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99 results about "Equivalent function" patented technology

Hardware neural network conversion method, computing device, compiling method and neural network software and hardware collaboration system

The invention provides a hardware neural network conversion method which converts a neural network application into a hardware neural network meeting the hardware constraint condition, a computing device, a compiling method and a neural network software and hardware collaboration system. The method comprises the steps that a neural network connection diagram corresponding to the neural network application is acquired; the neural network connection diagram is split into neural network basic units; each neural network basic unit is converted into a network which has the equivalent function with the neural network basic unit and is formed by connection of basic module virtual bodies of neural network hardware; and the obtained basic unit hardware networks are connected according to the splitting sequence so as to generate the parameter file of the hardware neural network. A brand-new neural network and quasi-brain computation software and hardware system is provided, and an intermediate compiling layer is additionally arranged between the neural network application and a neural network chip so that the problem of adaptation between the neural network application and the neural network application chip can be solved, and development of the application and the chip can also be decoupled.
Owner:TSINGHUA UNIV

Function-level just-in-time translation engine with multiple pass optimization

A JIT binary translator translates code at a function level of the source code rather than at an opcode level. The JIT binary translator of the invention grabs an entire x86 function out of the source stream, rather than an instruction, translates the whole function into an equivalent function of the target processor, and executes that function all at once before returning to the source stream, thereby reducing context switching. Also, since the JIT binary translator sees the entire source code function context at once the software emulator may optimize the code translation. For example, the JIT binary translator might decide to translate a sequence of x86 instructions into an efficient PPC equivalent sequence. Many such optimizations result in a tighter emulated binary.
Owner:MICROSOFT TECH LICENSING LLC

Document capture stand

A stand facilitates and supports the use of digital cameras including digital video cameras in performing an equivalent function to a scanner in recording digital images which may be downloaded to a computer. The stand incorporates means for automatically configuring the camera into a mode of operation for document image capture on placing said camera into said stand. Said stand is adjustable in height and includes hinge sections 201 to appropriately position said camera for use in capturing an image of a document.
Owner:HEWLETT PACKARD DEV CO LP

Compiler processing system for generating assembly program codes for a computer comprising a plurality of arithmetic units

Provided is a compiler processing system for generating assembly program codes from a source program for a computer comprising a plurality of arithmetic units, the system comprising: a front end; a machine-independent optimization portion; a code generating portion; and a machine-dependent optimization portion; wherein the machine-dependent optimization portion comprises: a non-instruction scheduling portion; and an instruction scheduling portion comprising: means for determining if an arithmetic unit is available for an inspected instruction at an execution clock concerned; means for determining if there is a substitutional instruction which performs the equivalent function as the inspected instruction if an arithmetic unit is not available for the inspected instruction; means for determining if an arithmetic unit is available at the execution clock for the substitutional instruction, if any; and means for changing the inspected instruction to the substitutional instruction if an arithmetic unit is available for the substitutional instruction.
Owner:NEC ELECTRONICS CORP

Methods and systems for converting a synchronous circuit fabric into an asynchronous dataflow circuit fabric

ActiveUS20080168407A1CAD circuit designProgram controlAsynchronous circuit designCircuit design
Methods and systems for converting synchronous circuit designs to asynchronous circuit designs, and particularly programmable asynchronous circuit designs. Provide is a systematic, workable and repeatable process for evaluating synchronous circuit designs, converting the wires, switches / connections and logic functions to equivalent-function asynchronous circuit designs and hence implementing a functionally equivalent asynchronous circuit with all the benefits thereof. Further provided are a process for systematically doing the conversion and hardware equivalents (in form or functional description) for the asynchronous components. Using the present invention, any synchronous circuit design can be converted to an asynchronous equivalent, typically with no change to the original design implementation.
Owner:ACHRONIX SEMICON CORP

IC card and authentication method in electronic ticket distribution system

Between an IC card (1) and a electronic ticket server (2), upon purchasing an electronic ticket a public key cryptosystem is employed for a mutual authentication to keep a strict security, and a shared secret between the electronic ticket and a ticket collecting machine is sent on a secure channel as well as the electronic ticket. Upon usage of the electronic ticket, the IC card (1) and the ticket collecting machine (6) mutually judge whether they carry out the mutual authentication by using a public key cryptosystem or a symmetric key cryptosystem. When they determine to use the symmetric key cryptosystem, they carry out the mutual authentication by using the shared secret exchanged beforehand. When they determine to use the public key cryptosystem, they carry out the mutual authentication by using the same method as that used upon purchasing the electronic ticket. This method of mutual authentication can dynamically switch cryptosystems for cryptographic communication between the IC cards or between the IC card and a tamper resistant device having an equivalent function to an IC card installed in related servers or the ticket collecting machine, based on their judgment of the types of bearers, the required degree of security and the required processing speed.
Owner:SAKAMURA KEN +2

Mimic switch, network device and system

The invention belongs to the field of network data exchange equipment, and particularly relates to a mimic switch, a network device and a system, and the mimic switch comprises a switch chip which isused as a data forwarding entity to complete regular forwarding of opposite-end data; a mimic scheduler which is responsible for uploading the message data to the heterogeneous control engine executorand issuing the message data to mimic scheduling of the exchange chip; and a plurality of heterogeneous control engine executors which are used for receiving messages sent by the mimic scheduler andcarrying out data processing and feedback through the heterogeneous equivalent function executors. According to the invention, a heterogeneous control engine and a scheduler are introduced into the control layer to realize dynamic heterogeneous redundancy of the control layer; aiming at unknown vulnerabilities, Trojans, rear doors and the like, seamless switching of a dynamic system is ensured, and the method has the advantages of redundancy, heterogeneity, dynamics, negative feedback characteristics, service jolting removal characteristics, safety mode division, endogenous safety characteristics, defense compatibility and the like, and has important guiding significance for development of network switching equipment.
Owner:PLA STRATEGIC SUPPORT FORCE INFORMATION ENG UNIV PLA SSF IEU

Broadband antennas

The fast switching multifunction antenna of the present invention is a variable length antenna that may be switched to provide the equivalent function of a broadband antenna. The variable length antenna quasi-continuously transmits or receives signals at a plurality of frequencies by changing the effective length of the antenna using a variety of switching mechanisms. The present invention may comprise a plurality of antenna segments, a plurality of selectively actuable switches for interconnecting the antenna segments, and a switching mechanism operably coupled to the plurality of selectively actuable switches for switching them at a switching rate that is greater than twice the highest frequency to be transmitted or received. The switching rate will be fast enough to allow the antenna to sample the highest frequency and all of the required lower frequencies within the desired frequency range without the loss of information at any frequency. However, the switching rate is slow enough to allow sampling of the frequency at each antenna length before the next antenna length is activated.
Owner:UNITED STATES OF AMERICA

Novel film conveying method for packing machine

InactiveCN101613000ASimple structureThe conveying distance can be long or shortConveyorsWrapping material feeding apparatusMechanical equipmentEngineering
The invention discloses a novel film conveying method for a packing machine, which has a simple, compact and reliable structure and changeable conveying distance and can be widely applied to packing mechanical equipment. The novel conveying method can greatly simplify the structure of the whole packing machine and reduce the size thereof, and is also applicable when the size and shape of formed bags on a film are changed, so the method has large flexibility. The packing machine using the novel film conveying method can be applied to the situation of packing requirement diversification, thereby greatly reducing the equipment cost under the condition of equivalent functions. The conveying machine consists of two conveying chains, two chain wheel shafts, four chain wheels, four opening and clamping wheels, and a series of clamps which are arranged on the chains at certain intervals. Each chain wheel shaft is provided with a pair of chain wheels and a pair of opening and clamping wheels, and each opening and clamping wheel is arranged beside the chain wheel. The conveying chains are arranged at two sides and parallel to the conveying direction. The novel film conveying method is applied in the field of packing machines, in particular applicable to the condition that the film self has a series of formed bags and loads articles.
Owner:美达新科技(深圳)有限公司

Method and apparatus to reduce internal circuit errors in a multi-bit delta-sigma modualtor

An N-bit delta-sigma modulator reduces circuit errors associated with an internal N-bit digital-to-analog converter by replacing the N-bit digital-to-analog converter with a digital feedback circuit comprising a ternary digital-to-analog converter and an (N−1)-bit digital-to-analog converter. The internal N-bit digital-to-analog converter is typically used to generate a global feedback signal that is provided to a first summation circuit. To provide an equivalent function but with better noise transfer characteristics, the digital feedback circuit generates two feedback signals. The ternary digital-to-analog converter is part of a first feedback path that generates a first feedback signal for the first summation circuit, and the (N−1)-bit digital-to-analog converter is part of a second feedback path that generates a second feedback signal for the first summation circuit or a subsequent summation circuit.
Owner:REALTEK SEMICON CORP

Methods and Systems for N-State Signal Processing with Binary Devices

Linear Feedback Shift Registers (LFSRs) based 2p state with p>2 or p≧2 scramblers, descramblers, sequence generators and sequence detectors in binary implementation are provided. An LFSR may apply devices implementing a binary XOR or EQUIVALENT function, a binary shift register and binary inverters and binary state generator, wherein at least an output of one shift register element in a first LFSR is connected to a device implementing a reversible binary logic function is a second LFSR. They may also apply 2p state inverters using binary combinational logic are applied. Memory based binary 2p state inverters are also applied. Non-LFSR based n-state scramblers and descramblers in binary logic are also provided. A method for simple correlation calculation is provided. Communication systems and data storage systems applying the provided LFSR devices are also disclosed.
Owner:TERNARYLOGIC

Computer system and management method for the computer system and program

Even when a configuration in which instances of plural kinds of storage management software having equivalent functions are arranged to cooperatively manage a large-scale storage system is adopted, to prevent occurrence of a management inoperability and configuration information inconsistency and enable the same management operation and information reference as those performed when all management target objects are managed by a single instance. In the present invention, a representative management computer serving as a representative among management computers is determined. The representative management computer collects, from storage apparatuses and host computers, information concerning the management target objects and configuration summary information including a relation type among the objects and determines, on the basis of the configuration summary information, management target objects which each of the management computers should take charge of.
Owner:HITACHI LTD

IC card and authentication method in electronic ticket distribution system

Between an IC card (1) and a electronic ticket server (2), upon purchasing an electronic ticket a public key cryptosystem is employed for a mutual authentication to keep a strict security, and a shared secret between the electronic ticket and a ticket collecting machine is sent on a secure channel as well as the electronic ticket. Upon usage of the electronic ticket, the IC card (1) and the ticket collecting machine (6) mutually judge whether they carry out the mutual authentication by using a public key cryptosystem or a symmetric key cryptosystem. When they determine to use the symmetric key cryptosystem, they carry out the mutual authentication by using the shared secret exchanged beforehand. When they determine to use the public key cryptosystem, they carry out the mutual authentication by using the same method as that used upon purchasing the electronic ticket. This method of mutual authentication can dynamically switch cryptosystems for cryptographic communication between the IC cards or between the IC card and a tamper resistant device having an equivalent function to an IC card installed in related servers or the ticket collecting machine, based on their judgment of the types of bearers, the required degree of security and the required processing speed.
Owner:SAKUMRA KEN +2

Apparatus and method for displaying menu in mobile device

Disclosed is a method and apparatus for displaying a menu in a mobile device. An object generating event is detected for at least one selected menu item icon of at least one menu displayed on a touch screen. When the object generating event is detected, an object is generated and displayed, which performs an equivalent function to that of the at least one selected menu item icon.
Owner:SAMSUNG ELECTRONICS CO LTD

Software/Hardware Device with Uncertain Service Function and Structural Characterization, and Scheduling Method for Thereof

The present invention discloses a software / hardware device with uncertain service function and structural characterization and a method for scheduling the same. The device comprises a policy generator, a scheduler and a plurality of heterogeneous functional equivalents with equivalent functions, wherein, the policy generator is configured for providing a scheduling policy for the heterogeneous functional equivalents to the scheduler; the scheduler is configured for receiving an external service request, determining heterogeneous functional equivalents that provide a service to the external service request according to the scheduling policy given by the policy generator, assigning the service request to the determined heterogeneous functional equivalents, and outputting a service response which has an uncertain relation with uncertain structural characterization according to a feedback and the scheduling policy given by the policy generator. Therefore, the service response provided to the service request has an uncertain correspondence relation with feedback results of the heterogeneous functional equivalents of the device, so that the effectiveness of detection or attack on an unknown loophole, trapdoor of the device is greatly lowered, and the protective ability of the software / hardware device is enhanced.
Owner:SHANGHAI REDNEURONS +1

Magnetic scrubber assembly and design method

A magnetic scrubber assembly and its design method for cleaning the wall-glass of an aquarium are provided. The center of gravity of the internal scrubbing component is designed underneath its the geometrically horizontal central axes. A product of length Lp from a center of gravity Pp of an internal scrubbing component to a lowest part and the center of gravity P of the internal scrubbing component is smaller than a product of a length Lf from equivalent function point Pf of buoyancy F such that the internal scrubbing component is received to its lowest part. This ensures that the internal scrubbing component can erect automatically after it is lied down. When the internal scrubbing component breaks away from the control of a hand-held scrubbing component, the internal scrubbing component can sink upright, and the magnetic scrubber assembly is restored to the normal operation condition.
Owner:SHENZHEN XING RISHENG INDAL

Hardware neural network conversion method, computing device, software-hardware cooperation system

The invention provides a hardware neural network conversion method which converts a neural network application into a hardware neural network meeting the hardware constraint condition, a computing device, a compiling method and a neural network software and hardware collaboration system. The method comprises the steps that a neural network connection diagram corresponding to the neural network application is acquired; the neural network connection diagram is split into neural network basic units; each neural network basic unit is converted into a network which has the equivalent function with the neural network basic unit and is formed by connection of basic module virtual bodies of neural network hardware; and the obtained basic unit hardware networks are connected according to the splitting sequence so as to generate the parameter file of the hardware neural network. A brand-new neural network and quasi-brain computation software and hardware system is provided, and an intermediate compiling layer is additionally arranged between the neural network application and a neural network chip so that the problem of adaptation between the neural network application and the neural network application chip can be solved, and development of the application and the chip can also be decoupled.
Owner:TSINGHUA UNIV

Methods and systems for converting a synchronous circuit fabric into an asynchronous dataflow circuit fabric

ActiveUS7614029B2CAD circuit designProgram controlAsynchronous circuit designCircuit design
Methods and systems for converting synchronous circuit designs to asynchronous circuit designs, and particularly programmable asynchronous circuit designs. Provide is a systematic, workable and repeatable process for evaluating synchronous circuit designs, converting the wires, switches / connections and logic functions to equivalent-function asynchronous circuit designs and hence implementing a functionally equivalent asynchronous circuit with all the benefits thereof. Further provided are a process for systematically doing the conversion and hardware equivalents (in form or functional description) for the asynchronous components. Using the present invention, any synchronous circuit design can be converted to an asynchronous equivalent, typically with no change to the original design implementation.
Owner:ACHRONIX SEMICON CORP

Custom function library for inverse query evaluation of messages

In an inverse query environment, exemplary embodiments describe a set of shortcut keys that can be used to augment common query functions making it easier for developers to write query expressions. Further, these shortcut keys can be used to more efficiently execute equivalent functionality of the common query expressions, without evaluating large query strings against the message. In addition, embodiments described herein allow for automatic versioning of query functions, allowing for more maintainability of query expression sets. For example, a custom query library is provided with information about standard query functions based on industry wisdom of those functions most commonly referenced and / or versioned. Developers can use abbreviated query function shortcut keys in executing equivalent functionality of the lengthier string values for common query functions. The custom query library can also be modified with up-to-date information as industry changes are needed, thereby automatically maintaining the query expressions.
Owner:MICROSOFT TECH LICENSING LLC

Method and apparatus for capturing the image of bound documents such as books using digital camera

InactiveUS8134759B2Facilitates fast and easy and convenient distortion-free image captureEasy to useMaterial analysis by optical meansPictoral communicationDigital videoDistortion free
There is disclosed an image capture apparatus that facilitates fast, easy and convenient image capture of the two apposing pages of hard to scan bound documents such as thick books. The image capture apparatus has special design features that conveniently and properly positions bound documents to enable capturing distortion-free images without damage to the binding. In one preferred embodiment the invention facilitates the use of a digital image capture module such as a digital camera or digital video camera in performing an equivalent function to a flatbed scanner in recording digital images. In another preferred embodiment the invention facilitates the use of a regular camera in recording photographic images of the bound document. In yet another preferred embodiment the invention facilitates the use of a flatbed scanner in recording digital images.
Owner:KUWAIT UNIV

Cephalosporin C acylase mutant as well as coding gene and application thereof

The invention relates to a cephalosporin C acylase mutant as well as a coding gene and the application thereof. An amino acid sequence is shown as SEQ ID NO. 4; or after one or more amino acids are replaced, deleted or added, the sequence forms an amino acid sequence having an equivalent function and derived from the SEQ ID NO.4. The cephalosporin C acylase mutant provided by the invention has the advantages as follows: in the enzymatic reaction process of converting CPC into 7-ACA by using the mutant, the conversion rate reaches 99% and the yield reaches 96%.
Owner:ANHUI BBCA GENETIC ENG TECH CO LTD

Method and apparatus for capturing the image of bound documents such as books using digital camera

InactiveUS20100123941A1Facilitates fast and easy and convenient distortion-free image captureEasy to useMaterial analysis by optical meansPictoral communicationDigital videoDistortion free
There is disclosed an image capture apparatus that facilitates fast, easy and convenient image capture of the two apposing pages of hard to scan bound documents such as thick books. The image capture apparatus has special design features that conveniently and properly positions bound documents to enable capturing distortion-free images without damage to the binding. In one preferred embodiment the invention facilitates the use of a digital image capture module such as a digital camera or digital video camera in performing an equivalent function to a flatbed scanner in recording digital images. In another preferred embodiment the invention facilitates the use of a regular camera in recording photographic images of the bound document. In yet another preferred embodiment the invention facilitates the use of a flatbed scanner in recording digital images.
Owner:KUWAIT UNIV

LED multi-pixel-point driving system

The invention discloses an LED multi-pixel-point driving system, and belongs to the technical field of LED illumination. The system comprises a power supply, a constant current driving circuit, a pixel point circuit, a plurality of switching circuits and a driving control circuit; the pixel point circuit consists of multiple LED lamps connected in series; each of the multiple switching circuits is connected to the two ends of one or more LED lamps in the pixel point circuit in parallel, and each switching circuit is also connected with the driving control circuit separately; the power supply is connected with the constant current driving circuit and the pixel point circuit in sequence, wherein each switching circuit comprises a switching MOS transistor or a switching triode or a switching device with the equivalent function; and the driving control circuit is a circuit for realizing open-circuit output of the collector of the switching triode or open-circuit output of the drain of the switching MOS transistor. The LED multi-pixel-point driving system is simple in structure and capable of greatly simplifying system scale and lowering production cost.
Owner:ZHEJIANG JINGRI LIGHTING TECH

Hybrid-system modeling and simulation platform and method based on HSTPN model

The invention discloses a hybrid-system modeling and simulation platform and method based on a HSTPN model. The hybrid-system modeling and simulation platform comprises a human-computer interaction module, a logic expression module, a simulation analysis module, a file storage module and an equivalent rule library. The platform can carry out modeling and simulation on a hybrid system with five hybrid characteristics of dispersing, continuation, delaying, random and decision at the same time, the hybrid characteristics are only defined in a five-type library, the modeling complexity can be reduced, the transitional moment theory is guaranteed, and the modeling expandability is improved; a hybrid state of the HSTPN model is jointly described through a library identification and the continuous state; the platform provides the equivalent function of the HSTPN model by establishing equivalent rules of a hybrid Petri net and a derivative model of the hybrid Petri net. The hybrid-system modeling and simulation platform and method can be applied to modeling and simulation of hybrid systems such as an information physical fusion system, a flexible manufacturing system, a logistic system and defense industry.
Owner:NORTHEASTERN UNIV

Mixing milling squeezing granulation units melt control valve

The invention relates to a mixing-and-pressing granulator unit. In a melt control valve of the mixing-and-pressing granulator unit, the valve body is equipped with a melt regulating valve passage and a start-up valve traveler passage, the two passages are intercrossed, the melt regulating valve positions a rotary valve core or a valve plate in the regulating valve passage, the start-up valve traveler is equipped with a molten material straight passage and a waste material bend passage, and the two passages can be respectively connected with the regulating valve passage. The mixing-and-pressing granulator unit scientifically designs the regulating valve passage of molten material and the bend passage of waste material, processes a melt regulating valve passage and a start-up valve traveler passage on shared valve body, and then the regulating valve is integrated with the start-up valve. Compared with conventional regulating valves and start-up valves having equivalent functions, the regulating valve and start-up valve of the mixing-and-pressing granulator unit have the advantages of compact structure, small accommodation area, low processing and manufacturing cost, convenient installment and maintenance, simple procedure control, economy of energy consumption and the like.
Owner:大连橡胶塑料机械有限公司

Antibody against staphylococcal enterotoxin B and application thereof

The invention discloses an antibody against staphylococcal enterotoxin B and application thereof. The heavy chain of the antibody against staphylococcal enterotoxin B has variable regions CDR1, CDR2 and CDR3 of which the amino acid sequences are shown in SEQ ID NO. 5, SEQ ID No. 6 and SEQ ID No. 7, or is composed of CDR variants with equivalent functions; and light chain of the antibody against staphylococcal enterotoxin B has variable regions CDR1, CDR2 and CDR3 of which the amino acid sequences are shown in SEQ ID NO. 9, SEQ ID No. 10 and SEQ ID No. 11, or is composed of CDR variants with equivalent functions. The antibody against staphylococcal enterotoxin B is capable of specifically binding with staphylococcal enterotoxin B or free enterotoxin B; and thus, the antibody can be used fortreating, preventing and diagnosing staphylococcus aureus infection. Therefore, the antibody against staphylococcal enterotoxin B will be an important research direction in the fields of "non-antibiotic" treatment of methicillin-resistant staphylococcus aureus infection and drug resistance development control.
Owner:ARMY MEDICAL UNIV

Method for restoring degraded image based on L0 convex approximation

The invention discloses a method for restoring a degraded image based on an L0 convex approximation. A new regular term is provided based on the sparse priori knowledge of an image; thus, the method can be used for quite well approximating to the L0 norm of an image gradient; moreover, the constraint on the L1 norm of an original image is increased; a half quadratic splitting method is adopted; meanwhile, the interactive iteration and the solving are carried out on formulas in a frequency domain at the same time; in a solving process, the validity of an approximately equivalent function is discussed and proved. By using the method for restoring the degraded image based on the L0 convex approximation, the extra wave filtration and plentiful iteration times are not needed; moreover, the convergence speed is quite quick; the method for restoring the degraded image based on the L0 convex approximation is applied to the restoration of the image; the processing time is short; the running speed of an algorithm is quick; moreover, a processing result is also better than that of an existing method.
Owner:杭州视熵科技有限公司

Generalized state space averaging modeling method for aviation 12-pulse inverter

The invention discloses a generalized state space averaging modeling method for an aviation 12-pulse inverter. The generalized state space averaging modeling method comprises the following steps: acquiring the virtual line voltage, the virtual line current and the switching function of the 12-pulse inverter of an airplane electric power system; acquiring generalized state space averaging analysis variables by taking the virtual line current and the virtual line voltage as analysis variables, and acquiring an equivalent function of the switching function; and acquiring a generalized state space averaging model of an aviation 12-pulse inverter circuit according to the generalized state space averaging analysis variables, the equivalent function of the switching function, and a generalized state space averaging theory. Taking not only invariant components but also high-order components into consideration, the generalized state space averaging modeling method is suitable for stability analysis of not only low disturbances of airplane electric power systems, but also high disturbances of the airplane electric power systems. Compared with a state space averaging model, the generalized state space averaging model has a lower deviation of about 3% decreased from 6%, and the accuracy is almost doubled.
Owner:TIANJIN UNIV

Polypeptide inhibitor for inhibiting ten corona viruses

The invention discloses a polypeptide inhibitor for inhibiting ten corona viruses, and belongs to the technical field of biological medicines. The polypeptide inhibitor comprises 1) an amino acid sequence as shown as SEQ ID No.1 (Sequence Identifier Number 1), or 2) a sequence which is obtained by replacement, addition and / or one or more amino deletion by the amino acid sequence as shown as SEQ ID No.1, has an equivalent function and is derived by the sequence as shown as SEQ ID No.1, or 3) a core sequence of the sequence as shown as SEQ ID No.1, wherein the core sequence is SEQ ID No.2. The polypeptide inhibitor has very high broad spectrum performance, and can simultaneously inhibit ten different corona viruses, therefore, outbreak of an infective respiratory disease caused by some unknown novel corona virus in some uncertain time point in future can be rapidly and timely coped with at the first time, and the defects that the current single therapeutic drug is high in side effect and a sequela is easily resulted are overcome.
Owner:WUHAN UNIV

PSS/E power system equivalent method based on engineering application

ActiveCN105279297ASolve processingSolve the shortcomings of reactive power compensation devicesSpecial data processing applicationsAc network circuit arrangementsWeighted average methodPower grid
The invention relates to a PSS / E power system equivalent method based on an engineering application. The method comprises orderly performed steady state equivalent and dynamic equivalent. The method comprises the following steps: firstly, optimizing an original equivalent function, and making a steady state equivalent result more in line with the parameter of an actual power grid and the need of an actual project; in the steady state equivalent, selecting a node needing to be reserved in the network according to a research emphasis; based on the steady state equivalent, performing dynamic data equivalent; firstly determining the type of an equivalent generator, calculating the electrical parameter of each equivalent generator through a weighted average method, and then performing short circuit current calculation to determine a rated capacity of the equivalent generator; selecting a generator control parameter, which has the largest contribution to the short circuit current in the network, as an initial control parameter of the equivalent generator; and finally, performing manual fine adjustment on the control parameter of the equivalent generator based on an empirical method, so that the equivalent simplification of the whole set of network data can be completed.
Owner:STATE GRID CORP OF CHINA +2
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