30results about How to "Enables power regulation" patented technology

The invention discloses an energy-saving type grain drying machine, which is applicable to drying granular materials such as paddies, wheat, corn, soybean and rapeseed and seeds. The energy-saving type grain drying machine disclosed by the invention has the advantages that indirect hot-air heating is adopted, so that no pollution is caused to grains; an adopted mixed-flow type structure has a good effect for removing dust in grains and bad grains, so that the quality of the dried grains is excellent, and the added value of the waist cracking rate and the added value of the breakage rate of the grains is greatly superior to the national standard; and the drying speed is fast and the energy is saved by more than or equal to 35% compared with that of the similar machine.

The invention discloses a wind-photovoltaic-thermal-bundled DC transmission AGC control method. Firstly a master control area and a wind-photovoltaic-thermal-bundled control area are established in aprovincial power grid, wherein the control boundary of the wind-photovoltaic-thermal-bundled control area is a thermal total transmission connection line, a DC transmission connection line and a new energy transmission convergence line. If the wind-photovoltaic-thermal-bundled control area has an overall power generation plan, the wind-photovoltaic-thermal-bundled control area uses the FTC mode tocontrol. If there is no overall power generation plan, the wind-photovoltaic-thermal-bundled control area can use the internal fluctuation suppression and auxiliary main network frequency connectionline power control mode so that waxing and waning of the wind-photovoltaic-thermal output can be realized, the power of the bundled transmission area is ensured to be stable and the influence of new energy fluctuation of the wind-photovoltaic-thermal-bundled transmission area on the overall power grid can be reduced.

The invention discloses an automatic control method of the output power of a gas discharge lamp, comprising steps as follows: detecting the light wane variable quantity of the gas discharge lamp; matching corresponding actual power value for the gas discharge lamp in accordance with the detected light wane variable quantity; and regulating the output power of the gas discharge lamp in accordance with the matched actual power. Accordingly, the embodiment of the invention also discloses an electronic ballast, comprising a light wane sampling module, a singlechip, and a half-bridge inverter, wherein the light wine sampling module is used for detecting the light wane variable quantity of the gas discharge lamp; the singlechip is used for matching corresponding actual power value for the gas discharge lamp in accordance with the light wane variable quantity detected by the light wane sampling module; and the half-bridge inverter is used for regulating the output power of the gas discharge lamp in accordance with the actual power matched by the singlechip. Through the implementation of the embodiment of the invention, the electronic ballast of the invention can prolong the service life of the gas discharge lamp, and save more energy compared with the existing electronic ballast.

The invention provides a monitoring platform of load recovery control decision. The monitoring platform comprises a real-time load recovery monitoring subsystem, an online load recovery capability evaluation subsystem, a load recovery control principle and control mode determining subsystem, an online load recovery control strategy optimizing subsystem and an online rapid and safe load recovery process checking subsystem. The monitoring platform surrounds key technologies of load recovery control, according to real-time load recovery monitoring, online load recovery capability evaluating and load recovery control principle and control mode determining technologies, an online optimization method of the load recovery control strategy is provided, the load recovery strategy is corrected repeatedly via an online rapid and safe checking technology in the load recovery process, and finally, an outage load is recovered in an ordered, smooth, safe and rapid way.

A multi-channel signal output circuit comprises a radio frequency signal input end, at least one adjustment circuit, at least one radio frequency signal output end, and a logic control circuit. The radio frequency signal input end is suitable for receiving a first radio frequency signal. Each adjustment circuit comprises a frequency adjustment circuit and a phase-locked loop, wherein the frequency adjustment circuit is suitable for acquiring an adjustment signal based on the first radio frequency signal, the frequency of the adjustment signal is a first frequency threshold, and the phase-locked loop is suitable for locking the frequency of the adjustment signal when the frequency of the adjustment signal is greater than or equal to a second frequency threshold. The radio frequency signal output ends and the adjustment circuits are connected in a one-to-one correspondence manner, and each radio frequency signal output end is suitable for outputting a second radio frequency signal relevant to the frequency-locked adjustment signal. The logic control circuit comprises a trigger unit suitable for generating trigger signals at least corresponding to the frequency adjustment circuits and the phase-locked loops. By adopting the multi-channel signal output circuit of the invention, the cost is reduced, and the efficiency of signal adjustment is increased.

The invention belongs to the technical field of laser processing, and relates to a laser beam-splitting system and method. The laser beam-splitting system comprises a laser output assembly, a laser beam-splitting unit and optical fiber couplers, wherein the laser beam-splitting unit comprises a rotatable first half-wave plate and a fixedly arranged polarization selection beam splitter. The laser beam-splitting method comprises the steps as follows: an output end of the laser output assembly emits linearly polarized light; the linearly polarized light is transmitted to the laser beam-splitting unit; the first half-wave plate deploys the linearly polarized light and then transmits the linearly polarized light to the polarization selection beam splitter; the polarization selection beam splitter divides the linearly polarized light deployed by the first half-wave plate into two laser branch beams; and the two laser branch beams are collected into the corresponding optical fiber couplers respectively and are output to a processing station focusing lens through coupling of the optical fiber couplers. According to the laser beam-splitting system and method, laser energy of the laser branch beams can relatively change continuously, so that power adjustment on a beam-splitting light path is achieved and adjustment is simple and fast.

The invention discloses an alternating-current input brushless direct-current motor for a fan and belongs to the technical field of motors. The alternating-current input brushless direct-current motor comprises a stator, a rotor, a circuit board and a motor shell, wherein the motor shell comprises a front end cover and a back end cover; the stator, the rotor and the circuit board are arranged in the motor shell; the circuit board is used for providing electric drive and control for the brushless direct-current motor; the circuit board is connected with an external power line; a rectifying circuit and a driving circuit are arranged on the circuit board. The alternating-current input brushless direct-current motor for the fan is simple in structure, low in material consumption, low in production cost, convenient to process and favorable for environmental protection; the driving circuit comprises a distributor, only two field-effect tubes and a Hall sensor, and is combined with a capacitor C1 to regulate power and adjust rotation speed; the driving circuit is energy-saving and lower in price, and the aims of saving energy and reducing emission are fulfilled.

The invention provides a control method and device of a cooking appliance, a storage medium and a cooking appliance. The control method of the cooking appliance comprises the following steps: obtaining a mode selection instruction triggered by a user, wherein the mode selection instruction carries a mode identifier of a currently selected cooking mode; judging whether the mode identifier carried in the mode selection instruction is a mode identifier corresponding to a preset custom adjustment mode; obtaining a cooking parameter setting instruction triggered by the user when the mode identifieris the mode identifier corresponding to the custom adjustment mode, wherein the cooking parameter setting instruction carries target heating positions participating in the cooking and the heating power corresponding to each target heating position set by the user; and controlling each target heating position in the cooking appliance to be heated according to the corresponding heating power according to the cooking parameter setting instruction. According to the invention, the user can adjust the power of different heating positions of the cooking appliance according to the own cooking needs,which meets the personalized cooking needs of users and improves the user experience.

The invention discloses a device for testing LETID of a photovoltaic module and a detection method. The invention relates to the field of photovoltaic module testers. The device comprises an environment box, a movable structure, a temperature adjusting structure and a movable contact testing structure; the movable structure is arranged on the side edge of the environment box; and the temperature adjusting structure is arranged on one side of the outer wall of the environment box. The movable contact test structure is arranged in the environment box. Through arrangement of the movable structure, when the photovoltaic panel is put into the environment box, the photovoltaic panel can stably enter the environment box; through arrangement of the temperature adjusting structure, power adjustmentof the electric heating tube can be achieved by changing the position of the sliding electrode on the resistance coil according to requirements, and adjustment of a test environment is facilitated; and through arrangement of the movable contact testing structure, the sliding conductive plates can be placed on different fixed conductive plates, continuous detection on current is performed throughthe current detector, and testing is achieved.

The invention provides a driving circuit with an intelligent induction function, and relates to the technical field. The driving circuit comprises an EMC device, a power conversion circuit, a rectification filter circuit, a control circuit connected with the power conversion circuit, a power supply module I for supplying power to the control circuit, a power supply module II for supplying power toan inductor, an optocoupler and the inductor; and the driving circuit further comprises an MOS tube, the grid electrode of the MOS tube is connected with the output pin of the inductor, and the drainelectrode of the MOS tube is connected with the anode of the optocoupler. According to the invention, a PWM signal outputted by a single-chip microcomputer in the inductor is directly used, is isolated by an optical coupler, and is transmitted to the control circuit, the power of the power supply is adjusted, the isolation of the inductor circuit, the input end and the load end is realized at thesame time, and two circuits of converting PWM in the inductor into a 0-10V signal and converting the 0-10V signal in the power supply into a PWM signal are omitted. Stability and reliability of the dimming circuit are facilitated, isolation of the inductor dimming circuit is achieved, and the driving circuit has the advantages of being low in cost and high in reliability.

The invention discloses a light modulation circuit of an electromagnetic induction lamp which comprises a closed-loop light modulation control signal device, a lamp power feedback compensation device, a resistance-capacitance oscillation timer, a lamp current sampling signalizer and a lamp voltage sampling signalizer. The invention can realize the operation status monitoring and real time adjustment.

The invention relates to a portable handheld sealing machine and a control method for the portable handheld sealing machine. The portable handheld sealing machine comprises a sealing machine body, thesealing machine body is provided with a heating body and is further provided with a control circuit board, the control circuit board is provided with a function control circuit and a power control circuit which are in electrical connection with each other, the function control circuit is provided with an output power adjusting switch, and the power control circuit with the heating body. The portable handheld sealing machine can adjust the working current of the heating body through the output power adjusting switch to realize power adjustment of the heating body according to the material, thickness and other actual conditions of packaging bags.

The invention provides a large power static var compensator based on SOPC and IGCT. The static var compensator includes a controller module and a power module. A system control panel employs a FPGA processor of a SOPC system which configures systems on a programmable slice. The controller module includes the system control panel and a driving conditioning plate. The system control panel and the driving conditioning plate conduct bilateral communications, wherein the driving conditioning plate includes an IO interface circuit, a signal conditioning sampling circuit, a driving circuit and a protection circuit. The power module and the driving circuit are connected for receiving driving of a PWM driving signal. The power module includes an integrated gate commutated thyristor (IGCT) module and a filtering circuit. An input end of the filtering circuit and an output end of the IGCT module are connected so as to conduct filtering treatment on an output signal of the IGCT module. According to the invention, the static var compensator can increase power density of system modules, increase operation efficiency and fault reaction speed of the system, and reduce link interference among chips.

The invention provides an ultrasonic skin therapeutic apparatus which comprises a rectifier, a step-down transformer, a driver, a full-bridge inverter, a transformer, an impedance matcher, a transducer, a current sampler, a phase-locked loop, a low-pass filter, a bidirectional analog switch and a deadlock detector. The deadlock detector compares the voltage across two ends of a filter capacitor in the low-pass filter with the set reference voltage, outputs a high level to turn on the bidirectional analog switch when the voltage across two ends of the filter capacitor in the low-pass filter is higher than the reference voltage, and the filter capacitor releases the stored electric energy; the control end voltage of the voltage-controlled oscillator is reduced to zero, the output frequency of the voltage-controlled oscillator is reset to the lower limit frequency, unlocking is achieved, and the problem that the upper limit frequency of a traditional phase-locked loop is locked is solved.

The invention discloses a light modulation circuit of an electromagnetic induction lamp which comprises a closed-loop light modulation control signal device, a lamp power feedback compensation device, a resistance-capacitance oscillation timer, a lamp current sampling signalizer and a lamp voltage sampling signalizer. The invention can realize the operation status monitoring and real time adjustment.

The invention relates to an energy-saving control method for a traffic signal control system. Compared with the prior art, the defect that the existing traffic signal control system power reduction technology is complex or functionally imperfect is solved. The method comprises the following steps: a power adjustment demand plan is acquired; the initial current value of signal lamps is acquired; a power adjustment signal is sent out; a lamp control module receives the power adjustment signal; a signal machine microcontroller waits for a signal lamp group to cyclically run to next phase X; the current value of the signal lamps after adjustment is acquired; and the power adjustment result is verified. By triggering pulsed switching signals in a combined way, power adjustment of signal lamp equipment by signal control equipment is realized, and energy conservation and emission reduction of the signal control system are realized effectively.

The invention discloses a high-voltage pulse switching power supply, which comprises a rectifier module and a master control module, and is characterized by further comprising an MOS (Metal Oxide Semiconductor) tube driving module and a chopping and boosting module, the input end of the rectifier module is electrically connected with commercial power, and the output end is electrically connected with the input end of the master control module; the output end of the main control module is electrically connected with the input end of the MOS tube driving module, and the output end of the MOS tube driving module is electrically connected with the input end of the chopping and boosting module; the chopping and boosting module comprises a reaction transformer for obtaining high-voltage direct-current voltage and supplying power to the outside; the master control module mainly comprises an STM32 single-chip microcomputer and an auxiliary peripheral circuit thereof. And the MOS tube driving module comprises an IR2117 chip. Therefore, the high-voltage pulse switching power supply is small in size and high in working efficiency.

The invention discloses an adaptive power-voltage droop control method and system of a DC power transmission system, belonging to the field of power transmission and distribution of power systems. Including: building the upper limit loop, lower limit loop and additional loop; the output power of the upper limit loop is multiplied by the adaptive power-voltage slope coefficient to obtain the first product, and the output power of the lower limit loop is multiplied by the adaptive power-voltage slope coefficient , to obtain the second product; add the first product and the second product, and the sum value is used as the output voltage of the first control branch, and the output voltage of the additional loop is directly used as the output voltage of the second control branch; when the second converter outputs active power The power is greater than or equal to the action power of the hysteresis comparator, and the output of the second control branch is taken as ΔU dc ; When the active power output by the second converter is less than or equal to the return power of the hysteresis comparator, the output of the first control branch is taken as ΔU dc ; the ΔU dc Sum the command value of the DC voltage of the high-voltage valve group under the rated working condition to obtain the DC voltage of the high-voltage valve group.

The invention discloses a wind-photovoltaic-thermal-bundled DC transmission AGC control method. Firstly a master control area and a wind-photovoltaic-thermal-bundled control area are established in aprovincial power grid, wherein the control boundary of the wind-photovoltaic-thermal-bundled control area is a thermal total transmission connection line, a DC transmission connection line and a new energy transmission convergence line. If the wind-photovoltaic-thermal-bundled control area has an overall power generation plan, the wind-photovoltaic-thermal-bundled control area uses the FTC mode tocontrol. If there is no overall power generation plan, the wind-photovoltaic-thermal-bundled control area can use the internal fluctuation suppression and auxiliary main network frequency connectionline power control mode so that waxing and waning of the wind-photovoltaic-thermal output can be realized, the power of the bundled transmission area is ensured to be stable and the influence of new energy fluctuation of the wind-photovoltaic-thermal-bundled transmission area on the overall power grid can be reduced.

The invention discloses an energy-saving type grain drying machine, which is applicable to drying granular materials such as paddies, wheat, corn, soybean and rapeseed and seeds. The energy-saving type grain drying machine disclosed by the invention has the advantages that indirect hot-air heating is adopted, so that no pollution is caused to grains; an adopted mixed-flow type structure has a good effect for removing dust in grains and bad grains, so that the quality of the dried grains is excellent, and the added value of the waist cracking rate and the added value of the breakage rate of the grains is greatly superior to the national standard; and the drying speed is fast and the energy is saved by more than or equal to 35% compared with that of the similar machine.

The invention provides a large-coiler steam generator device with water being fed at the upper end. The large-coiler steam generator device with the water being fed at the upper end comprises a cylinder, a spiral heat exchange pipe and a vertical straight pipe section. The upper end of the cylinder is fixedly connected with an upper end closure, and the lower end of the cylinder is fixedly connected with a lower end closure. An inner shell is fixedly connected to the inner side wall of the cylinder. A return annular cavity is formed by the inner shell and the inner side of the cylinder. The upper portion of the side wall of the cylinder is provided with a water inlet section. The top of the upper end closure is provided with a steam outlet section. The spiral heat exchange pipe is of a large coiler structure. The upper end of the spiral heat exchange tube is connected with the steam outlet section. The lower end of the spiral heat exchange pipe is connected with the lower end of the vertical straight pipe section. The vertical straight pipe section is located at the center of the spiral heat exchange pipe. The upper end of the vertical straight pipe section is connected with the water inlet section. According to the large-coiler steam generator device with the water being fed at the upper end, the structure is simple, and the heat exchange efficiency is high; the middle space of the large-coiler steam generator device is fully utilized, the length of a preheating portion is increased, and the height of the cylinder is reduced; and in addition, the water inflow amount is controlled through a partition plate, power adjustment of the large-coiler steam generator device with the water being fed at the upper end can be achieved, and operation and maintenance are convenient.

A method for automatically controlling the output power of a gas discharge lamp includes: detecting the luminous decay variation of the gas discharge lamp, according to the detected luminous decay variation, matching a corresponding actual power value for the gas discharge lamp; and according to the matched actual power value, regulating the output power of the gas discharge lamp. Accordingly, the invention also discloses an electronic ballast, including: a luminous decay sampling module(8), for detecting the luminous decay variation of the gas discharge lamp; a single chip microcomputer (7), for matching a corresponding actual power value for the gas discharge lamp according to the luminous decay variation detected by the luminous decay sampling module; and a half-bridge inverter(6), for regulating the output power of the gas discharge lamp according to the actual power value matched by the single chip microcomputer microcomputer. The electronic ballast can prolong the service life of the gas discharge lamp, and save more energy compared with existing electronic ballasts by the invention.

The invention discloses an alternating-current input brushless direct-current motor for a fan and belongs to the technical field of motors. The alternating-current input brushless direct-current motor comprises a stator, a rotor, a circuit board and a motor shell, wherein the motor shell comprises a front end cover and a back end cover; the stator, the rotor and the circuit board are arranged in the motor shell; the circuit board is used for providing electric drive and control for the brushless direct-current motor; the circuit board is connected with an external power line; a rectifying circuit and a driving circuit are arranged on the circuit board. The alternating-current input brushless direct-current motor for the fan is simple in structure, low in material consumption, low in production cost, convenient to process and favorable for environmental protection; the driving circuit comprises a distributor, only two field-effect tubes and a Hall sensor, and is combined with a capacitor C1 to regulate power and adjust rotation speed; the driving circuit is energy-saving and lower in price, and the aims of saving energy and reducing emission are fulfilled.

The invention is applicable to the technical field of light curing lamps, and provides a printing LED-UV light curing lamp control system. The printing LED-UV light curing lamp control system comprises a cabinet body, at least one control main body, an operation window and a control panel, wherein, a cabinet door is rotatably connected to the cabinet body; the at least one control main body is detachably fixed inside the cabinet body and is used for controlling the power of LED-UV light curing lamps; An operation window; the operation window is formed in the cabinet door or the cabinet body, and a fixed frame is installed on the inner side of the operation window; the control panel is detachably installed on the fixed frame and is electrically connected with the control main bodies; the control main bodies are used for controlling the LED-UV light curing lamps in different areas; and the plurality of control main bodies are arranged inside one cabinet body, so that the inconvenience inadjustment caused by scattering of the control main bodies is avoided, the integration capability of control is improved, and the space waste is reduced. By controlling the different areas of the LED-UV light curing lamps, automatic power adjustment is achieved, and energy waste and printed matter loss are avoided.

The invention relates to the technical field of electrical equipment, and discloses a throttling device. The throttling device comprises a liquid inlet end, a liquid outlet end, a plurality of throttling branches and a conversion valve; the multiple throttling branches are arranged between the liquid inlet end and the liquid outlet end, and the throttling flux of each throttling branch is different; and the conversion valve is arranged to be controlled to communicate at least one throttling branch with the liquid inlet end and the liquid outlet end. According to the throttling device, the multiple throttling branches with different throttling fluxes are arranged in the throttling device, and then the throttling branches communicating with a refrigerant pipeline are switched through the conversion valve; and at least one throttling branch communicating with the liquid inlet end and the liquid outlet end is switched, so that the throttling flux between the liquid inlet end and the liquidoutlet end of the throttling device is adjusted, then the power adjustment of a refrigerant circulating system is realized, the starting and stopping frequency of a compressor is reduced, the loss ofthe compressor caused by starting and stopping is reduced, and the service life of the compressor is prolonged. The invention further discloses the refrigerant circulating system and a dehumidifier.

A foldable electric heater for easy storage, which is characterized in that it includes more than two stacked electric heating sheets, one side of the electric heating sheet is connected to the spine board through a connecting piece, the whole is book-shaped, and the electric heating sheet is opened to form a fan; the spine board A power switch is provided, and the power switch is respectively connected to the power supply and each electric heater; there are opening limit tension bars connected between adjacent electric heaters; The reversible panel; between the adjacent electric heaters, between the panel and its adjacent electric heaters, there are open-angle travel switches, and the open-angle travel switches between the separated parts of the panels or electric heaters are turned on, and the electric heaters It is connected to the power switch through its adjacent open-angle travel switch; the invention sets the electric heater into a book-like structure, which has a large heat dissipation area after unfolding, good heat dissipation effect, and fast heating speed. When not in use, the electric heater can be folded and stored, saving space. The invention is ingenious in conception, easy to implement and suitable for popularization.

The invention discloses a two-wheeled electric vehicle wireless charging system and a foreign matter detection and power regulation method. The system comprises a single rectification circuit D1-D4, a PFC circuit DF1-LF1-GF1, a half-bridge inverter circuit S1-S2, an LC compensation circuit C1-C2-L2-C2-L2, a rectification circuit Dr1-Dr4, a transmitting end controller, and a receiving end controller. The transmitting end controller comprises a transmitting end MCU processor, a drive circuit module and a transmitting end communication base station. The receiving end controller comprises a receiving end MCU processor and a receiving end communication base station. According to the two-wheeled electric vehicle wireless charging system and the foreign matter detection and power adjustment method of the invention, wired charging is replaced by wireless charging; the system comprises the single rectification circuit D1-D4, the PFC circuit DF1-LF1-GF1, the half-bridge inverter circuit S1-S2, the LC compensation circuit C1-L2-C2-L2, the rectification circuit Dr1-Dr4, the transmitting end controller and the receiving end controller; the transmitting end controller adopts a constant-voltage and constant-current charging mode according to detected state information of a vehicle-mounted battery Ub, and the transmitting end controller adjusts the transmission power of the system by adjusting the working frequency of the system so as to charge a two-wheeled electric vehicle.