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37results about How to "Reasonable value" patented technology

Sub-prime automobile sale and finance system

A system to provide automobile financing to individuals with relatively lower credit scores or ratings, or no credit rating, due to lack of credit or lending purchases, that would otherwise only qualify for sub-prime, higher interest loans. Due to the overall system structure, lower rate interest loans can be extended to participants. The system utilizes the auto financing loan applicant's term of employment and/or other employment performance data as the principal credit criteria to qualify the creditworthiness of an applicant versus the applicant's credit score or credit rating. Applicant's driving records are also reviewed as system automobile loan approval credit criteria. Loan applicants provide employment related information and execute a letter of authorization providing the system with authority/rights to contact the applicant's employer to verify said employment information. In order to provide participants with lower interest rates than would otherwise be available through conventional channels, automobiles financed under the system must meet minimum profile criteria, including the year of the auto, the mileage, retail value relative to the wholesale value, and autos financed under the system are covered by extended warranties and have GPS systems installed for asset protection purposes. In utilizing employment term as the principal creditworthiness criteria, the system can to be offered through employers as an employee loyalty reward program.
Owner:KLINKHAMMER KIRK WILLIAM

MMC-HVDC direct current transmission line fault positioning method

The invention discloses an MMC-HVDC direct-current transmission line fault positioning method, which comprises the steps of decoupling bipolar voltage through a symmetric component transformation matrix to obtain a line mode component and a zero mode component of the bipolar voltage; carrying out VMD decomposition on the line mode component and the zero mode component, and carrying out parameter alternate optimization on the modal number k and the penalty factor in the decomposition process, so as to enable the values of the modal number k and the penalty factor to be more reasonable; performing analyzing by utilizing S transformation, positioning a fault mutation point, and accurately detecting the time when the wave head of the traveling wave arrives at two sides; and achieving accuratepositioning of the fault of the high-voltage direct-current transmission line by using a fault distance measurement algorithm for eliminating the wave velocity influence. According to the method, thenumber K of modes and the penalty factor are optimized through an alternate parameter optimization method, on the basis, the VMD is used for decomposing the traveling wave signal and extracting the intrinsic mode component of the traveling wave signal, then S transformation is used for accurately positioning a fault mutation point, and finally accurate fault positioning is achieved.
Owner:LANZHOU UNIVERSITY OF TECHNOLOGY

Method for obtaining dynamic resilience mechanical characteristic parameters of aggregates

The invention relates to the field of civil engineering, and discloses a method for acquiring dynamic resilience mechanical characteristic parameters of aggregates, which comprises the following steps: 1) deriving a stress increment constitutive equation of the aggregates, and determining a stress loading sequence according to the equation; 2) performing a dynamic triaxial test on the granules according to the stress loading sequence, recording the stress level, the stress increment, the corresponding horizontal deformation and the corresponding vertical deformation of the test, and calculating the horizontal strain increment and the vertical strain increment; 3) introducing a stress dependence model of dynamic resilience mechanical characteristic parameters; and 4) performing parameter regression analysis, and determining model parameters to obtain a nonlinear dynamic resilience mechanical characteristic parameter prediction model including dynamic resilience modulus, Poisson's ratioand orthotropic parameters. According to the method, the model for predicting the dynamic resilience mechanical characteristic parameters of the aggregate under different stress states can be established, the dynamic resilience mechanical characteristic parameters under various stress states can be conveniently and accurately obtained, and the requirements of engineering construction are met.
Owner:CHANGSHA UNIVERSITY OF SCIENCE AND TECHNOLOGY

Method for suppressing power oscillation of virtual synchronous machine of MMC interconnection converter

The invention discloses a method for suppressing power oscillation of a virtual synchronous machine of an MMC interconnection converter. The method mainly comprises the steps of obtaining a voltage equation from the AC side angle of the MMC interconnection converter of an AC / DC hybrid microgrid, establishing a power output equation of the MMC interconnection converter, establishing a power regulation relational expression of the MMC interconnection converter, obtaining a virtual synchronous machine control mechanical equation and a virtual synchronous machine reactive excitation control equation based on a power transmission principle, solving a first-order derivative and a second-order derivative of the active power in the MMC interconnection converter power output simplification equation, obtaining a reference output power expression of the virtual synchronous machine, establishing a small signal model by the virtual synchronous machine by referring to the output power expression, carrying out Laplace transformation, and calculating a characteristic root of the small signal model, and acquiring a natural oscillation speed and a damping ratio of the system. the self-adaptive virtual inertia and the self-adaptive virtual damping coefficient are designed and substituted into a virtual synchronous machine control mechanical equation based on the power transmission principle, andthe effect of restraining MMC interconnection converter virtual synchronous machine power oscillation is achieved.
Owner:XIAN THERMAL POWER RES INST CO LTD

Trade management method based on industry operation management platform and intelligent management system

The invention discloses a trade management method based on an industry operation management platform and an intelligent management system. The method comprises the following steps: setting the intelligent management system, wherein the system comprises a server and a client, and the server consists of one or more groups of classification management databases; setting the industry operation management platform, wherein the platform comprises member units which consist of a plurality of merchants and are managed in a hierarchical and right-based way; inputting merchant information into the intelligent management system in an industry classifying way, and effectively saving in a classification management database; recording and timely updating or sorting the trade details of the member units in the industry operation management platform by using the intelligent management system, converting all trade data values and saving; carrying out product trade behaviors under the restriction of the industry operation management platform according to different trade requirements by taking the industry operation management platform as a platform through the member units, and generating a price difference value in a step-by-step way, wherein the price difference value belongs to the industry operation management platform; checking the price difference value of the industry operation management platform periodically by using the intelligent management system, checking the common profit of the member units and allocating.
Owner:曾祥辉

Method for preventing thermal power of reactor core from exceeding limiting value in nuclear power plant

ActiveCN104425047AAccurate pressure settingReduce the absolute error valuePower plant safety arrangementPlant parameters regulationNuclear engineeringHigh pressure
The invention discloses a method for preventing thermal power of a reactor core from exceeding a limiting value in a nuclear power plant. The method comprises the following steps: acquiring a measured value of high pressure cylinder inlet pressure in a steam turbine, and performing proportional-integral calculation on the measured value of high pressure cylinder inlet pressure and a constant value of the high pressure cylinder inlet pressure in the steam turbine; and acting the proportional-integral calculation result and a constant steam flow value on a power control loop, and controlling the thermal power of the reactor core not to exceed the limiting value by controlling the opening of a high-pressure cylinder valve by virtue of a steam turbine adjustment system according to the proportional-integral calculation result and the constant steam flow value. For a long time, the problem that the thermal power of the reactor core exceeds the limiting value cannot be effectively solved, so that potential hazards of the reactor core easily occur under instantaneous conditions. The constant value of the high pressure cylinder inlet pressure and the constant steam flow value are reasonably set, so that the thermal power of the reactor core is effectively and automatically controlled without exceeding the limiting value by controlling the opening of the high-pressure cylinder valve by virtue of the steam turbine adjustment system according to any one constant value of the constant value of the high pressure cylinder inlet pressure and the constant steam flow value, and hazards of the reactor core and the nuclear safety problem caused by that the thermal power of the reactor core exceeds the limiting value are solved.
Owner:CHINA GENERAL NUCLEAR POWER CORP +1

Method for calculating layer speed and establishing average speed field via measurement plate method

The invention brings forward a method for calculating layer speed and establishing an average speed field via a measurement plate method. The method comprises the following steps: time-depth material of wells and time curved surfaces of all control layers are obtained, layer speed of all control layers at well points is obtained, layer speed measuring plates are drawn, a via measurement plate function relation between time and layer speed at each layer is obtained, layer speed of each layer is calculated, a speed grid of each layer is generated, an average speed body scattered point set is calculated, and a three dimensional average speed field is generated via three dimensional gridding operation. According to the average speed field generated via the method disclosed in the invention, high precision can be achieved at positions with well control; at positions without well control, reasonable speed value can be placed; good effects can be exerted, data can be easily obtained, a small amount of time is needed for establishing the average speed field, and high efficiency can be realized; the method can also help solve a problem that the average speed field which is generated via a traditional method is large in probability of in deformation and distortion in conversion from time domain data to depth domain data.
Owner:北京金双狐油气技术有限公司

Internal spline expansion sleeve structure for measuring jumping of speed reducers

The invention discloses an inner spline expansion sleeve structure for measuring the runout of a reducer, which includes an inner ring, an outer ring and a shaft; the inner ring includes an inner ring flange and an inner ring cone head fixedly connected to one side thereof , the inner ring flange is provided with an inner ring mounting hole; the outer ring includes an outer ring flange and an outer ring taper hole fixedly connected to one side thereof, and the outer ring flange is provided with an outer ring mounting hole and Disassemble the threaded hole; the taper hole of the outer ring is placed in the inner spline of the reducer, the taper head and shaft of the inner ring are placed in the taper hole of the outer ring in turn, and the mounting hole of the inner ring and the mounting hole of the outer ring are fastened by bolts. The invention uses the expansion sleeve to realize the connection between the spline in the reducer and the shaft, converts the rotation of the spline in the reducer to the rotation of the shaft, and converts the measurement of the processing accuracy of the internal spline into the runout of the end face and the stop of the reducer The measurement brings convenience to the measurement. The expansion sleeve has a simple structure, low cost, convenient disassembly and installation, and improves the measurement efficiency.
Owner:HEFEI JUYI POWER SYST CO LTD

Apparatus for treating oil-containing alkaline waste water

The invention relates to an oil-containing alkaline wastewater treatment process and equipment. The process uses oil-containing alkaline wastewater and industrial acid water as raw material for the neutralization reaction. Qualified water after the neutralization reaction is pre-treated through an air floatation method, enters a biochemical reaction pool for the biochemical treatment when being cooled by a cooling tower and aerates in the biochemical pool. Oil in the water is degraded by microorganism. The sludge settlement treatment is implemented through a sediment pool to remove suspendersin the water. The wastewater after the sediment enters a biological filter again for the deep treatment to satisfy the discharging requirements. After the treatment, the index COD of the water is less than or equal to 80mg / l, SS is less than or equal to 10mg / l and oil is less than or equal to 5mg / l. With the biochemical technology used for the oil removal, the consumption of a system is reduced. With the biological filtration used as a deep treatment system, the consumption of ore fillers is reduced. The invention has the advantages of less investment, low operation cost, wide resource, sufficient reaction, good treatment effect, compact structure and convenient management.
Owner:辽宁三和环境工程有限公司

Satellite remote sensing reflectivity product data residual error correction method

The invention provides a satellite remote sensing reflectivity product data residual error correction method so as to quickly and effectively remove the remote sensing reflectivity product data residual error and improve the data precision of an ocean water color satellite product. A remote sensing reflectivity data residual spectrum relation reconstruction method is provided, and remote sensing reflectivity data residual spectrum characteristics are analyzed more simply and conveniently; in combination with a neural network technology, a method for extracting a spectrum slope coefficient of a residual error of remote sensing reflectivity data from satellite remote sensing reflectivity information is provided, and spatial and temporal variation characteristics of residual spectrum characteristics of the remote sensing reflectivity data of a satellite image can be described more finely; and the method is used for ocean water body remote sensing reflectivity product data residual error correction, remote sensing reflectivity products with more reasonable numerical values and more stable and reliable space-time distribution can be obtained, and production of high-precision water color products is supported.
Owner:陕西九州遥感信息技术有限公司 +1

A method for preventing core thermal power from exceeding limit value in nuclear power plant

The invention discloses a method for preventing thermal power of a reactor core from exceeding a limiting value in a nuclear power plant. The method comprises the following steps: acquiring a measured value of high pressure cylinder inlet pressure in a steam turbine, and performing proportional-integral calculation on the measured value of high pressure cylinder inlet pressure and a constant value of the high pressure cylinder inlet pressure in the steam turbine; and acting the proportional-integral calculation result and a constant steam flow value on a power control loop, and controlling the thermal power of the reactor core not to exceed the limiting value by controlling the opening of a high-pressure cylinder valve by virtue of a steam turbine adjustment system according to the proportional-integral calculation result and the constant steam flow value. For a long time, the problem that the thermal power of the reactor core exceeds the limiting value cannot be effectively solved, so that potential hazards of the reactor core easily occur under instantaneous conditions. The constant value of the high pressure cylinder inlet pressure and the constant steam flow value are reasonably set, so that the thermal power of the reactor core is effectively and automatically controlled without exceeding the limiting value by controlling the opening of the high-pressure cylinder valve by virtue of the steam turbine adjustment system according to any one constant value of the constant value of the high pressure cylinder inlet pressure and the constant steam flow value, and hazards of the reactor core and the nuclear safety problem caused by that the thermal power of the reactor core exceeds the limiting value are solved.
Owner:CHINA GENERAL NUCLEAR POWER CORP +1

High Voltage Generator Based on MOS Tube Series Discharge

ActiveCN111614258BEasy dischargeOvercome the disadvantages of resistive step-downElectrical measurement instrument detailsDc-dc conversionCapacitanceVoltage generator
The invention discloses a high-voltage generator based on the series discharge of MOS tubes, which belongs to the technical field of electronics and high-voltage measurement, and the technical problem to be solved is how to overcome the disadvantages of traditional resistance step-down. Including: MOS tube series discharge circuit, which includes N voltage equalizing resistors and N series MOS tubes, a capacitor C is connected in parallel between the gate and source of each MOS tube, and the source and drain of each MOS tube The voltage limiting protection element MOV is connected in parallel between; the first end of the booster is electrically connected to the source of TN and connected to the output A, and the second end is electrically connected to the gate of T1; the first end of the current limiting resistor R is connected to the T1 The drain is electrically connected, and the second end is connected to the output B; the first end of the voltage stabilizing element W is electrically connected to the gate of T1; the first end of the anti-interference capacitor C1 is electrically connected to the gate of T1, and the second end is connected to the voltage regulator A second end of element W is electrically connected and connected to output B.
Owner:任守华

Ozonation process and equipment for oil-containing alkali wastewater

The invention relates to a process for treating alkaline waste water with oil by using ozone, which comprises the steps: the industrial alkaline waste water with the oil and industrial acid water is taken as material and neutralized; the flow is calculated by PLC through a mathematical model and the flow calculation is accurate; the air flotation is used to carry out pre-treatment and the water after the pre-oxidization is discharged into an ozone pool; the ozonation gas is exposed in the ozone pool and the strong oxidizability of the ozone is used for resolving the oil in the water; then, the oil is treated by the depth treatment from a contact oxidation tank, thus reducing the pollutants discharge in the water and meeting the requirements of the water discharge. Index of the discharge water: the oil is equal or less than 5mg / l, the COD is equal or less than 70mg / l, the SS is equal to or less than 10mg / l; waste alkali neutralization is calculated through PLC by mathematical model andthe flow calculation is accurate; the oil is removed by the ozone, thus reducing consumption of the system; the contact oxidization tank is used as a depth treatment system, thus reducing the consumption of ore filler and being able to start and stop randomly; the system has high intellectualization and can be intervened manually based on the experience. The invention has advantages of low investment, low operation cost, wide resources, complete reaction, favorable treatment effect, compact structure and convenient management.
Owner:辽宁三和环境工程有限公司
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