192results about How to "Guaranteed power supply" patented technology

The invention discloses a high-flow-resistance multi-point observation type fish school monitoring underwater robot based on multi-source data fusion. The high-flow-resistance multi-point observation type fish school monitoring underwater robot comprises a shell, a self-adaptive ocean current resistance system and an energy system. The self-adaptive ocean current resistance system comprises an ocean current information detection module and a PID control algorithm real-time regulation and control propeller module; the ocean current information detection module is used for collecting ocean current information in real time, including water velocity, direction and turbulence intensity; the control algorithm real-time regulation and control thruster module regulates and controls the power and direction of a thruster in real time by utilizing a PID control algorithm according to ocean current changes, and it is ensured that the underwater robot keeps stable in complex ocean currents; the telescopic multi-sensor fusion system collects multi-dimensional data of a fish school by combining a plurality of sensors, and performs fusion analysis on the data by using a deep learning algorithm, thereby realizing high-precision fish school identification and tracking. And an integrated ocean current-solar energy system enables the underwater robot to have long-time cruising ability.

The invention discloses a power distribution network collaborative recovery method and system considering an interconnected microgrid and network reconstruction, and belongs to the technical field of electrical engineering, and the method specifically comprises the steps: simulating and guiding an EV running on a traffic network to enter a nearby charging station for refuge in a pre-disaster stage, and participating in vehicle grid-connected reverse power transmission in a post-disaster stage; in the post-disaster stage, according to the sensed line fault condition, the EV information obtained through simulation and the information of the distributed resources, a mixed integer second-order cone model containing the scheduling position of a rush repair team, the output condition of the distributed resources, the power supply range of each micro-grid and the interconnection state is obtained through optimization, and post-disaster load rapid recovery and line repair are carried out; and solving the established mixed integer second-order cone model by adopting a commercial solver CPLEX to obtain the dynamic micro-grid region division and interconnection state, the line switch state and the output condition of each distributed resource at different moments in the fault recovery time period.

The invention discloses a spare power automatic switching method for an emergency power supply of a mining generator set, and the method comprises the steps: starting one or more generator sets after two paths of commercial power fail and lose power, controlling breakers of an I-section commercial power incoming cabinet and an II-section commercial power incoming cabinet to be switched off at the same time, and then automatically transmitting a switching-off signal to a non-security load breaker cabinet of an I-section bus; the generator set is firstly switched on when an on-load condition is reached; the other generator sets are switched on synchronously in succession; after a section I commercial power incoming cabinet and a non-security load switch cabinet circuit breaker are confirmed to be switched off, a switching-on instruction is sent to a generator set access cabinet, after switching-on succeeds, power is automatically provided for a primary security load of a main ventilator, an auxiliary shaft elevator or a strong drainage pump, normal power supply of the security load is guaranteed under the condition that commercial power is abnormal, and the safety of the security load is guaranteed. And underground personal and equipment safety is guaranteed.

The invention discloses a high-precision eccentricity-adjustable hole milling device and a using method thereof. The device comprises a cutter 1, an output shaft, a main shaft 2, an inner sleeve 3, an outer sleeve 8, a sleeve shell 7 and three transmission mechanisms. According to the device, three independent transmission systems are used for achieving rotation, revolution and feeding motion of a cutter, and the eccentric position of the cutter is accurately controlled by combining the piezoelectric micro-displacement technology. The first motor drives the outer sleeve to rotate around the axis of the outer sleeve, the second motor drives the spindle to rotate at a high speed for cutting, and the third motor controls the lead screw to complete axial movement of the tool. And the built-in conductive slip ring ensures stable power supply of the rotating part. The design is particularly suitable for precision machining tasks needing to flexibly and accurately control the cutting path, and excellent operation flexibility and machining precision are provided.

According to the intelligent wagon balance management system, the technologies of license plate recognition, RFID technology, central processing unit, multimedia prompt, video monitoring, mobile communication, data storage and the like are integrated, and efficient and accurate weighing of industrial logistics vehicles is achieved. The system automatically detects a vehicle and guides a driver to complete weighing, and prevents omission through APP reminding, thereby ensuring accurate recording of weight information. In an emergency, the abnormal processing module guarantees stable operation of the system, and the remote monitoring interface enables managers to supervise the weighing condition in real time, thereby improving the logistics efficiency and safety.

The utility model provides a high-capacity mobile energy storage power distribution vehicle which comprises a second-class chassis, a mute type compartment is arranged on the second-class chassis, and the mute type compartment is sequentially provided with a fire-fighting cabin, a battery cabin, an equipment cabin and a cable cabin. A battery cabinet is arranged in the battery compartment, a battery pack is placed on the battery cabinet, an electric control cabinet, a charging pile and a charging gun are arranged in the equipment compartment, and the charging pile is electrically connected with the battery pack and used for charging an electric vehicle; a power input cabin is arranged on the right skirt edge of the second-class chassis and provided with a mains supply connector. The energy storage power distribution vehicle has the characteristics of millisecond-level access, zero flicker of power supply, silence, environmental protection, flexibility, large energy storage capacity and the like, when accidents such as power failure occur, the energy storage power distribution vehicle can respond in millisecond and timely supply power to the outside in emergency, the charging pile is arranged, the liquid cooling over-charging and quick charging functions can be realized by the charging pile, and emergency guarantee is provided for the electric vehicle.

The utility model provides an automobile intelligent anti-theft device which comprises a fixing piece used for fixing an automobile remote control key, an unlocking piece, a locking piece and a control mechanism used for controlling the unlocking piece and the locking piece to act, and the unlocking piece is arranged above an unlocking key of the automobile remote control key to press the unlocking key. The locking piece is arranged above a locking key of the automobile remote control key so as to press the locking key. An original automobile circuit and an original automobile key circuit do not need to be changed, when the automobile key lock is additionally installed, only the fixing piece needs to be placed in an automobile, the original automobile key is installed in the fixing piece, and the unlocking key and the locking key of the original automobile key are pressed by controlling the unlocking piece and the locking piece to act, so that keyless entry can be achieved, and the pressing precision is high.

The invention discloses a direct-current anti-surge circuit and protection equipment, and relates to the technical field of direct-current anti-surge circuits, and the circuit is characterized in that the first end of a charging capacitor is connected to the first end of a first divider resistor and the cathode of a first diode, and the second end of the charging capacitor is connected to the second end of the first divider resistor and the anode of the first diode; the current-limiting resistor and the first end of the first switch element are jointly connected to the anode of the first diode, and the control end of the first switch element is connected to the cathode of the first diode; the current-limiting resistor and the second end of the first switch element are jointly connected to an output voltage negative electrode; the first divider resistor is connected to the cathode of the second diode through the second divider resistor, the cathode of the second diode is connected to the output voltage anode, and the anode of the second diode is connected to the first end of the charging capacitor. In this way, at the moment of power-on, current flows to the negative electrode of the input voltage through the current-limiting resistor, so that the direct-current power supply is not subjected to overlarge impact current.

The invention discloses an electric power resource adjusting method, device and equipment for coping with extreme weather, and the method comprises the steps: obtaining the duration time when the extreme weather occurs and the power supply adequacy parameter data corresponding to the duration time, thereby obtaining the time sequence of the power supply adequacy parameter; performing normalization processing to obtain a power supply adequacy parameter normalization value; calculating an influence coefficient of the extreme weather in the next time period on the power supply adequacy based on the normalized value and the power supply adequacy parameter data; calculating a predicted value of the extreme weather in the next time period on the power supply adequacy according to the influence coefficient of the extreme weather in the next time period on the power supply adequacy; and adjusting the resource configuration of the power system according to the predicted value of the power supply adequacy of the extreme weather in the next time period. The influence of the extreme weather condition on the adequacy of the power system can be predicted, the output condition of the thermal power generating unit is adjusted in time according to the adequacy index, the research is beneficial to guaranteeing the power supply after the extreme weather, and the stable operation of the power system is maintained.

The invention discloses an autonomous operation platform for offshore sand transportation and hydraulic reclamation, which is characterized in that a platform main body is arranged on a double-floating-body structure, a sand transportation pipe assembly part is arranged in a cabin body of the platform main body, and a plurality of groups of autonomous anchor retracting and releasing assemblies are uniformly distributed at the bow part and the stern part of the platform main body; the propelling systems are distributed on the periphery of the platform body and the double-floating-body structure. The power system is installed in a cabin of the platform body and used for driving the propelling system and the automatic anchor retracting and releasing assembly to work. The shipborne autonomous control system and the anchoring positioning monitoring system are installed in a cabin of the platform body, and the shipborne autonomous control system is in control connection with the anchoring positioning monitoring system, the sand conveying pipe assembly, the autonomous anchor winding and unwinding assembly, the propelling system and the power system and conducts data interaction with the shore-based control system through the communication module. According to the invention, high-precision self-positioning operation of the platform can be realized; meanwhile, remote monitoring and control over the sand conveying hydraulic reclamation operation platform can be achieved in a shore-based control center, the preparation time before operation is shortened, meanwhile, the operation precision and the production time rate are improved, and the operation cost is reduced.

The self-adaptive adjusting device for the marine winch cable comprises an adjusting structure, an energy-saving structure and an impurity cleaning structure are fixed to the upper side of the adjusting structure, the impurity cleaning structure is located on the left side of the energy-saving structure, a material guiding structure is arranged on the right side of the adjusting structure, and a drying structure and a winding limiting assembly are fixed to the material guiding structure; the winding limiting assembly is located on the lower side of the drying structure, the adjusting structure comprises a bottom plate, a moving assembly is slidably connected to the bottom plate, a self-adaptive assembly is fixed to the upper side of the moving assembly, the material guiding structure comprises a material guiding frame, the material guiding frame telescopically adjusts the position of a material guiding auxiliary drying assembly through a telescopic structure, and a third material guiding roller is arranged on the left side of the material guiding auxiliary drying assembly. The self-adaptive adjusting device for the mooring rope of the marine winch has the advantages that the mooring rope of the marine winch is automatically adjusted, the surface of the mooring rope is automatically cleaned, the mooring rope is automatically dried, the mooring rope is automatically limited, and normal power supply is guaranteed in case of emergency.

The invention discloses a full silicon carbide voltage sag treatment device and a control method. The device comprises a first silicon carbide static change-over switch K1, a second silicon carbide static change-over switch K2, a third silicon carbide static change-over switch K1, a third silicon carbide static change-over switch K3, an energy storage converter, an energy storage battery and three ports I, II and III, by utilizing the device, a fault source of voltage sag is positioned and treated by detecting the voltage state of a port, and grid connection / grid disconnection / removal is carried out on the energy storage converter according to actual requirements through an off-grid control algorithm and a grid connection control algorithm, so that rectification / inversion mode conversion is realized, and the reliability of the energy storage converter is improved. Input and output power is adaptively adjusted according to the change of power grid frequency, and bidirectional energy flow and peak load shifting are realized. According to the invention, the cost is low, rapid voltage sag treatment with millisecond-level response time can be realized, power supply of a sensitive load can be effectively guaranteed when a power grid fails, and the energy storage converter has a self-adaptive peak regulation function and has a certain practical value.

The invention relates to the technical field of energy control, in particular to a multi-input-source electric power system control method, which comprises the following steps of: connecting wind power, hydraulic power, solar energy and / or fuel gas and fuel oil power generation equipment into an energy tribe to obtain power generation data correspondingly generated by wind power, hydraulic power, solar energy and / or fuel gas and fuel oil power generation, obtaining daily electricity demand data corresponding to the energy tribe; acquiring daily extra power consumption data corresponding to the energy tribe, and determining whether the energy tribe has residual generated power or not based on the power generation data, the daily power consumption demand data and the daily extra power consumption; and if yes, the charging priority of the energy storage battery pack in the energy tribe is called, and the energy storage battery pack is charged by the residual electric energy based on the charging priority. According to the invention, the management efficiency of the multi-input-source power system can be improved.

The present application relates to the technical field of power distribution control, and particularly relates to a power intelligent dynamic distribution method for a skid steer loader based on multi-working condition identification. The method comprises the following steps: performing skid steer loader multi-modal operation characteristic analysis on power states of skid steer loader multi-source operation data to generate skid steer loader multi-modal operation characteristic data; performing skid steer loader working condition characteristic analysis on the skid steer loader multi-modal operation characteristic data to generate skid steer loader working condition characteristic data; performing power demand characteristic analysis on working condition dynamic change trends based on skid steer loader real-time operation data and the skid steer loader working condition characteristic data to generate working condition dynamic change trend power demand characteristic data; and performing skid steer loader power distribution and dynamic optimization processing based on the working condition dynamic change trend power demand characteristic data to generate skid steer loader power distribution dynamic optimization data. The present application realizes efficient and energy-saving intelligent distribution of power under multi-working conditions of a skid steer loader.

The invention provides a pumped storage installation and continuous full generation hour demand analysis method, which comprises the following steps: S1, under the condition of not considering a pumped storage power station, carrying out annual production simulation 8760 power balance calculation to obtain an annual hour-by-hour power balance result; s2, counting the maximum power vacancy Pnmax and the maximum continuous power vacancy Enmax; s3, calculating the installed capacity Sn of the pumped storage power station and the continuous full power generation hours hn of the pumped storage power station; s4, Sn and hn are considered, annual production simulation 8760 power balance calculation is carried out again, and whether power vacancy exists in a new annual hourly power balance result or not is judged; s5, if power shortage exists, the steps S2 to S4 are executed repeatedly; and if the power shortage does not exist, taking the last calculated installed capacity of the pumped storage power station and the continuous full generation hours of the pumped storage power station as the installed capacity and the continuous full generation hours of the pumped storage power station required by the system. The installed capacity benefit of the pumped storage power station is fully exerted, and coal power and other conventional power supplies are replaced for installation.

The invention discloses an internal and external double-circulation waterproof heat dissipation device for intelligent illumination and an installation method thereof, relates to the field of intelligent street lamps, and aims to solve the problems that the distance between the installation position of a street lamp and a parking space of a road is insufficient, and the illumination brightness and range are insufficient due to the fact that charging services are provided for vehicles. According to the technical scheme, a lamp holder is slidably sleeved with a heat dissipation lens module, the heat dissipation lens module comprises an upper shell, the upper shell abuts against the top wall of the lamp holder, a lower frame is hinged to one end, protruding out of the outer edge of the lamp holder, of the upper shell, a concave lens matched with an illumination module is fixedly installed in the middle of the lower frame, and the upper shell is hollow and filled with sufficient heat conduction oil. A soaking disc is rotationally installed on the top wall of the upper shell in a sealed mode, a first impeller embedded into the upper shell is fixedly installed on one face of the soaking disc, and a second impeller making contact with outside air is fixedly installed on the other face of the soaking disc. And the influence on the lighting effect on the road caused by parking space obstruction is avoided.

The utility model relates to an intelligent feeder terminal with double output power supplies, which comprises a box body and a main power supply, a solar panel is arranged outside the box body, electric energy generated by the solar panel is input into the main power supply, and a standby power supply, a power supply control module, a power supply board, a main control board, a signal acquisition board and a liquid crystal display board are arranged in the box body. The standby power supply has energy storage and power supply functions, the main power supply is transmitted to the power panel after passing through the power supply control module, the power panel processes the power supply and then distributes the power supply to the main control board, the signal acquisition board and the liquid crystal display panel for use, and the power supply control module is provided with a detection unit which is used for monitoring the power supply condition of the power supply. Under the condition that the main power supply has power supply margin, the power supply control module distributes part of electric energy to the standby power supply for energy storage; when the main power supply is insufficient, the power supply control module controls the standby power supply to supply power to the power panel; by arranging the double output power supplies, the feeder terminal can stably and normally operate.

The invention discloses a source load-based island operation capability evaluation method and device and a medium. The method comprises the steps of generating an anticipated fault set according to operation data of a power distribution network; the method comprises the following steps: modeling a distributed power supply and a load of a disaster-affected power distribution network to obtain initial operation data of the distributed power supply and each load node; carrying out island division on the affected power distribution network according to the anticipated fault set and the initial operation data to obtain an island division result; and evaluating the operation capability of the island division result according to a preset index set to obtain an evaluation result. According to the source load-based island operation capability assessment method and apparatus, and the medium provided by the invention, the anticipated fault set and the initial operation data are comprehensively considered, the distributed power supply and the load are reasonably configured, the reliability of island division can be ensured, and the island operation capability can be effectively assessed according to the preset index set. The method can solve the problem that it is difficult to carry out effective island division and island operation capability evaluation on a disaster-affected power distribution network.

The utility model provides a temperature monitoring alarm device for a copying machine, which relates to the technical field of temperature monitoring alarm devices and comprises a temperature monitoring alarm, a display screen is fixedly connected to the surface of the temperature monitoring alarm, an alarm lamp is fixedly connected to the surface of the temperature monitoring alarm, a socket is arranged on the surface of the temperature monitoring alarm, and the display screen and the alarm lamp are fixedly connected to the surface of the temperature monitoring alarm. A mounting device is arranged on the surface of the temperature monitoring alarm and comprises a mounting block, the mounting block is fixedly connected with the temperature monitoring alarm, a fixing frame is slidably connected to the surface of the mounting block, a bottom plate is fixedly connected to the surface of the fixing frame, and the bottom plate is slidably connected with the mounting block. And the surface of the bottom plate is in threaded connection with a screw rod. According to the temperature monitoring alarm, the problem that the dismounting and mounting efficiency of the temperature monitoring alarm is influenced because the conventional temperature monitoring alarm usually needs to be fixed by turning a screw and the thread of a threaded hole is easy to slip in a frequent dismounting process is solved.

The application discloses a picking unmanned aerial vehicle and self-driving parking platform linkage picking system and method, the picking system comprises a self-driving parking platform and a picking unmanned aerial vehicle; the self-driving parking platform is provided with a fruit box, a first cable winding and unwinding device and a power supply; the first cable winding and unwinding device can wind a first cable connected between the picking unmanned aerial vehicle and the power supply; the picking system further comprises an auxiliary unmanned aerial vehicle; the auxiliary unmanned aerial vehicle comprises a second unmanned aerial vehicle body and a sliding buckle, and the first cable passes through the sliding buckle; the auxiliary unmanned aerial vehicle can make a cable part between the picking unmanned aerial vehicle and the first cable winding and unwinding device have a corner; the self-driving parking platform is provided with a second cable winding and unwinding device connected with the auxiliary unmanned aerial vehicle; and the first cable winding and unwinding device can wind a second cable connected between the auxiliary unmanned aerial vehicle and the power supply. In the application, the auxiliary unmanned aerial vehicle makes the first cable have a corner, so that the first cable can easily bypass a specific position of a fruit tree, prevents the first cable from being entangled with branches, and can avoid the self-driving parking platform from frequently moving to cooperate with the picking unmanned aerial vehicle to perform picking work, thereby improving picking efficiency.

The invention relates to the technical field of thermal power generating unit optimization, and discloses a thermal power generating unit coordinated optimization method. According to the method, by collecting and analyzing various data in real time, the deviation between the load demand and the unit output is accurately recognized, whether the current power generation capacity can meet the actual load demand or not is effectively checked, and possible gaps and redundancy are recognized in time; according to the method, targets of power generation cost minimization and environmental emission minimization are converted into target functions in a mathematical form, corresponding constraint conditions are set according to unit performance and market regulations, a scientific basis is provided for the scheduling process, a particle swarm optimization algorithm is used for calculation, and under the condition that multi-target optimization is considered, the scheduling efficiency is improved. According to the method, an efficient operation scheduling plan is generated, reasonable start-stop and output configuration of each unit is ensured, the problem that a traditional scheduling mechanism only focuses on a single target is solved, and the overall efficiency and flexibility of thermal power unit scheduling are improved.

The invention discloses an intelligent self-powered variable-inerter tuned mass damper, and relates to the field of structural vibration control. According to the invention, effective control of multi-mode vortex-induced vibration of a long-span bridge is realized, dependence of a semi-active TMDI on a power supply system is avoided, and installation convenience is improved. The variable inerter is introduced into the conventional TMD commonly used for vortex vibration control to form the TMDI, so that the TMDI has the characteristics of high static rigidity and low dynamic rigidity. And frequency adjustment and damping adjustment of the TMDI are respectively realized through the variable inerter and the direct current motor system. The large-span bridge multi-order modal vortex vibration control system can effectively control large-span bridge multi-order modal vortex vibration, meanwhile, the self-powered system of the large-span bridge multi-order modal vortex vibration control system can provide power for the control system, and remarkable installation convenience is achieved.

The invention discloses a special flame-retardant B1-level fire-resistant cable for metros, and particularly relates to the technical field of cables, the special flame-retardant B1-level fire-resistant cable comprises a cable body, the cable body comprises a plurality of cable cores, each cable core is wrapped by an insulating layer, the insulating layers are wrapped by a flame-retardant filling layer, the flame-retardant filling layer is wrapped by a flame-retardant layer, and the flame-retardant layer is wrapped by a flame-retardant layer. And the outer sheath is wrapped outside the flame-retardant layer. According to the invention, through the arrangement of the first telescopic part, the second telescopic part and other structures, when the outer sheath is burnt out due to a fire disaster, the first limiting part and the second limiting part can be far away from each other and do not play a limiting role any more, and the plugging head which is not limited is pushed out of the plugging groove through the pushing plate, so that the separation between cables is completed, and the use is convenient. Fire is prevented from spreading to other non-damaged areas, overall damage is reduced, the power failure range can be minimized, power supply of non-fire areas is guaranteed, overall influence of fire on a subway system is reduced, property loss is reduced, and safety of passengers is guaranteed.

The utility model relates to a kind of charging box, charging box assembly and unmanned aerial vehicle system, including box, first electric connector, second electric connector and third electric connector are provided on the box;The first electric connector is used to be electrically connected to commercial power;The second electric connector is used to be electrically connected battery, the second electric connector is electrically connected to the first electric connector, to allow the commercial power to charge the battery through the box;The third electric connector is used to be electrically connected load, the third electric connector is electrically connected to the second electric connector, to allow the battery to power the load through the box, the first electric connector is electrically connected to the third electric connector, to allow the commercial power to power the load through the box.

The invention discloses a power operation monitoring method for a low-voltage protection power supply place, and belongs to the technical field of power monitoring. The method comprises the following steps: acquiring power operation data of each power line in a low-voltage protection power supply place and temperature data of related environments and matched equipment; wirelessly transmitting the power operation data and the temperature data to an early warning system through an individual soldier terminal; the early warning system analyzes and compares the received power operation data and the temperature data, judges whether the power operation data and the temperature data are abnormal or not, and sends a judgment result to the operation and maintenance management terminal; collecting video data of a low-voltage protection power supply place and transmitting the video data to the early warning system in a wired mode; the early warning system receives video data of a low-voltage protection power supply place, judges whether the video data is abnormal or not by using an image movement detection method, and sends a judgment result to the operation and maintenance management terminal. Normal power supply of important lines of a low-voltage protection power supply place and a protection power supply site can be guaranteed.

The invention discloses a doorbell AC power supply circuit and a doorbell control method thereof. The doorbell AC power supply circuit comprises a control unit, an AC interface, an AC rectification and protection circuit, a short-circuit circuit, an AC judgment circuit, a DC-DC circuit, a battery charging circuit and a doorbell detection circuit. The corresponding end of the control unit is electrically connected with the corresponding ends of the short-circuit circuit, the AC judgment circuit, the DC-DC circuit and the doorbell detection circuit. The corresponding end of the AC rectification and protection circuit is electrically connected with the corresponding ends of the AC interface, the short circuit, the AC judgment circuit and the DC-DC circuit, and the corresponding end of the DC-DC circuit is also connected with the battery charging circuit. Through the efficient AC rectification and protection circuit and the DC-DC circuit, the system can convert an unstable AC power supply into a stable low-voltage DC power supply, and it is ensured that the doorbell system can stably operate under various power supply conditions.

A distribution network intelligent switch device, the device includes an electronic transformer measurement unit, a protection control unit, a circuit breaker, and an intelligent terminal; the electronic transformer measurement unit is connected to the protection control unit, the protection control unit is connected to the circuit breaker, and the protection control unit is wirelessly connected to the intelligent terminal. The device also includes an online energy acquisition unit, the online energy acquisition unit is respectively connected to the electronic transformer measurement unit and the protection control unit, and the online energy acquisition unit is used to obtain energy from the distribution line. The invention provides a distribution network intelligent switch device, which can effectively reduce the size and weight of the equipment, improve the intelligence level of the switch, simplify the operation process, and realize real-time and accurate monitoring of the distribution network status and fault judgment.

The invention provides a reliable automatic reclosing circuit breaker which comprises a three-phase power supply module, a full-phase rectification module, an MCU control module, an AD sampling module, a reclosing motor, a power supply output module, a switch J1, a switch J2, a switch J3 and a switch J4. The A-phase output, the B-phase output and the C-phase output are respectively connected with the MCU control module through the AD sampling module; the A-phase output and the B-phase output are respectively connected with the power supply output module through a switch J1 and a switch J3 in sequence; the C-phase output is also connected with the power supply output module after sequentially passing through a switch J2 and a switch J3; the N-phase output is respectively connected with the power output module and the reclosing motor; the switch J3 is also connected with a reclosing motor through a switch J4; and the switch J1, the switch J2, the switch J3 and the switch J4 are respectively connected with the MCU control module. And when any one of the three phases is electrified and is within a normal working threshold value, the reclosing motor can be ensured to be electrified and can be automatically reclosed.

The invention relates to a power supply control circuit and power supply equipment. The power supply control circuit comprises a high-voltage detection turn-off sub-circuit which receives preset first voltage input; when the first voltage is normally input, the output end of the high-voltage detection turn-off sub-circuit outputs a second voltage, so that the boost charging control sub-circuit receives the second voltage and stores electric energy, and meanwhile, the second voltage is output from the output end of the power supply control circuit through the first branch circuit; and when the first voltage generates voltage transient interruption or surge voltage, the output end of the high-voltage detection turn-off sub-circuit is turned off to lower the level of the first input end of the discharge control sub-circuit, so that the discharge control sub-circuit is turned on, the electric energy stored in the boost charge control sub-circuit is output from the output end of the power supply control circuit, and normal power supply is maintained. Finally, the normal voltage output of the power supply control circuit can be maintained and the normal power supply of the circuit can be maintained no matter the power supply input has transient interruption abnormity or surge voltage.

The invention provides a load adjusting method and device for preventing heavy overload of a circuit and a power system, and the method comprises the steps: obtaining historical operation data of a transformer substation, and determining a first transformer and a first feeder line based on the historical operation data; determining the first transformer and / or the first feeder line of which the number of times of occurrence of the heavy overload phenomenon within the preset duration is greater than a first threshold value as to-be-adjusted equipment; determining transfer target equipment according to the to-be-adjusted equipment; and determining a target switch according to the to-be-adjusted device and the transfer target device, and controlling the target switch to cut off the connection between the to-be-adjusted device and the current line and connect the to-be-adjusted device and the transfer target device, thereby realizing the power supply of the transfer target device to the to-be-adjusted device. According to the method, the problems of low equipment stability and low power supply reliability caused by manual load transfer control in the prior art are solved.