883results about How to "Meet power needs" patented technology

The invention relates to a direct-current micro-grid system and a control method thereof. The direct-current micro-grid system comprises a direct-current power distribution circuit, a bi-directional AC/DC (alternating current/direct current) rectifying/inverting device, a distributed energy generating device, an energy storing device, direct-current loads, alternating-current loads, a urban microclimate interactive system, a clock interactive system, a micro-grid control system and micro-grid protecting devices, an upper scheduling management system is arranged in the micro-grid control system so as to form layered management for micro-grid energy. The direct-current micro-grid control method includes: entering a grid connection mode or an island model according to working state of a large power grid, and determining the working states of the energy storing device and the distributed energy generating device according to information of the urban microclimate interactive system and the clock interactive system. The direct-current micro-grid system can independently supply power to the alternating-current and the direct-current loads and can be connected with a power grid to generate power according to processed result of urban microclimate interactive information, so that requirements on power supply for users are met, cost is reduced, designing, controlling, operation and maintenance of a micro-grid are benefited, and reliability, economy and efficiency of the micro-grid are effectively improved.

The invention relates to an in-situ submarine natural gas hydrate exploiting device and a method thereof, and belongs to the technical field of exploitation of natural gas hydrates. The exploiting device comprises a solar and wind power generating system, a rotary telescopic water gun, an insulating pipeline, a conveying pipeline, a sleeve pipe, an ocean platform, a sea water pump, an electric heater, a CO2 liquid storing tank, a decomposition accelerator storing tank, a high-pressure pump, a pressure gauge, a filtering device, a water storing tank, a gas-liquid separator and a gas recovering device. A thermal activation method and a chemical reagent catalyzing method are utilized to trigger a decomposition reaction of the natural gas hydrate, and then the high-pressure CO2 jetting technology is utilized to enable the natural gas hydrate to be cut while a substitution reaction occurs. According to the invention, the natural gas hydrate is exploited by fully utilizing rich solar power and wind power in ocean areas, so that the effects of cleaning and environmental protection are realized; the thermal activation method and the chemical reagent catalyzing method are matched with the CO2 substitution method, and therefore the exploitation rate is improved, the dosage of a chemical reagent is reduced, the stability of submarine geology is protected effectively, and meanwhile the greenhouse gas is treated to a certain extent.

The invention discloses bridge equipment comprising a matrix arranged above a base and an upper frame arranged above the matrix, wherein a fourth driver is arranged at the bottom in the base, the top of the fourth driver is connected with a rotary column, an extension end at the top of the rotary column penetrates through the inner wall of the base and is fixedly connected with an end face of the bottom of the matrix, a bearing is fixedly arranged between the matrix and the base, an accommodation cavity is formed in the matrix, a first hollow groove and a second hollow groove are formed in the matrix at the top of the accommodation cavity, a chute is formed in a top wall in the first hollow groove, a fetching groove is formed in an outer wall of the matrix on the right side of the accommodation cavity, a through groove and a clamping groove are formed between the fetching groove and the accommodation cavity, a rotating shaft arranged to extend up and down is arranged in the accommodation cavity, an extension segment at the top of the rotating shaft penetrates through the inner wall of the matrix and stretches into the first hollow groove, a first toothed wheel is fixedly arranged at the tail of the rotating shaft in the first hollow groove, a reel is fixedly arranged on the rotating shaft in the accommodation cavity, conducting wires are wound on the reel, a slide block is arranged in the chute, the bottom of the slide block stretches into the first hollow groove, and a first driver is arranged in the end face at the bottom of the slide block. The bridge equipment disclosed by the invention has the advantages of simple structure, convenient operation, capability of realizing automatic take-up and high safety.

The invention discloses a speed-adjustable double-motor multi-mode power system. The speed-adjustable double-motor multi-mode power system comprises a main drive motor, an auxiliary motor, a first clutch, a second clutch and a single-row planetary gear train. The single-row planetary gear train comprises a sun wheel, a planetary wheel, a planetary carrier, a gear ring and a gear ring brake, wherein the planetary wheel is arranged on the planetary carrier, the sun wheel is meshed with the planetary wheel, and the planetary wheel is meshed with the gear ring. The main drive motor is connected to the sun wheel through a drive shaft, the auxiliary motor is coupled to the gear ring through the first clutch and is coupled to the sun wheel through the second clutch, and the planetary carrier is the power output end of the double-motor multi-mode power system. The speed-adjustable double-motor multi-mode power system greatly improves the working efficiency of double motors and fully utilizes the performance of the double motors. The invention further discloses a speed-adjustable double-motor multi-mode driving method.

The invention belongs to the technical field of wind power generation, and particularly provides a power adjusting method and a power adjusting device in a wind farm. The method comprises the following steps of: 1) acquiring an effective power demand value of the wind farm in real time, and taking the effective power demand value as target output power Pr of the wind farm; 2) acquiring the current actual output power P of the wind farm; 3) calculating a power adjusting value of the wind farm according to the current actual output power P and the target output power Pr of the wind farm; 4) determining a power adjusting strategy on the basis of the power adjusting value; and 5) controlling the working state of corresponding fans in the wind farm on the basis of the power adjusting strategy; and repeating the step 2) to the step 5), till the output power of the wind farm meets the power demand of a power grid. In the power adjusting method and the device provided by the invention, the output power of the wind farm can be adjusted in time and accurately, the stability and the safety of the operation of the fans are improved and the labor cost also can be greatly saved simultaneously.

The invention relates to a hybrid vacuum sweeper. A chassis is provided with an engine, a gear transfer case, a silicon rectifying generator, a storage battery, a power converter, a motor, a dustbin, a suction tube, a suction cup, a fan, a water tank and a water pump. The engine drives the silicon rectifying generator and the fan respectively. The silicon rectifying generator is connected with the power converter and the storage battery to output generated electric current. The power converter is connected with the motor to drive a rear axle shaft to drive the vacuum sweeper to run. The fan sucks dust and garbage on the ground in front of the suction cup into the dustbin through the dustbin, the suction tube and the suction cup. The water pump pumps water from the water tank to control the dust in the suction tube and the suction cup by a wet method. In the invention, a hybrid drive technology is applied to a special urban environment sanitary vehicle with vehicle-mounted operating devices, and the special vehicle has an oil-saving effect due to the use of a single engine as well as good operation effects; and a hybrid drive mechanism continuously generates electricity and overcomes the drawback that an electrical vehicle can not work for a long time due to the limitation from the capacity of the storage battery.

The invention discloses a dual-channel variable-geometry rocket-based combined cycle engine, which adopts a dual-channel structure and realizes good work in a wide flight range through a partitioned combustion mode; the dual channels work simultaneously in a low-speed flight state to complete ejection mode and sub-stage The work in the low-speed section of the combustion mode; in the high-speed flight state, it is converted to the high-speed channel to work alone, and completes the work of the high-speed section of the sub-combustion mode and the super-combustion mode. The variable geometry method that the top pressure plate rotates around the rotating shaft is used to realize the adjustment of the small shrinkage ratio in the low-speed flight state and the large shrinkage ratio in the high-speed flight state, and meet the air capture and airflow compression requirements under different flight Mach numbers in a wide range of the engine. The binary mixed pressure inlet is adopted, the top pressure plate and the side plate of the inlet have good adhesion, and the mechanical dynamic seal is easy to realize, which is suitable for engineering applications; it meets the power requirements of different working modes of the aircraft. The top pressure plate and the conversion plate are respectively connected to the rotating shaft of the double fulcrum structure, the structure is rigid, and the high temperature sealing is easy to realize.

The invention relates to a charging control circuit of an intelligent charger. The charging control circuit comprises a load detection circuit, a voltage input circuit, a control circuit and a charging circuit, wherein the load detection circuit is used for detecting and recognizing a charging protocol type of a load accessed to the intelligent charger, and generating a feedback signal according to the recognized charging protocol type; the voltage input circuit is used for a user to input an adjustment voltage value; the control circuit is used for receiving the feedback signal and the adjustment voltage value and generating a voltage control signal according to the feedback signal or the adjustment voltage value; and the charging circuit is used for adjusting an input voltage according to the voltage control signal and then forming an output voltage to charge the load. By the above charging control circuit of the intelligent charger, except the power supply demand for a normally-used device is met, the electricity utilization demand of a particular load also can be met, and the charging control circuit is high in compatibility. The invention also relates to the intelligent charger.

The invention discloses a hay mower driven by double battery packs. The control problem of battery discharging of the hay mower driven by the double battery packs is solved. The hay mower driven by the double battery packs comprises a cutter disk and a motor used as a power device, the cutter disk is provided with a control circuit which comprises a microcontroller, on one hand, the microcontroller is connected with a motor to drive the control circuit to emit a driving control signal, on the other hand, the microcontroller is connected with a current detecting circuit to receive a current signal of the motor, the motor is powered by the first battery pack and the second battery pack which are in parallel connection, a first switch circuit is arranged between the first battery pack and the motor, a second switch circuit is arranged between the second battery pack and the motor, and the control end of the first switch circuit and the control end of the second switch circuit are connected to the microcontroller. The double battery packs are in parallel connection to provide power for the motor of the hay mower, power supply by one single battery pack can be achieved, power supply by the double battery packs can also be achieved, the power supply situation is adjusted according to actual needs, so that electric energy waste is reduced, and the demand for the power of the motor can be met.

The invention discloses a demanded power predication based variable-area optimal energy management control method and device, and belongs to the field of hybrid power off-road vehicle energy management. The method comprises the following steps: selecting longitudinal vehicle speed and longitudinal accelerated speed as predicating variables by designing a self-adaptive Markov chain forecasting method, thereby realizing indirect predication of demanded power; controlling the vehicle to work in two different drive modes by calculating and comparing equivalent energy consumption of a hybrid drivemode with that of a pure electric mode in real time; taking the equivalent fuel oil consumption minimum control strategy as developing basis, considering traveling working condition characteristics and demand characteristics of the off-road vehicle, performing real-time solving of an optimizing area according to a demand powder variable, and designing a variable-area equivalent fuel oil consumption minimum control strategy. The demanded powder predication method can improve demanded powder predication precision and self-adaption as well as power system response characteristics, reasonably switches a working mode, optimizes general energy consumption characteristics of the system, and improves travelling stability while guaranteeing working stability of the power system.

The invention discloses a device and method for exploiting terrestrial natural gas hydrates through CO2 fracturing and displacing. The device is composed of a CO2 control system, a natural gas hydrate control system and a power generation control system; the power generation control system is connected to the CO2 control system and the natural gas hydrate control system, and the CO2 control system is connected with the natural gas hydrate control system. According to the device and method, by combining CO2 dry fracturing with CO2 displacing, the problems that when the hydrates are exploited only by adopting CO2 displacing, the speed and the efficiency are low are solved, hydrate exploiting and greenhouse gas burying and storing are integrated into a whole, and meanwhile the stability of a hydrate layer in the exploiting process is guaranteed. Information such as the pressure, the temperature and the permeability of the hydrate layer can be collected in real time in the fracturing and exploiting process, the exploiting speed of hydrate decomposition gas and improvement treatment on the reservoir permeability are adjusted and controlled according to the information, and therefore the purpose of efficient and safe exploiting is achieved.

The invention provides a deep sea optical cable and producing method thereof, relating to a deep sea optical cable with a tension-resistant compact composite structure and producing method thereof. The structure of the deep sea optical cable comprises a plurality of full chromatogram high-strength optical fibres, high-strength anti-corrosion stainless steel tubes, ointment exclusive for sea cable optical fibre, special-high-strength armouring wires with three diversified diameters, a heavy viscous waterproof agent, metallic conductor brass pipes, organic plastic composite materials, and a polythene insulation material protective layer. High-strength anti-corrosion stainless steel tubes are sleeved on several full chromatogram high-strength optical fibres, ointment exclusive for sea cable optical fibre is filled into the high-strength anti-corrosion stainless steel tubes, special-high-strength armouring wires with three diversified diameters are inlaid on the outside of the high-strength anti-corrosion stainless steel tubes and are filled with heavy viscous waterproof agent of sufficient amount, the special-high-strength armouring wires are covered with the metallic conductor brass pipes, so that special tension-resistant compact composite structure is formed. Organic plastic composite materials are added on metallic conductor brass pipes, and then an insulation material protective layer is extruded thereon.

The invention discloses an implantable self-adaptive wireless power transmission system, which includes an external energy transmission module, an internal energy collection module and an adaptive feedback loop; the external energy transmission module includes a power amplification circuit, a signal source and a drive, and a transmission coil ; The power amplifying circuit adopts Class D, and is a voltage switch type; the self-adaptive feedback loop mainly includes in vivo information collection, in vivo and in vitro wireless communication, and in vitro energy control; the entire feedback structure is composed of two loops of in vivo feedback and system feedback circuit structure; the energy harvesting module in the body includes a receiving coil, a coupling capacitor, a full-wave rectification filter, a PWM modulation module, and an LSK modulation circuit. The invention proposes an implantable self-adaptive wireless power transmission system, which can not only meet the uninterrupted power supply requirements of implanted devices, but also make the energy transmission controllable and avoid excessive energy transmission.

The invention discloses a low power consumption Bluetooth based smart mobile terminal control system. The system comprises an application unit, a low power consumption Bluetooth beacon, a GPS beacon, a two dimensional code beacon, a data transmission module, a server and an alarm unit. The application unit is installed on a smart mobile terminal, can recognize the low power consumption Bluetooth beacon automatically and start a control function, and sends control data to a server through the data transmission module. The low power consumption Bluetooth beacon broadcasts a Bluetooth data package at regular intervals. After the smart mobile terminal enters a control site, the GPS beacon activates the control function automatically. The two dimensional code beacon activates the control function after being scanned. The data transmission module is installed on the server, and is used for transmitting data between the server and the smart mobile terminal. The server is used for storing connection information and smart mobile terminal information, and informing the alarm unit after the smart mobile terminal is abnormal. The alarm unit triggers alarming according to informing information. The system can perform precise regional control on functions of call, short message, internet, camera and record and so on of the smart mobile terminal, can meet the security and confidentiality demands of various privacy-related places, and has the punch in function.

The invention discloses a complex-surface recast-layer-free single/group-hole multi-station electric spark-electrolytic machine tool which comprises a machine tool body, a cathode system, a working solution circulating system, a power system and a control system. A control circuit of the power system controls switching among different-waveform power supplies according to different machining requirements, a power signal is applied to tool electrodes and a workpiece power supply system via an output circuit, and a single-loop or multi-loop power supply mode is adopted to independently supply power to the tool electrodes. A working solution circulation switching device can meet special requirements on free switching of internal and external solution flushing of tube electrodes for electric spark-electrolytic combined machining, and high-low pressure solution flushing and intermittent solution flushing can be realized; a clamping system of the cathode system can clamp single or multiple tool electrodes to realize single-hole and group-hole multi-station synchronous machining. The machine tool can realize electric spark-electrolytic combined hole-forming machining, and is simple in mechanism, high in machining efficiency and wide in application range; machined hole walls have no defects such as recast layers and micro cracks.

The invention discloses a method and device for complementing the temperature and pressure of a pressure sensor based on a two-dimensional orthogonal function. The method comprises the following steps of: firstly, establishing a two-dimensional orthogonal function complementary model which can be used for realizing temperature compensation on a pressure signal or conversely carrying out real-timecompensation on a sensor temperature by using the pressure signal; then calculating a compensation factor of the model by using a least square fitting algorithm based on the two-dimensional orthogonal function; and finally substituting sampled data into the model to carry out a compensation calculation. The device comprises a piezoresistive pressure sensor, an MCU (Micro-programmed Control Unit) platform and an upper computer. The MCU platform comprises a single chip, an operational amplifier, a memory, a DA (Digital to Analog) conversion chip and a serial communication chip. In the invention, an ingenious circuit design can be effectively carried out according to the property of the pressure sensor and the implementation method is simple and novel; and the device provided by the invention has the characteristics of low cost, good real-time performance, high robustness and high precision.

The present invention discloses a city domestic rubbish anaerobic schizolysis gasification processing apparatus and technical skill thereof, wherein the apparatus is composed by a rubbish storage hopper, a converting kiln, a compressor, an organic matter converting kiln and a sewage disposal system etc. The technical skill includes no exogenous source low energy consumption dispose and system secondary pollution control technique etc. Technical problems like system oxygen exhaust technology, domestic rubbish dehumidifying technology, flowing technology of solid material inside the system, heating technology during the process etc. are solved through the invention. Harmlessness and zero discharge, energy self-supply and basic energy source and substance recirculation in the process of production, social low cost input and facilitating operation of rubbish treatment, and every saving, exhaust reducing and material cycle in natural world can be realized.

The invention provides a power meteorological numerical weather forecasting method and device based on multi-space-time scales. Firstly, the collected multi-source heterogeneous power meteorological observation data are fused. Then the mesoscale numerical weather forecast model is obtained. Finally, probability forecast, climate forecast, short-term and impending forecast and refinement forecast are carried out for electric power meteorological elements. Based on the fused electric power meteorological data, based on the mesoscale weather forecast model, an in-depth learning method, a method for real-time four-dimensional data assimilation and a fast cycle update method, a horizontal mesh resolution optimization method, a perturbation method of mode physical parameters, a continuous integration method are adopted and can realize the short-term, short-term, fine-grained, probability forecast and climate forecast, and can support multi-simulation function of new energy resources assessment, short-term and ultra-short-term power forecast, lightning, rainstorm, gale and other disasters early warning of electric power and meteorological numerical forecast, effectively improve the accuracy of meteorological forecast data, and comprehensively improve the support level of meteorological service power grid.

A system a first mobile body configured to support a turbine engine and an auxiliary skid communicatively and fluidly coupled to the turbine engine. The auxiliary skid includes one or more interconnects configured to support a turbine engine component. The system also includes a second mobile body configured to support a generator. The first and second mobile bodies are configured to align a removable coupling between the turbine engine and the generator.

The invention discloses a photovoltaic power management method, a photovoltaic power management system and a power distribution control device. The photovoltaic power management system comprises a photovoltaic power generation system, a power transmission network, a load, a storage battery and the power distribution control device, wherein one end of the power distribution control device is connected with the photovoltaic power generation system, and the other end of the power distribution control device is connected with the power transmission network, the load and the storage battery. The power distribution control device is used for determining a power distribution scheme matched with a current power supply mode on the basis of the current power supply mode when photovoltaic power inputted by the photovoltaic power generation system is acquired and applying the power distribution scheme to execute corresponding power distribution operations between the storage battery and the power transmission network or the load according to electrification requirements of the power transmission network or power supply requirements of the load. By the photovoltaic power management system, reasonable distribution of photovoltaic power between the storage battery and the load or the power transmission network can be realized according to the current power supply mode and the electrification requirements of the power transmission network or the power supply requirements of the load, and accordingly power supply requirements of users can be met while waste of surplus photovoltaic power is avoided, and photovoltaic power utilization rate is increased.

The invention discloses an energy-saving control method for paver. Presetting paving thickness, paving width, and paving velocity in paving work are inputted into the collocating cell of engine working point in controller. According to it presetting rotating speed value of engine is obtained. The controller adjusts the engine of paver so that the actual rotating speed of paver is equal to the rotating speed of engine according to the presetting rotating speed value of engine obtained. The method in invention is provided with simple operation, high automaticity. It can adjust the rotating speed of engine according to the change of actual working condition so that not only the whole efficiency is improved but also it is provided with the energy saving under the presence of ensuring working performance.