62 results about "Solar inverter" patented technology

The invention relates to a flyback circuit over-current protection circuit realized based on an operational amplifier. The flyback circuit over-current protection circuit comprises a power supply driving module, an output voltage module, a current sampling module, a current comparison module and an over-current protection switch module. According to the circuit, a Hall sensor, a first operational amplifier chip U2, a first comparator U3 and a first triode Q2 are adopted for sequentially transmitting or processing signals, whether current exceeds a threshold value or not is judged through comparison, a result is fed back to a first driving chip U1, once the sampling current reaches a set value, a pin COMP of the first driving chip U1 is grounded through the first triode Q2, and the first driving chip U1 is driven by the first triode Q2. And the PWM waves are fed back to the first driving chip U1 and no longer output to drive the circuit to operate, so that the system can quickly achieve the purpose of protection instead of transferring the pressure to other devices. The whole circuit is simple in structure, timely in overcurrent protection, accurate in judgment and high in reliability, and can be widely applied to circuit scenes needing an auxiliary power supply with relatively high stability for power supply, such as solar inverters, smart home and other products.

The invention provides a solar inverter grid-connected protection method, device and equipment and a storage medium. The method comprises the following steps: collecting power grid state data in real time through a virtual synchronous machine of a grid-connected inverter; according to a power grid supporting capability index of the power grid state data and historical waveform data, determining a voltage extreme value and a waveform distortion feature vector in a future preset duration, and generating a dynamic protection threshold set; when any threshold in the dynamic protection threshold set is triggered, generating a hash value according to the current fault waveform data, performing row distributed verification in the block chain node network, and outputting a verification result identifier; and performing multi-mode protection on the grid-connected inverter according to the fault level of the verification result identifier. Through the implementation of the scheme of the invention, the protection strategy can be adaptively adjusted according to the real-time state and waveform trend of the power grid, and the accuracy and response speed of fault recognition are remarkably improved.

This utility model discloses an overload protection device for a solar inverter, including an inverter housing with side plates and a front plate fixedly connected. The side plates have heat dissipation grilles embedded within them and fixedly connected. Each grille has several adjacent grille units, and each unit has grille holes. The front plate has a thermochromic strip fixedly connected to it. The beneficial effect of this solar inverter overload protection device lies in its comprehensive application of passive heat dissipation measures and active thermochromic measures, reminding operators to pay attention to the internal temperature of the inverter housing and taking timely measures to prevent overload when the temperature is too high.

A system (100) for dual-source sustainable energy production in a vehicle (105) is disclosed A slidable solar panel (110) placed on a rooftop of the vehicle convert solar energy into electrical energy. The slidable solar panel includes a plurality of wheels (145) drag the slidable solar panel over a boot space of the vehicle for ensuring standard roof functionality. A plurality of wind fans (115) including a plurality of wind blades (120) capture the wind energy for converting into mechanical energy and at least two generators (130a, 130b) convert the mechanical energy into electrical energy. An energy storage unit (135) store electricity produced from the slidable solar panel and the plurality of wind fans to extend the driving range. A solar inverter (140) converts electrical energy stored into alternating current for use by the vehicle.

The present application relates to the technical field of solar energy, and discloses a solar inverter with a heat dissipation structure, which comprises a casing, a heat dissipation fan, a wiring terminal, a ventilation grille, a control element, a transformer, a power inversion module, heat dissipation fins and a photovoltaic panel. The control element is coupled with a toothed air duct control system, which generates toothed channel thermal resistance values and grille resistance values based on toothed inlet temperature, toothed outlet temperature, toothed channel pressure difference and power inversion module electric power state through a toothed thermal resistance construction module. Two heat dissipation fan rotation speeds are distributed according to the toothed channel thermal resistance values and the temperature difference between the two toothed outlet temperatures through a double-fan bias control module. When the grille resistance reaches a trigger condition, the two heat dissipation fans form an alternating rotation speed pulse through a grille resistance cleaning module, and the allowed output power of the power inversion module is linked and controlled through an inversion output coordination module.

1. The name of the design product: solar inverter battery case. 2. The use of the design product: for solar inverter battery case. 3. The design features of the design product: in shape. 4. The picture or photo that best shows the design features: perspective view 2.

A solar inverter includes a housing, at least one circuit board disposed in the housing, a current sensor disposed on the circuit board, an arc detection coil disposed on the circuit board, a self-test circuit disposed on the circuit board, and at least one DC input terminal disposed on the housing and connected to the circuit board. The self-test circuit is configured to deliver a test signal for the arc detection coil to sense. The DC input terminal is configured to deliver current through the arc detection coil, and the current sensor is configured to detect the magnitude of the current through the DC input terminal.

1. The name of the design product: solar inverter. 2. The use of the design product: the device for converting photovoltaic direct current into alternating current. 3. The design points of the design product: in shape. 4. The picture or photo that best shows the design points: perspective view 1.

The application discloses a solar inverter system, and particularly relates to the technical field of solar power generation and power electronic control, which comprises the following modules: a photovoltaic module string dynamic reconstruction module, which dynamically adjusts the parallel connection topology of the module string through a matrix switch network, and isolates mismatched modules to output maximum power point direct current; a multi-modal MPPT and predictive control module, which fuses a neural network to output an optimal duty cycle; a high-frequency isolated DC-AC power conversion module, which adopts an LLC resonance topology and dynamically adjusts resonance inductance and capacitance, and combines temperature self-adaptive frequency and dead zone control to perform efficient conversion; an intelligent grid-connected and energy storage interface module, which supports virtual synchronous generator charging and discharging management, and bypasses the converter to reduce no-load loss when off-grid and light load; and a thermoelectricity cooperative self-adaptive cooling module, which adjusts cooling intensity based on loss feedforward prediction, and recycles waste heat to feed back to a direct current bus. The application improves solar inverter power generation efficiency, power conversion energy efficiency and system energy utilization rate.

Solar Inverter Control Box

1. The name of the design product: solar inverter. 2. The use of the design product: the device for converting photovoltaic direct current into alternating current. 3. The design points of the design product: the combination of shape and pattern. 4. The picture or photo that best shows the design points: perspective view 1.

1. Name of the product in this design: Solar Inverter. 2. Purpose of this design: To convert direct current (DC) generated by solar panels into alternating current (AC) for use in homes or on the power grid. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: a 3D model.

The utility model discloses an anti-reverse connection type solar inverter, which comprises an inverter main body, two plug-in fixing mechanisms are symmetrically arranged at the bottoms of the two sides of the inverter main body, a first joint and a second joint are symmetrically arranged on one side, adjacent to the plug-in fixing mechanisms, of the inverter main body, one end of the first joint is electrically connected with a first diode, and the other end of the first joint is electrically connected with a second diode. According to the utility model, the first joint and the second joint are coated with the anti-corrosion paint with different colors, so that the distinguishing is convenient, the probability of misconnection is reduced, the two joints are electrically connected with the diodes, and the unilateral conductivity of the diodes is utilized to prevent reverse connection, so that the condition of equipment damage caused by reverse connection is avoided, and the service life of the equipment is prolonged; through the installation of the plug-in fixing mechanism, the inverter main body is suspended and installed by using the limiting suspension hole and the screw rod, and meanwhile, the rotary screwing plate is used for driving the fastening nut to press and fix, so that the installation and disassembly are performed without a professional tool, and the later disassembly and maintenance are facilitated.

The utility model relates to the technical field of solar inverters, and discloses a solar inverter convenient to overhaul, which comprises a solar inverter, mounting plates are fixedly arranged on two sides of the solar inverter, a shell covers the outer side of the solar inverter, a plurality of first fixing plates are fixedly arranged on two sides of the shell, and a plurality of second fixing plates are fixedly arranged on the outer side of the shell. A fixing rod is fixedly arranged between every two first fixing plates, two second fixing plates are fixedly arranged at the top of the mounting plate, the second fixing plates are located between the two first fixing plates, and the fixing rods are buckled in the second fixing plates in a sliding mode. When the solar inverter is installed, the plurality of first fixing plates on the two sides of the shell can be buckled on the outer sides of the second fixing plates, and meanwhile, the fixing rod between the two first fixing plates can be buckled with the interiors of the second fixing plates, so that fixation is carried out, disassembly and assembly are convenient, and the solar inverter is fixedly installed through the installation plate.

The utility model discloses a solar electric valve which comprises a shell, connecting flanges are arranged on the two sides of the shell, a connecting column is arranged on the outer wall of the shell, a mounting box is arranged at the top end of the connecting column, a solar charging panel is arranged at the top end of the mounting box, a first supporting frame is arranged in the mounting box, and a storage battery is arranged at the top end of the first supporting frame. A second supporting frame is arranged at the bottom end of the first supporting frame, and a solar inverter is arranged at the top end of the second supporting frame. The electric valve has the beneficial effects that devices in the mounting box can be rapidly cooled by arranging the heat dissipation assembly, the situation that the internal temperature of the mounting box is too high, consequently, the internal devices are damaged, and normal operation of the electric valve is affected is prevented, and the heat dissipation assembly enables gas in the mounting box to be in a rapid flowing state by arranging a heat removal fan, an air inlet and an air outlet hole; and a dustproof net in the heat dissipation assembly can prevent external dust from entering the interior of the mounting box in the heat dissipation process, so that normal operation of the devices is ensured.

The utility model discloses a miniature solar inverter housing, which comprises a housing main body, the upper surface of the housing main body is provided with a limiting chute, a top cover is inserted in the limiting chute, and the lower end of the housing main body is sleeved with a fillet bottom plate. According to the miniature solar inverter shell, when a miniature solar inverter is maintained through the top cover, only the cover on the corresponding side needs to be opened, the whole miniature solar inverter does not need to be dismantled, the number of dismantled screws is reduced, and the effects of improving the maintenance efficiency, reducing the maintenance difficulty and facilitating daily maintenance are achieved; and after the miniature solar inverter shell is mounted on the wall surface through the round-corner bottom plate, four bolts on the wall do not need to be dismounted, and only two bolts at one end of the round-corner bottom plate need to be dismounted, so that the effects of simplifying the maintenance process and protecting the wall surface and the mounting structure are achieved.

The utility model provides spraying equipment for processing a solar inverter shell, and particularly relates to the technical field of processing of the solar inverter shell, the spraying equipment for processing the solar inverter shell comprises a base, the top of the base is fixedly connected with a fixing frame, and the top of the fixing frame is fixedly connected with a material box. A second motor is started to drive a two-way screw rod to rotate, so that two protective covers are close to each other and are buckled, a rotating disc is arranged in two first through grooves, a gap is reserved between the inner wall of each first through groove and the rotating disc, and a fixing plate is arranged between two second through grooves, so that paint can be effectively prevented from splashing out, dripping paint can be effectively prevented from being placed in a material groove, and the service life of the paint is prolonged. And a discharging hole and a discharging pipe are arranged, so that cleaning or discharging is convenient, spraying operation is more convenient, it is guaranteed that the paint cannot splash to affect workers, after spraying is completed, the protective cover is opened, the air cylinder is retracted, the paint can be taken out, and then follow-up shell spraying is conducted.

The utility model provides a waterproof solar inverter shell, which comprises a solar inverter body, the solar inverter body comprises an inverter main body and a display screen, the display screen is arranged on the front surface of the inverter main body, the top and the bottom of the inverter main body are fixedly provided with mounting lifting lugs, and the mounting lifting lugs are arranged on the front surface of the inverter main body. A sliding column is slidably connected to the installation lifting lug, a push plate is fixedly installed at one end of the sliding column, a long plate is fixedly installed at the end, away from the push plate, of the sliding column, a hollow column is fixedly installed on the long plate, an annular inkpad is bonded to the hollow column, a hollow cover is fixedly installed on the back face of the installation lifting lug, and a guide assembly is arranged on the long plate. The solar inverter shell not only is waterproof, but also is convenient to mark the installation position of a screw during installation, and a hole cannot be slantly punched after marking, so that the problems that the hole cannot be aligned and the hole needs to be punched again due to the fact that the hole is slantly punched by a worker are solved.

The utility model provides a solar inverter housing capable of improving heat dissipation efficiency, and especially relates to the technical field of solar inverters, the solar inverter housing comprises a solar inverter body, when the internal temperature of the solar inverter body is relatively high, a baffle plate can slide upwards through a handle, and an elastic sheet is extruded, so that the heat dissipation efficiency of the solar inverter housing is improved. When the solar inverter body is used, the baffle slides out of the installation groove, the second heat dissipation holes are exposed to the outside, the baffle is matched with the first heat dissipation holes, the heat dissipation efficiency of the solar inverter body is improved, when the solar inverter body is not used, the baffle can slide into the installation groove and is limited through the elastic pieces, and when the solar inverter body is used, two holes are drilled in a wall firstly, then the first installation hole in the fixing plate coincides with one hole, and therefore the heat dissipation efficiency of the solar inverter body is improved. The fixing base slides left and right, the position of the rotating column is adjusted, the threaded rod is screwed, the height of the rotating column is adjusted, it is guaranteed that the second mounting hole coincides with the other preset hole, and then the expansion bolt is used for fixing, so that installation of the solar inverter shell is facilitated.

Solar inverters and systems, controllers, and methods of control for solar inverters are disclosed. A method for optimizing a solar inverter can include determining a maximum temperature setpoint, modifying a temperature start point below the maximum temperature setpoint, adjusting a current temperature of a solar inverter from the temperature start point towards the maximum temperature setpoint by regulating a component temperature of a component of the solar inverter, and optimizing the current temperature of the solar inverter via making a best choice between power limiting and selective disabling of components within the solar inverter. The method can be embodied on a non-transitory computer-readable medium storing instructions that, when executed by a processor of a computing system, causes the computing system to perform the method.

The application provides a transformer for photovoltaic solar inverter power supply, a self-rotating heat exhaust cap also plays a heat dissipation role to effectively exhaust the heat generated in the working process of a magnetic core mechanism and a winding mechanism. Two sliding blocks in a waterproof threading mechanism are pushed away from each other and compressed to move the compression springs, so as to ensure that the threading hole has a larger space to accommodate the conductive wire. The input conductive wire of the transformer is threaded through the threading hole in the soft sealing threading block. The output conductive wire is threaded through the threading hole in the other soft sealing threading block. The sliding blocks are loosened, the compression springs return to the elastic deformation, the extrusion block is inserted into the extrusion groove and extruded against the soft sealing threading block through the driving of the sliding blocks, so as to fix the input conductive wire and the output conductive wire in the two soft sealing threading blocks. Rainwater is prevented from entering the shell through the threading hole along the wire.

The utility model discloses a kind of supports for solar inverter, including supporting chassis, the upper surface of the supporting chassis is fixed with fixed frame, the top end inboard of the fixed frame is provided with first bearing, the inboard of the first bearing is provided with first threaded column, the top end of the first threaded column is fixed with first hand crank, the connecting place of the first threaded column and supporting chassis is provided with second bearing, can adjust protective housing and water receiving bin to lift at any time, so that protective housing rises, staff to the inverter inside protective housing is maintained or checked, otherwise, when protective housing is lowered to the lowest end, inverter can be completely wrapped, rain is prevented, secondly water receiving bin and drip end can collect rainwater, concentratedly discharge, so as to prevent rainwater from penetrating protective housing, avoid that most structure of support for solar inverter is too simple, rain cannot be effectively prevented, leading to cannot cope with bad weather.

The utility model relates to the technical field of solar inverter manufacturing, and discloses a shaping device for solar inverter coil processing. Comprising a supporting frame, a processing box is fixedly connected to the top of the supporting frame, and an air cylinder located on a fixing support is started, so that the air cylinder drives piston rods on the periphery and extrusion blocks below to reciprocate up and down together, and therefore the air cylinder pushes processing rods below and shaping heads below connecting blocks to move towards a solar inverter coil; and the shaping head is in contact with the middle part of the solar inverter coil, so that the processing and shaping work of the solar inverter coil is completed, and meanwhile, the shaping head and the shaping block are both made of wear-resistant materials, and flexible contact surfaces are arranged at the tail ends of the shaping head and the shaping block, so that the shaping head and the shaping block are not prone to deformation. And the coil can be effectively prevented from being damaged, so that the shaping precision can be effectively ensured under the condition of ensuring convenient operation.

1. The name of this design product: solar controller (MPPT). 2. Purpose of this design product: This design product is used to control multiple solar cell arrays to charge batteries and batteries to power solar inverter loads. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: 3D rendering 1.

The invention belongs to the technical field of solar inverters, particularly relates to a heat dissipation structure of a solar inverter, and aims to solve the problem that a large amount of dust is easy to accumulate in an internal heat dissipation structure of an existing photovoltaic inverter, and provides the following scheme that the heat dissipation structure comprises a main case, and a shell is fixed to the outer side of the main case through bolts; air inlet grid plates which are distributed in an array mode are fixed to one side of the shell, exhaust side grooves which are distributed in an array mode are formed in the two sides of the shell and the two sides of the mainframe box, and an inverter body is fixed to the bottom of the mainframe box. When cleaning is needed, a lifting screw rod lifts a lifting machine box to the top, along with rotation of a wind wheel, a cleaning brush is in a horizontal state due to centrifugal force, the cleaning brush is driven by an internal second driving motor to rotate, the side walls of fan blades at the circumferential position are cleaned, dust is discharged along with airflow, and the lifting machine box is driven to descend through rotation of the lifting screw rod; the fan blades are cleaned completely, and after cleaning is completed, the cleaning brush is stored in the brush storage groove.

This invention provides a power management system and control method for a string-type solar inverter that provides a stable power supply to an AC grid. [Solution] The system includes a first DC / DC converter 114 coupled between a first solar panel string 112 and a DC voltage bus, a large power point (MPP) tracker 101 that performs a maximum power point tracking (MPPT) control scheme for the first DC / DC converter, a power reservoir 102 coupled between a second solar panel string 122 and a DC voltage bus and including a second DC / DC converter 124, and an inverter 154 coupled between the DC voltage bus and a power grid that operates in multiple modes including grid forming (GFM) mode and grid following (GFL) mode, in GFM mode, the second DC / DC converter adjusts the voltage on the DC voltage bus.

A system includes a maximum power point (MPP) tracker (101) coupled between a first solar panel string (112) and a DC voltage bus (Vdc), wherein the MPP tracker (101) includes a first DC / DC converter (114) and is configured to perform a maximum power point tracking (MPPT) control scheme on the first DC / DC converter (114), a power reservoir (102) coupled between a second solar panel string (122) and the DC voltage bus (Vdc), wherein the power reservoir (102) includes a second DC / DC converter (124), and an inverter (154) coupled between the DC voltage bus (Vdc) and a power grid (154), wherein the inverter is configured to operate in multiple modes including a grid-forming (GFM) mode and a grid-following (GFL) mode, and wherein in the GFM mode, the second DC / DC converter (124) is configured to regulate a voltage on the DC voltage bus (Vdc).

A system includes a maximum power point (MPP) tracker coupled between a first solar panel string and a DC voltage bus, wherein the MPP tracker includes a first DC / DC converter and is configured to perform a maximum power point tracking (MPPT) control scheme on the first DC / DC converter, a power reservoir coupled between a second solar panel string and the DC voltage bus, wherein the power reservoir includes a second DC / DC converter, and an inverter coupled between the DC voltage bus and a power grid, wherein the inverter is configured to operate in multiple modes including a grid-forming (GFM) mode and a grid-following (GFL) mode, and wherein in the GFM mode, the second DC / DC converter is configured to regulate a voltage on the DC voltage bus.

The utility model discloses an intelligent switching solar inverter power supply, which comprises a solar cell panel, a charging and discharging intelligent controller, a battery pack, a switching circuit and an inverter, a plurality of mutually independent storage batteries are arranged in the battery pack, the charging and discharging intelligent controller is connected between the solar cell panel and the battery pack, and the inverter is connected with the charging and discharging intelligent controller. The battery pack is connected with the inverter, the storage batteries are detected one by one and are controlled to be charged and discharged, the switching circuit is connected between the battery pack and the inverter, and the charging and discharging intelligent controller is connected with the switching circuit and selects the storage batteries which work normally to supply power to the inverter. According to the intelligent switching solar inverter power supply of the utility model, real-time detection of the storage batteries can be carried out through the detection circuit, a switch corresponding to a defective storage battery can be turned off, switches corresponding to other normal storage batteries can be turned on, intelligent switching can be realized, and continuous power supply for electric equipment can be realized.

1. Name of the product in this design: Solar inverter housing (2). 2. Purpose of this design: For use as a housing for a solar inverter. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: 3D rendering 1.