38results about How to "Improve power generation revenue" patented technology

The invention discloses a cascade reservoir combined flood scheduling optimization method coupled with flood control and power generation, which can coordinate flood control and power generation goals in flood scheduling, and adopt corresponding models for different standard floods, timely power generation pre-discharging and closing gates and staggered peaks, reducing flood seasons It is useless to abandon water to maximize the benefits of cascade reservoir flood control and power generation. The technical solution is: judge the level of the flood according to the real-time hydrometeorological information and flood forecast results. When the average inflow flow during the flood period is greater than the full flow of the power station, it will be judged as a major flood, otherwise it will be judged as a small flood; according to the different levels Different models are used to optimize the scheduling of different control objectives; under each different flow, constraint settings and control objectives, a number of different flood control schemes are obtained, which constitute a set of flood control schemes corresponding to a flood, as the basis for decision-making, if In the flood control scheme set, it is necessary to modify the inflow flow, so the simulated flood control calculation under various inflow conditions is repeated.

A novel photovoltaic pavement power generation module disclosed by the present invention comprises a power generation assembly used for the photovoltaic power generation, a light transmission bearinglayer used for a pavement load layer and used for protecting a photovoltaic power generation assembly, a supporting layer used for supporting the light transmission bearing layer, and a frame used forfixing the light transmission bearing layer and the supporting layer. A first interval is arranged between the light transmission bearing layer and the supporting layer, and the power generation assembly and a first colloid arranged along the circumferential side of the power generation assembly are arranged in the first interval. The frame is arranged at the circumferential sides of the light transmission bearing layer and the supporting layer and forms a second interval, a second colloid is arranged in the second interval, and the top of the frame does not exceed the surface of the light transmission bearing layer. The beneficial effects of the present invention are that the photovoltaic pavement power generation module has the characteristics of being high in intensity and good in economy, being deformation resistant, anti-skid, waterproof and wear resistant, a novel power generation form, namely the photovoltaic pavement power generation is formed in the photovoltaic building integrated application, and the effective development and utilization of the road illumination resources can be realized on the condition of not influencing the normal usage functions of the roads.

The invention discloses a plant network coordination method for exciting the combined operation of a wind power plant and a pumped storage power station and a combined dispatching method thereof. Themethod comprises the steps of firstly, providing a plant-network coordination mechanism for exciting the combined operation of the wind power plant and the pumped storage power station from the requirements of stable operation of a power grid and income improvement of a power generator; on the basis, carrying out modeling analysis on the uncertainty of wind power output, fully considering the operation characteristics of the pumped storage power station, constructing a wind power-pumped storage power station coordinated operation mixed integer programming model with the maximum complex power generation income as the target, and then using an optimization solver for solving the model. By the adoption of the method, the combined dispatching of wind power and pumped storage can effectively restrain the output fluctuation of the wind power, the risk of wind curtailment of a power grid is greatly reduced, and meanwhile the power generation income of a wind power plant-pumped storage power station combined body is remarkably increased.

The invention discloses a wind power plant active power optimization method based on wind speed time sequence decomposition. The method comprises the following steps that step one: a wind speed prediction curve of the next control cycle of a wind power plant is converted into a discrete wind speed sequence; step two: wind speed values corresponding to all elements of the discrete wind speed sequence are regarded as constant natural wind speed, and the active power reference value and initial time thereof of each machine set are calculated respectively under the effect of constant natural wind speed; and step three: an active power reference value control curve of each machine set under the effect of the wind speed sequence is generated by the active power reference value and the initial time thereof of each machine set, and each machine set operates according to the control curve. According to the optimization method, active power optimization of the wind power plant under dynamic wind speed is realized by using lower amount of calculation and less hardware resources so that a scheme with practical value is formed, generation capacity of the wind power plant can be enhanced and the generation benefits of the wind power plant can be enhanced.

The invention discloses a working sealing device for a water turbine spindle. A sealing mechanism consists of a sealing block, a wear-resistant ring, a sealing box, a decompression drain pipe, a sealing cover and an air shroud; the sealing block below the wear-resistant ring is sleeved at the upper end of a positioning screw in the sealing box; the lower end of the positioning screw is fixed at the bottom of the sealing box; a pressure water inlet pipe is communicated with the cavity of the sealing box at the bottom of the sealing block; the wear-resistant ring is in close contact fit with the sealing block below the wear-resistant ring under the action of water inlet pressure of the pressure water inlet pipe; the sealing box is arranged above the sealing cover; the decompression drain pipe is communicated with a drain hole of a labyrinth slot in the sealing cover; the sealing cover is arranged on a top cover of a water guide mechanism; and the air shroud is arranged between the sealing cover and the top cover. The sealing mechanism is arranged outside a rotation oil pan of the spindle, wherein the wear-resistant ring is fixedly connected with the periphery of the rotation oil pan. The sealing device has the self compensating function, reduces overhauling times, prolongs the service life, has high sealing performance, and improves the running stability of a water turbine.

The invention discloses a household photovoltaic power station fault monitoring and early warning method. The method comprises the following steps: collecting power generation data of a user power station at regular time; comparing the real-time data with the power generation information received by the power station of the user on that day and on that month, and judging whether the power generation data is abnormal or not; establishing a power station power generation model and a power station group in the same group, judging whether the abnormal data is a power generation fault, and if so, performing fault processing; establishing a fault pool, comparing the fault information with the existing fault types stored in the fault pool, and if the comparison is successful, carrying out intelligent fault processing; if the comparison fails, starting a manual fault processing flow; after the fault processing is finished, recording the fault information, and inputting the fault information into a fault pool; and carrying out the next round of data acquisition. According to the invention, remote monitoring of the photovoltaic power station can be realized, and remote control of the fault point of the household photovoltaic power station can also be realized, so that the fault point can be cut off in time when a fault is found, and the property loss of a user is reduced.

The invention relates to an incoming water uncertainty-considered method for estimating monthly optimal traded power of hydropower stations and belongs to the technical field of power market trading of the hydropower stations. The method comprises the steps of firstly carrying out statistical analysis on historical predicted values and actual values of monthly runoffs of a reservoir in the same time period and obtaining probabilities corresponding to flow intervals of the different levels of inflow runoffs in the month according to predicted value results of the runoffs in the current month; calculating the average power which can be generated by a hydropower station and the probability according to the current initial water level and the planned water level at the end of the month, of thehydropower station and the probabilities corresponding to the flow intervals of the different levels of inflow runoffs; and by considering the predicted traded power price and default loss price of the month and taking the maximum expected revenue of the hydropower station as the target, establishing a monthly traded power optimizing model and solving to obtain an estimated value of the monthly optimal traded power. The method has the advantages that the expected revenue of the hydropower station can be increased under the circumstance of considering the uncertainty of reservoir inflow; and areference can be provided for the hydropower station to participate in the monthly power trading.

The invention belongs to the technical field of the design of wind power generation plant engineering, in particular relates to a method for improving wind energy utilization ratio of a wind power plant on a high-altitude mountain land and a system of the method. According to the method, a vertical axial flow machine and a horizontal axial flow machine are installed in a mixed way to improve the wind energy utilization ratio of the wind power plant, the method is suitably used for technical improvement of the wind power plant already built or under construction on the high-altitude mountain land, the wind energy utilization ratio of the wind power plant on the high-altitude mountain land can be effectively improved, and the environment-friendly benefit, the social benefit and the economic benefit of the wind power plant engineering are further improved. The system comprises a data input module 1, a machine type database 2, a machine position and type optimization module 3 and a data output module 4.

The invention discloses an intelligent optimized power generation system of small and medium-sized power stations, which comprises intelligent autonomous control of active loads and automatic adjustment of power factor and reactive power. According to the intelligent autonomous control of active loads, the water level and the change rate of a forebay are read in real time, the influence of waves on the water surface is eliminated through a digital filtering technology, and the change trend of the water volume of the forebay is calculated. The intelligent optimized power generation system of the small and medium-sized power stations is a functional module integrated on an integrated automation system of the hydropower station. The intelligent optimized power generation system acquires real-time acquired data of the power station and realizes real-time intelligent control on related equipment of a generating set of the power station by means of the integrated automation system of the hydropower station. Meanwhile, the integrated automation system of the power station is connected with a remote cloud platform through the Internet by means of the system, thereby enabling the hydropowerstation and the cloud platform to meet real-time interaction requirements, and realizing the remote real-time monitoring of the hydropower station.

The invention discloses an online detecting device for the surface ash deposition degree of a photovoltaic module in the photovoltaic field. The online detecting device comprises an illumination intensity sensor arranged on the top surface of a casing, wherein the casing is connected with the photovoltaic module; an input interface, an output interface, an anode interface and a cathode interface are formed in the side face of the casing; the input interface is connected with an anode of a previous photovoltaic module of a to-be-detected photovoltaic module; the output interface is connected with a cathode of a next photovoltaic module of the to-be-detected photovoltaic module; the anode interface is connected with an anode of the to-be-detected photovoltaic module; the cathode interface is connected with a cathode of the to-be-detected photovoltaic module; a detection control system is arranged in the casing. According to the online detecting device disclosed by the invention, actual environment component power of the photovoltaic module and ash deposition time are subjected to curve fitting, a relational function between photovoltaic module gain and interval cleaning time is calculated out, and finally optimal cleaning interval time is calculated out; the online detecting device can be used for cleaning the photovoltaic module.

The invention discloses a natural ventilation countercurrent type cooling tower air energy power generation device. The natural ventilation countercurrent type cooling tower air energy power generation device comprises an air inlet system and an air energy power generation device body. The power generation device is characterized in that air is directly introduced into a tower barrel of a cooling tower in winter or in a low-temperature environment, and due to the difference between the inner air density and the outer air density of the tower, the air outside the tower is accelerated to flow into the tower barrel, and power generated by air flowing is utilized for power generation. The power generation device has the beneficial effects that the air energy is utilized for power generation, so that the power generating capacity is increased; the suction force of the cooling tower is reduced, and the icing degree of the cooling tower in winter or in the low-temperature environment is improved; and the power consumption of a circulating cooling water system is reduced.

The invention relates to a thermal power plant power generator unit with a variable-frequency power generator unit and a steam turbine power generator unit in coaxial arrangement. The thermal power plant power generator unit comprises the steam turbine power generator unit consisting of a steam turbine and a first power generator, wherein the steam turbine drags the first power generator to rotate at a fixed speed to generate electricity, the thermal power plant power generator unit also comprises the variable-frequency power generator unit consisting of a speed regulation gearbox and a second power generator, the rotating speed of the steam turbine is output to the second power generator after the speed regulation by the speed regulation gearbox, and the electricity is supplied to a variable-frequency plant electricity consumption system through the second power generator. According to the thermal power plant power generator unit, industrial frequency electric energy can be generated by the first power generator to be used for on-line sales, and variable-frequency electric energy can also be generated by the second power generator to be used for self plant electricity consumption; compared with a conventional steam turbine power generator unit, the thermal power plant power generator unit has advantages that the output force of the steam turbine is sufficiently utilized, the operation efficiency of the steam turbine is improved, the electric energy is provided for major power loads in the plant through the second power generator, the integrated frequency conversion of the major power loads in the whole plant is realized, the plant electricity consumption rate is reduced, the electric energy is saved, the on-grid electric quantity is increased, and the power generating income of the power plant is improved.

The invention discloses a cooling type solar battery assembly and a manufacturing technology of the cooling type solar battery assembly. The solar battery assembly is formed by connecting solar photovoltaic glass, a first cooling packaging adhesive film, a battery piece, a second cooling packaging adhesive film, a thin PET insulating film, a third cooling packaging adhesive film, a metal cooling back plate, structural adhesive and a metal supporting beam sequentially from top to bottom. The manufacturing technology comprises the steps of stacking, defect inspection, lamination and installation of a junction box and the supporting beam. Compared with an existing conventional solar battery assembly, the cooling type solar battery assembly effectively improves heat conduction and cooling by the adoption of cooling packaging adhesive films of high heat conductivity in cooperation with the metal cooling back plate of high heat transfer coefficients; in this way, the output power of the solar battery assembly is effectively increased, and power generation benefits are increased; besides, the manufacturing technology also has the advantages that the technological method is advanced, and technological equipment is simple.

The invention discloses a wind generating set inhaul cable type steel cylinder tower. The wind generating set inhaul cable type steel cylinder tower comprises a tower cylinder section, and is characterized by further comprising tower cylinder transition sections, an inhaul cable flange and an inhaul cable; tower cylinder transition section flanges are arranged at the two ends of each tower cylinder transition section, and flange bolt holes are formed in the tower cylinder transition section flanges; the inhaul cable flange is provided with an inhaul cable flange bolt hole, and the outer wall of the inhaul cable flange is provided with an inhaul cable flange lug plate; the inhaul cable flange is located between the two tower cylinder transition sections, and a flange connecting bolt penetrates through the flange bolt hole and the inhaul cable flange bolt hole to connect the two tower cylinder transition sections and the inhaul cable flange together; and the tower cylinder section is connected with the outer side ends of the two tower cylinder transition sections, one end of the inhaul cable is connected with the inhaul cable flange lug plate, and the other end of the inhaul cable isconnected with a ground anchoring point. The invention further discloses a steel cylinder replacing method of the wind generating set inhaul cable type steel cylinder tower. According to the wind generating set inhaul cable type steel cylinder tower and the steel cylinder replacing method, the stress path of the steel cylinder tower can be reasonably distributed, and the stress performance of thetower and joints is improved.

The invention relates to the technical field of photovoltaic power generation, and provides an abnormal photovoltaic string branch identification method and device, electronic equipment and a storage medium. The method comprises the steps of calculating a first dispersion rate of each inverter in a photovoltaic system according to a preset calculation period, and screening out abnormal inverters of which the first dispersion rates are greater than a preset dispersion threshold value; screening each photovoltaic string branch connected with the same abnormal inverter so as to determine a first photovoltaic string branch with the minimum output power; calculating a second dispersion rate of the abnormal inverter after the first photovoltaic string branch is removed; and when the second dispersion rate is smaller than or equal to a preset dispersion threshold value, determining that the first photovoltaic string branch is an abnormal photovoltaic string branch, thereby being capable of timely and accurately identifying the abnormally operating photovoltaic string device in the system, being high in identification efficiency, effectively reducing energy waste caused by the fault of the photovoltaic string device, and improving the reliability of the system. And the power generation income of enterprises can be improved.

The invention relates to a double-sided photovoltaic system combined with an agricultural and livestock greenhouse. A greenhouse structure comprises a main body part and a photovoltaic part, wherein the main body part comprises a front wall, a rear wall and a roof; the photovoltaic part comprises columns, a bracket structure, a photovoltaic array and mounting accessories; the photovoltaic part ismounted on the roof; the roof is mounted on the front wall and the rear wall by the columns and the bracket structure as a reflective surface of a photovoltaic assembly. The invention has beneficial effects that the agricultural and livestock greenhouse containing a double-sided assembly provided by the embodiment ensures benefits of photovoltaic power generation and also ensures reasonable lighting required for agricultural farming and planting by mounting the photovoltaic system at the top of the main body part of a breeding shed or a planting shed and using the roof of the main body part ofthe breeding shed or the planting shed as the reflective surface of the photovoltaic system; the structure of the invention can be adopted to appropriately reduce array inclination; the roof is designed and utilized to increase the benefits of the back of the assembly.

The invention provides a biomass gas coupled coal-fired unit power generation device, which mainly solves the problems that under an ultralow load situation, SCR inlet temperature is lower than effective working temperature of a catalyst, which causes that denitration cannot be put in use. A circulating fluidized bed gasifier, a cyclone dust collector, a fuel gas heat exchanger are successively connected via pipelines. The outlet of the fuel gas heat exchanger is divided into two paths: one passes through a fuel gas combustor A via a path-A fuel gas pipeline and is connected to the hearth of aboiler furnace, the other passes through a fuel gas combustor B via a path-B fuel gas pipeline and is connected to a horizontal flue in the front of a SCR denitration device. The SCR denitration device is connected to the outlet of a coal-firing boiler economizer through the horizontal flue. The fuel gas combustion chamber of the fuel gas combustor B is connected to a tail secondary air duct of the coal-firing boiler. The tail secondary air duct of the coal-firing boiler and the outlet flue of the SCR denitration device are respectively to a revolving air preheater. The device achieves coupled power generation of the biomass flue gas and the coal-fired unit under an ultralow load situation of the coal-fired unit.

The invention provides a real-time solar tracking photovoltaic device, which characterized in that the device comprises a frame (1), sub components, a first support (4) and a driving part; the driving part drives the first support (4) to move; the frame (1), the driving part, the first support (4) and sub components are sequentially connected; the driving part comprises driving wheels (2) and a driven wheel (3); and the side parts of the driving wheels (2) are matched with the side part of the driven wheel (3). The device of the invention has the advantages of occupying no land resources, reducing the cost of land acquisition and indirectly increasing the benefits of photovoltaic power generation. The water body has a cooling effect on a photovoltaic module, can inhibit the temperature rise of the module surface, and thus obtains higher power generation capacity. Solar panels cover the water surface, evaporation on the water surface is greatly reduced, the efficiencies of hydroelectric power generation and irrigation are increased, meanwhile, the growth of algae is inhibited and the protection of water resources is facilitated.

The invention relates to the technical field of magnetic suspension bearings, and discloses a self-aligning magnetic suspension bearing system and a generator. The self-aligning magnetic suspension bearing system comprises an active magnetic suspension bearing and a mechanical bearing which are coupled with each other, wherein the active magnetic suspension bearing and the mechanical bearing support a generator main shaft together; the active magnetic suspension bearing comprises an electromagnet and an armature; the electromagnet is mounted on a fixed shaft; the armature is mounted on a movable shaft; and the electromagnet and the armature are matched to form a bearing magnetic loop and generate electromagnetic force. Therefore, unbalanced magnetic tension can be counteracted, the vibration of the magnetic suspension bearing is reduced, and the service life of the mechanical bearing is prolonged; Moreover, radial deviation between a stator and a rotor of the generator can be reduced,a radial gap between the stator and the rotor is reduced, power generation efficiency of the generator is improved, and power generation income is increased.

The invention provides a method and a system for compressing metallurgical gas for energy storage and power generation through combustion. The method and the system are beneficial to improving the gasrecovery rate of ferrous metallurgy enterprises, reducing the occupied area of gas storage facilities and reducing the power consumption cost of the enterprises. The method comprises the following steps that in the off-peak electricity period, compressing is carried out on the metallurgical gas by adopting a gas compressor and the compressed metallurgical gas are stored in a gas compression container; in the peak electricity or flat electricity period, the compressed metallurgical gas is released from the gas compression container and firstly enters an expansion generator set for power generation, and the metallurgical gas obtained after expansion power generation is fed into a gas generator set for power generation through combustion; or in the peak electricity or flat electricity period, the compressed metallurgical coal gas is released from the coal gas compression container and directly fed into the gas generator set for power generation through combustion. The system comprises agas compressor, the expansion generator set and the gas generator set, the gas compressor is used for compressing the metallurgical gas and storing the compressed metallurgical gas in the gas compression container in the off-peak electricity period; the expansion generator set is used for sending the compressed gas stored in the off-peak electricity period into the expansion generator set from thegas compression container to generate electricity in the peak electricity period or the flat electricity period; and the gas generator set combusts the metallurgical gas subjected to expansion powergeneration for combustion power generation in the peak electricity period or the flat electricity period. The method and the system are suitable for the technical field of metallurgical enterprise energy storage and power generation.

The invention discloses a cooling control method, device and system for a photovoltaic module, and the method comprises the steps: obtaining a first actual backboard temperature and actual solar irradiation intensity of the photovoltaic module when the photovoltaic module in a cooling control region is in an operation state; whether the first actual backboard temperature and the actual solar irradiation intensity meet preset conditions or not is judged; and if yes, controlling the cooling device to perform cooling operation on the photovoltaic module. By automatically executing an intelligent algorithm, under the condition that the water consumption is reduced as much as possible, the temperature of the photovoltaic module is reduced, the power generation efficiency is improved, and the power generation income is increased; through the cooling system, intelligent water spraying operation on the surface of the photovoltaic module is realized, so that the temperature of the photovoltaic module is effectively reduced; the water spraying operation can also promote the surface of the photovoltaic module to keep clean, and the cleaning cost is reduced.

The invention discloses a current control method and system, and the method comprises the steps: building the communication connection between a communication collection unit and a main control unit, and between the communication collection unit and a server, and connecting the main control unit with a photovoltaic module; the output end of the photovoltaic module is connected in series with a main control switch; connecting the main control switch in parallel with an auxiliary control switch, and enabling the auxiliary control switch to be in an off state; the driving ends of the main control switch and the auxiliary control switch are respectively connected with the main control unit; the main control unit firstly controls the auxiliary control switch to be switched on, so that the main control switch is in a short-circuited state; and the main control unit controls the main control switch to be switched off, and after the main control switch is switched off, the main control unit controls the auxiliary control switch to be switched off. The impact of large current is effectively solved through the auxiliary control switch, the risk of arc discharge when the main control switch is switched off is eliminated, and the sizes of the main control switch and the auxiliary control switch are greatly reduced. In addition, the main control switch is in a normally-closed state, so that power consumption is effectively reduced, and cost is saved.

The invention discloses a fused salt heat storage photo-thermal power station operation optimization system and method. The method comprises the steps of calculating all-day collectable total heat and optimization boundary conditions of all-day time periods according to meteorological data and fused salt state data, and according to the total heat and the boundary conditions, by taking the maximum all-day power generation as a principle, calculating all possible all-day period power generation working condition combinations through iteration; generating a load curve according to the working condition with the maximum generating capacity, and generating a load instruction according to the load curve; and controlling operation parameters of a power station according to the load instruction to realize all-day operation optimization of a fused salt heat storage photo-thermal power station. According to the method, more power can be generated in the time period with higher efficiency, less power can be generated in the time period with lower efficiency, the power generation output is improved under the condition of certain heat, the overall power generation efficiency is improved, the power generation load in part of time periods is reduced, the power generation duration is prolonged, power can be continuously generated in the whole time period in part of days, and energy consumption in the shutdown process of the power station and the starting process of the second day is avoided.

The invention provides a method and a system for storing energy by compressing metallurgical gas. The method and the system are beneficial to improving the gas recovery rate of ferrous metallurgy enterprises, reducing the occupied area of gas storage facilities and reducing the power consumption cost of the enterprises. The method comprises the following steps that compressing is carried out on the metallurgical gas by adopting a compressor and the compressed metallurgical gas is stored in a gas compression container in an off-peak electricity period; and in the peak electricity or flat electricity period, the compressed metallurgical gas is released from the gas compression container and enters an expansion generator for power generation. The system comprises a gas compressor and a expansion generator set and; the gas compressor is used for compressing the metallurgical gas and storing the compressed metallurgical coal gas in the gas compression container in the off-peak electricity period; and in the peak electricity or flat electricity period, the compressed gas stored in the gas compressor electricity period is fed into the expansion generator set from the gas compression container for power generation. The method and the system are suitable for the technical field of metallurgical enterprise energy storage.

The invention discloses an on-line detection device for the gray scale of the surface area of ​​a photovoltaic module in the field of photovoltaics. Negative interface, the input interface is connected to the positive pole of the previous photovoltaic module to be tested, the output interface is connected to the negative pole of the next photovoltaic module to be tested, the positive interface is connected to the positive pole of the photovoltaic module to be tested, and the negative pole The interface is connected to the negative electrode of the photovoltaic module to be tested, and a detection and control system is installed inside the casing. The present invention calculates the relationship function between the photovoltaic module revenue and the interval cleaning time by performing curve fitting on the power of the actual environment of the photovoltaic module and the ash accumulation time. , and finally calculate the optimal cleaning interval, which can be used in photovoltaic module cleaning.

The invention relates to a wind generator and its centralized lubrication system. The wind turbine includes a lubrication system for filling each bearing of the wind turbine with grease and a grease replenishing system for replenishing the oil tank with grease. The fat-replenishing system includes a fat-replenishing room. The fat-replenishing room is equipped with a fat-replenishing machine, a fat-replenishing table, a transfer barrel, a product oil barrel and multiple oil tanks. The grease outlet on the oil suction tray is connected to the grease filling table through the grease filling pipe. The grease filling table is inlaid with a quick-plug female connector. The quick-plug female connector is connected with the grease filling pipe. The lower part of the barrel has a grease filling channel, the lower part of the grease filling channel is equipped with a quick-plug male joint, and the lower part of the fuel tank has a lower convex oil port, and the lower convex oil port is sealed and inserted in the upper part of the grease filling channel to communicate with the quick-plug male joint. The female connector is inserted and matched with the quick-plug male connector. It has the advantages of convenience, quickness, low cost, safety and reliability of fat supplementation.