102 results about "Fault Simulator" patented technology

A system for producing a simulated ground fault when arcing is present in an electrical circuit includes a sensor which monitors the electrical circuit. An arcing fault detection circuit determines whether an arcing fault is present in response to the sensor and produces a trip signal in response to a determination that an arcing fault is present in the electrical circuit. A ground fault simulator circuit produces a simulated ground fault in response to the trip signal.

The invention discloses an embedded real-time emulation and fault simulation system based on multiple data buses, comprising upper computer simulation management software and an embedded real-time emulation and fault simulation device. The upper computer simulation management software guides the user to perform emulation configuration and fault setting aiming at a fault-tolerant control system to be tested through a human-computer interface, and generates fault emulation data of multiple redundancy equipment. The embedded real-time emulation and fault simulation device outputs the fault emulation data in real-time and synchronously through the multiple data buses, simulates the fault of the multiple redundancy equipment and outputs the fault data stream. The upper computer and a lower computer communicate mutually through an Ethernet to achieve the downloading of the information configuration, the fault emulation data and the emulation control command of the upper computer, and the uploading of the working condition of the lower computer. The invention overcomes the defects of poor universality and lower synchronous precision of the traditional multiple equipment fault simulation device based on the emulation, and is suitable for the test and the verification of the different redundancy fault-tolerant designs of the complex spacecraft system with numerous equipment and frequent data exchange.

The invention relates to a simulation training system of a 10KV typical customer distribution room, which comprises a background computer, a high-voltage unit and a low-voltage unit. The high-voltage unit comprises a high-voltage programmable power supply, a high-voltage leading-out cabinet, a transformer cabinet and a PT cabinet, wherein the transformer cabinet and the PT cabinet are matched with and connected with the high-voltage unit, the lower-voltage unit comprises a low-voltage programmable power supply, a low-voltage leading-out cabinet, a reactive power compensation cabinet and a distribution cabinet, wherein the reactive power compensation cabinet and the distribution cabinet are matched with and connected with the low-voltage unit. The system further comprises a fault simulator circuit and a virtual-load load circuit corresponding to each distribution cabinet. Each circuit is connected with the background computer through a communication system. The fault settings which can be realized in the invention include the faults easily happening commonly so that learners can deeply know and analyze the faults, improve the skill levels of the learners for examining and solving the faults, improve the capability of dealing with emergency, and greatly prompt the post comprehensive professional levels and the field practical operation levels of relative workers, such as power utilization inspectors, distribution running maintainers, electric energy metering workers and the like.

The invention relates to an intelligent distributed feeder automation logic test system. According to the intelligent distributed feeder automation logic test system, the normal working or the fault state of a tested loop is simulated, a voltage signal and / or a current signal is generated by a fault simulator, a corresponding switching value signal is generated by a switch simulator and sent to a power distribution terminal in the tested loop through a communication interface as a test signal, the power distribution terminal feeds the switching state information formed according to the test signal back to the test system through the communication interface, and an ordered, accurate and efficient intelligent distributed feeder automation logic test for the power distribution terminal is realized by judging whether the switching state information meets processing logic during the normal working or the fault state of the tested loop.

The invention provides an electricity meter-reading check charging training device, comprising an upstream computer, a communication conversion control box, an electricity meter, a meter fault simulator, a current mutual inductor, a voltage mutual inductor and a program controlled power; wherein, the upstream computer communicates with the communication conversion control box which communicates with the electricity meter, the meter fault simulator and the program controlled power, a voltage output end of the program controlled power is connected with a voltage input end of the meter fault simulator by the voltage mutual inductor, a current output end of the program controlled power is connected with a current input end of the meter fault simulator by the current mutual inductor, and the electricity meter connects with voltage output end and current output end of the meter fault simulator. The device has the advantages of scientific design, stable performance, high safety and reliability, and strong practicability.

The invention discloses an intelligent distribution unit-area simulation device. The intelligent distribution unit-area simulation device comprises a high-voltage incoming line, a transformer, an analog voltage source, a metering mutual inductor, a measuring mutual inductor, fault simulators, virtual load analog current sources, outgoing line switches, intelligent ammeters, a reactive compensation controller and a rural power grid intelligent distribution transformer terminal. The high-voltage incoming line is connected to the metering mutual inductor through the transformer, the analog voltage source is connected to the metering mutual inductor, the metering mutual inductor is connected with the measuring mutual inductor through one fault simulator, one virtual load analog current source and another fault simulator in sequence, the intelligent ammeters and the measuring mutual inductor are connected with the metering mutual inductor, the metering mutual inductor is connected to the rural power grid intelligent distribution transformer terminal, the outgoing line switches are connected with the measuring mutual inductor, and the intelligent ammeters are connected through RS485. An intelligent distribution unit-area measures electric power operation data of the distribution transformer, carries out dynamic reactive power compensation, eliminates harmonic distortion, deals with asymmetry of phase voltages and eliminates voltage fluctuation and flickering, so that power supply reliability and electric energy quality are improved.

The invention discloses a low-voltage transformer area simulation practical training device for a rural network low-voltage distribution box. The simulation practical training device comprises a simulation high-voltage inlet wire, a simulation transformer, a simulation low-voltage power source inlet wire, the rural network intelligent distribution box, a simulation low-voltage outlet wire, a low-voltage simulation user, a simulation loading power source, a fault simulator, a master station communication server and a master station system. The simulation practical training device is divided into two parts for simulating an indoor master station system part, a simulation loading system part and a transformer area and the low-voltage user on a pole, a simulation outdoor part simulates a 10kV high-voltage inlet wire in the mode that the wire enters above the pole, the high-voltage inlet wire simulates high-voltage inlet wire control through a falling type fuse protector, a real high-voltage wire and a real falling type fuse protector are adopted for the inlet wire, two simulation poles are arranged between two pieces of H-shaped steel, the simulation transformer is installed on the upper layer, the rural network intelligent distribution box is installed on the lower layer, and the simulation loading power source is placed in a room, and connected into the indoor rural network intelligent distribution box and a load of a low-voltage simulation user meter through cables. The simulation practical training device has the advantages of being high in reliability and stability.

The invention provides a simulator-based processor fault injection and tracking method, comprising the following steps: abstracting the processor into a simulator with simulation modules; simulating various faults in each simulation module of the simulator and performing Fault source and fault command marking; fault transmission tracking, identification of fault source and fault command. The simulator-based processor fault injection and tracking method of the present invention can track the fault triggering and transmission process, and extract the information of components and instructions that realize the fault, so as to conduct comprehensive analysis on the fault. The present invention also provides a simulator for implementing the aforementioned simulator-based processor fault injection and tracking method.

A method for providing interactive and iterative testing of integrated circuits including the receiving of a first failing region. The first failing region corresponds to one or more circuits on the integrated circuit. The method generates a set of adaptive algorithmic test patterns for the one or more circuits in response to the first failing region and to a logic model of the integrated circuit. Expected results for the test patterns are determined. The method includes applying the test patterns to the first failing region on the integrated circuit resulting in actual results for the test patterns. The expected results to the actual results are compared. The method also transmits mismatches between the expected results and the actual results to a fault simulator. The method includes receiving a second failing region from the fault simulator, the second failing region created in response to the mismatches and the logic model, and the second failing region corresponding to a subset of the one or more circuits on the integrated circuit.

The invention discloses a feeder automation detection and simulation system. The feeder automation detection and simulation system comprises a feeder automation control unit, fault simulators, a plurality of GPS modules and a plurality of simulation switches. The feeder automation control unit is used for obtaining a protection motion scheme of a circuit where the feeder automation control unit is located according to sampling data. The fault simulators are respectively connected with the feeder automation control unit and used for simulating different types of transformer substation faults. The GPS modules are correspondingly connected with the fault simulators one to one and used for conducting time synchronization on the GPS modules and a satellite clock so as to ensure that all the fault simulators simultaneously simulate faults. The simulation switches are connected in series to form a network and send position signals to the fault simulators. The feeder automation detection and simulation system can simulate various types of faults and is convenient to carry and easy to install and operate.

The invention provides a distribution room safety simulation training system, which comprises a trainer, student machines, high voltage units, low voltage units, transformer units, a program-controlled simulation load source group and a fault simulator unit, wherein the program-controlled simulation load source group comprises a plurality of program-controlled simulation load sources; the voltage output of the program-controlled simulation load sources is correspondingly connected with secondary circuit lead-in ends in each cabinet of the high voltage units, and each group of current output of the program-controlled simulation load sources is correspondingly connected with secondary output in each cabinet of the high voltage units by current transformers; the voltage output of the program-controlled simulation load sources is connected with the secondary circuit lead-in ends of corresponding low voltage lead-out cabinets, and each group of current output of the program-controlled simulation load sources is correspondingly connected with the secondary output of each group of current transformer in each cabinet of the low voltage units; the fault simulator circuit, the program-controlled simulation load source group and a simulation screen unit are connected with communication interfaces of the trainer by a communication line; and the student machines are connected with the trainer through a network. The system provided by the invention introduces safe voltages and can ensure the safe operations of students.

The invention discloses a cable fault simulator and a cable fault simulation system. The cable fault simulator comprises a line concentration plate (1), cables and discharge balls (3), a plurality of connecting terminals (2) are arranged on the line concentration plate (1), each cable is connected between a first terminal and a second terminal of the corresponding connecting terminal, one end of each discharge ball (3) is connected with the corresponding first terminal or the corresponding second terminal, and the other end of the discharge ball (3) is grounded. By the aid of the cable fault simulator, workers can master a cable fault detection method more quickly and accurately. Simultaneously, the cable fault simulator is cheap in manufacturing price, simple and convenient in use and accurate in positioning.

The invention relates to the field of computer simulation technology and discloses a fault injection method and system for simulating a fault characteristic in a reliable, safe and realistic manner. The method comprises the steps of constructing a fault simulator which is provided with a model replacement mode, a signal conditioning mode and a mixed mode including model replacement and signal conditioning; and performing fault injection according to a user-set fault injection mode. The method and system in the invention can be applied to simulate the fault injection of a high-speed train traction drive system, and the fault injection method based on signal conditioning, based on model replacement, or based on the mixed mode including model replacement and signal conditioning can be adopted according to actual needs to achieve realistic simulation various types of common faults in a traction drive control system; and the method and system in the invention provide a safe, reliable and realistic fault injection / simulation / emulation and test platform for the diagnosis of common faults in the traction drive control system, fault tolerance and other technology, and have strong applicability.

Embodiments of the present invention are directed to validating a rules-based diagnostic system for a network. Emulated data for use by the rules-based diagnostic system can be generated that includes a trouble ticket to emulate a problem associated at least one of Layer 1 and Layer 2 network services and includes network information associated with the problem. Responses from the rules-based diagnostic system can be received in response to the emulated data being processed by the rules-based diagnostic system. A log generated by the rules-based diagnostic system can be analyzed to determine rules implemented by the rules-based diagnostic system in response to the emulated data, thereby validating operation of the rules-based diagnostic system.

The invention relates to the technical field of motors, and discloses a simulation method and a system for magnetism loss fault of a permanent magnet synchronous motor, and a medium. The authenticityand validity of the magnetism loss fault simulation of the permanent magnet synchronous motor are improved, and a more real and reliable environment is provided for the magnetism loss fault simulationof the permanent magnet synchronous motor. The method comprises the following steps of: establishing a three-phase coordinate system of the permanent magnet synchronous motor under the condition of the magnetism loss fault; calculating a first synthesized voltage of the permanent magnet synchronous motor in the three- phase coordinate system; converting the first synthesized voltage into a secondsynthesized voltage under a two-phase rotating coordinate system; determining an internal constraint condition required for model construction based on the second synthesized voltage when the permanent magnet synchronous motor has the magnetism loss fault; establishing a torque equation, a rotor motion equation, and an internal voltage equation of the permanent magnet synchronous motor accordingto the internal constraint condition under the condition of the magnetism loss fault; and constructing a magnetism loss fault simulator according to the parameters construction of the affected permanent magnet synchronous motor, and using the magnetism loss fault simulator to perform fault simulation.

The invention relates to acquisition terminal simulation, in particular to a simulation system and method for an electricity consumption information acquisition terminal round control switch. The system comprises a virtual load power supply, a three-phase electric energy meter, an electricity consumption information acquisition terminal, 10kV high-voltage circuit breakers, low-voltage simulation switches, a fault simulator and a simulation control host. Under the premise that safety and reliability are guaranteed, consistency of a training site and a production site is achieved, fault working conditions are simulated during training and used for training front-line staff of enterprises to know fault phenomena of various electricity consumption information acquisition terminals, the fault analysis and fault removal ability is enhanced, fault removal experience is accumulated, and the operation and maintenance guarantee capability of a power enterprise electricity consumption information acquisition system is enhanced.

The invention relates to an LVRT test control device which comprises a parameter configuration unit, a control unit and an interface unit; the parameter configuration unit comprises a display screen and a parameter input unit; and the control unit comprises a test instruction input unit, the interface unit comprises a connecting device connected with a power grid fault simulator through signals, the display screen takes a power grid fault curve as the background, and the parameter input unit comprises a parameter input device and an input parameter display area correspondingly associated with the state section of the power grid fault curve. The device takes the power grid fault curve as the background on the display screen, associates input parameters with the state section of the power grid fault curve so that an operator can directly and quickly input the parameters, understand the relationship between the input parameters and the state section of the power grid fault curve and quickly master the operation and application of an LVRT test system of a wind power generator unit, and simultaneously is simple to operate and convenient to use.

The invention discloses an operational process and troubleshooting training system and method for a water-pumping and energy-storage machine set. The system comprises a local control unit (LCU), an engineer station, an operator station, an event recorder, an analog simulator and a fault simulator. By means of the operational process and troubleshooting training system and method for the water-pumping and energy-storage machine set, operation signals and fault signals of all systems of the water-pumping and energy-storage machine set can be simulated, and operation conditions of the machine set under the normal state and all fault states can be revealed completely. Frames displayed by a control system are abundant, and starting and stopping operational procedures of the machine set, machine set operation information, alarm information, dynamic operation frames of main equipment and other content can be displayed. Relative professional personnel can learn the machine set control procedure and the starting and stopping procedures through the system and know about the operation conditions of all the systems in the starting and stopping processes, and troubleshooting capabilities of the relative professional personnel can be cultivated through fault simulation.

The invention discloses an isolation disconnecting link electric operating mechanism training device, which comprises a background computer and a training cabinet, wherein the training cabinet is provided with a fault simulator, an isolation disconnecting link, an isolation disconnecting link operation mechanism and an isolation disconnecting link control loop connected with the training cabinet in a controlling manner, wherein the fault simulator comprises a group of fault setting relays and a relay control circuit connected with the fault setting relays in a controlling manner; the fault simulator is connected with the background computer through a communication line; and the contact of each fault simulator is respectively connected in a control branch circuit needing to simulate the fault in the isolation disconnecting link control loop in a series manner or a parallel manner. The isolation disconnecting link electric operating mechanism training device comprises the same circuit structure, logic relation and external presentation as a secondary control loop of a true electric operating mechanism isolation disconnecting link; and with the adoption of the isolation disconnecting link electric operating mechanism training device, a primary wire connection part does not exist, and the operation mechanism and a control loop and the like are remained, and the fault simulator which is in communication connection with the background computer is increased.

The invention provides a fault simulation method for a swing type infrared earth sensor. The method comprises the following steps: dividing function modules according to a real infrared earth sensor, carrying out modeling on normal operating process of each function module, analyzing results according to a fault mode on the basis of a normal operation model, superposing a non-linear function and corresponding switches, simulating a variety of fault performances and cascading the fault model of each function module so as to obtain a fault simulator for the whole swing type infrared earth sensor. Fault parameters can be input as needed so as to allow the fault simulator to simulate a variety of faults; the fault simulator can be used in a schematic design of a satellite controlling system, mathematical simulation and subsystem testing and can examine correctness of designing and realization of fault diagnosis and fault reconstruction of the satellite controlling system.

The invention discloses a training system for operation and maintenance of a power distribution network. The training system comprises a background computer, a switching station unit, an overhead lineunit, a ring main unit, a box transformer unit, a region transformer unit, programmable voltage sources, programmable current sources and a fault simulator, wherein the switching station unit is connected with the fault simulator and is further connected with the ring main unit and the region transformer unit through the overhead line unit, and the ring main unit is connected with the box transformer unit; the switching station unit, the overhead line unit, the ring main unit, the box transformer unit and the region transformer unit are connected with the programmable current sources; the switching station unit, the overhead line unit and the ring main unit are connected with the programmable voltage sources; the programmable voltage sources, the programmable current sources and the faultsimulator are connected with the background computer. The training system is stable in performance, safe, reliable and high in practicability, and a student can learn the power distribution network system in a real environment.

The present invention discloses an airport oil depot work simulating and training system. The airport oil depot work simulating and training system comprises an airport oil depot technical process simulator, an airport oil depot work process simulator, an airport oil depot fault simulator, an airport oil depot automated work simulator and an airport oil depot automated work function simulator. The beneficial effects are that: firstly, the system can simulate the airport oil depot manual and automated work flows, train the manual operation and automated operation programs, and display the change cases of the technical processes and the process parameters visually by utilizing a water medium and by the transparent pipelines, tanks, instrument and pipeline accessories; secondly, the system can train the emergency processing capability of the students by setting various faults; finally, the system can record and reproduce the operation steps and parameter setting of the students by a computer system, is convenient to analyze the operation rationality of the students, and enables the operation efficiency to be improved.

The invention discloses a transformer intelligent simulation system. The transformer intelligent simulation system comprises an upper computer, a communication switching control module, a wireless data transceiver module, a fault simulator, a programmable power module, a testing line intelligent detection module, a test instrument module and a power module; wherein the upper computer is connected with the communication switching control module and the wireless data transceiver module respectively; the communication switching control module, the fault simulator and the programmable power module are connected with one another, and the communication switching control module controls the working states of the fault simulator and the programmable power module and meanwhile receives data uploaded by the fault simulator and the programmable power module; the wireless data transceiver module, the testing line intelligent detection module and the test instrument module are connected with one another, and data transmission can be performed between any two of the three modules; the power module is connected with and provides power for the other modules. The transformer intelligent simulation system is highly safe and reliable and achieves functional diversification.

The invention relates to the technical field of high voltage power cable fault simulating devices and especially a smart cable fault simulating device. The device includes a simulation high voltage cable, a fault simulator, an automatic transfer switch, a smart control center and a display. The smart control center controls the automatic transfer switch automatically and combines the simulation high voltage cable with the fault simulator so as to form different simulation waveforms and the different simulation waveforms are displayed by the display. By adopting the above structure, different cable faults can be set without setting a cable fault complex field, and cable fault locating training efficiency can be improved. Compared with the prior art, cable faults can be simulated accuratelyin a comprehensive manner. The device has advantages of setting convenience, simple operation and the like.

A method for diagnosing failures within an integrated circuit where known diagnostic fault simulators are unable to detect failure mechanisms which do not conform to known failure models. Basic boolean equations are used to describe the internal nodes forming the logic. These equations are then evaluated by way of a good machine simulation to determine which of the equations are (most) true for failing test patterns and (most) false for passing patterns. At the end of the good machine simulation a score is calculated to determine the number of times (or percentage) for which the equation is true for failing patterns and false for passing patterns. The method is particularly effective for finding shorted nets pairs in which the failure mechanism does not fall within known models. The method described is instrumental in greatly reducing the time required for manual analysis of failure mechanisms not conforming to known models.

The invention discloses a transformer intelligent simulation device. The transformer intelligent simulation device comprises an upper computer, a communication conversion control module, a wireless data transceiver module, a fault simulator, a programmable power supply module, a test line intelligent detection module, a test instrument module and a power module. The upper computer is connected with the communication conversion control module and the wireless data transceiver module respectively. The communication conversion control module, the fault simulator and the programmable power supply module are connected pairwise. The communication conversion control module controls the operative mode of the fault simulator and the operative mode of the programmable power supply module. Meanwhile, the communication conversion control module receives data uploaded by the fault simulator and the programmable power supply module. The wireless data transceiver module, the test line intelligent detection module and the test instrument module are connected pairwise, wherein data transmission can be conducted between any two of the wireless data transceiver module, the test line intelligent detection module and the test instrument module. The power module is connected with the other modules to supply power to the other modules. The transformer intelligent simulation device is high in safety performance, good in reliability, and intelligent, and has multiple functions.

A method for providing interactive and iterative testing of integrated circuits including the receiving of a first failing region. The first failing region corresponds to one or more circuits on the integrated circuit. The method generates a set of adaptive algorithmic test patterns for the one or more circuits in response to the first failing region and to a logic model of the integrated circuit. Expected results for the test patterns are determined. The method includes applying the test patterns to the first failing region on the integrated circuit resulting in actual results for the test patterns. The expected results to the actual results are compared. The method also transmits mismatches between the expected results and the actual results to a fault simulator. The method includes receiving a second failing region from the fault simulator, the second failing region created in response to the mismatches and the logic model, and the second failing region corresponding to a subset of the one or more circuits on the integrated circuit.

The present invention provides a fault simulation method of using a simulation intelligent electric energy meter, and belongs to the electric power system field. The fault simulation method of using the simulation intelligent electric energy meter comprises the steps of using a control host to select a target fault from a fault base, generating a fault instruction, sending the fault instruction to a power grid operation fault simulator, carrying out the fault processing on a sample voltage signal and a sample current signal by combining a power grid and the fault instruction, generating the fault voltage data and the fault current data, transmitting the fault voltage data and the fault current data to the simulation intelligent electric energy meter, and using the simulation intelligent electric energy meter to generate an intelligent power grid fault corresponding to the fault instruction according to the fault voltage data and the fault current data. According to the present invention, the power grid operation fault simulator and the simulation intelligent electric energy meter are used to simulate according to the fault instruction, at the same time, the control host also check the working states of the power grid operation fault simulator and the simulation intelligent electric energy meter, so that the trained personnel can be trained according to a correct fault simulation method, and accordingly, the skill levels of the trained personnel are improved.

The invention discloses a multi-purpose intelligent distribution network simulation system and a simulation method. The system comprises a power supply module, wherein the power supply module comprises an analog power grid, a photovoltaic power generation or wind power generation or energy storage unit; a switch device, wherein that switch device comprises a contact switch, a circuit break and a switch cabinet; an on-line monitoring module, wherein the on-line monitoring module comprises a fault simulator, a load element and a power monitoring device; The fault simulator comprises a ground fault simulator and an inter-phase short circuit fault simulator. The load element comprises a power cable, an overhead line, a motor, an inductor and a capacitor; The electric power monitoring device comprises an analog electric power monitoring device, a protection device and a power quality analysis device. The invention can directly provide the necessary criterion for the safety evaluation of theoperation of the power grid, and is suitable for the fault simulation, the protection verification and the self-healing reconstruction simulation of the intelligent distribution network.