85results about How to "Stable power consumption" patented technology

A semiconductor memory device with a clock synchronization circuit capable of performing a desired phase / frequency locking operation, without the jitter peaking phenomenon and the pattern jitter of an oscillation control voltage signal using injection locking. The device includes a phase-locked loop that detects a phase / frequency difference between a feedback clock signal and a reference clock signal to generate an oscillation control voltage signal corresponding to the detected phase / frequency difference, and generates the feedback clock signal corresponding to the oscillation control voltage signal. An injection locking oscillation unit sets up a free running frequency in response to the oscillation control voltage signal and generates an internal clock signal which is synchronized with the reference clock signal.

The invention discloses a comprehensive control method for a high-power efficient energy consuming high-frequency switching power supply. The high-power efficient energy consuming high-frequency switching power supply comprises a three-phase current inverter and a high-frequency DC / DC (Direct Current to Direct Current) converter, wherein the high-frequency DC / DC converter consists of a single-phase full-bridge inverter, a high-frequency coupling transformer and a low-voltage rectifier which are connected in series in sequence; the input end of the three-phase current inverter is connected with a group of three-phase capacitors connected in a Y form, and is connected with a power grid through a three-phase inductor L; and the three-phase current inverter is connected with the single-phase full-bridge inverter of the high-frequency DC / DC converter. According to the method, quick response of a system is realized, change of a load is tracked quickly, efficient power consumption of the system is realized, and the voltage and current distortion factors of the system are decreased.

A power supply apparatus for use with a redundant power supply system includes a casing, a main circuit board and an airflow driving device. The casing includes a first airflow opening and a second airflow opening. The main circuit board is disposed within the casing and includes plural electronic components thereon. The airflow driving device is disposed in the middle region of the main circuit board. A cooling air is pumped by the airflow driving device to be introduced into the inner portion of the casing through one of the first airflow opening and the second airflow opening, then the heat generated from the electronic components is removed by the cooling air, and finally a heated air is exhausted through the other one of the first airflow opening and the second airflow opening.

The invention provides a comprehensive coordination control method of a photovoltaic power generation microgrid having a weather prediction function. The photovoltaic power generation microgrid having the weather prediction function comprises a DC / AC inverter, a photovoltaic array and bidirectional DC / AC converter, a circuit breaker, a load and AC bus, an energy storage battery, a coordination controller, a control network connected with the coordination controller and the convertor and the circuit breaker, a power dispatching centre and a weather prediction module. Under the premise of ensuring sufficient power supply for a user, the method, through comprehensive application of weather judgment and prediction, power supply scheduling and energy storage device scheduling, enables the photovoltaic power generation microgrid to be prepared for adjustment in advance under the condition of weather judgment and prediction, thereby improving mode switching speed of the system for different situations and reducing system misoperation rate; and power quality and power supply reliability are ensured, and the load of the user is allowed to operate stably.

The invention provides an unmanned aerial vehicle in-the-air illuminating system. Each propeller of an unmanned aerial vehicle is designed into an upper propeller body and a lower propeller body, and an emergency buffer parachute is arranged at the top of the unmanned aerial vehicle. Multiple 100 W LED lamps are hung on cross bars. An annular unmanned aerial vehicle base is arranged at the bottom of the unmanned aerial vehicle. A launching platform frame located on the ground is of a circular truncated cone shape. A power line rolling frame is arranged at the lower portion of the launching platform frame, and the power line inlet end of the power line rolling frame is connected with a direct-current voltage adjuster. The unmanned aerial vehicle in-the-air illuminating system is further provided with an induction motor and a remote control box. An induction motor shaft is arranged on a rotary shaft of the power line rolling frame. The illuminating aerial vehicle and a high-power searchlight device are adopted in the unmanned aerial vehicle in-the-air illuminating system, and a good illuminating function is achieved; the induction motor device is adopted, the motor can automatically induct the height of the unmanned aerial vehicle to automatically rotate to take up and pay off an electric wire, and therefore the electric wire is reasonably and maximally used; the direct-current supply voltage is automatically adjusted, and it is guaranteed that stable power electricity is provided for airborne flight of the unmanned aerial vehicle.

The invention discloses a household appliance control method. The household appliance control method comprises the following steps: when the fact that the total current of household electricity consumption reaches a preset threshold is monitored, acquiring a time period corresponding to a current time point, and acquiring electricity consuming priorities of household appliances currently running in the time period; according to the electricity consuming priorities, determining household appliances to be processed; controlling power reducing operation of the household appliances to be processed, wherein the power reducing operation comprises electricity disconnecting or current reducing operation. The invention further discloses a household appliance control system and a computer storage medium. Through real-time or timed acquisition of the electricity consuming priorities of the household appliances, the electricity disconnecting or current reducing operation is performed on the household appliance with the lowest electricity consuming priority, so that the current household appliance with the relatively high electricity consuming priority is not shut down by mistake while the stable household electricity consumption is guaranteed, and the accuracy is higher.

The present application discloses a system for controlling the operation of a microgrid that includes a power unit configured to include a distributed power source including one or more new and renewable energy power sources and to convert the power of the distributed power source and supply the converted power to a load, a load calculation unit configured to calculate an optimal output condition according to the type of load included in a load list in response to the signal of an external power generation source.

The invention relates to an ozone generator, comprising two electrodes and a dielectric layer arranged between the above such that between the dialectic layer and one of the electrodes an ozonizing gap is formed, through which an oxygen-containing gas can be run. In the direction of the flow of the gas, a dielectric capacity (CD) of the dielectric layer of the gas becomes smaller and / or layer thickness of the dielectric layer becomes greater, such that a gap width of the ozonizing gap is greater on the inlet side than the outlet side.

The invention belongs to a method for analyzing and monitoring enterprise production recovery conditions by adopting electric power data, and particularly relates to an enterprise work and productionresumption index measuring method based on electric power data. The method acquires enterprise work and production resumption indexes through enterprise power consumption information data, and comprises the following steps of: S10, acquiring the enterprise power consumption information data; S20, cleaning and repairing enterprise power consumption information data; S30, measuring the enterprise work and production resumption indexes; wherein the enterprise work and production resumption indexes comprise an enterprise work resumption rate, an enterprise production resumption rate and / or an enterprise work resumption electric power index. In one embodiment of the invention, the enterprise power consumption information data in the step S10 is acquired through a power consumption information acquisition system and a power marketing system. According to the invention, an enterprise power consumption data acquisition path, an enterprise power consumption data preprocessing model and an enterprise power consumption data statistical analysis model are constructed for analysis of the enterprise work and production resumption conditions in a multi-angle and omnibearing manner, and the enterprise work and production resumption information can be fed back in time.

The present application relates to a fuel cell system and a method for driving same, which can produce stable electricity, enhance load following capability, and simultaneously increasing fuel utilization rate and energy efficiency by separately managing a base load and a load following of a fuel cell, and the fuel cell system according to one embodiment of the present application comprises: a molten carbonate fuel cell for generating electricity by using fuel; a reaction gas for shifting discharge gas into water gas; a buffer tank for storing the water gas; and a driving device which is actuated by using the water gas that is stored and provided from the buffer tank.

The invention discloses a driving method of an organic light-emitting display panel, a time sequence controller and a display device. The aging data of the organic light-emitting display panel is analyzed and processed such that the full-screen brightness gain value is controlled, namely, the full-screen brightness is reduced to the maximum extent according to the aging degree, so that the aging speed of the organic light-emitting display panel is reduced, the service life of the organic light-emitting display panel is prolonged, the power consumption of the organic light-emitting display panel is stabilized, the high-quality requirements of customers are met, and products are more competitive.

The invention aims to provide a method for reducing the steel rolling steel process energy consumption per ton steel. The method includes A. acquiring the historical data of the key parameters involved in the steel rolling process, and constructing a mathematical model of the tapping temperature and the energy consumption per ton steel; B. acquiring the key parameters in the real-time production to be used as the initial values of the key parameters; C. introducing the initial values of the key parameters into the mathematical model of the tapping temperature and the energy consumption per ton steel to obtain the predicted values of the tapping temperature and the energy consumption per ton steel; D. randomly optimizing the initial values of the key parameters to obtain the temporary optimized values of the key parameters, calculating the temporary optimized values of the tapping temperature and the energy consumption per ton steel, and determining the validity of the temporary optimized values; E. performing continuous cycle optimization until the regulated target values of the key parameters are obtained; and F. inputting the regulated target values of the key parameters into the steel rolling process control system to control the steel rolling process. The method overcomes the shortcomings of high reconstruction cost and bad control precision in the prior art and has the characteristics of stabilizing the tapping temperature and reducing the energy consumption per ton steel.

The present invention provides a power control device, a machine comprising the same and a power control method. The device is used for an integrated machine comprising a thin client and a display and comprises: a current detecting unit for detecting the current flowing through a port in the thin client connecting to the peripheral device; and a control signal generating unit for generating a control signal based on the intensity of the detected current to adjust the power consumption of the display and / or the thin client to maintain no increase in the power consumption of the integrated machine. The power control device, the machine comprising the same and the power control method of the present invention can be used to avoid low efficiency resulting from the power reservations for peripheral devices connected by a USB port.

The invention provides an electric power low-voltage direct-current redundant power supply system. The electric power low-voltage direct-current redundant power supply system comprises a rectifying circuit, a filtering circuit, an overvoltage switching circuit, a voltage stabilizing circuit, a lithium battery unit and a detection switching circuit; the input end of the rectifying circuit is connected with a mains supply; the output end of the rectifying circuit is connected with the input end of the filtering circuit; the output end of the filtering circuit is connected with the input end of the overvoltage switch circuit; the output end of the overvoltage switching circuit is connected with the first input end of the voltage stabilizing circuit; the detection input end of the detection switching circuit is connected with the output end of the overvoltage switching circuit; the power supply input end of the detection switching circuit is connected to the lithium battery unit; the powersupply output end of the detection switching circuit is connected to the second input end of the voltage stabilizing circuit; and the voltage stabilizing circuit supplies power for a load. Accordingto the system of the invention, stable working power can be continuously provided for power detection equipment when the mains supply is powered off or power-off protection is executed during the overvoltage of the mains supply, so that the working stability of the power detection equipment is ensured, and the stability of a whole power grid is further ensured.

The embodiments of the invention relate to the illumination field, and provide a drive circuit and a lamp fixture. A low-power stabilized power supply is arranged so that when a lamp fixture is at a dormancy state, the standby power consumption of the drive circuit is quite low, unnecessary energy consumption is saved, and the life of the lamp fixture is prolonged. Besides, a control unit, a current sampling circuit and a DC / DC conversion circuit are arranged so that the current size of a light source can be determined through the control unit according to light source currents obtained by the current sampling circuit, and the DC / DC conversion circuit can be controlled to output stable currents to the light source, thus the stability of a lamp fixture circuit is improved, the drive circuit of the lamp fixture satisfies the reference indicators of high efficiency and low power, a stable, low-power and long-standby time drive circuit is provided for a portable illumination lamp fixture, and the overall electrical efficiency of the drive circuit and the lamp fixture is ensured.

The present invention relates to electronic lock technology, and is especially one kind of electronic lock capable of being powered automatically. The electronic lock includes one electronic lock body, in which there are two conducting terminals set inside the lock bolt, two corresponding conducting tabs in the door box, one AC power source connected through one charging and voltage varying circuit to the conducting tabs, and one motor with power supplying circuit connected the conducting terminals. When the electronic lock is in locking state, the conducting terminals are connected separately to the conducting tabs. The electronic lock with low power consumption has lower battery replacing frequency and high reliability.

The invention provides a big data analysis method and device based on an electric power internet of things and computer equipment. The method comprises the steps of: performing data feature extractionon the power consumption behavior data set; obtaining a power consumption data distribution list of each power consumption behavior data set; determining a normal cluster and a target power utilization cluster based on the power utilization data distribution list, determining a first power utilization stability weight and a second power utilization stability weight according to the first power utilization behavior data corresponding to the normal cluster and the target power utilization cluster, and according to the first power utilization stability weight, the second power utilization stability weight and the target power utilization behavior data corresponding to each power utilization terminal in each power utilization cluster corresponding to each power utilization behavior data set,determining a power utilization scheduling strategy of each power utilization cluster and issuing the power utilization scheduling strategy. Thus, the cluster server can control the power utilizationterminals in the power utilization cluster according to the power utilization scheduling strategy, safe and reliable operation of the power utilization cluster is ensured, and safe, stable and reliable power utilization of power consumers is further ensured.

The invention provides a low-power consumption current hunger type oscillator circuit which comprises a power source end, a grounded end, a reference generation circuit, a low-voltage ring oscillatorand a voltage transformation circuit, wherein the low-voltage ring oscillator is electrically connected with the reference generation circuit; the voltage transformation circuit is electrically connected with the low-voltage ring oscillator; the reference generation circuit comprises a first PMOS transistor; a source of the PMOS transistor is electrically connected with the power source end; a gate of the first PMOS transistor is electrically connected with an output end of an error amplifier; a drain of the first PMOS transistor is respectively electrically connected with a positive output end of the error amplifier and a first end of a first resistor; a second end of the first resistor is electrically connected with the grounded end. According to the low-power consumption current hungertype oscillator circuit provided by the invention, accurate oscillator frequency output and low power consumption can be realized, the operating voltage of the circuit has extremely small influence onthe oscillator frequency value, and the circuit structure is simple.

Embodiments of the invention provide a power consumption control method, a storage medium and electronic equipment, the power consumption control method is applied to the electronic equipment, and themethod comprises the steps of obtaining power consumption and preset sleep time of the electronic equipment; judging whether the power consumption is greater than a target power consumption threshold; if yes, increasing the preset sleep time to obtain target sleep time; if so, reducing the preset sleep time to obtain target sleep time; and enabling the plurality of threads to sleep for the targetsleep time. The electronic device can provide high performance, and the electronic device does not have too high power consumption and temperature.

The invention relates to a self-adaptive adjustable bookshelf. The bookshelf is improved on the basis of an existing bookshelf structure. An intelligent control telescopic control device is arranged for adjacent bookshelf side plates (1); a motor electrically controlled telescopic rod (7) is used in the design and arranged between the adjacent bookshelf side plates (1) on the basis of telescopic rods (2) designed and arranged between the adjacent bookshelf side plates (1); the distance between the adjacent bookshelf side plates (1) is driven to be controlled and adjusted along with telescopic control over the telescopic rods above the motor electrically controlled telescopic rod (7); Meanwhile, on the basis of a specifically designed filter circuit (6), filtering is conducted according to a distance measuring result of a designed distance measuring sensor (3), and a more precise distance measuring detection result is obtained; on the basis of the result, intelligent control is conducted on the motor electrically controlled telescopic rod (7), so that self-adaptive change adjustment of the inner space and the outer space of the designed bookshelf is achieved, and the use efficiency of the bookshelf is improved.

The invention discloses a near-bit wireless constant current close short-distance transmission method and device and belongs to the technical field of near-bit well logging during drilling. The near-bit wireless constant current close short-distance transmission device comprises a transmitting part and a receiving part. After modulation treatment, a signal is sent to the receiving part through thetransmitting part in a wireless short pass mode. The transmitting part transmits the transmitting signal into the stratum according to the set rated transmitting constant current value, the rated transmitting constant current value of the transmitting signal is dynamically monitored and adjusted, and stable transmitting power is obtained. The near-bit wireless constant current close short-distance transmission method and device are provided, the transmitting power consumption problem under different-electrical-resistivity stratum conditions in the drilling-following process is avoided, the structure is simple, achieving is easy, and circuit damage caused by tool high transmitting power consumption can be avoided effectively.

The invention discloses an electric motor coach storage battery protection system and a method thereof, an auxiliary power supply provides a working power supply for a system voltage sampling circuit and maintains a power supply for a processor in a deep dormant state, and a main power supply is controlled by a main power supply control circuit and provides a working power supply for the system during normal work. A charging control circuit is respectively connected with the processor and a charger, the charger is connected with an automobile storage battery, the voltage sampling circuit is connected with the automobile storage battery and the processor, and by automatically detecting the voltage value of the automobile storage battery, when the voltage is reduced to be required to charge the automobile storage battery, the system is automatically connected with the vehicle-mounted DC / DC charger to charge the automobile storage battery; the voltage of the current battery is monitored in real time, and when the battery is fully charged and the voltage rises to a set voltage value, the system disconnects the charger and enters a deep sleep mode, and when the voltage of the storage battery drops again and needs to be charged, an external sampling circuit provides a trigger signal to wake up the system and charge the storage battery again.

There is provided a vehicle-mounted video recording apparatus. The vehicle-mounted video recording apparatus includes a sub-battery being charged with voltage generated by a solar cell, a power controller supplying an operating voltage using a first voltage from a main vehicle battery and a second voltage from the sub-battery, and a video recorder being supplied with the operating voltage from the power controller.

The present invention discloses a medium and long term electricity consumption prediction method based on an ARMA model. The method comprises: obtaining power consumption data of an area to be predicted in a preset time quantum, taking the obtained power consumption data as an original data sequence for performing preprocessing, and if the original data sequence satisfies a modeling condition, taking the original data sequence as a current data sequence, and if the original data sequence does not satisfy the modeling condition, performing reprocessing; determining a preset time quantum; and finally establishing an ARMA model, determining an ARMA model function of prediction power consumption corresponding to the next time quantum continuous with the preset time quantum according to the current data sequence, and according to the ARMA mode, calculating the prediction power consumption of the next time quantum.

The invention relates to an energy storage type power grid peak shaving system, which comprises energy storage equipment connected with a power grid, power grid peak shaving controllers II and a management platform. Each power grid peak shaving controller II is provided with a unique ID code. All the ID codes are uniformly grouped and managed by the management platform; the management platform receives a difference percentage difference value A between a real-time load of a current power grid and an expected load difference calculated by power grid dispatching and sends the difference percentage difference value A to the power grid peak shaving controller II; the power grid peak shaving controller II orderly charges the energy storage equipment according to the priority of the ID codes andgrouping under the instruction of the management platform difference value A so as to increase the power consumption of the power grid or feed back the power stored by the energy storage equipment tothe power grid. The bidirectional communication between the management platform and the power grid peak shaving controller II is utilized to realize that the power utilization end consumes more powerin the valley period of the power grid and consumes less power and feeds back power in the peak period, thereby reducing the peak-valley difference of the power grid, and enabling power generation, power supply and power utilization to be more stable, stable, safer and more economical.

The invention discloses an energy-saving control method and system for ceramic raw materials. According to preset slurry parameter information, the quantity of the raw materials needing to be added and the quantity of water needing to be added are determined, material adding is automatically controlled according to the quantity of the raw materials needing to be added, water adding is automatically controlled according to the quantity of the water needing to be added, and operation of a ball mill is automatically controlled based on the slurry parameter information, so that automatic control over material adding, water adding and operation of the ball mill is achieved, the problem that manual control leads to large errors is avoided, the water content of ball-milled slurry is met, and the time and electricity consumption for ball milling are stabilized. In addition, the quality of the ball-milled slurry can be ensured, and production efficiency and production process quality are improved.

It is a plasm screen drive circuit, wherein, the video conversion circuit input end of its video frequency source is connected with analog video signals and output end is connected with video signal process circuit. The image process circuit input end of the main control circuit is connected with the output end of the video signal process circuit and output end is connected with video storage circuit. The output end of the video storage circuit is connected with line drive circuit. The output end of the power self-adjusting circuit is connected with the input ends of system control circuit and row drive circuit. The output end of the system control circuit is connected with the input ends of sustain wave generating circuit and energy regain circuit.