tops of the iron tower supports through a water wheel centre shaft, a reduction box and an electric generator. The water wheel is evenly provided with a plurality of groove-type blades, the two ends of the water wheel centre shaft are supported to the tops of the corresponding iron tower supports through lifting mechanisms and move up and down to adjust the height of the water wheel, one end of the water wheel center shaft is connected with the input end of the reduction box through a crank type transmission device. According to the environment-friendly water surface hydroelectric power plant, the groove-type blades are adopted and are in holding type contact with water flow, stress is concentrated, the fluid potential energy can be received to the maximum degree, the rotation twisting force of the water wheel and the water wheel center shaft is increased, and the aims of energy conservation and efficiency improvement are achieved; in addition, the water wheel center shaft and the water wheel of the environment-friendly water surface hydroelectric power plant move up and down through the lifting mechanisms, the end of the water wheel center shaft outputs power through the crank type transmission device, normal transmission of power at different heights of the water wheel center shaft is guaranteed, impact damage of floating objects in a river on the blades during large waves and fast flow is avoided, and the electric generation capacity and the viability of the power plant under the extreme hydrologic condition are guaranteed.

The invention discloses a thermal-radiation internal-circulation power generation device, which is mainly composed of a solar energy tube (5), three high-position expansion grooves (6-1, 6-2 and 6-3), a low-position oil storage tank (25), three circulation pumps (8-1, 8-2 and 8-3), an energy storage tank (7), a constant temperature furnace (12), a water coagulation expansion tank (10), a high pressure pour plug pump (13), a high pressure atomizing device (14), a steam generator (15), a steam storage tank (18), a turbine (19), a generator (20), a circulation steam pipeline (21), a steam coagulator (22) and a coagulation water pipe. The thermal-radiation internal-circulation power generation device can fully use a solar energy heat source and a saline solution as stored energy and a heat transfer medium and uses other energy to heat in complementary mode. The steam generator is of a special structure, and atomized wet air flow is heated by heat conduction oil to be instantly converted into high temperature high pressure steam to achieve a critical effect. The thermal-radiation internal-circulation power generation device is applied to large, middle and small power generation fields.

A power supply method for an alternating-direct current locomotive upon unpowered conveying is characterized in that a power supply device for an alternating-direct current locomotive is disposed on the locomotive, a locomotive battery is used to provide exciting power for a traction motor through an exciting chopper module of the power supply device, the traction motor enters power generation state to power a locomotive load, and after the traction motor enters the power generation state, the exciting chopper module uses the power generated by the traction motor to continuously provide exciting power for the traction motor. After the traction motor enters the power generation state, the power generated by the traction motor is used to provide exciting power for the traction motor, and itis ensured that in the power generation process, the exciting power is continuously supplied so that the traction motor can generate power continuously and stably; by monitoring, in real time, speed of the traction motor, voltage and current of two ends of a traction motor armature and output current of the exciting chopper module, the magnitude of exciting current output by the exciting chopper module can be adjusted according to monitored values to ensure that power generated by the traction motor has stable voltage.

The invention belongs to the technical field of thermoelectricity, and relates to a heat-and-power cogeneration unit combining an electric heat pump and a heat storage device and a peak regulation method thereof. The heat-and-power cogeneration unit basically comprises a turbine, the electric heat pump and the heat storage device and can be used for peak regulation in a power grid. Through combination of the electric heat pump and the heat storage device, a heat storage mode and a heat release mode can be switched according to power generation dispatching requirements of a thermal power plant, and the purposes that heating is guaranteed while the grid power generation quantity of the thermal power plant is changed are achieved; and steam exhaust heat is recovered through a condenser and an evaporator of the electric heat pump, and the heating cost of the thermal power plant is lowered. According to the heat-and-power cogeneration unit combining the electric heat pump and the heat storage device and the peak regulation method thereof, the power generation peak regulation range of the thermal power plant is expanded, the electric power regulating range of the power grid is expanded accordingly, more grid power generation time is provided for wind electricity and other renewable energy sources, and the problem of wind abandoning is finally solved; and for a thermal power plant with the limited heating capacity, steam exhaust heat can be recovered by means of the heat-and-power cogeneration unit combining the electric heat pump and the heat storage device and the peak regulation method thereof, and the external heating capacity can be promoted. The heat-and-power cogeneration unit combining the electric heat pump and the heat storage device and the peak regulation method thereof are suitable for participating in power grid peak regulation.

The invention discloses a centralized-distributed photovoltaic intelligent power control system, a photovoltaic power system and a control method. The intelligent power control system comprises a plurality of single string control units and a centralized control unit, wherein the centralized control unit is connected with each single string control unit, each single string control unit is correspondingly used for controlling an output power of a path of photovoltaic string, and the centralized control unit is used for synergically controlling each single string control unit to synertically control the output power of each path of photovoltaic string. The photovoltaic power system comprises a photovoltaic array, the control system and an inverter. According to the control method, each single string control unit is used for performing maximum power point tracking (MPPT) control on the corresponding path of the photovoltaic string, and the centralized control unit is used for acquiring an output power state of each path of photovoltaic string in real time and controlling and adjusting the output power of each path of photovoltaic string. The intelligent power control system has the advantages of high luminous efficiency, high reliability and the like, and intelligent optical matching and integral coordination control of photovoltaic power generation can be achieved.

This invention relates to a kind of information exchange method and system used for base station power generation management.It includes: the robot server to get relevant power-off information, and send it to first group; procure the information of base station in de-energization scope according to de-energization scope, and get the power storage information of each base station in de-energization scope, ensure the anticipated power guarantee duration of base station, it will conduct matching process according to expected power-off duration and anticipated power guarantee duration and ensure whether the power storage of base station can meet power demand during anticipated power-off period, and if it confirm that the power storage cannot meet the power demand, the electrical maintenance reference information will be created, and it will collect the electrical maintenance reference information of each base station and send to the first group, the users in first group will get electrical maintenance reference information through terminal equipment,then conduct electrical maintenance on the corresponding base station.

The invention discloses a pivoting friction generator. The pivoting friction generator comprises a first friction generating unit (100) and a second friction generating unit (200) which are arranged in an opposite manner, the first friction generating unit (100) and the second friction generating unit (200) comprise rotatable friction bodies (110, 210) and electrode bodies (120, 220) which sleeve the outer sides of the friction bodies, the friction bodies (110, 210) in the first friction generating unit (100) and the second friction generating unit (200) are in contact friction; and the electrode bodies (120, 220) of the first friction generating unit (100) and the second friction generating unit (200) are output electrodes of the pivoting friction generator. The invention also discloses the friction generating units. In the pivoting friction generator and the friction generating units, through the charge induction effect of the contact friction surface of a rotary roller and the electrode plate on the inner wall of a bracing frame, one-step friction of the contact friction surface can generate a multi-time generating effect, the generating efficiency is improved, and the generating capacity is guaranteed.

The invention provides a fan blade which comprises a sealed fan shell body. The fan shell body is formed by an upper shell and a lower shell in a butt joint mode. A shearing resistance web is arranged inside a cavity formed by the fan shell body. The top end and the bottom end of the shearing resistance web are respectively and fixedly connected with a beam cap on the upper shell and a beam cap on the lower shell. A connecting body is arranged between the shearing resistance web and the rear edge of the fan blade inside the cavity, and the connecting body is respectively and fixedly connected with the upper shell and the lower shell. The fan blade improves the bulking resistance capacity of the rear edge of the fan blade, the tackless phenomenon at the position of the rear edge of the fan blade is effectively avoided through fixed connection between the upper shell and the connecting body and the fixed connection between the lower shell and the connecting body, failures caused by insufficient stability of the rear edge of the fan blade are prevented, and therefore normal power generation of a wind turbine generator is guaranteed.

The invention relates to a solar and hydrogen fuel battery field charging pile facing small-scaled equipment. The charging pile comprises a solar cell panel, a lead storage battery, a water tank, a hydrogen storage tank, a hydrogen fuel battery, a power supply output interface and a charging pile shell; the output end of the solar cell panel is respectively connected with the lead storage batteryand an oxygen generation device and a hydrogen generation device which are arranged in the water tank; the output end of the lead storage battery is respectively connected with the oxygen generation device and the hydrogen generation device in the water tank; the power supply output interface is formed in the charging pile shell, and is connected with the output end of the hydrogen fuel battery; the hydrogen generation device of the water tank is communicated with the air inlet end of the gas storage tank by a hydrogen delivery pipe; the gas outlet end of the hydrogen storage tank is communicated with the hydrogen fuel battery; and the hydrogen fuel battery is provided with a gas inlet. The charging pile disclosed by the invention is small in volume, is low in cost relative to a conventional charging pile when ensuring electricity generation power, and can be used for charging the small-scaled equipment such as outdoor electronic equipment, a farm / field operation unmanned aerial vehicle, an electric vehicle and the like.

The invention discloses a device and a method for improving large reservoir stratified low-temperature water, aims to improve the problem of low temperature of discharged low-temperature water of an established hydropower station, and provides a device for improving the large reservoir stratified low-temperature water. The device comprises a water temperature control curtain which is arranged in a reservoir and mainly comprises a water retaining net, wherein the vertically arranged water temperature control curtain is arranged 600-1,500 m in front of a reservoir dam and is perpendicular to the extension direction of a water intake for discharge in front of the dam; the top of the water temperature control curtain is positioned below a reservoir thermocline, and the bottom of the water temperature control curtain is fixedly arranged at the bottom of the reservoir, so that the surface water and the thermocline water of the reservoir enter the water intake through the top end of the water temperature control curtain; the low-temperature water at the bottom of the reservoir is retained at the water intake by the water temperature control curtain. The temperature of the discharged water of the established power station can be effectively raised by 3-5 DEG C on the premise that the operation situation of the power station is not affected.

The invention relates to a power generation device, in particular to a hybrid new energy power generation device comprising a mounting base. A swinging lifting frame is arranged on the top of the mounting base. The front end of the swinging lifting frame is movably connected with the mounting base through a rotating shaft. A solar module is arranged in the frame of the swinging lifting frame. A first wind power generation module is arranged on the frame on the rear side of the solar module. The rear end of the mounting base is provided with a first driving device connected with the swinging lifting frame. A second wind power generation module is movably arranged at the bottom of the swinging lifting frame. An energy storage device is arranged in the top concave chamber of the mounting base. The hybrid new energy power generation device is simple in structure, reasonable in design, and convenient to operate, operates in a mode where a variety of power generation ways are mixed, has high working efficiency, can guarantee normal power generation throughout the day, has stable working performance, reduces dependence on local climate conditions, and meets people's use conditions.

The invention relates to a friction power generation textile with moisture absorption and perspiration-discharging functions and a preparation method thereof. The friction power generation textile comprises independent textile units, wherein the textile units comprise moisture absorption and perspiration-discharging fabrics, conductive fabrics and friction polar fabrics. The design of the full fabric porous structure ensures the air permeability and moisture permeability of the power generation fabric. When friction surfaces of two pieces of textiles are in contact separation, milliwatt outputpower can be produced. When a human body is sweating, the electrical output power may not be significantly reduced, and can be used to drive common wearable electronic equipment. The friction power generation textile with moisture absorption and perspiration-discharging functions has good flexibility, washability, good air permeability and moisture permeability and good wearing comfort.

The invention provides a blade, a blade sawtooth tail edge and a manufacturing method of the blade sawtooth tail edge. The manufacturing method of the blade sawtooth tail edge comprises the following steps: a sawtooth tail edge forming step: cutting out a sawtooth tail edge, which comprises sawteeth and a bonding region fixedly connected with bottom edges of the sawteeth, in a substrate; and an after-treatment step: forming chamfers at edges of the sawteeth and / or the bonding region of the sawtooth tail edge. The chambers are formed on the sawteeth to enable airflow to flow past a surface of the blade sawtooth tail edge more smoothly, and therefore, the aerodynamic performance of the blade is improved and noise is reduced.

The invention discloses an optimal contract electric quantity decision-making method for a wind-fire bundling power plant in a medium-and-long-term power market. The optimal contract electric quantitydecision-making method comprises: obtaining basic technical parameters, system operation constraint condition data and historical transaction prices of a wind-fire bundling system; establishing an optimization target by taking maximization of the benefit of the wind-fire bundling power plant as a target function; constructing a system operation constraint condition, and establishing a maximum benefit model; inputting the obtained system basic technical data, system operation constraint condition data and historical transaction prices into a constructed optimization model, and solving to obtain optimized wind power bidding electric quantity and thermal power bidding electric quantity; and feeding back the obtained optimal contract electric quantity calculation result to the power plant, and making a decision on electric quantity bidding of the wind-fire bundled power plant. The optimal contract electric quantity and the historical average transaction price obtained by the method are adopted to sign a medium-and-long-term electric power contract with a user or an electricity selling company so as to obtain the maximum benefit.

The invention discloses a reagent-free multi-parameter water quality in-situ monitor. A water quality condition is monitored in real time through an electrode module and a spectrophotometry module, meanwhile, a wind speed is detected and can be directly displayed through a display screen, public fairness of data is guaranteed, the data is stored to a cloud end and can be checked by a user on a mobile phone or a computer end, and data management is performed. The monitor provided by the invention has a unique structural design; and six solar panels are arranged, solar power generation is ensured to provide enough energy for a storage battery, an electrode method module and the spectrophotometry method module are adopted to correspond to detection items such as a temperature, conductivity, dissolved oxygen, a pH value, ammonia nitrogen turbidity, a chemical oxygen demand and the like, no reagent needs to be added, a water quality change condition is effectively monitored in real time, and an emergency is warned.

The invention belongs to the field of the metallurgy industry, and relates to a blast furnace coal gas full-dry purification system and a process flow of the blast furnace coal gas full-dry purification system. The blast furnace coal gas all-dry purification system comprises a blast furnace and a blast furnace waste coal gas purification system communicating with the blast furnace. The blast furnace waste coal gas purification system is connected to bag-type dust removers through waste coal gas pipelines. The bag-type dust removers are connected to parallel TRT systems and pressure reducing valve sets with silencers through net coal gas outlet master pipes and then communicate with a net coal gas pipe net. A net coal gas outlet of each bag-type dust remover is provided with an outlet net coal gas branch pipe blind plate valve. The outlet net coal gas branch pipe blind plate valves are provided with outlet branch pipelines and coal gas pressure relief branch pipes in parallel. Pressurerelief coal gas branch pipe butterfly valves are arranged on the coal gas pressure relief branch pipes. Outlet net coal gas branch pipe butterfly valves are arranged on coal gas outlet branch pipes. The coal gas pressure relief branch pipes are provided with a coal gas pressure relief master pipe in a collecting mode. The coal gas pressure relief master pipe communicates with the net coal gas pipenet. A dense-phase ash conveying technology is adopted. By means of the blast furnace coal gas full-dry purification system and the process flow of the blast furnace coal gas full-dry purification system, requirements of bag-type dust removal technology on the use of nitrogen are reduced, the abrasion of an ash conveying pipeline is reduced, and the operation cost is saved.

The invention discloses an all-weather solar power generation method and system based on whole-process pressure operation. The system comprises a solar heat collection field, a heat storage and release system and a steam power generation system. The solar heat collection field comprises solar heat collectors, low-temperature heat-transfer medium mother pipes and high-temperature heat-transfer medium mother pipes. The heat storage and release system and the steam power generation system are connected between the low-temperature heat-transfer medium mother pipes and the high-temperature heat-transfer medium mother pipes in a parallel manner. Each heat storage tank body of the heat storage and release system is internally provided with a top padding area, one or more middle padding areas and a bottom padding area, wherein each top padding area, the corresponding middle padding areas and the corresponding bottom padding area communicate with one another in sequence; and each padding area is provided with a corresponding inlet switching valve. According to the method, the double-loop system with heat transfer and heat storage separated is adopted; a heat-transfer medium absorbs solar energy cyclically in the solar heat collection field and exchanges heat with an energy storage medium in the heat storage and release system so that heat energy can be stored or obtained; steam is produced in the steam power generation system, so that power generation is conducted; meanwhile, a pressure gas medium is adopted as the heat-transfer medium; and the heat storage and release effect and power generation efficiency are improved.

The invention provides a tidal current energy power generation device and an underwater sealing protective device thereof. The underwater sealing protective device of a tidal current energy power generation unit is used for protecting the power generation unit located in water. The underwater sealing protective device of the tidal current energy power generation unit at least comprises an air pump and at least one pressurization pipe. One end of the pressurization pipe communicates with the air pump, and the other end of the pressurization pump communicates with the power generation unit. The air pump is used for pressurizing the power generation unit independently so that the pressure in the power generation unit can be controlled to be higher than or equal to the outside pressure, accordingly water flow in the outside can be prevented from entering the power generation unit, and the sealing performance of the power generation unit is guaranteed.

The invention discloses a solar tracking system which comprises at least two main beams and a plurality of bases. The main beams are used for mounting solar photovoltaic panels, the bases are used for mounting the main beams, and two ends of each main beam are respectively connected the corresponding bases by first universal connectors; the adjacent main beams are connected with one another by connecting rod assemblies, and the connecting rod assemblies are used for transmitting rotational movement of the adjacent solar photovoltaic panels. The first universal connectors comprise first spheres and first spherical hinged supports, the first spheres are fixedly connected with the main beams, the first spherical hinged supports are fixedly arranged on the bases, and the first spheres are positioned in the first spherical hinged supports to form first spherical hinges. The solar tracking system has the advantages that the main beams can be in linkage with one another by the aid of the connecting rod assemblies even if the central axes of the adjacent main beams are not positioned on the same plane, accordingly, the multiple main beams can be driven by a driving device to rotate in uneven regions, the sun can be tracked by the solar photovoltaic panels, and the power generation of solar power generation systems can be effectively guaranteed.

The invention provides a novel non-metallic photovoltaic module and an assembling process thereof. The novel non-metallic photovoltaic module comprises a photovoltaic module and a solar module insulated frame for fixing the photovoltaic module, wherein a composite material is adopted to be subjected to pultrusion to form the solar module insulated frame; and the photovoltaic module and the solar module insulated frame are bonded into an integrated structure by adopting an adhesive layer at the joint place. The structure is delicate; the process is concise; the photovoltaic module and the insulated frame formed by adopted the composite material through pultrusion are combined to form the photovoltaic module, no stop bar exists on the front face of the module frame, no accumulated dust exists in the bottom of the front face of the module, no hot spot effects are generated, and the service life of the module is prolonged, and the power generation amount of the module is ensured; and, as the insulated frame of the module adopts the composite material, no PID phenomenon is generated, the module efficiency and the service life are not reduced in the case of long-time power generation work of the module, and the cost of the whole system is reduced.

The invention discloses a tidal power generation periphery protection device. The tidal power generation periphery protection device comprises a base, a power generation device body is arranged on theupper surface of the base, the upper surface of the power generation device body is fixedly connected with the lower surface of an operating platform, the upper surface of the operating platform is fixedly connected with the lower surface of a driving device, and the right end of the driving device is fixedly connected with the left end of a rotating shaft. According to the tidal power generationperiphery protection device, the base, the operating platform, the driving device, the rotating shaft, a dragging device, a first through hole, a second through hole, a sliding block, a frame body, afirst baffle, a rotating part, an elastic clamp, a second supporting plate, a sliding groove, a power supply and a switch are arranged, when tidal power generation is conducted, a worker controls a motor to work through the switch firstly, the motor works to drive a rope disc to rotate through the rotating shaft, the rope disc rotates to drive a pulling rope to be released downwards, therefore, foreign matter can not be accumulated at a water inlet, the water inlet is unobstructed, and then the power generation capacity of the power generation device is guaranteed.

Provided is a piezoelectric power generator that has an overall compact size and in which a plurality of piezoelectric elements having a low natural frequency of vibration and that generate a large amount of power can be arranged in a compact manner. A piezoelectric power generator A includes a first piezoelectric element 2 and a second piezoelectric element 4, which each have a cantilever structure, fixed to the top of two opposing side walls 11 and 12 of a housing 1. The first piezoelectric element 2 and the second piezoelectric element 4 are arranged so as to oppose each other in an alternating manner and respectively have a first weight 3 and a second weight 5 joined to free ends thereof. Unused spaces formed below the fixed end sides of the piezoelectric elements 2 and 4 are used as spaces in which the weights 3 and 5 can move by positioning one of the weights under the fixed end side of the other of the piezoelectric elements.

The invention discloses a water injection well movable underground power generation device and method. The water injection well movable underground power generation device comprises an outer pipe andat least one group of power generator set, wherein the power generator set is positioned in an inner cavity of the outer pipe; a spring piece is arranged at the inner wall of the left side of the outer pipe; in an ordinary state, the power generator set is elastically extruded on the inner wall of the right side of the outer pipe by the spring piece; an upper guide body and a lower guide body arearranged at two ends of the power generator set; the upper guide body is provided with a right lower inclined surface; the lower guide body is provided with a left lower inclined surface; a radial upper guide body through hole is formed in the upper guide body; and a radial lower guide body through hole is formed in the lower guide body. An upper support rod and a lower support body with the radial direction facing to the inner cavity of the outer pipe are arranged on the outer pipe; the upper support rod is inserted into the upper guide body through hole; and the lower support rod is insertedinto the lower guide body through hole. A water separation plate is arranged at the left side surface of the power generator set. The long-period and stable electric power supplementation can be provided for an underground intelligent water injection tool.