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59 results about "Generating unit" patented technology

Method for adjusting and controlling all parameters of water-turbine generator set

ActiveCN103306886AImprove efficiencyGreat effortHydro energy generationMachines/enginesOperating pointWater turbine
The invention discloses a method for adjusting and controlling all parameters of a water-turbine generator set, which comprises the following step: based on the most advanced guide vane and blade double-regulation water-turbine generator set (KAPLAN type) at present, carrying out optimal adjustment on three parameters of the water-turbine generator set, namely, guide vane opening, blade opening and water-turbine rotating speed through an intelligently-optimized intelligent algorithm model to realize highest efficiency or maximum output of the generator set and obtain an optimal operating point. According to the method, the optimal solution of a feasible solution domain formed by all the adjustable parameters of the water-turbine generator set can be obtained to realize the target of highest efficiency or maximum output on a whole operation domain of the water-turbine generator set; and compared with the efficiency of the most advanced double-regulation generator set at present, the efficiency is improved by 3-10 percent, therefore, the method is a new breakthrough for realizing efficient and economic operation of a hydropower station.
Owner:SHENZHEN ENLAIJI ENERGY TECH CO LTD

Navigation system realizing enhanced navigation function through camera

InactiveCN107228681AEasy accessAvoid distractionsInstruments for road network navigationHead-up displayRoad surface
The invention provides a vehicle-mounted navigation system. The vehicle-mounted navigation system comprises a vehicle-mounted GPS (Global Positioning System) antenna, a camera, an AR (Augmented Reality) head-up display and a vehicle-mounted navigation host, wherein the vehicle-mounted GPS antenna is used for locating and obtaining a world coordinate system; the camera is used for carrying out real-time image collection on a road condition ahead; the vehicle-mounted navigation host comprises a coordinate system conversion unit which is used for carrying out image recognition and analysis on a road condition image collected by the camera and converting the world coordinate system to a camera image coordinate system, a model generating unit which is used for generating a 3D (Three-dimension) model of a marching road according to the camera image coordinate system, a virtual navigation information generating unit which is used for generating virtual navigation indicating information according to the 3D model of the marching road and an output unit which is used for outputting the virtual navigation indicating information to the AR head-up display; the AR head-up display is used for projecting the virtual navigation indicating information to a windshield and realizing the effect of overlaying the virtual navigation indicating information to an actual road.
Owner:杭州海藻科技服务有限公司

On-line traffic statistical method and device based on mobile communication terminal

InactiveCN101459523AEasy to understandMetering/charging/biilling arrangementsMessage lengthTraffic capacity
The invention provides a netflow statistic device based on the mobile communication, which comprises a message receiving unit for receiving a message, a message type judgment unit for judging whether the message is a WAP message, a message length generating unit for generating the data segment length of the WAP message according to the WAP message data structure, a netflow statistic unit for calculating the netflow of a mobile communication terminal according to the data segment length of the WAP message, and a netflow fee generating unit for generating the internet fee of the mobile communication terminal according to the netflow. The device is convenient for users to directly learn about the netflow and the fee through the mobile phone.
Owner:INSPUR LG DIGITAL MOBILE COMMUNICATIONS CO LTD

Image processing apparatus, imaging apparatus, and image processing method

An image processing apparatus includes a size reducing unit that reduces sizes of a plurality of continuous images, which are still images obtained by continuously capturing images of a moving object, to thereby generate reduced continuous images; a mask generating unit that extracts moving object regions from the reduced continuous images, to thereby generate reduced moving object extraction mask images; a size restoring unit that enlarges the reduced moving object extraction mask images to the same size as original sizes of the continuous images that are not reduced by the size reducing unit, to thereby generate moving object extraction mask images; and a combining unit that extracts the moving object regions from the continuous images by using the moving object extraction mask images to thereby obtain moving object images, and combines the moving object images in a predetermined one of the continuous images.
Owner:RICOH KK

Thin film forming device for forming silicon thin film having crystallinity

InactiveUS6192828B1Electric discharge tubesSemiconductor/solid-state device manufacturingElectric dischargeSilicon thin film
An insulating member is interposed between a film formation chamber container and a plasma chamber container. Both containers are adjacent to and communicated with each other. In the film formation chamber container, a base material holder is provided for holding the base material. Raw material gas is introduced into the plasma chamber container and ionized by high frequency electric discharge, to generate plasma. A high frequency electrode and a high frequency electric power source are provided as a plasma generating unit. There is provided a porous electrode 30, the electric potential of which is the same as that of the plasma chamber container 24, between both chambers 22, 24 to partition both chambers. A pulse electric powder source for impressing bipolar pulse voltage, in which a positive polarity portion and a negative polarity portion are alternately repeated, is provided between the base material holder and both of the plasma chamber container and the porous electrode 30, the electric potential of which is the same as that of the plasma chamber container 24.
Owner:NISSIN ELECTRIC CO LTD

Ion beam emission source for outputting single ionic energy

The invention relates to an ion beam emission source capable of outputting single iron energy so as to solve the problems of the prior art that the extracted ion does not have single energy, the quality of the film is greatly influenced and the repeatability of ion beam assistance is difficult to realize. The technical proposal is as follows: the emission source comprises a gas discharge chamber, a focusing magnetic field generating unit, an ion energy selector and a beam expanding magnetic field generating unit; the gas discharge chamber comprises an anode, a cathode and an extracting grid plate; the ion energy selector comprises an upper magnetic polar plate and a lower magnetic polar plate which are oppositely arranged, and a selecting cylinder which is formed by a first electrode plate and a second electrode plate which are oppositely arranged; polar plate insulating members are arranged among the upper magnetic polar plate, the first electrode plate, the lower magnetic polar plate and the second electrode plate; and the centers of an inlet cover plate and an outlet cover plate at two ends of the selecting cylinder are respectively provided with an energy band limit through hole. Compared with the prior art, the emission source has the advantages that: 1. ion with single energy can be generated and extracted; 2. the energy of the ion is adjustable; and 3. the manufacture process is simple.
Owner:XIAN TECHNOLOGICAL UNIV

Respiratory-self-adaptation portable oxygen generator

PendingCN108939246AEasy to adjustReduce sensitivityRespiratorsMedical devicesRESPIRATORY MOVEMENTSEngineering
The invention relates to the field of health-protection medical instrument equipment, and discloses a respiratory-self-adaptation portable oxygen generator. The oxygen generator comprises an oxygen generating unit, a self-adaption impulse oxygen supplying unit and a control unit, wherein the oxygen generating unit is used for generating medical concentration oxygen, the self-adaption impulse oxygen supplying unit comprises an impulse oxygen generating unit and a control unit, and the oxygen impulse generating unit comprises an oxygen supplying pipeline, an electromagnetic valve and a three-waypiping; the oxygen supplying time starting point T1 and the oxygen supplying duration t are determined by the control unit according to respiratory curve data of a user, when the oxygen supplying time starting point T1 is reached, the electromagnetic valve is switched on by the control unit to supply oxygen, and when the oxygen supplying duration t is reached, the electromagnetic valve is controlled to be switched off by the control unit to end oxygen supplying. The respiratory-self-adaptation portable oxygen generator has the advantages that the respiratory movement of the user can be effectively recognized, oxygen self-adaption supplying is achieved for the user to breathe, and oxygen supplying control is accurately conducted.
Owner:CONTEC MEDICAL SYST

Closed-loop control method for transient power angle instability of power system

ActiveCN105244887AImprove effectivenessPower network operation systems integrationSingle network parallel feeding arrangementsTransient stateWide area
The invention discloses a closed-loop control method for the transient power angle instability of a power system, and the method comprises the steps: obtaining real-time measurement information from a wide area measurement system; determining a generator set to be deleted according to the real-time measurement information and an inertia center of the power system, and carrying out machine switching control; continuously monitoring the operation state of the power system based on the wide area measurement system; judging the stability of the power system according to a transient power angle instability criterion; taking machine-switching control measures if the power system is not stable till the power system is stable, thereby forming a closed-loop control strategy, and improving the effectiveness of transient power angle instability control measures of the power system.
Owner:ELECTRIC POWER RESEARCH INSTITUTE, CHINA SOUTHERN POWER GRID CO LTD

Multi-fan parallel connection type wind-light complementation power generation system

The invention relates to a wind-solar hybrid grid-connected power generation system formed by parallel connection of multiple wind generating sets. The grid-connected power generation system comprises at least two wind generating sets, a solar cell array, a control device and a grid-connected inverter. The at least two wind generating sets are respectively connected with rectifiers, each of the rectifiers is interconnected with the control device; the solar cell array is interconnected with the control device, and the control device is interconnected with a grid-connected inverter. Compared with the prior art, the grid-connected power generation system has high reliability, low cost and convenient maintenance when the power is below 300KW, and is suitable for the current situation of power transmission and transformation of Chinese rural power grid.
Owner:SHANGHAI WANDE WIND POWER

Biogas fermentation gas supply engineering control system

InactiveCN103305413AImprove real-time performanceImprove stabilityBioreactor/fermenter combinationsBiological substance pretreatmentsAutomatic controlEngineering controls
The embodiment of the invention provides a biogas fermentation gas supply engineering control system, comprising a master control sub-system, a programmable logic controller (PLC) control sub-system, a local control sub-system and a controlled sub-system, wherein the PLC control sub-system is respectively connected with the master control sub-system and the local control sub-system; the controlled sub-system is connected with the local control sub-system; the controlled sub-system comprises a material collecting unit, a degritting blending unit, a biogas generating unit, an air storage unit, a mud-water separating unit and a biogas power generation unit; the master control sub-system is used for automatically controlling the controlled sub-system through the PLC control sub-system; and the local control sub-system is used for switching the controlled sub-system between a local manual control state and a remote control state. By adopting the system, the instantaneity, the stability and the reliability of a biogas fermentation gas supply system are significantly improved; information management is facilitated; the operating cost is reduced; the working efficiency is improved; an accident is prevented; and the biogas fermentation gas supply engineering control system has high practical application value.
Owner:北京愿景宏能源环保科技发展有限公司

Minimum clearance control system and method, electronic equipment and storage medium

The invention discloses a minimum clearance control system and method, electronic equipment and a storage medium. The control method comprises the following steps that a bending moment of a main shaftis detected through a bending moment sensor to obtain a bending moment value; whether the bending moment value is greater than a first threshold or not is judged, and if not, a pitch angle is set tobe a target value, wherein when the pitch angle is the target value, a wind power generator unit can capture the maximum wind energy; and if yes, a static thrust reduction function of the wind power generator unit is started. Starting of the static thrust reduction function is realized when the bending moment of the main shaft is greater than the certain threshold, and the accuracy of starting ofthe static thrust reduction function is high, which is beneficial to ensuring the safety of the unit. In addition, when the static thrust reduction function is not started, the wind power generator unit can also keep capturing the maximum wind energy, which is beneficial to ensuring the generating capacity.
Owner:SHANGHAI ELECTRIC WIND POWER GRP CO LTD

Wind power penetration limit determination method based on peak-regulating balance constraint

InactiveCN104882910AAvoid the impact of calculation accuracyHigh precisionData processing applicationsSingle network parallel feeding arrangementsWind power penetrationElectric power system
The invention discloses a wind power penetration limit determination method based on peak-regulating balance constraint. The method comprises: firstly, solving wind power penetration limit of each selected time-in-point in a time interval [ton, toff], on each time-in-point, using a discrete variable search algorithm to perform maximum search on UGt, searching a generator set state vector UGt in a generator set state space [omega], the generator set state vector UGt making wind power capacity an electric system can accept reach the maximum in the time-in-point, and through a wind power penetration limit model to calculate the wind power penetration limit value at the moment; and performing minimum search on the wind power penetration limit values obtained in all time-in-points, to obtain the minimum value of wind power penetration limit in the interval of [ton, toff]. The method uses time combining with the generator set as decision variables, and an improved bender's decoupling algorithm is used for solution and optimization, preventing influence on calculation precision by selection of operating methods of an electric system and setting of original values. The method can improve precision and efficiency of wind power penetration limit calculation.
Owner:STATE GRID SICHUAN ECONOMIC RES INST +2

Frame-portable type variable frequency generator set

PendingCN111140346AReduce output noiseIncrease powerSpeed sensing governorsMachines/enginesFrequency changerFuel tank
The invention discloses a frame-portable type variable frequency generator set. The frame-portable type variable frequency generator set comprises an electric appliance panel assembly, a generator assembly, an oil tank assembly, a set frame assembly and a frequency converter assembly, wherein the electric appliance panel assembly, the generator assembly, the oil tank assembly and the frequency converter assembly are all connected to the set frame assembly, the generator assembly and the frequency converter assembly are electrically connected with the electric appliance panel assembly, and theoil tank assembly is connected with a fuel pipe of the generator assembly. According to the frame-portable type variable frequency generator set, an engine is used as kinetic energy, and the frame-portable type variable frequency generator set and a novel digital generator are arranged at the original flywheel end of the engine to form a built-in novel generator set structure. An air suction heatdissipation system is arranged at the output end of the engine to carry out air cooling and heat dissipation on a frequency converter, the frequency converter is the computer of the set and controls an automatic speed regulation system of the engine, a power supply of an inverter digital generator and various automatic requirements, so that the set is lower in output noise, higher in power and higher in carrying capacity, and the power supply is output with various performance parameters being better.
Owner:宁德市犇田动力有限公司

Offshore low-voltage ride-through detection method for wind generating set

PendingCN113162118ARestore actual stateImprove identitySingle network parallel feeding arrangementsWind energy generationControl theoryHeavy load
The invention discloses an offshore low-voltage ride-through detection method for a wind generating set. The method comprises the following steps of constructing a simulation testing machine system, and calculating corresponding current-limiting reactance and short-circuit reactance according to a to-be-detected voltage drop degree and the simulation testing machine system; simulating no-load operation of the testing machine system; simulating a test point power grid fault, and generating a required voltage drop according to a test standard; the output power of the simulation testing machine system being adjusted to be 10%-30% of the rated power, and a low-voltage ride-through test under a light load being carried out; and S5, adjusting the output power of the simulation testing machine system to 80-95% of the rated power, carrying out a low-voltage ride-through capability test under a heavy load, and recording test data. Based on different operation history and maintenance work of each unit of the wind power plant, similarity between the wind power plant unit and the actual wind power plant unit is calculated, the product identity is improved, an actual state of the actual wind power plant unit is greatly restored, and the method has practical significance and effect on field low voltage ride through detection.
Owner:SHANDONG JIANZHU UNIV
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