55results about How to "Power controllable" patented technology

The invention discloses a wind power and photovoltaic microgrid water pumping and energy storing power generation system. The system comprises a microgrid direct-current bus, an alternating-current bus, a system controller, a photovoltaic power generation subsystem, a DC-DC controller, a capacitor switch set, a super-capacitor set, an energy-storing battery set, a two-way DC-DC controller, a wind power generation subsystem, an AC-DC controller, a DC-AC controller, a water pump switch set, a water pump unit, a selector switch set, a reversible water turbine set, a thrown-in switch set, a power generator set, a water turbine set, a booster station and a large power grid. The wind power generation subsystem and the photovoltaic power generation subsystem can be subjected to running control at maximum power, maximum energy acquisition is guaranteed, system power balance and electric energy quality are not considered, the thrown-in set number of the super-capacitor set is controlled, smoothing is performed on the voltage of the microgrid direct-current bus, and the bus voltage is kept stable. The electric energy quality problem caused by wind power and photovoltaics can be neglected, the power generation utilizing rate of renewable energy is increased, and reliable, controllable and stable electric energy is provided for the large power grid.

The invention relates to a pre-treatment method of a composite electrode for a TEMPO/MV flow cell. The pre-treatment method specifically comprises the following steps: firstly placing carbon electrodematerial in a domestic microwave oven (the power is at 300W to 800W) to treat for 1-10min, cleaning, and then placing in an aqueous solution containing ethidene diamine to soak for 12-24h, and then placing the soaked graphite felt in a hydrothermal reaction still containing graphene oxide and ethidene diamine mixed aqueous solution, reacting for 12-24h at 180 DEG C, freezing and drying to obtainthe electrode material for TEMPO/MV flow cell. The hydrophily of the graphite felt is increased, the binding force of the three-dimensional graphene and the graphite fiber is enhanced, the electrochemical activity of the electrode material is improved, and the energy efficiency and the voltage efficiency of the TEMPO/MV flow cell are improved.

The invention discloses a disposable fracturing expansion pipe and a fracturing method thereof, and belongs to the technical field of expansion pipes. The disposable fracturing expansion pipe mainly comprises a shell, and a first plug and a second plug at two ends of the shell; screw holes are formed in the two ends of the shell; a central hole is formed in the center of the second plug; a gas generator is arranged in the shell; a gas generating agent is arranged in the gas generator; a triggering device is arranged in the middle of the gas generator; two ends of the triggering device are connected with conducting wires; and the conducting wires penetrate through the two ends of the gas generator, pass through the central hole and extend out of the expansion pipe. During use, the expansionpipe is placed in a drilling hole, the drilling hole is blocked with a stopper, then the expansion pipe is inflated with gas, and finally, an exploder is started to ignite the gas generating agent, so that the expansion pipe is exploded. The disposable fracturing expansion pipe provided by the invention has the characteristics of being small in size, convenient to transport, safe in use, and controllable in power, the fracturing method is simple, and fracturing expansion pipe is applied to the fields of mining, oil exploitation, hydraulic engineering construction and electric power engineering construction, and the like.

The invention relates to a diesel hydraulic lifting machine. The diesel hydraulic lifting machine comprises a support frame device part, a power device part, a hydraulic device part, a lifting and pulling device part and a rotary device part. According to the invention, power is provided through a diesel engine, and control power is provided through a hydraulic motor, and the stable running is achieved when loaded objects fall off by utilizing a balanced valve operating principle.

The invention relates to the technical field of electric locomotives, in particular to a rail flaw detection vehicle for a subway. The rail flaw detection vehicle comprises a cab, a frame, a bogie, a diesel engine unit, a carriage, an air source system, a detection room, a flaw detection unit and an electrical cabinet. The cab, the diesel engine unit, the detection room and the electrical cabinet are mounted inside the carriage; the carriage is connected to the top of the frame; the bogie, the air source system and the flaw detector are connected to the bottom of the frame; an alternating current and direct current electric transmission device is disposed inside the carriage; the flaw detection unit comprises a lifting bar, a stabilizer bar, a detection wheel, a detection bar and a flaw detector. The alternating current and direct current electric transmission device is disposed in the carriage to serve as a built-in drive power of the vehicle, standalone travelling is available, the flaw detector is in a slipping boot structure, the speed can be greatly increased at the premise of detection quality guaranteed, maintenance of parts is low, application and maintenance costs are low, and the vehicle has important significance to lowering domestic user cost and improving operating efficiency.

The invention discloses a microexplosion device for destructing electronic chips. The microexplosion device comprises an upper housing, a blasting cap, an initiating explosive device chamber and a lower protection plate, wherein the upper housing is an empty cavity with an opening in the lower part; fixed supporting ears are arranged at two ends of the outer part of the upper housing; the blastingcap has two blasting signal lines, and the two blasting signal lines are led out from the side wall of the upper housing; high explosive is stuffed to the upper part of the initiating explosive device chamber, and insulating materials are stuffed to the lower part of the initiating explosive device; an explosion orienting window is arranged on the lower protection plate; an energy attenuation plate is arranged in the explosion orienting window; and a plurality of controlled fragments are arranged on the energy attenuation plate. The microexplosion device for destructing electronic chips disclosed by the invention is controllable in explosion opportunity and explosion power, small in size, long in storage time, good in environmental compatibility, and convenient to load and unload; an assigned electronic chip can be effectively and physically damaged; and besides, through the energy attenuation plate, the explosion power is controlled, so that other electronic components are not damaged, the purpose that under a certain condition, the assigned electronic chip is destructed is achieved, and the data security of the electronic chip is improved.

When a pulsed waveform is used to transmit power-supply power in a form of a power packet etc., a filter for reducing harmonic components is disposed on a power transmission side. A switch and a control portion for controlling ON/OFF of a function of the filter are provided to turn ON the function of the filter limitedly at each of timings t1 to t2 and t3 to t4 at which the power is transmitted. The harmonic components are reduced from the waveform of the transmission power by the function of the filter. Radiation noise generated by the wire harness is reduced in a high frequency region. The function of the filter is turned OFF at a timing at which digital information is transmitted so that a waveform of the digital information can be prevented from being deformed.

The invention relates to the technical field of civil engineering, and provides a one-piece shock image mode exciting and receiving device. The one-piece shock image mode exciting and receiving device comprises an exciting unit, a receiving unit and a master controller, and the exciting unit, the receiving unit and the master controller are electrically connected in pairs. By the arrangement, excitation operation of the exciting unit can be realized through excitation instructions sent by the master controller, the receiving unit collects information of the excitation operation and sends to the one-piece shock image mode exciting and receiving device, exciting and receiving can be integrated, continuous and free excitation function can be realized, and excitation power is controllable.

An intelligent tunnel lamp illuminating system is characterized in that a plurality of illuminating LED lamps mounted in a tunnel are included, and LEDs are connected with a control module which is connected with a sensor module formed by a range sensor, a sound sensor and a sensillum opticum through a communication module. The communication module is a carrier communication module, and the signals of the communication module are loaded on power lines after processed through a demultiplexer and an interference suppression filter. The intelligent tunnel lamp illuminating system has the advantages that vehicle information is detected through sensors, the lamps in the tunnel are controlled to be turned on when vehicles are detected, the lamps are not turned on or partially turned on when no vehicle is detected, and the intelligent tunnel lamp illuminating system has the advantages of being efficient, energy saving, environmentally friendly and the like; sensor information is sent to an upper computer through a wireless mode or a carrier communication mode, and a controller can control working conditions of the lamps remotely, and can further control the power of the LED lamps.

The invention provides an electric heating film, which comprises a flexible film body and a connector. Wires are distributed on the flexible film body, heating resistive layers connected with the wires are laid on the flexible film body, and the connector is connected with the wires. According to the scheme of the electric heating film, the heating resistive layers connected with the wires are laid on the flexible film body and are formed by painting nano carbon series resistive pastes, so that the thickness of the electric heating film can be effectively controlled and thinning and special shaping of the electric heating film can be realized easily. In addition, the heating resistive layers of the electric heating film are arranged optionally, the electric heating film is simple in manufacturing process, low in cost, favorable for automatic production, high in heat efficiency and easy to control power when in use; the heating resistive layers are free of looseness, short circuit, broken circuit and the like, and accordingly safety of using is improved.

The invention discloses a hybrid power car electric speedup clutch and a control method thereof. The hybrid power car electric speedup clutch comprises a gear motor, a feed screw nut mechanism, a shell, brake calipers and a planetary gear train assembly. The shell is of a square-end-up and round-end-down disk-type shell structure, and the planetary gear train assembly is installed in a round area.A sun wheel is fixed to a shaft of a planet carrier through a bearing, a planet gear is fixed to the planet carrier, the planet carrier is embedded into an outer gear ring, and the planet gear separately meshes with the sun wheel and the outer gear ring. An inner rotating hub and a damping machine shell are sequentially arranged outside the outer gear ring, and the damping machine shell is fixedto the outer gear ring through bolts. Four rectangular slots are separately formed in the damping machine shell, the inner rotating hub and the outer gear ring, and each of the rectangular slots is internally provided with a torsion spring. The planet carrier is connected with an engine through the shaft penetrating through the sun wheel. The gear motor is connected with the feed screw nut mechanism, the feed screw nut mechanism is connected with the brake calipers through steel wires, the brake calipers are arranged in the shell in a floating mode, and the brake calipers are provided with twofriction plates. The hybrid power car electric speedup clutch and the control method have the advantages of simple structure, short axial size, reduction of torsional vibration and the like.

The invention discloses a machine tool cutter temperature control device capable of replacing cutting fluid. The machine tool cutter temperature control device is characterized by comprising a cold conduction block, a cooling semiconductor, a radiator, a rubber gasket, a movable clamp, a temperature sensor, an adjustable sleeve and a controller assembly, wherein the cold conduction block is in contact with a cutter handle through heat conduction silicone grease; cutter waste heat is absorbed through the Peltier effect of the cooling semiconductor; and the waste heat is transmitted to the radiator through a heat conduction plate so as to be dissipated. A temperature monitoring module monitors the contact temperature of a cutter and a workpiece in real time through an infrared radiation sensor and inputs a signal to the controller assembly, and the controller assembly adjusts the current passing through the cooling semiconductor according to the preset temperature and the real-time temperature so as to control refrigeration power. According to the machine tool cutter temperature control device provided by the invention, no cutting fluid is needed, no waste liquid is discharged, no noise is generated, continuous work can be achieved, the power is controllable, high-precision temperature control can be achieved, and the cutter and a cutting material can be reversely heated under the special process requirement.

The invention provides a micro-nano integrated solid-state thin-film lithium battery and a preparation method thereof. The micro-nano integrated solid-state thin-film lithium battery comprises a substrate and a plurality of thin-film lithium battery micro-units formed on the substrate, wherein the substrate is provided with a conductive circuit; the thin-film lithium battery micro-units are electrically connected to the conductive circuit; each thin-film lithium battery micro-unit comprises two independent current collectors, a positive electrode film, a solid electrolyte membrane and a negative electrode film which are successively formed on the substrate; the two current collectors are electrically connected to the conductive circuit; one of the current collectors is in electrical contact with the positive electrode film; the other one of the current collectors is in electrical contact with the negative electrode film; and the solid electrolyte membrane is disposed between the positive electrode film and the negative electrode film. The micro-nano integrated solid-state thin-film lithium battery of the invention can meet the requirements for high voltage, high energy density andhigh power density.

The invention relates to a current source-type uninterrupted power switch for an AC power distribution system, and belongs to the technical field of combination of power electronics and a power distribution technology. The current source-type uninterrupted power switch comprises low-capacity CSCs, a high-capacity CSC, an electronic switch and a controller, wherein DC sides of the low-capacity CSCs are mutually connected through a DC bus of the power switch; DC outlets of the low-capacity CSCs are connected with hybrid DC change-over switches in parallel; an AC side of the high-capacity CSC is connected with one end of the electronic switch through an AC circuit breaker, the DC side is connected with the DC bus in series and the DC outlet is connected with the hybrid DC change-over switches in parallel; the other end of the electronic switch is connected with an AC substation; and the controller is connected with the electronic switch, the low-capacity CSCs and the high-capacity CSC through signal lines separately. According to the power switch, the utilization efficiency of a single main transformer is improved; the total capacity of the current source converter stations is reduced; the overall loss of the system is reduced; the overall investment quota of equipment is reduced; and the overall system more economically and reliably runs.

The invention discloses a small-sized electric walking type multi-functional vehicle for removing snow and cleaning, and relates to a snow removing multi-functional vehicle. The small-sized electric walking type multi-functional vehicle is characterized in that the outer bottom part of a battery box is connected and fixed with a center bracket (8), a wheel (7) is hinged at the lower end of the center bracket (8), a direct-current motor is arranged at the center part of the wheel (7), a power supply of the direct-current motor is connected with a storage battery (4), a shaft of the direct-current motor is directly connected with a center shaft of the wheel (7), the center part of the wheel (7) is connected with a supporting arm type cross beam (9) of a snow removing shovel (1), the lower end of a handrail bracket (6) is hinged at the center part of the wheel (7), a handrail (5) is arranged at the upper end of the handrail bracket (6), and the handrail (5) is provided with a control handle of a clutch device. The small-sized electric walking type multi-functional vehicle for removing the snow and cleaning, disclosed by the invention, adopts semi-automatic mechanical power, has a smaller vehicle body, adopts a single wheel design, can be used as the snow removing vehicle by assembling the snow removing shovel, can be used for the snow removing work in places such as small roads, residential areas and campus by replacing the total-labor snow removing mode, and can be used as a daily transporting or cleaning vehicle or a mop vehicle by disassembling the snow removing shovel when not in snow removing.

The invention relates to the technical field of radio frequency pulse signal source generation circuits, in particular to a radio frequency pulse signal source generation circuit, which comprises a frequency source module, a radio frequency switch module, a voltage-controlled gain adjustable module, a numerical control attenuation module and a main control module, the voltage-controlled gain adjustable module is electrically connected with the radio frequency switch module and the numerical control attenuation module, the frequency source module communicates with the main control module to obtain a corresponding frequency setting code, and the frequency source module sets a register corresponding to the frequency source module according to data obtained from the main control module; the radio frequency switch module and the voltage-controlled gain adjustable module are arranged to realize pulse modulation of signals, the signals modulated by the radio frequency switch module are continuously sent to the voltage-controlled gain adjustable module, and finally the modulated radio frequency signals are sent to the numerical control attenuation module, so that the purpose of controllable power sent to a receiver is realized. And thus, high suppression degree on continuous waves is realized.