173 results about "Power test" patented technology

The application discloses a kind of ship generator set reactive power testing device, method and computer program product, wherein the device includes: at least two adjustable reactors and control unit;The control unit includes at least two switch units and busbar;The adjustable reactor is connected in parallel by one the switch unit and accesses the busbar;The control end of the control unit is connected to each the adjustable reactor;The control unit is used to control the on-off state of the switch unit, and the reactive power regulation of the adjustable reactor and the adjustable reactor in ship generator power test.The technical scheme provided by the embodiment of the application can avoid the problem of repeated wiring under different test power, adapt to the test requirements of multiple power changes, and improve the test efficiency.

The invention belongs to the technical field of quality detection, and provides a light high-reliability heat dissipation cold plate brazing forming process which comprises the steps that through multi-power testing, the surface temperature conditions of a heat dissipation cold plate finished product under different powers are obtained, a local overheating area is screened, the diameter of a welding spot air hole in the heat dissipation cold plate finished product is obtained, and a suspected welding spot defect area is obtained; carrying out coincidence analysis on the local overheating area and the suspected welding spot defect area to obtain a co-occurrence sub-area, carrying out synchronism analysis on the temperature and the pore diameter in the co-occurrence sub-area under overload power, judging whether relevance exists or not, if yes, obtaining a local temperature-welding spot defect relevance model, and if not, obtaining a local temperature-welding spot defect relevance model; and whether a high error exists in the current air hole diameter detection result of the heat dissipation cold plate finished product or not is judged based on the correlation model, if yes, correction is carried out, heat dissipation cold plate defect classification is carried out according to the air hole diameter of the heat dissipation cold plate finished product after correction, and the production quality and use reliability of the heat dissipation cold plate can be improved.

The application provides a performance test method, system, device and medium of a parallel converter, the parallel converter comprising a plurality of first devices and a plurality of second devices; each device comprises at least two modules; the module types comprise first modules and second modules; the method comprises: controlling the first modules to operate in a voltage source mode and the second modules to operate in an alternating current source mode; sending a power reference value instruction to realize parallel power test of each module; controlling the first devices to operate in the voltage source mode and the second devices to operate in the alternating current source mode; sending the power reference value instruction to realize parallel power test of the devices, and obtaining a performance test result of the parallel converter. By controlling part of the modules or devices in the parallel converter to be in the voltage source mode and simultaneously controlling another part of the modules or devices to be in the alternating current source mode, the power demand for external test power supply can be reduced.

The invention discloses a resistance test device for a depth-variable underwater vehicle, and the device is characterized in that a support frame is fixedly installed at the bottom of a hydrodynamic test trailer, and two groups of guide rail assemblies in the support frame are symmetrically arranged at the two sides of the bottom of the central axis of the hydrodynamic test trailer; two groups of sliding block connecting structures at the bottom end of the motion bearing platform are fixedly connected with the sliding blocks in the guide rails on the two sides, and the motion bearing platform and the supporting frame are locked and fixed; the lifting test mechanism penetrates through the middle part of the motion bearing platform through a lifting screw rod, and the lifting screw rod is matched with a hand wheel; the underwater vehicle model lifting device is fixedly connected with an underwater vehicle model through a model connecting assembly on the lower portion of the underwater vehicle model lifting device, and the model connecting assembly and the underwater vehicle model are vertically lifted or descended through the action of a hand wheel on a lifting lead screw, so that the underwater vehicle model is mounted or dismounted on the water surface. And ascending and descending of the underwater vehicle model in the test process.

The invention relates to the technical field of battery modeling, and discloses a battery multi-dimensional parameter identification method, a battery multi-dimensional parameter identification device and battery multi-dimensional parameter identification equipment for electric power energy storage. Determining to-be-identified parameters of the to-be-detected electric energy storage battery, wherein the to-be-identified parameters comprise an instant response parameter, a fast polarization parameter, a medium polarization parameter and a slow polarization parameter; performing a constant current mixed pulse power characteristic test on the to-be-tested electric energy storage battery to obtain a constant current test result, and obtaining an instant response parameter and a fast polarization parameter according to the constant current test result; performing constant-power mixed pulse power characteristic test on the to-be-tested electric energy storage battery to obtain a constant-power test result; and optimizing and calibrating a constant-current test result by combining the instantaneous response parameter, the fast polarization parameter and the constant-power test result to obtain an identification parameter of the to-be-tested electric energy storage battery. The battery parameters obtained through identification are closer to the operation condition of the electric energy storage battery, and distortion is reduced.

This application provides a method, electronic device, and storage medium for online power monitoring of photovoltaic modules. The method includes: constructing verification conditions; determining a valid test time based on pre-established verification conditions (string operating status verification, irradiance integer value verification, and irradiance stability verification); real-time power correction of the module based on the measured irradiance and cell temperature at the valid test time; determining the online power test value based on the corrected power value under the same integer irradiance reference value; when the integer irradiance reference value reaches a preset high irradiance threshold, correcting the online power test value to standard test conditions to obtain a comparable online power test value; determining the current control reference for the current test cycle based on its corresponding factory power correction value; and updating the dynamic iterative control reference based on the current control reference and historical control references to perform power anomaly monitoring. This application achieves accurate online testing and anomaly identification of photovoltaic module power.

The present disclosure provides an output power test system, belonging to the technical field of automobiles. In the present disclosure, the output power test system is used to test the low-voltage load output power of a vehicle to be tested, without the need for a large test site, and the output power test system only needs to occupy the site size of a test cabin, the floor area of the test cabin is only a little larger than that of a vehicle, and moreover, the rotary hub test bench, the data collector and the controller are not very complex devices, so the construction of the power test system is much simpler than that of a large test site, and the use of the power test system to test the low-voltage load output power of a vehicle is simpler and more convenient.

The invention relates to the technical field of power testing, and discloses a converter transformer bushing discharge analysis method, system and device based on multi-physics field data fusion. The invention aims to solve the technical problems that the traditional observation means cannot go deep into the discharge process and the internal mechanism is difficult to reveal. According to the method, a multi-physical field combined observation and analysis framework is constructed, and an instantaneous and irreversible complex physical discharge process is converted into a four-dimensional digital image which can be played back, analyzed and quantized. The core of the method is that a plurality of discrete and mature inversion reconstruction algorithms are integrated under a unified space-time reference for collaborative data processing for the first time. An omnibearing and high-fidelity digital analysis tool is provided for researching the high-voltage discharge physical process, and the depth and efficiency of discharge experiment research are remarkably improved.

The application discloses a lithium titanate battery power test method and belongs to the technical field of battery performance test. The method solves the problem that the existing battery power density test method cannot be applied to the continuous pulse power discharge working condition. The application comprises the following steps: based on the HPPC method, adjusting the pulse discharge test time to 18s, standing for 40s-5min, and subtracting the 18s discharge cutoff voltage from the voltage after standing; alternately charging or discharging the battery in the test, discharging for 10s, charging to the capacity consistent with that before discharging, recording the voltage, and calculating the power capacity; calculating the power change curve at different discharge times; the internal resistance obtained by the test presents a trend of first increasing and then decreasing with the increase of the discharge time, which is affected by the cell polarization and temperature rise; the JEVS method is used to obtain the maximum charging or discharging current; and the power verification of the final result is performed. The application is used for the battery power density test under the continuous pulse power discharge working condition.

The utility model discloses a charging function testing device which comprises a base, four corners of the bottom end of the base are fixedly connected with supporting ground feet, the front side of the upper end of the base is fixedly connected with an object placing table, the rear side of the upper end of the object placing table is provided with a first sliding groove, and the interior of the first sliding groove is rotatably connected with a first bidirectional screw rod. L-shaped side plates are arranged on the two sides of the first sliding groove, and a second sliding groove is formed in the middle of the upper end of the base. According to the utility model, the charging plug can be clamped through the arranged clamping assembly, and the position of the clamping assembly can be adjusted through the arranged lifting assembly and the arranged adjusting assembly, so that the charging plug can be aligned with the charging port, and therefore, the charging plug can be inserted into the charging port through the pushing assembly, and a charger can be inserted into a socket; power supply can be carried out through the arranged socket, and charging data can be detected through the arranged power tester and displayed on the operation panel.

The invention discloses an action power test method for an intermediate relay, which relates to the technical field of relay inspection, and comprises the following steps: collecting loop signals through a test port and an action feedback interface, and automatically judging the wiring compliance; receiving a direct current target test mode, an alternating current target test mode and an intermediate relay rated parameter instruction; according to the target test mode, the DC / AC switching module is controlled to switch, the function change-over switch is synchronously driven, the corresponding input and output switch is closed, the adjustable power supply is started, and AC / DC power supply interlocking control is executed; starting a voltage automatic adjusting strategy based on the rated parameters, gradually adjusting the output voltage and collecting voltage signals in real time; continuously collecting on-off signals, stopping voltage regulation after judging that the relay acts, and locking voltage and power signals at the moment of action; and calling an industrial standard parameter library for comparison, generating a comprehensive judgment result, and closing a corresponding power supply to complete the test. According to the method, automation and precision of the operation power test of the intermediate relay are realized, and the test efficiency and the result reliability are improved.

Methods, systems, and devices for wireless communications are described. A testing device may output an indication of multiple steering directions to a network entity. Multiple beamforming vectors corresponding to regions within a coverage angular region (CAR) of the network entity may be based on the multiple steering directions. For each region, a respective steering direction of the multiple steering directions may be determined from a respective test location selected from a set of test locations on a perimeter of a subregion within each region. The testing device may measure one or more effective isotropic radiated powers (EIRPs) of beams over an elevation or an azimuth angle associated with the multiple beamforming vectors. The testing device may verify that a cumulative or expected EIRP of the beams satisfies a EIRP envelope or mask associated with the elevation or the azimuth angle.

The invention relates to the technical field of power electronic testing, and particularly discloses a laboratory networked management control system for high-power power electronic testing. The system comprises an equipment room, a test room, a network communication management system, a centralized control platform and a state detection and self-inspection module. Wherein the equipment room is used for arranging high-power test equipment, and realizes physical isolation from testers through a ventilation structure and a sound insulation structure; the test room is used for arranging an operation table and low-power test equipment and is connected with the equipment room through a cable and a communication line; the network communication management system constructs a local area network to realize remote communication; the centralized control platform is used for uniformly controlling and scheduling various devices; and the state detection and self-inspection module is used for monitoring the running state of the equipment and realizing automatic cut-off of a fault branch. The system improves the test safety, the operation efficiency and the automatic management level, and is suitable for test platform construction of new energy, power conversion and energy storage systems.

This application belongs to the technical field of testing devices and discloses an air compressor shaft power testing device, including a housing and a detection motor fixed inside the housing and capable of intelligent drive. A main pulley is fixedly fitted onto the output end of the detection motor. An adjustable mounting bracket is provided on the top of the housing, and an air compressor is detachably connected to the top of the mounting bracket. A driven pulley is detachably connected to the drive shaft of the air compressor. The output end of the air compressor drive motor rotates via a belt connecting the main pulley and the driven pulley. In this application, a torque detection device is first connected to the driven pulley. Then, the detection motor drives the main pulley to rotate. Under the transmission of the belt and the driven pulley, the drive shaft of the air compressor rotates. Simultaneously, the torque detection device measures the torque generated when the driven pulley rotates and, based on the power calculation formula, can determine the operating power of the air compressor, thereby judging the air compressor's energy consumption level, energy-saving effect, and operating efficiency.

The utility model belongs to the field of high -power test equipment especially relates to a heat pipe radiator for test equipment, including heat conduction matrix, heat pipe, heat dissipation matrix, heat conduction matrix is connected with heat dissipation matrix, it is equipped with a plurality of through -hole in the middle heat conduction matrix, the fixed connection of heat pipe has on heat dissipation matrix, the evaporation section of heat pipe is close to heat conduction matrix, the fixed connection of a plurality of radiating fins has on heat dissipation matrix, and the condensation section of radiating fin is close to heat pipe. Advantage is: has high -efficient heat dissipation, good dustproof, space utilization high -efficient, the advantage that heat is conducted downward, can effectively solve the heat dissipation problem of high -power test power supply equipment under special working condition, improves the operating stability and life of equipment.

The invention discloses a multi-model driving motor adaptive test system, and relates to the field of driving motor test. The rack bearing module is welded by low-alloy steel plates, the bottom is fixed, and vertical guide rails and horizontal sliding rails are arranged; the self-adaptive positioning module comprises a three-dimensional adjusting mechanism, so that accurate positioning is realized; the intelligent clamping module adopts a circumferential clamping assembly and an axial jacking device, and a clamping motor is stably clamped through an arc-shaped clamping jaw and the jacking device; the power test module collects parameters such as torque and rotating speed, and supports switching of vector control and torque control modes; the automatic calibration module is provided with a laser tracker and a standard torque meter, so that the measurement precision is ensured; the data processing module adopts an industrial computer to analyze data and generate a chart; and the safety protection module is provided with a three-level protection mechanism to guarantee the test safety. The method is fast adaptive to multi-model motor testing, improves the efficiency and precision, guarantees the safety, is reliable in data, is suitable for various testing scenes, and optimizes the traditional testing technology.

This application discloses a solid-state microwave source output power testing device, relating to the field of electrical variable testing. The device includes a power supply module, a mechanical adjustment component, and a light-emitting indicator component. The power supply module supplies power to the solid-state microwave source; the mechanical adjustment component adjusts the output power of the solid-state microwave source; and the light-emitting indicator component detects the output power of the solid-state microwave source. This application uses a mechanical method to adjust the output power of the solid-state microwave source and employs electromagnetic field coupling + light emission to detect the output power. This enables intuitive qualitative detection of the solid-state microwave source output power, has a simple structure and low cost, and the mechanical adjustment component and the light-emitting indicator component have low requirements for the testing environment.

The application discloses a kind of analytical force test method, equipment and computer readable storage medium, the method includes collecting the line pair image obtained by the camera module to be measured to test mark plate shooting, wherein test mark plate contains at least one mark plate unit, at least one line pair is provided on each mark plate unit;Line pair image is preprocessed, to locate and extract the imaging feature area of all corresponding mark plate units in line pair image;Each line pair in imaging feature area is independently polynomial fitted respectively, and the brightness-pixel position fitting function corresponding to each line pair is obtained;According to the brightness-pixel position fitting function corresponding to each line pair, the brightness peak value and brightness trough value of line pair are extracted, and the analytical force numerical value corresponding to each line pair is calculated.The analytical force test method of the application can realize multi-direction analytical force test and accurate evaluation of detail clarity, which helps to improve line pair detection precision.

The invention relates to a manually-adjusted high-power broadband attenuation control device and method. A first adjusting unit provides discrete gears corresponding to different first attenuation values, and a second adjusting unit provides discrete gears corresponding to different second attenuation values. The processing module determines an attenuation value according to input information of the first adjusting unit and the second adjusting unit, calculates a target attenuation value, converts the target attenuation value into a 6-bit parallel binary control code, and outputs the 6-bit parallel binary control code to the program control attenuation module through a parallel interface. And each bit of the control code corresponds to a weighted attenuation bit, so that independent start and stop of the attenuation unit are realized. The method comprises the steps of detecting a pin level, determining an attenuation value, calculating a target value, generating a control code and outputting an instruction. And when the target attenuation value exceeds 63dB, forcibly outputting a maximum attenuation instruction. According to the scheme, the operation process is simplified through a two-stage adjustment framework, the response speed is improved through parallel direct drive control, the full-band signal attenuation stability is guaranteed through the metal shielding shell integrated design, and the high-power test device is suitable for a high-power test scene of the frequency band of 0.5-40 GHz.

The application discloses a kind of vehicle power battery power test method and system based on power MAP table, it is related to power battery power test technical field, comprising: according to the imported power MAP table, identify multiple temperature and SOC state test points in table, and determine the nature parameter of power test;Combining the selected set constant volume mode, the power of vehicle power battery to be measured is tested;Wherein, multiple temperature test points are tested in the order from high temperature to low temperature, and according to the difference of charge-discharge operation mode, multiple SOC state test points are tested in different order;Based on the data obtained by testing and power MAP table original data, the key data of each MAP test point, the capacity value under each temperature, the adjustment capacity value in each test step and the running capacity value are obtained.The application can effectively detect the power capability of power battery and its system, improve detection efficiency and precision.

The utility model provides a heat dissipation module power test fixture. The heat dissipation module power test fixture comprises a support frame, two support blocks, a support ring, a locking mechanism and a test mechanism. The two supporting blocks are rotationally arranged on the supporting frame, the two supporting blocks are provided with a rotating center line and are symmetrically arranged, and arc-shaped grooves with openings in the two ends are formed in the opposite faces of the two supporting blocks. The supporting ring is located between the two supporting blocks, the two ends of the supporting ring are in sliding fit with the arc-shaped grooves in the two sides, and the locking mechanism is used for locking the supporting ring. And the testing mechanism is arranged in the supporting ring and is used for fixing and testing the heat dissipation power of the heat dissipation module. According to the utility model, the two supporting blocks rotate on the supporting frame and the supporting ring slides in the arc-shaped grooves of the two supporting blocks, so that the angle of the heat dissipation module on the testing mechanism can be changed, the testing mechanism fits the actual use scene, and the measured heat dissipation power data has more reference significance.

The invention discloses detection equipment applied to a traffic operation and maintenance heat pump system and a fault diagnosis method, and belongs to the technical field of traffic infrastructure maintenance, the detection equipment comprises a box body and a heat pump fault tester, and the tester is internally provided with a temperature test unit, a power consumption test unit, a data acquisition unit and a fault analysis unit. The temperature testing unit detects environment temperature and inlet and outlet temperatures of a heat pump condenser and an evaporator. The power consumption testing unit detects operation current of a compressor of a heat pump. Monitoring data are stored in the data acquisition unit, and the fault type is judged and fault information is output through the fault analysis unit. According to the fault diagnosis method provided by the invention, the comparison judgment basis and the fault diagnosis logic of the normal range and the multi-order change interval of the heat pump state index are provided, the real condition of the heat pump can be comprehensively reflected, and an accurate fault type judgment result is given. Fault diagnosis is performed on the heat pump system by taking the temperature and the current as test indexes, and the device is convenient to carry and high in detection efficiency.

The invention discloses an automatic test method for rated power of a DC / DC converter of a new energy automobile, which mainly aims at finding and adjusting the condition that the actual output power of the DC / DC converter is higher than a rated value in time and avoiding the risks of fuse fusing, line overheating, low-voltage electric equipment burning, even fire and the like caused by exceeding the bearing limit of a low-voltage system component. Specifically, the method comprises the steps of firstly deploying a power test system and performing line connection, setting test parameters after deployment is completed, starting a test and collecting test data within a preset test duration; in the test process, when the output power of the DC / DC converter exceeds the power control upper and lower limit values, the current of the DC electronic load is automatically adjusted, so that the output power of the DC / DC converter returns to the control range. According to the invention, the test value of the rated power of the DC / DC converter can be accurately obtained at one time, the test cost is greatly reduced, the safety is improved, and the consistency and reliability of the test result are effectively ensured.

Methods, systems, and devices for wireless communications are described. A testing device may output an indication of multiple steering directions to a network entity. Multiple beamforming vectors corresponding to regions within a coverage angular region (CAR) of the network entity may be based on the multiple steering directions. For each region, a respective steering direction of the multiple steering directions may be determined from a respective test location selected from a set of test locations on a perimeter of a subregion within each region. The testing device may measure one or more effective isotropic radiated powers (EIRPs) of beams over an elevation or an azimuth angle associated with the multiple beamforming vectors. The testing device may verify that a cumulative or expected EIRP of the beams satisfies a EIRP envelope or mask associated with the elevation or the azimuth angle.

1. The name of the design product: switch cabinet detector. 2. The use of the design product: for the power test and function detection of high and low voltage switch cabinet before leaving the factory. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: perspective view 1.

The utility model provides a novel unmanned plane multi -rotor tilt power test system, including base, support, control box, mount, mount tilt component and rotor tilt component, is provided with control box and support on the base, is provided with base tilt component and mount on the support, is provided with rotor tilt component on the mount, the control box is located in the middle area of base, the support includes a plurality of oblique settings support rod, and the support rod top sets up the mounting plate, and the support rod surrounds control box setting, novel unmanned plane multi -rotor tilt power test system, realizes dynamic tilt simulation, constitutes independent structure, and it is convenient to carry, can carry out the test on the spot in the workshop production line side. Through the environmental module collection around temperature and humidity, can provide rotor test data under different temperature and humidity environment. Layout is reasonable, and the stability is good. Support multiple rotors to detect simultaneously, improve the detection efficiency.

The utility model provides a self-adaptive burst optical power measurement module, which is characterized in that a photodiode driving module in the module provides voltage VAPD for an OLT (Optical Line Terminal) optical receiving assembly and outputs light current IOpSig detected by the OLT optical receiving assembly to an MCU (Microprogrammed Control Unit). The OLT burst mode receiving unit analyzes and judges the differential electric signal DO + / DO-to output RxSD; after the frequency divider reduces the frequency of the RxSD, a trigger signal RSSI Trigger is output to the MCU, and when the MCU detects an effective signal of the RSSI Trigger, the trigger is interrupted, and the light current IOpSig is sampled. The burst light power measuring module supports burst light power testing, only burst light to be measured needs to be input, clock signals corresponding to the burst light to be measured do not need to be additionally provided, a laser of burst light equipment to be measured does not need to be driven, compatibility is high, and burst light intensity changes can be dynamically reflected.

The invention provides an electric power test connector convenient to disassemble and assemble, and relates to the technical field of electric power overhaul. The electric power test connector comprises a conductive main body, a guide hole is arranged in the conductive main body, and a driving slide bar is slidably arranged in the guide hole. One end of the conductive main body is provided with a plurality of limiting holes, and positioning balls are arranged in the limiting holes. A first elastic piece is arranged between the driving sliding rod and the guiding body, and the driving conical face on the driving sliding rod is pressed on the positioning ball under the elastic acting force of the first elastic piece. A gasket made of a conductive material sleeves the inner side of the positioning ball on the conductive main body; and a second elastic piece used for preventing the gasket from moving towards the inner side is arranged between the gasket and the conductive main body. And the middle part of the conductive main body is sleeved with an insulating protective sleeve. The power test connector convenient to disassemble and assemble not only can adapt to power line noses with different thicknesses, but also can ensure the reliability of connection between the connector and the power line noses.

The utility model provides an output power testing device for low-power short-wave treatment equipment, and the device comprises two induction electrodes which are arranged in parallel, and are used for inducing an electromagnetic field outputted by the low-power short-wave treatment equipment and converting the electromagnetic field into an alternating electric field; the light-emitting part is electrically connected with the induction electrode; aligning to the light-emitting part spectrum illumination analyzer; the adjustable power supply is in power-on and power-off connection with the light-emitting part; and the electric power meter is connected in series between the adjustable power supply and the light-emitting part. According to the utility model, through the innovative photoelectric conversion and comparison calibration mechanism, the safety, the precision, the cost and the operation efficiency are comprehensively optimized, and an efficient and reliable solution is provided for the power detection of low-power short-wave treatment equipment.

The invention discloses a satellite carrier signal equivalent omnidirectional radiation power test method, device and system, and the method comprises the steps: calculating a broadband carrier signal test link compensation item through a standard satellite link in a link calibration stage, and the standard satellite link is established through a standard gain antenna, a compact range reflection surface and a feed source antenna; in a satellite performance test stage, a satellite load is controlled to transmit a satellite carrier signal, and the multi-degree-of-freedom platform is controlled to drive the satellite load to move, so that a beam of the satellite carrier signal points to a compact range reflecting surface in real time in the movement process of the satellite load; and after a satellite carrier signal reaches the feed source antenna through the compact range reflecting surface, calculating a dynamic equivalent omnidirectional radiation power value of each track point according to an in-band power value of the satellite carrier signal of the satellite load at each track point and a broadband carrier signal test link compensation item. The device can simulate the dynamic working condition, and is suitable for the dynamic test process of the high-precision equivalent omnidirectional radiation power with broadband carrier characteristics.