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291 results about "Closed loop testing" patented technology
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Drug pump systems and methods
Owner:SMITHS MEDICAL ASD INC
Drug pump systems and methods
A menu driven reprogrammable drug pump is provided with a memory, such as flash memory, a display, a keyboard, and a communications port to allow a generic pump to be programmed with a desired pump application (therapy) program and patient specific settings. Programming and data transfer with another pump or a computer to and from the patient pump is by the communications port that allows local and / or remote communications with the pump. Flash memory stores the pump application program during use. Patient safety is provided by a cassette identification system, an occlusion detection system, and a latch / lock detection system. Automated testing of the pump is by a closed loop testing system.
Owner:SMITHS MEDICAL ASD INC
Drug pump systems and methods
A menu driven reprogrammable drug pump is provided with a memory, such as flash memory, a display, a keyboard, and a communications port to allow a generic pump to be programmed with a desired pump application (therapy) program and patient specific settings. Programming and data transfer with another pump or a computer to and from the patient pump is by the communications port that allows local and / or remote communications with the pump. Flash memory stores the pump application program during use. Patient safety is provided by a cassette identification system, an occlusion detection system, and a latch / lock detection system. Automated testing of the pump is by a closed loop testing system.
Owner:SMITHS MEDICAL ASD INC
Robust process identification and auto-tuning control
InactiveUS6697767B2Accurate estimateImprove performanceAmplifier modifications to reduce noise influenceElectric testing/monitoringGuidelineControl system
This invention provides a novel process identification and control package for high performance. For process identification, a simple yet effective and robust identification method is presented using process step responses to give a continuous transfer function with time-delay without iteration. A new relay, called cascade relay, is devised to get more accurate and reliable points on the process frequency response. For controller tuning, the internal model principle is employed to design single-loop controller PID or high-order types with best achievable control performance. The process identification and control design parts can be easily integrated into control system auto-tuning package. Further, a general control scheme for disturbance rejection is given which can significantly improve disturbance rejection performance over conventional feedback systems with time delays. Practical issues such as noises, real-time implementation and tuning guidelines are also provided. The invention covers both open-loop and closed-loop testing, and single and multivariable cases.
Owner:NAT UNIV OF SINGAPORE
Drug pump systems and methods
InactiveUS20080132844A1Drug and medicationsFlexible member pumpsClosed loop testingOcclusion detection
Owner:SMITHS MEDICAL ASD INC
Digital simulation based method and system for testing relay protection function of intelligent substation
The invention discloses a method and a system for automatically testing the relay protection function of an intelligent substation. The simulation system of the entire substation is realized in the mode that a simulation host machine is used for controlling digital relay protection and testing devices, a testing environment is provided, closed-loop testing on intelligent equipment is performed, the intelligent equipment with any scale of the substation can be tested in the mode that the simulation host machine is connected with the digital relay protection and testing devices, when tested equipment is added and the existing simulation system cannot meet the testing scale, the relay protection and testing devices in cascade connection are added to meet the testing requirement for intelligent equipment with larger scale, and besides, testing for a plurality of intelligent equipment can be realized, and the application prospect is better.
Owner:STATE GRID JIANGSU ELECTRIC POWER CO ELECTRIC POWER RES INST +3
Experimental system and method for MMC (multilevel modular converter) flexible direct-current transmission control protection equipment
The invention discloses an experimental system for MMC (multilevel modular converter) flexible direct-current transmission control protection equipment. The experimental system comprises a real-time digital simulator, a valve-base control electronic device of a multilevel modular converter, and a control protection device of the multilevel modular converter. The real-time digital simulator is connected with the valve-base control electronic device through optical fiber. The real-time digital simulator is connected with the control protection device through optical fiber or a cable. The control protection device is connected with the valve-base control electronic device through optical fiber or a cable. The experimental system is used for closed-loop testing on control performance, protection configuration and functions of the MMC flexible direct-current transmission control protection equipment, and can also be used for function test on valve control equipment. When a system topology changes or primary system parameters are corrected, testing is conveniently achieved by correcting a simulation model. The invention further discloses an experimental method of the experimental system for MMC flexible direct-current transmission control protection equipment.
Owner:NR ELECTRIC CO LTD +2
Automatic embedded software block box testing system and method
InactiveCN103995777AImprove test efficiencyThe test result is accurateSoftware testing/debuggingTest efficiencyReal systems
The invention relates to the field of computers, and discloses an automatic embedded software block box testing system and method. The testing system comprises an upper computer and a lower computer. The upper computer is used for automatically generating a testing script and establishing a simulation model of a system cross-linked with a tested system, the simulation model and the tested system are connected through the lower computer, and after a testing order is received, the testing script corresponding to the testing order is called to the lower computer. The lower computer is used for testing the tested system according to the testing script and sending testing data of the tested system to the upper computer. The testing system can automatically generate the testing script, testing efficiency is improved, the tested system is brought into a real system environment, the tested system is connected with the system cross-linked with the tested system, the integral function testing is carried out on the tested system based on a closed loop testing method, and the testing result is real and accurate.
Owner:SHANGHAI KELIANG INFORMATION ENG
Digital protecting tester, automatic closed loop test system and method
InactiveCN101923126AImprove technical levelReduce workloadElectrical measurement instrument detailsElectrical testingNetwork connectionClosed loop
Owner:NORTH CHINA GRID +3
Method for automatically testing relay protection equipment
The invention provides a method for automatically testing relay protection equipment. The method comprises the steps of: generating a test input quantity, detecting an output quantity of an object to be tested, and monitoring an intermediate quantity of the object to be tested through a distributed simulation environment, and forming a complete process of a closed-loop test; storing a fixed value, a pressure plate, a message and other information of relay protection equipment to be tested through a manner of a database, and storing the test input quantity and the output quantity of the object to be tested during the testing process; testing input equipment and the object to be tested through network connection; and controlling test input through a manner of command, then receiving the feedback of the object to be tested, finally intelligently comparing with an expected result stored in the database, and storing a feedback result in the database. By adopting the method for automatically testing the relay protection equipment provided by the invention, external properties of the relay protection equipment can be automatically monitored, the reliability of testing of the relay protection equipment and the testing efficiency are improved, and the probability of finding of hidden defects is increased.
Owner:BEIJING SIFANG JIBAO AUTOMATION
Active externally coefficient potentiometer and scaling method of wideband synthetic aperture radar
The invention discloses an external scaler and calibrating method of new broad-band synthetic aperture radar, which is characterized by the following: modulating the signal of the received synthetic aperture radar through sine amplitude; making two sides of the Doppler signal of synthetic aperture radar of scaler generate symmetrical mirror-image spectrum; utilizing positional filter to extract the mirror-image spectrum; separating the synthetic aperture radar signal from ground clutter. The scaler contains receiving and transmitting antenna, RF mode and modulating mode. The invention realizes external scaling signal separated from ground clutter completely to form loop testing circuit with radar transceiver system, antenna, transmitting path and external scaler without influencing by ground clutter, which improves the precision of external scaler greatly under complex and high-ground clutter condition.
Owner:INST OF ELECTRONICS CHINESE ACAD OF SCI
Automatic testing method of embedded software
InactiveCN101739334ADescribe wellEfficient managementSoftware testing/debuggingControl signalClosed loop testing
The invention relates to an automatic testing method of embedded software, which is realized through the following steps of: editing and establishing a test case base; establishing a test flow framework in a flow chart editing interface; inserting various test cases into a test flow chart according to the requirement of a test task; converting the edited flow chart into a test sequence on a simulated test platform by utilizing a script generator; and driving an I / O interface and a communication interface on the simulated test platform, exciting the software to be tested and receiving a feedback control signal. The automatic testing method of the embedded software has the advantages that open-loop testing and closed-loop testing can be carried out; a peripheral environment simulation base and an interface module base with strong functions can be formed through continuously adding interface modules to reduce subsequent secondary development, so that resources are recycled.
Owner:SHANGHAI KELIANG INFORMATION ENG
System for evaluating disturbance rejection rate parasitical loop of strap down infrared seeker
ActiveCN103954179AEliminate the singularity problemAnalytical StabilityAmmunition testingClosed loop testingRejection rate
The invention discloses a system for evaluating the disturbance rejection rate parasitical loop of a strap down infrared seeker. The system comprises a target simulator, a three-axis rotary table, the seeker and an emulation computer, wherein the target simulator simulates the movement relation of a target; the strap down infrared seeker detects the infrared signal source of the target simulator, and outputs a missile-target LOS (Line of Sight) rate obtained after decoupling filtering to the emulation computer, the emulation computer calculates the attitude and position information of a missile according to a practical kinetic model of the missile and transmits the attitude angle of a missile body to the three-axis rotary table to simulate the movement of the missile body; the emulation computer figures out a theoretical missile-target LOS rate and transmits the theoretical missile-target LOS rate to the target simulator to simulate the movement of the missile-target to form an entire closed-loop testing system. In the whole process, the emulation computer stores test data for final disturbance rejection rate calculation. The system eliminates the problem of singular point in the traditional disturbance rejection rate testing method, and enables that the disturbance rejection rate test is more accurate and a testing system is closer to the practical combat mode of the missile.
Owner:BEIJING INSTITUTE OF TECHNOLOGYGY +1
Micro-mechanical resonant electrometer with ultra-high sensitivity
ActiveCN106645999AHigh sensitivityReduce the amplitudeElectrical measurementsBand-pass filterClosed loop
The invention, which belongs to the MEMS field, discloses a micro-mechanical resonant electrometer with ultra-high sensitivity. The method comprises a mechanical structure design method of an electrometer header and a testing circuit design method. Compared with the prior art using a movable resonator charge input polar plate, the mechanical structure design enables the conversion efficiency between the electrostatic force and the axial stress to be improved; and with a micro-mechanical lever, the electrostatic force increases to improve mechanical sensitivity. When an external charge is inputted, rigidity disturbance on a resonator I increases and thus the localization phenomenon of the mode becomes dramatic. Meanwhile, the two provided resonators with different structures employ differential detection structures; the differential amplification circuit is used for detecting the amplitudes of the resonators and eliminating feed-through signals, so that the signal to noise ratio of the detection signal can be improved. In terms of the testing circuit design, a closed-loop testing plane is employed. To be specific, a signal at a detection electrode passes through a trans-impedance amplifier, a subtracter, a band-pass filter and a comparator and then is loaded at an alternating-current drive electrode to form a closed loop; rectification and filtering are carried out on two paths of outputs of the subtracter and dividing is carried out to obtain a direct-current voltage signal reflecting an amplitude ratio of two resonators. With a closed-loop drive detection circuit, the amplitude and frequency noise of the resonator can be reduced.
Owner:NORTHWESTERN POLYTECHNICAL UNIV
Semi-physical real-time simulation system of airplane reverse thrust hydraulic unit
ActiveCN101544281AShorten the development and analysis cycleImprove design qualityCosmonautic condition simulationsElectric testing/monitoringJet aeroplaneSoftware emulation
The invention discloses a semi-physical real-time simulation system of an airplane reverse thrust hydraulic unit. A closed loop testing system mainly comprises a computer, a programmable logic controller (PLC) hardware platform, an input device, and a software simulation device arranged in the computer; submodels of a hydraulic system are built by utilizing a hydrokinetics and electronic control theory, and then each simulation submodel forms the software simulation device; the PLC hardware platform performs parameter control and logic control to the software simulation device according to a state signal of the input device, and the output quantity of the software simulation device is shown in the computer by a digital and cartoon mode and also used as a feedback signal to be fed back to the PLC hardware platform through a communication interface. The invention can test and analyze various parameters of the airplane reverse thrust hydraulic unit without preparing the hydraulic unit, thereby greatly shortening the developing and analyzing periods of the reverse thrust hydraulic unit, improving the design quality and reducing the test expense.
Owner:苏州同元软控信息技术有限公司
System for testing power quality monitoring device and testing method thereof
ActiveCN104569891AImprove intelligenceHigh degree of automationElectrical measurementsTest powerPower quality
The invention belongs to the technical field of full automatic detection of power equipment and particularly relates to a system for testing a power quality monitoring device and a testing method of the system. The system comprises a detecting host, a standard source and the power quality monitoring device. The detecting host is connected with the stand source through a GBIP bus in a communicating mode. The standard source is electrically connected with the power quality monitoring device through a test signal line. The power quality monitoring device and the detecting host form a closed loop communication control system through the Ethernet. According to the system and the testing method of the system, the accuracy of power quality indexes, a data model and communication protocols can be tested, the automatic system detection and fault recognition alarm functions of standard source overload judgment, power quality monitoring device wiring correctness, closed loop testing environment integrity and the like can be achieved, the intelligence and the automation degree of testing the power quality monitoring device are improved, and the work benefits of testing the power quality monitoring device are increased.
Owner:ELECTRIC POWER RES INST OF GUANGXI POWER GRID CO LTD
Intelligent transformer station relay protection closed loop test system
ActiveCN103713214AAdjust the test object arbitrarilyAdjust the size of the test arbitrarilyElectrical testingTransformerClosed loop
Owner:STATE GRID CORP OF CHINA +2
Closed loop test method and system of ground-electronic-unit lineside electronic unit (LEU)
InactiveCN103095384AGuaranteed working conditionClosed-loop test implementationTransmission monitoringFunctional testingClosed loop
The invention discloses a closed loop test method and a system of a ground-electronic-unit lineside electronic unit (LEU). A real LEU and analog devices are combined into the close loop test system to test functions of the LEU. The test method includes the following steps: firstly, original messages (variable) are transmitted to the LEU through an S port by using an analog device (a train control center), and the LEU conducts data programming language (DBPL) encoding to the messages after receiving the messages, secondly, the messages are transmitted to the analog device (an active transponder) through a C port, at last the analog device (the active transponder) decodes received DBPL codes and compares the DBPL codes with the original messages. Therefore, the purpose that closed-loop test functions of the LEU is achieved, and thus a function test of transparent message transmission of the LEU is realized, and normal working condition of the LEU is guaranteed.
Owner:BEIJING RAILWAY SIGNAL
In-the-loop simulation test system for electronic parking brake system
ActiveCN101819440ALong development cycleIncrease expensesElectric testing/monitoringClosed loop testingClosed loop
The invention discloses an in-the-loop simulation test system for an electronic parking brake system, which comprises a computer, a data acquisition card, a high-speed CAN card, a hardware interface circuit, a pressure sensor, an electronic parking brake system controller and an electronic parking brake actuating mechanism. Various kinds of information are input by the computer, test software simulates actual automotive parameters according to the input parameters, the information is sent to the electronic parking system controller through the high-speed CAN card and the data acquisition card, the electronic parking brake system controller controls the actions of the actuating mechanism, an indicator lamp and an alarm and feeds the actions back to the computer through an actuating mechanism test system and the data acquisition card, and thus, a closed-loop test system is formed. The in-the-loop simulation test system for the electronic parking brake system has the advantages that: the analog simulation efficiency is high; the adjustment period of the EPB operation environment is short, simple and low in cost; the program parameters can be changed at any time according to the different vehicle models; and the application range is wide; and the development cycle is short and the unnecessary resource waste is reduced.
Owner:WUHU BETHEL AUTOMOTIVE SAFETY SYST
Intelligent driving vehicle in-loop test method and test system
InactiveCN110441066AImprove test accuracyVehicle testingElectric testing/monitoringClosed loopClosed loop testing
The embodiment of the invention discloses an intelligent driving vehicle in-loop test method and a test system. The method includes the following steps that: a test server adjusts test scenario information in real time according to the received vehicle state information; the vehicle state information is collected by a dynamometer module in real time and sent to the test server; the dynamometer module generates a simulated road environment corresponding to the adjusted test scenario information, so that a tested vehicle runs in the simulated road environment according to the adjusted test scenario information; and the test server determines the performance of the tested vehicle according to the vehicle running parameters, wherein the vehicle running parameters are determined by each piece of vehicle state information and the test scenario information within the test period. According to the technical scheme provided by the embodiment of the invention, the test scenario information, thestate information of the tested vehicle and the simulated road environment can be correlated in real time, the in-loop full-scenario dynamic real-time closed-loop test of the vehicle can be realized,the in-loop test scenario is consistent with an actual road environment, and thus the test accuracy is improved.
Owner:CHINA FIRST AUTOMOBILE
System and method for testing secondary circuit on site in intelligent substation
InactiveCN106405293AComplete testImprove test efficiencyElectrical testingTest efficiencySmart substation
The invention relates to a system and a method for testing a secondary circuit on site in an intelligent substation. The system comprises an overhauling and testing center and at least one test terminal which is in communication connection with the overhauling and testing center, and is characterized in that the test terminal is close to equipment to be tested, and used for sending analog or digital signals to the equipment to be tested and acquiring outlet node information of the equipment to be tested; the overhauling and testing center is used for configuring test data of each test terminal, sending the test data to each test terminal and judging the correctness of the equipment to be tested according to test feedback data of the equipment to be tested and MMS (Manufacturing Message Specification) information. The test system can realize that the test personnel perform dosage on equipment to be tested, which are dispersively arranged in a switch factory, in a control room of the substation, whether protection response is correct or not is checked at a protection device end, and the correctness of station control level information on an MMS message monitoring device is analyzed, thereby forming closed-loop testing, and realizing a complete test for the secondary circuit of the intelligent substation. The system and the method provided by the invention improve the test efficiency and reduce the test cost.
Owner:XUJI GRP +5
Nuclear power station simulation instrument control system DCS transformation closed-loop verification system and method
ActiveCN107885097AQuality improvementCost controlSimulator controlElectric testing/monitoringProcess systemsComputer architecture
The invention relates to a nuclear power station simulation instrument control system DCS transformation closed-loop verification system and method. The system comprises a simulation server, an operation display terminal and a virtual DCS server which are connected through network communication. The operation display terminal receives the initial condition and verification operation information inputted by the user and transmits the initial condition and verification operation information to the simulation server and displays the simulation result of the simulation server and the DCS verification simulation result of the virtual DCS server. The simulation server simulates the nuclear power station system equipment state and physical parameters according to the initial condition and based on the full scope simulator process system simulation model and outputs the simulation data. The virtual DCS server receives and processes the simulation data and then returns a DCS operation instruction to the simulation server and outputs the DCS simulation result to the operation display terminal to be displayed. Nuclear power station simulation instrument control system DCS transformation closed-loop test verification can be realized so that the major potential problems of digital transformation can be discovered in advance, controllable upgrade implementation risk and controllable construction period can be realized and the requirements of safe and stable operation of the unit can be met.
Owner:CHINA GENERAL NUCLEAR POWER OPERATION +4
Satellite attitude orbit control software digital closed-loop test system and method
The invention provides a satellite attitude orbit control software digital closed-loop test system and a method. The system comprises an interface simulation end which is connected with an iSystem system, a remote measurement remote control end and a dynamics model end through a network interface and is used for carrying out interface simulation for carrying out data transmission, the iSystem system used for operating the attitude orbit control software, monitoring an operation state and collecting the data of an external interface, the remote measurement remote control end used for receiving an inputted remote control instruction, sending the remote control instruction to the attitude orbit control software and receiving and processing the remote measurement result data, and the dynamics model end used for receiving the control information outputted by the attitude orbit control software, accomplishing calculation of a satellite peripheral attitude orbit model and sending the data of an input part to the attitude orbit control software. According to the system, the interface simulation end forms the digital simulation operation environment and a flexible customization external interface and interacts with the peripheral dynamics model, and thereby white box test content effects can be realized through a black box test method.
Owner:SHANGHAI AEROSPACE COMP TECH INST
Rapid self-checking system and method of satellite comprehensive testing system
ActiveCN102724006AAdd communication functionTransmission monitoringRadio transmissionClosed loopClosed loop testing
The invention relates to a rapid self-checking system and method of a satellite comprehensive testing system. The rapid self-checking system of the satellite comprehensive testing system comprises a comprehensive testing system, a satellite simulator, a local area network, a star earth wired electric cable, a general control end and a testing server, wherein the comprehensive testing system charges and supplies power for the satellite simulator through the star earth wired electric cable, controls in a wired mode and measures the state quantity and simulation quantity; the satellite simulator simulates the satellite load, the wired control and the tested objects of the comprehensive testing system; the local area network is a medium and a carrier of a data communication network; the star earth wired electric cable is a medium and a carrier for checking the power supply, charging, wired control and measurement function of the comprehensive testing system by the satellite simulator; the general control end sends a network control order step by step to the satellite comprehensive testing system and the satellite simulator, receives the order response return, performs automatic closed loop judgment, and completes the self-checking flow; and the testing server distributes, processes, stores and afterwards retrieves and analyses various types of control data and testing data. According to the invention, the network communication function is realized, and an automatic closed loop testing technology is adopted for the general control end, thus the self-checking flow is executed automatically and the self-checking result is given.
Owner:SHANGHAI SATELLITE ENG INST
Fuel cell semi-physical simulation testing system based on VC and building method
InactiveCN103676668AIncrease reflectionFast operationSimulator controlClosed loop testingComputer module
The invention relates to a fuel cell semi-physical simulation testing system based on VC and a building method. The system comprises an industrial control computer, a 16-path analog-to-digital (A / D) collecting card, a 16-path digital-to-analogy (D / A) collecting card and a 32-path digital I / O board. A VC software development model is used for replacing dynamic operation conditions of a practical air supply system, a hydrogen supply system, a cooling water system and modules of a fuel cell stack. By means of the A / D collecting card, the D / A collecting card and the digital I / O board, relation between a fuel cell stack controller and a simulation model is built, and a whole fuel cell testing system is simulated. Model input and output parameters are transmitted to the fuel cell controller through the A / D collecting card, the D / A collecting card and digital I / O board, an actual controller, various signal conversion boards and the simulation model used for replacing a true fuel cell form a closed loop testing system.
Owner:WUHAN UNIV OF TECH
GPS (global positioning system) simulator and receiver closed-loop testing method and system
InactiveCN102608624AIdeal positioning resultSatellite radio beaconingClosed loop testingGps receiver
The invention discloses a GPS (global positioning system) simulator and receiver closed-loop testing system. A GPS simulator not only provides GPS radiofrequency signals, but also outputs synchronization pulse corresponding to the radiofrequency signals for a GPS receiver, and carrier phase information, pseudo code phase information and satellite position information which correspond to various GPS signals. Accordingly, the GPS receiver not only can process GPS radiofrequency information under control of the synchronization pulse, realizes traditional signal capturing tracking, performs pseudo-range measurement and almanac decoding and completes positioning resolving, but also can directly utilize the phase information and the satellite position which are provided by the simulator to realize positioning resolving. By the aid of two calculating processes, measurement precision of pseudo-range, namely pseudo code phase, or carrier phase, almanac error analysis and positioning resolving method merits of the GPS receiver can be compared and analyzed, or simulation precise of the GPS simulator is detected.
Owner:GUILIN UNIV OF ELECTRONIC TECH
Electric control unit test method and device
InactiveCN101266495ASo as not to damageShorten development timeElectric testing/monitoringControl signalClosed loop testing
The invention discloses an electric-controlled unit testing method and apparatus. A model loading and process amount monitoring unit is connected to a model run unit for transmitting the parameter model of the dynamic assembly system to the model run unit, the model run unit is circularly connected to an electric-controlled unit, the model run unit produces operating parameters and transmits them to the electric-controlled unit, the electric-controlled unit generate PWM control signals and transmits them back to the model run unit, a sensor parameter testing and capturing unit is connected with the electric-controlled unit for recording the operating parameter value and transmitting instruction of modifying operating parameter value to the model run unit, and an on-line proving unit is connected with the model run unit for modifying operating parameter value. Adopting the inventive technical scheme can combine the actual electric-controlled unit and the simulation model as a closed-loop testing system, which achieves the goal of testing the electric-controlled unit accurately and safely with high-efficiency and low cost.
Owner:BEIJING INSTITUTE OF TECHNOLOGYGY
Automatic closed-loop testing method for connecting-and-locking logic of substation bay level
ActiveCN105388370AImplement testAvoid testable drawbacksElectrical testingTest efficiencyLogical operations
The invention provides an automatic closed-loop testing method for a connecting-and-locking logic of a substation bay level. The automatic closed-loop testing method comprises the steps of loading a substation configuration description (SCD) model and a bay level connecting-and-locking logic role, extracting a semaphore which is related with a tested bay level connecting-and-locking logic operation and a reference that corresponds with a logical operation result; automatically generating a connecting-and-locking logic testing task sequence, and determining a testing-and-control device in a testing scene; wherein each testing task comprises a name and a description of primary equipment of the connecting-and-locking logic test, a related semaphore, a corresponding number, an index and a connecting-and-locking logic prediction result; constructing multiple scenes which supports automatic closed-loop testing of the connecting-and-locking logic, and acquiring the connecting-and-locking logical operation result in the testing scene; and evaluating the logical operation result. The automatic closed-loop testing method is suitable for in-substation local automatic closed-loop testing and remote scheduling automatic closed-loop testing, and furthermore has functions of preventing reconstruction and expansion of device which requires power-off operation, improving testing efficiency, saving time-wasting and labor-wasting working cost in manual testing and ensuring high correctness of an error locking preventing logic.
Owner:CHINA ELECTRIC POWER RES INST +2
Coordination control method of unit plant
ActiveCN103728946AImprove reliabilityHigh control reliabilityTotal factory controlProgramme total factory controlCurrent electricControl system
The invention provides a coordination control method of a unit plant. The coordination control method of the unit plant comprises the steps that an advanced coordination controller CMPC connected with a normal coordination controller CPID in a DCS in parallel is established in an upper computer; a part closed loop test is carried out on a coordination control system under the state that the normal coordination controller CPID runs normally, model identification is carried out on a closed loop system with the output signals of the advanced coordination controller CMPC as input and with the output signals of the coordination control system as output, and the advanced coordination controller CMPC is put into the coordination control system to carry out running to carry out coordination control over the unit plant together with the normal coordination controller CPID; zero setting is carried out on the output of the upper computer when communication faults or upper computer system faults occur. According to the technical scheme, the coordination control method of the unit plant is suitable for model prediction control over coordination control over current electric power industry situations, the advantage that DCS control is high in reliability is maintained, high quality of model prediction control is introduced, and the control reliability of the coordination control system is improved.
Owner:ELECTRIC POWER RES INST OF GUANGDONG POWER GRID +1
System and method for testing wind farm power control strategy
ActiveCN103605360AIncrease the probability of successful commissioningReduce hidden dangersElectric testing/monitoringFault toleranceClosed loop testing
The invention provides a system and method for testing a wind farm power control strategy. A wind farm power control strategy making module of the system comprises a network data receiving / transmitting module, a data analyzing module, a data-caching module, a data fault tolerance module, an active / reactive control module and a real-time data interaction module, wherein the network data receiving / transmitting module, the data analyzing module, the data-caching module, the data fault tolerance module, the active / reactive control module and the real-time data interaction module are connected in sequence. The output end of the data fault tolerance module is connected with the input end of the real-time data interaction module. Information interface is conducted between the wind farm power control strategy making module and a wind farm grid analog simulation module or an actual grid interface module through the network data receiving / transmitting module. According to the system and method for testing the wind farm power control strategy, wind farm operation information is received in real time, set power values of wind farm units and reactive-load compensation devices are sent to the corresponding wind turbine generator units and the corresponding reactive-load compensation devices in a wind farm at regular intervals according to the different power control strategies, finally a closed loop for testing the control performance of a wind farm active / reactive control system is formed, and the success rate of on-site putting into operation is improved.
Owner:STATE GRID CORP OF CHINA +2
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