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30 results about "Test generator" patented technology
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Method and system for evaluating reactive power supporting capability of network construction type wind turbine generator
ActiveCN119944715ASingle network parallel feeding arrangementsWind energy generationTerminal voltageElectric power system
The invention provides a method and a system for evaluating reactive power supporting capability of a network-forming type wind turbine generator, and relates to the technical field of power systems, and the method comprises the steps: obtaining active power outputted by a to-be-tested generator before disturbance; adding disturbance, adjusting the terminal voltage amplitude of the to-be-tested unit, and recovering after setting time; obtaining the steady-state reactive current amplitude variation of the to-be-tested unit after disturbance; and drawing a positive-sequence reactive current variable quantity requirement curve, and judging whether the steady-state reactive current-voltage characteristics of the to-be-tested unit meet requirements or not according to the position relation between the steady-state reactive current amplitude variable quantity of the to-be-tested unit after disturbance and the drawn positive-sequence reactive current variable quantity requirement curve. According to the method, the reactive power supporting capability of the network-forming type wind turbine generator can be accurately evaluated.
Owner:ELECTRIC POWER RESEARCH INSTITUTE OF STATE GRID JIBEI ELECTRIC POWER CO LTD +3
Network function configurator and test generator
A network function configuration and test generation framework are configured to generate a test script indicative of a configuration and test cases for verifying a virtual function implemented in a virtualized computing environment. A test input is received that encodes information for verifying a network function. The information includes identification of a test tool, a target testbed for testing the network function, and network information including parameters for network conditions to be operational during testing of the network function. A data parser translates and formats the test input. The formatted test input in input to a topology discoverer configured to identify a network topology of the testbed and which network functions deployed on the testbed are emulated and which network functions deployed on the testbed are real. A configuration generator generates a configuration file usable to configure applicable network functions and their functionalities.
Owner:MICROSOFT TECHNOLOGY LICENSING LLC
Network function configurator and test generator
A network function configuration and test generation framework are configured to generate a test script indicative of a configuration and test cases for verifying a virtual function implemented in a virtualized computing environment. A test input is received that encodes information for verifying a network function. The information includes identification of a test tool, a target testbed for testing the network function, and network information including parameters for network conditions to be operational during testing of the network function. A data parser translates and formats the test input. The formatted test input in input to a topology discoverer configured to identify a network topology of the testbed and which network functions deployed on the testbed are emulated and which network functions deployed on the testbed are real. A configuration generator generates a configuration file usable to configure applicable network functions and their functionalities.
Owner:MICROSOFT TECHNOLOGY LICENSING LLC
Built-in self-test for network on chip fabric
A system comprising a network-on-chip (NOC) fabric comprising a plurality of routes to communicate data between a plurality of agents; a plurality of built-in self-test (BIST) generators, wherein a BIST generator of the plurality of BIST generators is coupled between an agent of the plurality of agents and the NOC fabric and is to transmit at least one test pattern through the NOC fabric; and a plurality of BIST checkers, wherein a BIST checker of the plurality of BIST checkers is coupled between the agent of the plurality of agents and the NOC fabric and is to receive at least one test pattern through the NOC fabric from at least one of the plurality of BIST generators and to verify whether the at least one test pattern was transmitted correctly through the NOC fabric.
Owner:INTEL CORP
Image processing apparatus, image processing method, chip, and electronic device
The invention discloses an image processing device, an image processing method, a chip and electronic equipment, and belongs to the technical field of testing. The image processing device comprises a mode test generator and a first storage module, and the first storage module is connected with the mode test generator. The first storage module is used for storing image configuration information, and the image configuration information is used for describing information that the multiple frames of test images change in at least one aspect of color or position in the process of generating the multiple frames of test images; and the mode test generator is used for reading the image configuration information from the first storage module and generating multiple frames of test images according to the image configuration information. The test image can be controlled to change automatically through the image configuration information, and the test efficiency is improved.
Owner:BEIJING ESWIN COMPUTING TECH CO LTD
Built-in self-test repair method for ai accelerator chip pe matrix
The application discloses an AI accelerator chip PE matrix built-in self-test repair method, and relates to the technical field of AI accelerator chip circuit structure design. The built-in self-test method generates a scan test excitation by using a scan test generator, transmits and outputs a response through a configurable PE operation unit, judges whether the output response is correct or not by using an output response comparator, and judges the row and column addresses of a faulty PE unit by using a fault PE diagnostic device. The built-in self-repair method replaces and repairs the faulty PE unit by using an RPE redundant operation unit, and distributes the corresponding data bus to the RPE redundant operation unit according to the row and column addresses by activating the data bus and the weight data bus distributor. The application realizes the self-test of the PE operation unit and the self-repair of the faulty PE operation unit with a small additional circuit area ratio, thereby improving the yield of the AI accelerator chip and reducing the chip manufacturing cost.
Owner:GUANGDONG UNIV OF TECH
Unified platform of an artificial intelligence (AI) based test generator and test training system
A body of knowledge (BOK) in graphical structure is generated with a set of knowlets. The graphical BOK enables the platform to write up test questions with a RNN NLP writing system in runtime to support the adaptive recruitment process. In one embodiment, the system identifies a BOK with a graphical structure with a set of knowlets. Each knowlet represents a subset of knowledge within the BOK. The system identifies a set of intensional knowlets for the BOK, collects a set of extensional knowlets for the BOK, wherein an extensional knowlet represents the instantiation of an intensional knowlet, generates a BOK graph for the BOK with based on the set of intensional knowlets and the set of the extensional knowlets with each knowlet being a node of the BOK graph, wherein ontologies among knowlet nodes are generated, and generates a list of test questions based on the BOK graph.
Owner:LUCAS STAR HOLDING LTD
Generator test bench
ActiveCN222896243UMeasurement instrument housingDynamo-electric machine testingMotor testingElectric machinery
The utility model provides a generator test bench, comprising a test bench rack, a motor support arranged on the bench surface of the test bench rack, a test machine arranged on the motor support, a jacking element arranged on the bench surface of the test bench rack, a jacking plate arranged on a push rod of the jacking element, a support frame arranged on the jacking plate, and a support plate arranged above the support frame. The supporting plate is connected with the supporting frame through an up-down position adjusting mechanism, the top face of the supporting plate is horizontal, a sliding rail is arranged in the direction perpendicular to a testing machine spindle and slidably connected with a fixing plate, the supporting plate is provided with a fixing mechanism for fixing the position of the fixing plate, and a generator to be tested is fixed to the fixing plate. The structure is stable, the fixed plate can stably support the to-be-tested generator for a long time, and normal testing of the to-be-tested generator is guaranteed.
Owner:SHAOXING YANGTONG AUTO PARTS CO LTD
System and method for automated test case generation using a hybrid artificial intelligence model
A system is provided for automated test case generation using a hybrid artificial intelligence model. In particular, the system may comprise an automated test generator (“ATG”) that may automatically generate test cases or scenarios using one or more artificial intelligence (“AI”) models. In this regard, a user may input a high level test scenario into the ATG. Subsequently, the ATG may use a hybrid model (e.g., a model combining multiple transformer models) to generate complex and comprehensive test cases based on the user input. In some embodiments, the ATG may use an AI accelerator processing unit to increase the speed of the test case generation and refinement processes. In this way, the system provides an expedient, efficient way to generate complex test cases for software testing applications.
Owner:BANK OF AMERICA CORP
Automatic function safety testing device and method
The invention provides an automatic function safety testing device and method, and relates to the technical field of automobile function safety testing. The automatic function safety testing device comprises a main control module; the use case generation and strategy control module comprises an orthogonal test generator and a grade self-adaptive controller, and the orthogonal test generator carries out orthogonalization processing according to the input parameters obtained by the main control module and obtains orthogonal use case data; the level self-adaptive controller obtains strategy configuration data according to the orthogonal use case data and strategy library parameters obtained by the equipment to be tested; the test execution and interface module is used for obtaining fault injection data according to the strategy configuration data and injecting the fault injection data into the to-be-tested equipment; and the formalized verification module obtains formalized verification data according to the test output data obtained by the main control module, and the main control module obtains a function security test result according to the formalized verification data. The automatic function safety testing device can achieve the technical effect of reducing the risk of missing detection.
Owner:CHONGQING JINKANG NEW ENERGY VEHICLE CO LTD
Electrostatic discharge test generator loop cable supporting equipment
PendingCN120601322ATesting dielectric strengthElectrical apparatusUniversal jointClassical mechanics
The invention discloses an electrostatic discharge test generator loop cable supporting device which comprises a fixing support, a fixing base is installed at the top end of the fixing support, an adjusting base is adjustably and rotatably installed on the fixing base, a bent pipe assembly is installed on the adjusting base, and the bent pipe assembly is provided with a hollow structure for a cable to penetrate through. According to the invention, an original loop cable is not damaged, the loop cable only needs to penetrate through the device from the bottom and penetrate out of the device from the top, the flexible structure of the device not only has any bending angle, but also has a supporting structure, and a layer of nylon woven material is wrapped outside the internal universal joint, so that the function of protecting the internal universal joint is realized; the influence of external dust and the like on the internal structure can be completely isolated, the test requirement is met, the bottom is of a screw reverse jacking structure, and the device can be rapidly installed under the condition that an experiment table is not modified to meet the test requirement.
Owner:SPECIAL EQUIP SAFETY SUPERVISION INSPECTION INST OF JIANGSU PROVINCE
Device for testing performance of generator
Owner:SHANGHAI FIORENTINI GAS EQUIP
An audio recompression anti-forensics method based on generative adversarial network
ActiveCN115762560BInternal combustion piston enginesSpeech analysisGenerative adversarial networkEngineering
The present invention discloses an audio recompression anti-forensics method based on a generative adversarial network. In the training stage, the training set is first used to perform a separate network training on the generator for 5 rounds, and then the training set is used to perform adversarial training on the generator and discriminator for at least 30 rounds. The adversarial training is stopped after the generator and discriminator are adversarially trained for at least 30 rounds. Finally, the generator model and the discriminator model are trained to obtain the generator model and the parameters of the generator model, and the adversarial training is stopped in advance if the classification probability representing the true and the classification probability representing the false output of the discriminator in the current round are close to each other during the adversarial training process. In the testing stage, any decompressed audio obtained by recompression and then decompression is given as the test audio. The test audio is then tested using the generator model, and the generator model outputs the anti-forensic audio corresponding to the test audio. The advantage is that it can well erase the traces of recompression while ensuring good audio perception quality.
Owner:BAYSHORE CONSULTING & SERVICES CO LTD
Broadband multi-modal electric power load precision regulation system and method
ActiveCN119051064BElectric power transfer ac networkSingle network parallel feeding arrangementsCapacitanceElectric power
The present application relates to a kind of broadband multi-modal electric power load precision regulating system and method, belong to generator and energy storage system test technical field.The method according to the system implements the following operation: based on power grid power supply, voltage is converted into alternating current by transformer, then alternating current is converted into adjustable direct current using fully controlled rectifier;Frequency of the tested generator is changed by adjusting the speed of drag motor through frequency converter driving drag motor;At the same time, the output voltage of the tested generator is controlled using excitation system;Load regulation is realized according to integrated multiple loads and static var compensator;Voltage and frequency on bus are monitored in real time through measurement and control system, and input proportion of each load is gradually adjusted according to test requirement;Voltage size and phase on alternating current side are adjusted using SVC, power factor and current size on branch line are controlled in real time;And excess electric energy is rectified into direct current and stored in battery pack and capacitor pack through energy feedback function of SVC.
Owner:CHONGQING SAFETY STANDARD TESTING RES INST CO LTD +1
Generator set device testing method and system and computer equipment
ActiveCN119986148AEarth resistance measurementsDynamo-electric machine testingElectrical resistance and conductanceSoil science
The invention relates to the technical field of device testing, in particular to a generator set device testing method and system and computer equipment, and the method comprises the steps: obtaining the conductivity of each unit region and a merging region; according to the conductivity difference between the adjacent unit areas, obtaining a current flow direction path between two current electrodes and a current direction approaching factor of each merging area in the three-stage method measurement; correcting and adjusting the current direction approaching factor to obtain a corrected current direction approaching factor; the non-uniformity of the soil is obtained according to the difference of the electric conductivity of all the merging areas; according to the correction current direction approaching factor of each merging area and the non-uniformity of soil, adjusting the calculated overall conductivity of the grounding area to obtain real grounding resistance; and the analysis test of the grounding device is completed through the real grounding resistance. According to the invention, the accuracy of grounding resistance measurement of the grounding device is improved.
Owner:XIAN THERMAL POWER RES INST CO LTD
Generator excitation difference adjustment coefficient test method, device, equipment and program product
The invention relates to a generator excitation difference adjustment coefficient test method, device, equipment and program product, and the method comprises the steps: obtaining the terminal voltage and reactive power of a test generator at a first reactive power, and the terminal voltage and reactive power of the test generator at a second reactive power, and keeping the voltage given value and active power of the test generator unchanged; and according to the generator terminal voltage and the reactive power at the first reactive power and the generator terminal voltage and the reactive power at the second reactive power, utilizing an excitation difference adjustment coefficient calculation formula to calculate an excitation difference adjustment coefficient of the test generator, if the excitation difference adjustment coefficient is consistent with a preset excitation difference adjustment coefficient, judging that the difference adjustment coefficient of the excitation regulator meets a use condition, and if the difference adjustment coefficient is consistent with the preset excitation difference adjustment coefficient, judging that the excitation regulator meets the use condition. Otherwise, judging that the difference adjustment coefficient of the excitation regulator does not meet the use condition. Therefore, the problem that test data have errors due to the fact that a large-scale generator cannot keep a zero-power working condition is solved, only the active power of a unit needs to be kept stable in the test process, the test data are accurate, and safe operation of the generator in the test process is guaranteed.
Owner:GUODIAN NANJING ELECTRIC POWER TEST RES CO LTD
Segmented adjustment and detection method based on low-voltage intelligent switch
The invention provides a segmented adjustment and detection method based on a low-voltage intelligent switch, and belongs to the technical field of low-voltage power distribution equipment.The segmented adjustment and detection method comprises a rack, a clamping assembly is fixedly connected to the left side of an inner cavity of the rack, and a residual current operated circuit breaker is clamped in an inner cavity of the clamping assembly; an electric push rod is fixedly connected to the position, located on one side of the residual current operated circuit breaker, of the top of the rack, a front-back adjusting assembly is fixedly connected to the top of the electric push rod, and fine adjustment assemblies are fixedly connected to the two ends of the front-back adjusting assembly; the front end of the other side of the top of the rack is fixedly connected with a short-circuit test generator, an ampere meter and a voltmeter. According to the invention, precise segmented adjustment of functions of residual current protection, overload protection, short circuit protection and the like can be realized, and through segmented adjustment, the residual current operated circuit breaker can accurately respond to a fault in a circuit, and the safety of equipment and personnel is protected to the greatest extent.
Owner:STATE GRID ANHUI ELECTRIC POWER CO LTD ANQING POWER SUPPLY COMPANY +2
Built-in self-test repair system for PE matrix of AI accelerator chip
The utility model discloses a built-in self-test repair system of an AI accelerator chip PE matrix, and relates to the technical field of AI accelerator chip circuit structure design. A scanning test generator, a configurable PE arithmetic unit, an output response comparator and a fault PE diagnostor in a built-in self-test circuit, an activation data bus and weight data bus distributor and an RPE redundancy arithmetic unit in a built-in self-repair circuit, and a test repair controller are combined, so that the self-test circuit and the fault PE diagnostor are built in the built-in self-test circuit. The self-test of the PE arithmetic unit and the self-repair of the failed PE arithmetic unit are realized with a small extra circuit area ratio, so that the yield of the AI accelerator chip is improved, and the manufacturing cost of the chip is reduced.
Owner:GUANGDONG UNIV OF TECH
Method for determining the inertia time constant of a generator set and device therefor
ActiveCN119224565BDesign optimisation/simulationElectric generator controlThird waveTerminal voltage
The application provides a method and device for determining an inertia time constant of a generator set. The method comprises: performing step disturbance on a terminal voltage of a to-be-tested generator based on a first inertia time constant and a first preset threshold, amplifying a synthesized mechanical power integral of a power system stabilizer by a first preset coefficient, and recording a first waveform diagram to obtain a first target value based on a first pole value of the first waveform diagram; updating the first inertia time constant based on a preset adjustment step and the first target value to obtain a second inertia time constant, and then determining a second waveform diagram and a second target value; correcting the second inertia time constant based on a preset adjustment step, the first target value and the second target value to obtain a corrected inertia time constant, and then determining a third waveform diagram and a third target value; and obtaining a target inertia time constant when an absolute value of the third target value is less than or equal to a second preset threshold. The method solves the problem of a large error of a unit inertia time constant in the prior art.
Owner:ELECTRIC POWER RES INST CHINA SOUTHERN POWER GRID CO LTD +1
No-load overvoltage protection device for generator
The utility model discloses a generator no-load overvoltage protection device, which comprises a test generator and a capacitor test seat, the capacitor test seat comprises a plurality of groups of capacitor connecting plates for capacitor test, and one side of each capacitor connecting plate is provided with an interface for parallel connection / series connection of capacitors, and relates to the technical field of engine test protection. According to the utility model, the capacitor testing seat comprises a plurality of capacitor connecting plates for capacitor testing, one side of each capacitor connecting plate is provided with an interface for capacitor parallel / series connection, and one end of the capacitor testing seat far away from the testing generator is electrically connected with the logic gate circuit. Therefore, before the test generator is connected with the logic gate circuit, capacitance setting protection can be carried out through the capacitance test seat, and the capacitance setting protection can change the size of the test capacitance through series connection / parallel connection, so that the logic gate circuit is effectively protected from being broken down by the voltage of the test generator, and the overall safety of the test circuit is protected.
Owner:WUHAN OLIDE ELECTRIC CO LTD
Novel positioning device for testing generator voltage regulator
The utility model relates to the generator voltage regulator test field, and discloses a novel generator voltage regulator test positioning device comprising a pedestal, the top of the pedestal is fixedly connected with a fixed column, the upper surface of the pedestal is fixedly connected with an electric push rod, and the output end of the electric push rod is fixedly connected with a push bench; the pushing table is slidably connected to the outer wall of the fixing column, a plurality of inclined tables are fixedly connected to the side wall of the pushing table, a plurality of pulleys are rotatably connected to the interior of each inclined table, a supporting table is fixedly connected to the top end of the fixing column, a plurality of connecting tables are rotatably connected to the side wall of the supporting table, and a square pipe is slidably connected to the interior of each connecting table; a clamping table is fixedly connected to the top of the square pipe, and the outer wall of the square pipe is fixedly connected to the interior of the inclined table. According to the utility model, through the cooperation of the structures such as the push table, the inclined table and the square tube, the device can be clamped from multiple angles, thereby avoiding the deviation of the device in the test calibration process, and guaranteeing the accuracy of the test result.
Owner:JIANGXI QINGHUA TAIHAO SANBO ELECTRICAL MACHINE
Method and device for detecting cycle life of chemical heat storage material
The invention discloses a method and device for detecting the cycle life of a chemical heat storage material, and the method comprises the steps: enabling inert gas after first temperature adjustment to serve as inlet gas to enter a heat storage material test generator, and enabling outlet gas after the reaction of the heat storage material test generator to be discharged after second temperature adjustment; when the difference between the performance index a of the gas after the first temperature adjustment and the performance index b of the gas after the second temperature adjustment is kept unchanged within a set time or does not exceed a set fluctuation range, a cold liquid medium is introduced into a heat storage material test generator, and a service life test is carried out; or when the difference between the performance index a of the gas after the first temperature adjustment and the performance index b of the gas after the second temperature adjustment reaches the fluctuation range within the set time, the hot liquid medium is introduced into the heat storage material test generator for the service life test. The temperature of the heat storage material service life test generator can be rapidly changed, and the test efficiency and accuracy are improved.
Owner:CHINA ENERGY INVESTMENT CORP LTD +1
A transportable airborne power detection and service shelter
The application discloses a movable aviation power supply detection and maintenance shelter, and belongs to the field of aviation power supply and electric appliance product testing. A driving device in a cabin body is used for driving a generator. An oil injection system in a cooling device supplies oil for a product oil circulation system, the product oil circulation system is used for product oil circulation, and a sliding oil cooling system is used for sliding oil cooling. A test tool is used for coupling and installing a tested generator and the driving device. An analog load is used as an analog device of generator load capacity. A dynamic balancing machine is used for dynamic balancing and calibration of a rotor of a repaired motor product. A motor product maintenance workbench is used for disassembly, inspection, component replacement and assembly of an aviation generator product. An electric appliance product maintenance workbench is used for disassembly, inspection, component replacement and assembly of an electric appliance product. A product detection unit is used for product detection and verification. The application effectively reduces the failure rate of field products, shortens the maintenance cycle, guarantees the aircraft attendance rate and improves the field service support capability.
Owner:SHAANXI AVIATION ELECTRICAL
A compiler test case priority ranking method based on text vector and convolutional neural network
The application provides a compiler test case priority sorting method based on a text vector and a convolutional neural network. In the training stage, the features of each line of training code are extracted and combined into a vector, multiple line vectors are merged into a matrix, and then the matrix is converted into a pixel image for convolutional neural network training. The training data includes code from different compiler versions that can reveal errors. In the scheduling stage, the same method is used to convert the code to be sorted into an image, which is input into the trained model to obtain the code sorting result. The application predicts the potential of the new test code to reveal errors, thereby determining the priority. The application uses a token-based line-level text vector generation method, which has a faster code feature extraction speed, lower hardware requirements, and does not rely on the internal information of the test code generated by the fuzz test generator, and is suitable for C language test codes of various sources and lengths.
Owner:NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
Development and implementation method of computer interlocking software based on formalized language
PendingCN121657983AProgramming languages/paradigmsCompiler constructionTest inputSoftware development
The invention discloses a formalized language-based computer interlocking software development implementation method, which comprises the following steps of: S1, writing a formalized specification by using a formalized language Z language, defining an abstract state of a system through a mode, defining an initial state, writing a Z mode for each operation, and outputting a Z protocol document; s2, performing formalized verification and theorem certification on the Z protocol document generated in the previous step; s3, if the verification is not passed, redesigning the Z protocol document, and if the verification is passed, refining the Z protocol document for multiple times; and S4, automatically generating a test case, test input and expected output covering all boundary conditions by using a Z auxiliary tool CZT in combination with a user-defined test generator according to the verified and refined Z protocol document. According to the method, the defects that ambiguity and ambiguity are caused by adopting a direct development method based on a natural language, strict logical reasoning and proving cannot be carried out, and automatic verification cannot be carried out can be overcome.
Owner:SHANGHAI ELECTRIC THALES TRANSPORTATION AUTOMATION SYST CO LTD
Electrostatic discharge test generator loop cable supporting device
ActiveCN224231813UTesting dielectric strengthMeasurement instrument housingUniversal jointConductive materials
The utility model discloses an electrostatic discharge test generator loop cable supporting device, which comprises a fixed support, a fixed seat and a flexible support, the fixed seat is arranged on the fixed support, the flexible support is arranged on the fixed seat, the flexible support is provided with a hollow structure for a cable to penetrate through, and the fixed seat is provided with a cable penetrating hole. According to the utility model, the original loop cable is not damaged, the loop cable only needs to penetrate through the device from the bottom and penetrate out of the device from the top, the flexible structure of the device not only has any bending angle, but also has a supporting structure, and the device is made of ABS / PC-GF, has good supporting performance and is made of a non-conductive material; and a layer of nylon woven material is wrapped outside the internal universal joint, so that the function of protecting the internal universal joint is realized, and the influence of external dust and the like on the internal structure can be completely isolated.
Owner:SPECIAL EQUIP SAFETY SUPERVISION INSPECTION INST OF JIANGSU PROVINCE
An iterative evolutionary evaluation method employing an automated and efficient test generator algorithm
This invention discloses an iterative evolutionary evaluation method using an automated and efficient test generator algorithm. The method generates test cases based on this algorithm, with the following specific steps: First, based on the test metrics of a multi-agent system, all relevant test parameters are selected from the system environment model and behavior model. Second, the value range of each test parameter is defined. Then, the relationships between parameters are divided, and parameter constraints are confirmed to resolve value conflicts. Finally, based on the determined parameters, values, and constraints, parameter grouping is completed, and test cases are generated using the AETG algorithm.
Owner:SHENZHEN YUNTA INFORMATION TECH CO LTD
Generator withstand voltage test system
ActiveCN223897599UTesting dielectric strengthCurrent/voltage measurementCapacitor voltageElectric capacity
The utility model relates to a generator withstand voltage test system, which comprises an electric console unit, and an electric voltage regulator unit, an excitation transformer unit, an adjustable reactor unit and a capacitive voltage divider unit which are connected with the electric console unit, the input side of the electric voltage regulator unit is connected with a power supply; the primary side of the excitation transformer unit is connected with the output side of the electric voltage regulator; the low-voltage side of the adjustable reactor unit is connected with the high-voltage head end of the secondary side of the excitation transformer unit, and the high-voltage side of the adjustable reactor unit is connected with the capacitive voltage divider unit and the tested generator; and the capacitive voltage divider unit is connected in parallel with the tested generator. An adjustable reactor series connection mode is adopted, and the inductance value of the reactor is smoothly and infinitely adjusted according to the capacitance of the tested generator, so that the tested generator resonates and generates high voltage under the power frequency of 50Hz, and the power supply capacity and the size and weight of test equipment are reduced.
Owner:GUANGZHOU YUENENG ELECTRIC POWER TECH DEV CO LTD
Automated test generation
An automated test generation system includes a processing system and a memory system in communication with the processing system. The memory system stores instructions of an automated test generator that when executed result in parsing a test input sheet to identify one or more inputs, outputs, and expressions that define software requirements in a logical form with respect to the inputs, accessing a data dictionary to determine limits of the inputs, applying test case generation rules to produce test cases to test whether a software configuration item under test meets the software requirements, and applying test script generation rules to produce test scripts that implement the test cases by setting values of the inputs to the software configuration item under test based on the limits and the expressions to verify the outputs.
Owner:HAMILTON SUNDSTRAND CORP
Power supply device and power supply method for movable aircraft engine test bed
The invention provides a power supply device and method for a movable aircraft engine test bed, and can be applied to the technical field of power supply circuits. The power supply device comprises a first power supply module used for supplying power to the movable aircraft engine test bed through a first power supply circuit; the second power supply module comprises an energy storage assembly, an energy storage branch circuit, a test generator and a transmission branch circuit, the first end of the energy storage branch circuit is connected with the energy storage assembly, the first end of the transmission branch circuit is connected with the test generator, and the second end of the energy storage branch circuit and the second end of the transmission branch circuit are connected with the movable engine test bed; the power supply module is used for supplying power to the movable engine test bed by the test generator through a second power supply circuit comprising a transmission branch circuit under the condition that the test generator serves as a power supply; and under the condition that the generated power of the test generator is greater than the load power of the movable aircraft engine test bed, the test generator supplies power to the energy storage assembly through a third power supply circuit comprising a transmission branch and an energy storage branch.
Owner:BEIJING AVIATION FEIFANG MACHINERY EQUIP FACTORY +1