24 results about "Pv generation" patented technology

The invention discloses a light storage and charging integrated intelligent charging station, which comprises a photovoltaic power generation module, an energy storage module, a charging module, an intelligent control module and a power grid interaction module, and is characterized in that the output end of the photovoltaic power generation module is connected with the input end of the energy storage module and the first input end of the charging module; the output end of the energy storage module is connected with the second input end of the charging module. The power grid interaction module is bidirectionally and electrically connected with the energy storage module and the charging module. And the intelligent control module is used for dynamically adjusting an energy flow path according to the photovoltaic power generation power, the residual electric quantity of the energy storage module, the load demand of the charging module and the real-time electricity price of the power grid. According to the optical storage and charging integrated intelligent charging station, the defects that in the prior art, an optical storage and charging power station is not intelligent in energy dispatching, low in energy utilization rate and single in function are overcome.

This invention belongs to the fields of solar energy utilization and low-carbon building applications, and relates to an integrated energy cascade utilization system based on a dual-channel PV / T system. The invention includes a photovoltaic power generation system, a photovoltaic panel preheating unit, a solar thermal power generation system, a waste heat storage system, and a smart control system. Different control strategies are implemented during the heating, cooling, and transition periods. This invention integrates photovoltaic panels and collectors / evaporators into a single PV / T module, solving the problem of low power generation efficiency of a single photovoltaic panel at high temperatures. The heat energy generated by the photovoltaic panels and any unused heat energy is used as a low-temperature heat source for the heat pump system. The high-temperature heat energy converted by the heat pump can be used for winter heating and ORC power generation. Waste heat during system operation can be stored in phase change materials. The controller intelligently controls the fans, sensors, and valves in the system to meet different functional requirements, ultimately achieving a total system efficiency of 80-90%.

The invention discloses a micro-grid economy and energy configuration optimization method, which comprises the following steps of S1, determining a networking mode of a micro-grid system, and respectively establishing economic power models of photovoltaic power generation equipment, wind power generation equipment, lithium battery equipment and SOFC (Solid Oxide Fuel Cell) equipment; s2, on the basis of the economic power model of each device established in the step S1, designing a cost function for economic dispatching, establishing a microgrid cost calculation model, determining economic dispatching constraints, solving an economic dispatching problem by using a mathematical programming method, and performing simulation analysis to obtain optimal configuration of economic dispatching; and S3, on the basis of the micro-grid cost calculation model established in the step S2, obtaining load data and meteorological data of micro-grid operation, and performing simulation analysis by adopting a GA-PSO algorithm to obtain the optimal capacity configuration of the micro-grid.

A low-to-medium maturity shale oil extraction system based on curtailed power heating includes a transmission line with an input terminal electrically connected to curtailed power from a wind and PV power generation base and an output terminal electrically connected to an input terminal of a surface control platform, where downhole electric heaters are located inside a heating well; the heating well penetrates through an upper sealing layer and is located in a reservoir; downhole temperature and pressure monitoring controllers are provided in the heating well; the downhole temperature and pressure monitoring controller is electrically connected to the downhole electric heater; and a production well penetrates through the upper sealing layer and is located at a side of the heating well adjacent to the ground in the reservoir. The system avoids resource waste caused by power curtailment, enhances energy utilization efficiency, and improves the mobility and recoverability of shale oil.

This invention relates to the field of new energy power generation technology, specifically a method for optimizing the wind-solar power ratio system of a hydrogen production park, comprising: S1) calculating the output time series of local wind and solar power generation, and analyzing the output characteristics of wind and solar power and the wind-solar correlation; S2) establishing equivalent equipment models of hydrogen energy storage units and electrochemical energy storage units, based on the operating characteristic models of relevant electrical and hydrogen equipment in the park; S3) combining the above objective functions to obtain the system planning optimization configuration scheme and the total system configuration cost of the new energy hydrogen production park; S4) further considering electricity price factors and energy storage operation characteristic constraints, conducting a year-round wind-solar hydrogen production time series operation simulation, and analyzing the park's electricity purchase demand and new energy consumption capacity under the optimized configuration scheme of this plan.

The invention relates to the technical field of energy supply, and discloses a plateau village and town wind, light, generation and storage multi-energy complementary micro-grid dynamic optimization system and method, and the system comprises a photovoltaic power generation module which employs solar energy to generate power so as to supplement daytime load demands; the wind power generation module converts wind energy into electric energy as renewable energy source base load; the biomass energy module is used for generating power by utilizing agricultural wastes so as to provide controllable base load; the energy storage module is used for stabilizing power fluctuation, storing surplus electric energy and releasing the surplus electric energy at a load peak; the dynamic complementation module is used for generating biomass energy generating capacity, energy storage charging and discharging capacity and interaction capacity with a large power grid on the basis of wind speed / illumination prediction and a load curve of the next day by taking minimization of total cost as a principle; the technical problems that in plateau villages and towns, wind power and photovoltaic power generation are intermittent and unstable, and stable energy supply cannot be met are solved.

This invention relates to the field of microgrid-based intelligent building optimization and operation technology, and particularly to a rolling P2P distributed energy information interaction method among microgrid-based intelligent buildings. The steps include: establishing a feasible domain model for the flexible resources of intelligent buildings, including a distributed photovoltaic power generation prediction interval model, an energy storage system charging and discharging power interval model, and a flexible load power adjustment interval model; establishing a P2P energy sharing aggregation interval model and a rolling P2P energy sharing framework; and establishing and solving a microgrid-based intelligent building distributed information interaction scheduling model, including constructing the objective function and constraints of the microgrid economic scheduling model, transforming the microgrid-based intelligent building distributed information interaction problem, and the solution process. This method fully explores the scheduling potential of flexible resources within buildings, improves the flexibility of coordinated scheduling, enhances the enthusiasm of buildings to participate in P2P energy interaction, and increases the self-consumption level of distributed energy, effectively solving the problem of large-scale intelligent building optimization iteration.

The invention provides a multi-energy complementary energy supply offshore unmanned aerial vehicle base station system, and relates to the technical field of ocean engineering equipment, the multi-energy complementary energy supply offshore unmanned aerial vehicle base station system comprises a floating platform, an energy supply module, an unmanned aerial vehicle return module, an intelligent storage module and a central control module, the floating platform comprises a platform main body and a floating body, and the floating body is arranged below the platform main body; the floating body is connected with an anchor block through an anchor chain; when the platform body floats on the water surface, the anchor block is fixed in the seabed, and the floating body provides buoyancy for the platform body. The energy supply module comprises a wave energy power generation device, a photovoltaic power generation device and an energy management device. The energy management device supplies electric energy converted by the wave energy power generation device and the photovoltaic power generation device to the offshore unmanned aerial vehicle base station system. The unmanned aerial vehicle returning module comprises an unmanned aerial vehicle parking platform and a returning charging device. According to the invention, ocean renewable energy sources are utilized, stable electric power is provided for the unmanned aerial vehicle and the load of the unmanned aerial vehicle, and automatic and reliable recovery, parking, charging and protection services are provided for the unmanned aerial vehicle.

The invention relates to the technical field of power electronics and power system protection, and provides an active injection type three-phase automatic reclosing method matched with low voltage ride through. The invention provides a power distribution network fault type active detection method based on a signal injection method. Excitation voltage signals are injected into a fault line through power electronic equipment, the fault type is judged according to the characteristics of current response signals, automatic reclosing operation is carried out according to the fault type, and conflicts generated by low voltage ride through are effectively avoided. Simulation results show that the method can improve the accuracy of fault identification and the success rate of automatic reclosing, has good adaptability with low voltage ride through, and is suitable for modern smart power grids and new energy power generation systems.

The present invention relates to a two-terminal rapid shutdown device for a solar power generation system. The rapid shutdown device of a two-terminal structure for each solar panel may be provided by: a transmitter that generates a high-frequency current and transmits the current via a connection line electrically connecting a plurality of solar panels; and a plurality of receivers that switch an electrical connection between the two terminals by using the power of the high-frequency current flowing in the connection line while each of the two terminals is connected between two neighboring solar panels among the plurality of solar panels.

The invention discloses an intelligent monitoring system and method for energy consumption of an industrial heritage building, and relates to the technical field of heritage building energy consumption monitoring. Data acquisition modules are distributed in the heritage building, and for different devices in the heritage building and the environment around the heritage building, data in multiple aspects are collected; the multi-aspect data is matched with the data processing module to carry out comprehensive calculation, a threshold value alarm module, a trend alarm module, a mode abnormity alarm module and an equipment fault alarm module in the multi-aspect calculation and matching alarm module provide alarms of multiple threshold values, different types of abnormal data can be alarmed, alarm can be carried out in time, and the alarm efficiency is improved. The environment sensor detects the illumination intensity of the area where the heritage building is located, when the illumination intensity is high, use of an external power source is reduced, use of photovoltaic power generation is increased, and when illumination is insufficient, energy consumption can be effectively reduced, and it can be guaranteed that the environment comfort degree and the historical appearance of the heritage building are not affected.

This invention provides an energy management optimization method, system, device, and storage medium for reducing voltage fluctuations and improving hydrogen production efficiency. The method is based on a wind-solar hydrogen production system, which includes a grid unit, a photovoltaic power generation unit, a wind power generation unit, and an electrolyzer unit. The grid unit is connected to node 1, the photovoltaic power generation unit is connected to node 3, the wind power generation unit is connected to node 4, and the electrolyzer unit is connected to node 5. Nodes 1, 3, 4, and 5 are each connected to node 2. The energy management optimization method provided by this invention does not backcharge reactive power to the grid, avoiding the release of excess reactive power from photovoltaic and wind power. The wind-solar hydrogen production system can improve hydrogen production efficiency by optimizing the voltage at the electrolyzer unit's connection point. The system can improve hydrogen production efficiency while optimizing line losses to avoid energy waste.

The invention discloses a power supply system suitable for a rapid charging and discharging energy storage device. The system comprises a power supply unit, a direct current bus, an alternating current unit, a super capacitor device and a capacitor control unit, the output end of the alternating-current unit is connected with the direct-current bus through a cable, the input end of the alternating-current unit is connected with the capacitor management unit, and the direct-current bus is connected with the super-capacitor device. The AC unit adopts an AC / DC bidirectional converter and a DC / DC converter, the system can realize access of various AC and DC power supplies at the input end, such as a power grid, photovoltaic power generation and combination of the power grid and the photovoltaic power generation, green development of the super energy storage system is realized, and the intelligent electric energy monitoring device can monitor the power generation efficiency according to the power generation benefits in different seasons. A control strategy changing along with the system is formulated, and the benefits of energy conservation, efficiency improvement and carbon reduction are achieved.

The invention relates to the technical field of offshore power generation, and discloses an offshore power generation device based on satellite communication and positioning and a control method thereof.The offshore power generation device comprises a fan power generation assembly, a photovoltaic power generation assembly, a winch, a connecting chain and a control mechanism, a plurality of photovoltaic platforms form a photovoltaic array, the winch is arranged on a fan stand column, and the connecting chain is arranged on the fan stand column; one end of the connecting chain is wound on the winch, the other end of the connecting chain is connected with at least one photovoltaic platform located on the outer edge, the control mechanism comprises a monitoring module, a satellite communication module, a control module and a land monitoring module, and the monitoring module is used for determining operation information of the photovoltaic array; the satellite communication module is used for determining satellite positioning information of the photovoltaic array through a low-orbit communication satellite; and the control module is used for controlling the operation of the winch based on the operation information and the satellite positioning information. And the operation state of the photovoltaic array is comprehensively analyzed in combination with satellite positioning, so that the monitoring of the photovoltaic array is more intelligent and accurate, and the operation safety and stability of the photovoltaic platform are improved.

This invention relates to the field of smart grid and home energy management technology, specifically to a home energy management method and system based on multi-scenario switching. The method includes: S01, constructing multiple energy management scenarios based on a combination of three dimensions: grid-connected / off-grid mode, load regulation mode, and energy storage backup mode; S02, selecting a target energy management scenario from the multiple energy management scenarios; S03, acquiring real-time data on current grid-side power, photovoltaic power generation, energy storage SOC, and grid electricity price; S04, calculating the current equivalent total load power, battery charge / discharge constraint power, photovoltaic target power, and battery target power based on the real-time data and the dimensional constraints in the target energy management scenario, and generating corresponding scheduling instructions; S05, managing the controllable load switch, photovoltaic equipment, and energy storage battery based on the scheduling instructions, and updating the state variables.

1. Name of the product in this design: Graphical User Interface for the Status of Energy Storage Systems in Electronic Devices. 2. Intended use of this design: for use in an electronic device. 3. The key design features of this product are its graphical user interface content. 4. The picture or photo that best illustrates the key design points: Design 1 front view. 5. The design for which protection is sought includes color. 6. Design 1 is designated as the basic design. 7. Purpose of the graphical user interface: This product design is used for operating and displaying the status of the energy storage system. 8. Other situations requiring explanation are illustrated in the diagram: Design 1's main view is the initial interface where all states of the energy storage system are displayed simultaneously during initialization. The icons on the upper left, from left to right, display the energy storage system's weather warning, the grid being out of power, and the number of power outages. The upper center displays the current time. The icons on the upper right, from left to right, display the screen's Bluetooth being enabled, the energy storage system being connected, and the screen's battery level. The middle left, from top to bottom, displays the ambient temperature and humidity. The middle center, from top to bottom, displays the energy storage system's savings amount, battery information, and remaining charging / discharging time. The middle right, from top to bottom, displays the energy storage system's input power and output power. The icons on the lower left, from left to right, display the energy storage system's default alarm, power mode, fast charging mode, silent mode, energy-saving status (ECO), and output memory mode. The icons on the lower right, from left to right, display the energy storage system's photovoltaic power generation status and grid connection status. The main views of designs 1-10 are the same below. In Design 1, when the energy storage system is in a discharging state, the interface changes from the main view of Design 1 to the interface state diagram of Design 1. In Design 2, when the energy storage system is in a fast charging state, the interface changes from the main view of Design 2 to the interface state diagram of Design 2. In Design 3, when the energy storage system is in a slow charging state, the interface changes from the main view of Design 3 to the interface state diagram of Design 3. In Design 4, when the energy storage system is in a fault state, the interface changes from the main view of Design 4 to the interface state diagram of Design 4. In Design 5, when the energy storage system is in "Hercules Mode," the interface changes from the main view of Design 5 to the interface state diagram of Design 5. In Design 6, when the energy storage system is in a weather warning or discharging state, the interface changes from the main view of Design 6 to the interface state diagram of Design 6. In Design 7, when the energy storage system is in a grid outage state, the interface changes from the main view of Design 7 to the interface state diagram of Design 7. Figure 8 shows the interface of the energy storage system changing from the main view of Design 8 to the interface change state diagram of Design 8 when the display screen shows the power level, the energy storage system is in connected state, Hercules mode, discharge mode, fast charging and discharging state, silent mode, energy saving state (ECO), output memory mode, photovoltaic power generation state, and grid connection state. Figure 9 shows the interface change state diagram of Design 9 when the display screen shows the power level, the energy storage system is in connected state, Hercules mode, discharge mode, discharge state, silent mode, energy saving state (ECO), output memory mode, photovoltaic power generation state, and grid connection state. Figure 10 shows the interface change state diagram of Design 10 when the display screen shows the power level, the energy storage system is in connected state, Hercules mode, discharge mode, fast charging state, silent mode, energy saving state (ECO), output memory mode, photovoltaic power generation state, and grid connection state. 9. Other situations requiring explanation: Other explanation: "X" in each interface represents a variable text content area, including text and / or numbers and / or symbols. Designs 2, 3, 4, 5, 6, 7, 8, 9, and 10 are all similar designs to Design 1.

The present disclosure discloses a winding and unwinding device for cables for PV power generation, comprising a first rotary rod, wherein one end of the first rotary rod is fixedly connected to a winding mechanism, the winding mechanism comprising a winding column, wherein one end of the winding column is rotatably connected to a first vertical plate via a pivot pin, wherein the side of the first vertical plate furthest from the winding column penetrates a drive shaft rotatably connected to an electric motor, wherein the side of the winding column furthest from the first vertical plate is rotatably connected to the second vertical plate via the pivot pin, wherein the top of the second vertical plate is fixedly connected to the long arc plate, wherein one side of the long arc plate is provided with a detent hole, the top of the inner wall of the detent hole being fixedly connected to a pressure spring.The present invention relates to the technical field of PV cables. The winding and unwinding device for cables used for PV power generation resists the PV cables by means of a rounded sliding tray to prevent the PV cable from coming loose and falling outwards during winding; and the small sliding rod is opposed by a stop to prevent the winding column from causing the small sliding rod to wobble and shift during winding, which would result in incomplete resistance of the rounded sliding tray.

The application discloses a hydrogen-doped natural gas purifying hydrogen energy station by using a multistage membrane separation method, and belongs to the technical field of hydrogen purification. The hydrogen-doped natural gas purifying hydrogen energy station solves the problem that it is difficult to purify hydrogen-doped natural gas to obtain standard hydrogen gas required by a hydrogen fuel cell in the prior art. The multistage membrane separation method purifying system is connected with a town hydrogen-doped natural gas pipe network. The permeation side of the multistage membrane separation method purifying system is sequentially connected with a hydrogen gas compression unit, a hydrogen gas storage unit and a hydrogenation area. An intelligent control system comprises a controller and a visual screen. The controller is used for controlling the multistage membrane separation method purifying system, and the visual screen is used for displaying the operation condition of the hydrogen energy station. The hydrogen energy station can be applied to different pressure levels of hydrogen-doped natural gas pipes to extract hydrogen gas for gas supply and energy supply.

The invention relates to the technical field of electric power, and provides a wind and light electricity abandoning and photo-thermal combined heat storage power generation system and a control method. The photo-thermal collection module and the electric heater are configured to heat the low-temperature molten salt output by the low-temperature molten salt tank into high-temperature molten salt; the photo-thermal collection module and the electric heater are configured to convey the high-temperature molten salt into the high-temperature molten salt tank for heat storage; the wind power generation module and the photovoltaic power generation module are configured to supply power to the electric heater; the communication module is configured to obtain real-time weather and / or light and wind abandoning information and / or power utilization information of a power grid; and the control module is configured to receive the information acquired by the communication module and control the photo-thermal collection module or the electric heater to work for heat storage, and the wind power generation module and / or the photovoltaic power generation module are / is controlled to work to supply power to the electric heater. By combining multiple heating modes, it is guaranteed that high-temperature fused salt heat storage is continuous and stable, and the peak shaving effect of a power grid is achieved.

The invention belongs to the field of monitoring equipment, particularly relates to campus park low-carbon energy consumption monitoring equipment and a use method thereof, and aims to solve the problem that existing traditional campus park environment monitoring equipment usually needs to be connected to a mains supply power grid to obtain power support. In order to solve the problem that most of existing monitoring equipment lacks effective protection measures, the invention provides the following scheme that the monitoring equipment comprises a supporting bottom plate, and moving wheels are fixedly mounted at four corners of the bottom of the supporting bottom plate; the protection shell is fixedly installed at the top of the supporting bottom plate, the top of the protection shell is open, and two rotating shafts which are symmetrically arranged rotatably penetrate through the inner walls of the two sides of the protection shell. And the top of the protective shell is provided with an opening, and a rotating shaft and a rotating cover plate rotationally penetrate through the inner walls of the two sides of the protective shell. When the equipment does not work, the rotating cover plate can be closed.

One or more embodiments relates to a smart inverter used in a photovoltaic (PV) generation system. In one embodiment, the smart inverter includes a PV control logic device; and at least one low pass filter coupled to and in communication with the at least one PV control logic device.