CN111999690B - Batch delivery detection system and method for self-adaptive PMU devices - Google Patents
Batch delivery detection system and method for self-adaptive PMU devices Download PDFInfo
- Publication number
- CN111999690B CN111999690B CN202010864034.0A CN202010864034A CN111999690B CN 111999690 B CN111999690 B CN 111999690B CN 202010864034 A CN202010864034 A CN 202010864034A CN 111999690 B CN111999690 B CN 111999690B
- Authority
- CN
- China
- Prior art keywords
- plug
- pmu
- analog
- current
- voltage
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R35/00—Testing or calibrating of apparatus covered by the other groups of this subclass
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Testing Electric Properties And Detecting Electric Faults (AREA)
Abstract
The application discloses a self-adaptive PMU device batch delivery detection system and a method, which belong to the field of PMU device testing. The detection system provides various test signals required by the delivery detection of different types of PMU devices, realizes the quick construction of the detection environment when in use, realizes the automatic construction of the test cases of the PMU devices and the automatic completion of the test process, greatly improves the delivery detection efficiency of the PMU devices, simultaneously ensures the delivery quality of the PMU devices, and indirectly maintains the safe and reliable operation of a power grid.
Description
Technical Field
The application belongs to the field of PMU device testing, and particularly relates to a self-adaptive PMU device batch delivery detection system and method.
Background
PMU (Phasor Measurement Unit), namely a synchronous phasor measurement device, is a phasor measurement unit formed by taking a global positioning system (Global Positioning System, GPS) second pulse as a synchronous clock, can be used in the fields of dynamic monitoring, system protection, system analysis, prediction and the like of a power system, and is an important device for guaranteeing the safe operation of a power grid. Along with the rapid development and construction of a power grid, PMU devices are widely applied to power, and market demands are larger. As a research and development manufacturer of PMU devices, the following problems are faced in the factory detection of PMU devices at present:
1) According to different application environments, the PMU device is different In sampling plug-In configuration, and relates to analog voltage (rated voltage Un is 57.74V), analog current (rated current In is 1A or 5A), opening quantity, direct-current voltage small signals (0-10V) and direct-current small signals (4-20 mA), the types and the channel quantity are more, various devices such as a clock system, a power signal source, a small signal generator and a switching value simulation device are required to be configured for the test of the PMU, the number of limited output channels during the test is required to be subjected to multi-turn detection to finish the channel detection, and no set of sampling signal system or device capable of solving the problem of the PMU device at one time is provided;
2) The method is limited by more influences of sampling channels and sampling types of the PMU device, the related delivery detection of the PMU device is basically carried out in a manual dosing mode in the delivery detection of the PMU device, the efficiency is low, the detection quality is uncontrollable, and a system and a method capable of realizing the batch delivery detection of the PMU device are absent.
3) The PMU device sampling channel interface is usually a phoenix terminal, and when the PMU device is shipped from the factory, test preparation time such as wiring, disconnecting and the like of each PMU device accounts for half of the whole detection time, so that the PMU device shipment detection efficiency is greatly influenced.
Disclosure of Invention
Aiming at the defects or improvement demands of the prior art, the application provides a self-adaptive PMU device batch delivery detection system and method, which solve the problems of multiple types of instruments and equipment required during delivery detection of the PMU device, low maintenance efficiency and uncontrollable delivery detection quality, so as to realize high-efficiency, convenient and reliable delivery detection of the PMU device.
To achieve the above object, according to one aspect of the present application, there is provided an adaptive PMU device batch shipment detection system, including: a comprehensive signal output device and a voltage current power amplifier;
the integrated signal output device adopts a plug-in structure and comprises: the system comprises an alternating current analog quantity voltage small signal plug-in, a direct current analog quantity current small signal plug-in, an opening quantity plug-in, an Ethernet plug-in, a power plug-in, a CPU plug-in and a control communication interface, wherein the alternating current analog quantity voltage small signal plug-in is used for outputting alternating current analog quantity voltage small signals, the direct current analog quantity voltage small signal plug-in is used for outputting direct current analog quantity voltage small signals, the direct current analog quantity current small signal plug-in is used for outputting direct current analog quantity current small signals, the opening quantity plug-in is used for detecting opening quantity, the opening quantity plug-in is used for simulating an opening quantity state, the Ethernet plug-in is used for being connected with a background communication interface of a PMU device, the power plug-in is used for providing power for each plug-in, the CPU plug-in is used for controlling each plug-in to input and output signals, and the control communication interface is used for realizing information interaction with the PMU device;
the voltage-current power amplifier is used for outputting an alternating voltage large signal and an alternating current large signal according to the alternating current analog quantity voltage small signal.
Preferably, the output amplitude of the alternating-current analog quantity voltage small signal is 0-10V, the output amplitude of the alternating-current voltage large signal is 0-130V, the output amplitude of the alternating-current large signal is 0-40A, the output amplitude of the direct-current analog quantity voltage small signal is 0-10V, and the output amplitude of the direct-current analog quantity current small signal is 0-20 mA.
Preferably, the integrated signal output device can realize synchronous analog signal output of a plurality of PMU devices under the assistance of external B code time synchronization signals, and meets the requirement of multipath sampling channels of the PMU devices.
According to another aspect of the present application, there is provided a method for detecting a batch shipment detection system of an adaptive PMU device based on any one of the above, including:
after the detection system is connected with the PMU device, the detection system outputs analog voltage signals, analog current signals and opening position signals to the PMU device, and an Ethernet interface plug-in unit is used for connecting a communication background interface of the PMU device, wherein the analog voltage signals comprise alternating current analog large voltage signals and direct current analog small voltage signals, and the analog current signals comprise alternating current analog large current signals and direct current analog small current signals;
acquiring an analog voltage signal, an analog current signal and an opening position which are actually acquired by a PMU device through a data transmission protocol of a real-time dynamic monitoring system of the power system, and judging the correctness of functions of analog and switching value acquisition plug-ins when the PMU device leaves a factory for batch detection according to the analog voltage signal, the analog current signal and the opening position which are output by a detection system;
the detection system carries out remote control switching operation on the PMU device outlet through the background communication interface, meanwhile, the switching value plug-in unit of the detection system monitors the outlet position change of the PMU device in real time, and the switching value plug-in unit is compared with the actual outlet position of the PMU through remote control switching operation, so that the correctness of the function of the switching value outlet plug-in unit when the PMU device leaves a factory to carry out batch detection is judged.
Preferably, the method further comprises:
the alternating current voltage acquisition interface of the PMU device is connected with the alternating current analog quantity large-voltage output interface of the detection system, the alternating current acquisition interface of the PMU device is connected with the alternating current analog quantity large-current output interface of the detection system, the direct current voltage acquisition interface of the PMU device is connected with the direct current analog quantity small-voltage output interface of the detection system, the direct current acquisition interface of the PMU device is connected with the direct current analog quantity small-current output interface of the detection system, the opening interface of the PMU device is connected with the opening plug-in of the detection system, and the opening interface of the PMU device is connected with the opening plug-in of the detection system.
Preferably, the sensing system is coupled to the PMU device via an automatic docking mechanism, the automatic docking mechanism comprising: a fixed part, a movable part and an elastic butt joint part;
the fixing component is used for realizing the dead locking and fixing of the PMU device after the PMU device is placed and fixed and the butt joint is completed;
the elastic butting component consists of butting elastic ejector pins, a movable base and an external standard banana plug interface, wherein the butting elastic ejector pins realize reliable physical connection between different sampling interfaces of the PMU device and a detection system interface through spring force in the butting process, the movable base ensures reliable butting of PMU devices of different types and batches through X-axis and Y-axis adjustment, and the external standard banana plug can realize rapid replacement of sampling port signals of different PMU devices;
the movable component is used for realizing the movement of the PMU device, and the butt joint between the sampling port of the PMU device and the butt joint elastic thimble is pushed through the movement of the sliding rail and the roller.
Preferably, after the detection system is connected to the PMU device, the method further comprises:
the method comprises the steps of associating an output data channel of a detection system with sampling channel numbers of PMU devices and uploading background channels to realize automatic construction of factory test cases of the PMU devices in different batches, wherein the total number of sampling channels of the analog sampling channels of the PMU devices is divided according to branches, the number of the sampling channels is set to be m, each branch covers 6 channels of A, B, C three-phase voltage and current, the channel numbers are 6m-5, 6m-4, 6m-3, 6m-2, 6m-1 and 6m in sequence, 3-phase voltage and 3-phase current of a power amplifier are a group of output data, and the output channel numbers are defined as: the voltage/current category + the same A/B/C + group number m, PMU analog sampling branch and different groups of power amplifier are mapped automatically according to the sequence of voltage current type and the sequence of corresponding plug-ins of the group between different plug-ins of the comprehensive signal output device; for switching value position channels in the PMU device, the total number of the channels is divided into groups, the number of the switching value channel groups is set to be n, each group covers 8 channels, the channel numbers are 8n-7, 8n-6, 8n-5, 8n-4, 8n-3, 8n-2, 8n-1 and 8n in sequence, each switching value plug-in unit of the integrated signal output device is provided with 8 pairs of switching value channels, and the output channel numbers are defined as: the number of plug-ins+the number of channels 1/2/3/4/5/6/7/8, and the PMU switching value is automatically mapped between each group of channels and different plug-ins of the integrated signal output device according to the sequence of the plug-ins corresponding to the groups.
Preferably, judging correctness of functions of the analog quantity acquisition plug-in unit when the PMU device leaves the factory to perform batch detection according to analog quantity voltage signals and analog quantity current signals output by the detection system includes:
for the analog quantity sampling function, the number of analog quantity channels is M, a 2M+2 state sequence is constructed, and the first 2 state sequences perform simultaneous addition test on all channels to find out hardware faults and sampling precision faults of the sampling channels, wherein M=6m;
and adding the quantity of all channels by a channel polling test method, judging whether the analog quantity sampling channel has mapping errors or internal short circuit faults, and carrying out fault positioning by fault summarization.
Preferably, judging correctness of a function of the switching value acquisition plug-in unit when the PMU device leaves the factory and detects in batches according to the opening value position output by the detection system includes:
for the functions of collecting the switching value positions and judging the positions of the outlets, the number of switching value channels is N, a 2N+2 state sequence is constructed, and the first 2 state sequences carry out simultaneous deflection test on all channels to find the abnormal positions of hardware faults of the switching value channels, wherein N=8n;
and (3) shifting all channels by a channel polling test method, judging whether the switching value channels have mapping errors or internal short-circuit faults, and carrying out fault positioning through fault summarization.
According to another aspect of the present application there is provided a computer readable storage medium having stored thereon a computer program which when executed by a processor performs the steps of any of the methods described above.
In general, the above technical solutions conceived by the present application, compared with the prior art, enable the following beneficial effects to be obtained:
the hardware structure of the PMU self-adaptive PMU device delivery detection system provides various test signals required by delivery detection of different types of PMU devices, and the PMU self-adaptive PMU device delivery detection system is matched with an automatic docking mechanism to realize quick establishment of detection environments when in use, so that automatic construction of a PMU device test case and automatic completion of a test process are realized, the delivery detection efficiency of the PMU device is greatly improved, simultaneously, the delivery quality of the PMU device is also ensured, and the safe and reliable operation of a power grid is indirectly maintained.
Drawings
FIG. 1 is a hardware block diagram of a batch delivery detection system for an adaptive PMU device according to an embodiment of the present application;
FIG. 2 is a schematic flow chart of a method for batch shipment detection of an adaptive PMU device according to an embodiment of the present application;
FIG. 3 is a schematic diagram of a test connection of a batch factory detection system for an adaptive PMU device according to an embodiment of the present application;
FIG. 4 is a schematic diagram of an example automatic construction of a batch delivery detection method for an adaptive PMU device according to an embodiment of the present application;
FIG. 5 is a flowchart of a closed-loop implementation method for batch delivery detection of an adaptive PMU device according to an embodiment of the present application;
fig. 6 is a schematic diagram of a flexible automatic wiring structure of a PMU device according to an embodiment of the present application.
Detailed Description
The present application will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present application more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the application. In addition, the technical features of the embodiments of the present application described below may be combined with each other as long as they do not collide with each other.
Example 1
Fig. 1 is a hardware configuration diagram of a batch factory detection system of an adaptive PMU device according to an embodiment of the present application, including: a comprehensive signal output device and a power amplifier module;
the integrated signal output device adopts a plug-in type structure, can support various plug-in boards such as alternating current analog voltage small signals, direct current analog current small signals, opening quantity and opening quantity, and the like, the output amplitude of the alternating current analog voltage small signals is 0-10V, and the detection system covers various plug-ins required by the PMU device in cooperation with the voltage current power amplifier module to output alternating current voltage large signals of 0-130V and alternating current large signals of 0-40A. Meanwhile, the comprehensive signal output device can realize synchronous analog quantity signal output of a plurality of PMU devices under the assistance of external B code time synchronization signals, and the requirement of multipath sampling channels of the PMU devices is met.
As a preferred implementation manner, the backboard of the integrated signal output device adopts PCIE bus, and can adaptively support 8 service plug-ins except CPU plug-ins and communication plug-ins, and the plug-ins can be various plug-in boards such as an AC analog voltage small signal plug-in, a DC analog current small signal plug-in, an opening plug-in and an opening plug-in. The AC analog voltage small signal plug-in outputs 12 paths of AC voltages with the amplitude of 0-10V, and the matching voltage current power amplifier outputs 6 paths of AC voltage large signals with the amplitude of 0-130V and 6 paths of AC current large signals with the amplitude of 0-40A; the direct-current analog quantity voltage small-signal plug-in unit outputs 12 paths of direct-current voltages of 0-10V, the direct-current analog quantity current small-signal plug-in unit outputs 12 paths of direct currents of 0-20 mA, the switching-in quantity plug-in unit is provided with 8 pairs of power supply self-adaptive switching-in quantity empty joints, and the switching-out quantity plug-in unit is provided with 8 pairs of switching-out quantity empty joints. The CPU plug-in controls different plug-ins to input and output signals, and the communication plug-in realizes information interaction with the PMU device.
Furthermore, the sampling input of the PMU device is connected with the output interface of the detection system, the output channel of the PMU device is connected with the input interface of the detection system, the output signal type of the detection system is adjusted according to the sampling channel types of different PMU devices, the computer equipment controls the CPU plug-in through the control communication interface so as to control the input interface and the output interface of the detection system through the CPU plug-in, and the background master station is utilized to acquire the sampling information of the PMU device, so that the self-adaptive batch delivery detection of the PMU device is realized.
Example two
Fig. 2 is a schematic flow chart of a method for batch shipment detection of an adaptive PMU device according to an embodiment of the present application, including:
s1: connecting a detection system with a PMU device, outputting an analog voltage signal, an analog current signal and an output position signal to the PMU device by the detection system, and connecting an Ethernet interface plug-in unit with a communication background interface of the PMU device;
s2: acquiring an analog quantity value and a switching quantity position actually acquired by a PMU device through a data transmission protocol of a real-time dynamic monitoring system of the power system, and comparing and judging the correctness of functions of analog quantity and switching quantity acquisition plug-ins when the PMU device leaves a factory for batch detection in a closed loop manner;
s3: the detection system carries out remote control switching operation on the PMU device outlet through the background communication interface, meanwhile, the switching value plug-in unit of the detection system monitors the outlet position change of the PMU device in real time, and the switching value plug-in unit is compared with the actual outlet position of the PMU through remote control switching operation, so that the correctness of the function of the switching value outlet plug-in unit when the PMU device leaves a factory to carry out batch detection is judged.
As shown in fig. 3, the detection system is connected with the PMU device, and outputs analog voltage signals, analog current signals and output position signals to the PMU device, and the ethernet interactive interface plug-in is connected with the background communication interface of the PMU device, so that the analog value and the switch value position actually collected by the PMU device are obtained through the data transmission protocol of the real-time dynamic monitoring system of the power system, and the correctness of the functions of the analog and switch value collection plug-ins when the PMU device leaves the factory for batch detection is determined by closed loop comparison; the detection system carries out remote control switching operation on the PMU outlet through the background communication interface, meanwhile, the switching value plug-in unit of the detection system monitors the outlet position change of the PMU device in real time, and the switching value plug-in unit is compared with the actual outlet position of the PMU through remote control switching operation, so that the correctness of the function of the switching value outlet plug-in unit when the PMU device leaves a factory and detects in batches is judged.
Furthermore, an active correlation method of the output data channel of the detection system, the sampling channel number of the PMU device and the uploading background channel is designed, so that automatic construction of factory test cases of PMU devices in different batches is realized, the configuration time of the test cases is shortened, and the method is suitable for quick factory detection of PMU devices in different types and with different sampling port configurations.
As shown in fig. 4, for the analog sampling channels of the PMU device, the total number of analog sampling channels is divided according to branches, the number of sampling channel branches is set to be m, each branch covers a total of 6 channels of A, B, C three-phase voltage and current, the channel numbers are 6m-5, 6m-4, 6m-3, 6m-2, 6m-1 and 6m in sequence, the 3-phase voltage and 3-phase current of the power amplifier are a group of output data, the output channel number of the power amplifier is defined as "voltage/current type+same a/B/c+group number m", wherein the group number m represents the mth branch in the sampling channel, and different groups of the PMU analog sampling branches and the power amplifier are automatically mapped according to the sequence of voltage and current types and the sequence of corresponding plug-ins of the group between different plug-ins of the integrated signal output device;
for switching value position channels in the PMU device, the switching value channels are divided according to groups, the number of switching value channel groups is set to be n, each group covers 8 channel numbers, the channel numbers are sequentially 8n-7, 8n-6, 8n-5, 8n-4, 8n-3, 8n-2, 8n-1 and 8n, each switching value plug-in unit of the integrated signal output device is provided with 8 pairs of switching value channels, the output channel numbers are defined as 'plug-in unit number + channel number 1/2/3/4/5/6/7/8', and each group of channels of the PMU switching value and different plug-in units of the integrated signal output device are automatically mapped according to the sequence of plug-in units corresponding to the groups.
Further, as shown in fig. 5, the closed loop test is completed by comparing the preset value of the sampled signal of the PMU device with the actual sampled value. For the analog sampling function of the PMU device, the number of analog channels is M (M=6m), a 2M+2 state sequence is constructed, firstly, the first 2 state sequences perform simultaneous addition test on all channels, and firstly, the hardware faults and sampling precision faults of the sampling channels are found; secondly, adding the quantity to all channels by a channel polling test method, and judging whether the analog quantity sampling channel has faults such as mapping errors or internal short circuit and the like; and finally, fault positioning is carried out through fault summarization, and a corresponding factory monitoring report is generated. For the functions of collecting the switch value position and judging the outlet position, the number of switch value channels is N (N=8n), a 2N+2 state sequence is constructed, firstly, the first 2 state sequences carry out simultaneous deflection test on all channels, and firstly, the abnormal position of the hardware fault of the switch value channel is found; secondly, carrying out deflection test on all channels by a channel polling test method, and judging whether the switching value channels have faults such as mapping errors or internal short circuit and the like; and finally, fault positioning is carried out through fault summarization, and a corresponding factory monitoring report is generated.
In the embodiment of the application, the state sequence can be divided into a state and a sequence, wherein the state is a stable situation of analog quantity stable simulation transmission, and a plurality of states can form a sequence to realize dynamic change of analog quantity amplitude and phase. The state sequence includes the magnitude, phase, frequency, duration of state output, mode of state switching, etc. of the analog quantity.
Further, as shown in fig. 6, the PMU device and the detection system may be connected by an automatic docking structure, and the docking structure may perform quick connection and disconnection with the PMU device through an elastic thimble. The interface of the docking structure connects the voltage, current and switching value signals of the detection system to the thimble of the docking structure through a circuit, the thimble corresponds to the sampling interface of the PMU device one by one, and the physical wiring operation is realized after the docking is completed.
The automatic docking mechanism comprises a fixed part, a movable part, an elastic docking part and the like, wherein the fixed part mainly realizes the PMU device placement fixation and the locking fixation after the docking is completed; the moving part mainly realizes the movement of the PMU device, and the butt joint between the sampling port of the PMU device and the probe is pushed through the movement of the sliding rail and the roller; the elastic butt joint part is composed of an elastic probe, a movable base and an external standard banana plug interface, the elastic probe is reliably and physically connected with different sampling interfaces and detection device interfaces through spring force in the butt joint process, the elastic probe is fixed on a board card structural member, the board card structural member is fastened on the movable base formed by an X axis and a Y axis through a fixed support, the movable base moves the position of the elastic probe in the X axis and the Y axis through the position adjustment of a fixed bolt of the X axis and the Y axis, the reliable butt joint of PMU devices of different types and batches is ensured, the elastic probe is welded on the banana plug through a cable, and the rapid replacement of sampling port signals of different PMU devices can be realized. The PMU device is fixedly placed by the tray mechanism, and when the butt joint is completed, the PMU device is automatically locked by the locking mechanism, so that the butt joint is ensured to be reliable.
Example III
The present application also provides a computer readable storage medium, such as a flash memory, a hard disk, a multimedia card, a card memory (e.g., SD or DX memory, etc.), a Random Access Memory (RAM), a Static Random Access Memory (SRAM), a read-only memory (ROM), an electrically erasable programmable read-only memory (EEPROM), a programmable read-only memory (PROM), a magnetic memory, a magnetic disk, an optical disk, a server, an App application store, etc., on which a computer program is stored, which when executed by a processor implements the method for batch factory detection of an adaptive PMU device in a method embodiment.
It should be noted that each step/component described in the present application may be split into more steps/components, or two or more steps/components or part of operations of the steps/components may be combined into new steps/components, according to the implementation needs, to achieve the object of the present application.
It will be readily appreciated by those skilled in the art that the foregoing description is merely a preferred embodiment of the application and is not intended to limit the application, but any modifications, equivalents, improvements or alternatives falling within the spirit and principles of the application are intended to be included within the scope of the application.
Claims (7)
1. The detection method based on the self-adaptive PMU device batch delivery detection system is characterized by comprising the following steps of: a comprehensive signal output device and a voltage current power amplifier; the integrated signal output device adopts a plug-in structure and comprises: the system comprises an alternating current analog quantity voltage small signal plug-in, a direct current analog quantity current small signal plug-in, an opening quantity plug-in, an Ethernet plug-in, a power plug-in, a CPU plug-in and a control communication interface, wherein the alternating current analog quantity voltage small signal plug-in is used for outputting alternating current analog quantity voltage small signals, the direct current analog quantity voltage small signal plug-in is used for outputting direct current analog quantity small voltage signals, the direct current analog quantity current small signal plug-in is used for outputting direct current analog quantity small current signals, the opening quantity plug-in is used for detecting opening quantity, the opening quantity plug-in is used for simulating opening quantity deflection, the Ethernet plug-in is used for being connected with a background communication interface of a PMU device, the power plug-in is used for providing power for each plug-in, the CPU plug-in is used for controlling each plug-in to input and output signals, and the control communication interface is used for realizing information interaction with the PMU device; the voltage-current power amplifier is used for outputting an alternating-current analog quantity large-voltage signal and an alternating-current analog quantity large-current signal according to an alternating-current analog quantity voltage small signal, and the method comprises the following steps:
connecting a detection system with a PMU device, wherein an alternating current voltage acquisition interface of the PMU device is connected with an alternating current analog quantity large-voltage output interface of the detection system, an alternating current acquisition interface of the PMU device is connected with an alternating current analog quantity large-current output interface of the detection system, a direct current voltage acquisition interface of the PMU device is connected with a direct current analog quantity small-voltage output interface of the detection system, a direct current acquisition interface of the PMU device is connected with a direct current analog quantity small-current output interface of the detection system, an opening interface of the PMU device is connected with an opening plug-in of the detection system, and an opening interface of the PMU device is connected with an opening plug-in of the detection system;
the detection system outputs analog voltage signals, analog current signals and output position signals to the PMU device, and an Ethernet interface plug-in unit is used for connecting a PMU device communication background interface, wherein the analog voltage signals comprise alternating current analog large voltage signals and direct current analog small voltage signals, and the analog current signals comprise alternating current analog large current signals and direct current analog small current signals;
acquiring an analog voltage signal, an analog current signal and an opening position actually acquired by a PMU device through a data transmission protocol of a real-time dynamic monitoring system of the power system, wherein the analog voltage signal actually acquired by the PMU device comprises an alternating current analog large voltage signal and a direct current analog small voltage signal, and the analog current signal actually acquired by the PMU device comprises an alternating current analog large current signal and a direct current analog small current signal;
respectively comparing analog voltage signals, analog current signals and opening positions output by a detection system with analog voltage signals, analog current signals and opening positions actually collected by a PMU device in a closed loop manner to judge the correctness of functions of analog and switching value collection plug-ins when the PMU device leaves a factory for batch detection;
the detection system carries out remote control switching operation on the PMU device outlet through the background communication interface, meanwhile, the switching value plug-in unit of the detection system monitors the outlet position change of the PMU device in real time, and the switching value plug-in unit is compared with the actual outlet position of the PMU through remote control switching operation, so that the correctness of the function of the switching value outlet plug-in unit when the PMU device leaves a factory to carry out batch detection is judged.
2. The method of claim 1, wherein the sensing system is coupled to the PMU device via an automatic docking mechanism comprising: a fixed part, a movable part and an elastic butt joint part;
the fixing component is used for realizing the dead locking and fixing of the PMU device after the PMU device is placed and fixed and the butt joint is completed;
the elastic butting component consists of a butting elastic thimble, a movable base and an external standard banana plug interface, wherein the butting elastic thimble realizes reliable physical connection between different sampling interfaces of the PMU device and a detection system interface through spring force in the butting process, the movable base ensures reliable butting of different PMU devices through X-axis and Y-axis adjustment, and the external standard banana plug can realize rapid replacement of sampling port signals of different PMU devices;
the movable component is used for realizing the movement of the PMU device, and the butt joint between the sampling port of the PMU device and the butt joint elastic thimble is pushed through the movement of the sliding rail and the roller.
3. The method of any one of claims 1 or 2, wherein after the sensing system is connected to the PMU device, the method further comprises:
the method comprises the steps of associating an output data channel of a detection system with sampling channel numbers of PMU devices and uploading background channels to realize automatic construction of factory test cases of different PMU devices, wherein the total number of sampling channels of analog sampling channels of the PMU devices is divided according to branches, the number of sampling channel branches is set to be m, each branch covers 6 channels of A, B, C three-phase voltage and current, the channel numbers are 6m-5, 6m-4, 6m-3, 6m-2, 6m-1 and 6m in sequence, 3-phase voltage and 3-phase current of a power amplifier are a group of output data, and the output channel numbers are defined as: the voltage/current category + the same A/B/C + group number m, PMU analog sampling branch and different groups of power amplifier are mapped automatically according to the sequence of voltage current type and the sequence of corresponding plug-ins of the group between different plug-ins of the comprehensive signal output device; for switching value position channels in the PMU device, the total number of the channels is divided into groups, the number of the switching value channel groups is set to be n, each group covers 8 channels, the channel numbers are 8n-7, 8n-6, 8n-5, 8n-4, 8n-3, 8n-2, 8n-1 and 8n in sequence, each switching value plug-in unit of the integrated signal output device is provided with 8 pairs of switching value channels, and the output channel numbers are defined as: the number of plug-ins+the number of channels 1/2/3/4/5/6/7/8, and the PMU switching value is automatically mapped between each group of channels and different plug-ins of the integrated signal output device according to the sequence of the plug-ins corresponding to the groups.
4. The method of claim 3, wherein determining the correctness of the analog acquisition plug-in function of the PMU device during the factory batch test based on the analog voltage signal and the analog current signal output by the test system comprises:
for the analog quantity sampling function, the number of analog quantity channels is M, a 2M+2 state sequence is constructed, and the first 2 state sequences perform simultaneous addition test on all channels to find out hardware faults and sampling precision faults of the sampling channels, wherein M=6m;
and adding the quantity of all channels by a channel polling test method, judging whether the analog quantity sampling channel has mapping errors or internal short circuit faults, and carrying out fault positioning by fault summarization.
5. The method of claim 3, wherein determining the correctness of the function of the switching value collection plug-in unit when the PMU device leaves the factory for batch inspection according to the position of the opening value output by the inspection system comprises:
for the functions of collecting the switching value positions and judging the positions of the outlets, the number of switching value channels is N, a 2N+2 state sequence is constructed, and the first 2 state sequences carry out simultaneous deflection test on all channels to find the abnormal positions of hardware faults of the switching value channels, wherein N=8n;
and (3) shifting all channels by a channel polling test method, judging whether the switching value channels have mapping errors or internal short-circuit faults, and carrying out fault positioning through fault summarization.
6. The method of claim 1, wherein the ac analog voltage small signal output amplitude is 0-10V, the ac voltage large signal output amplitude is 0-130V, the ac current large signal output amplitude is 0-40A, the dc analog voltage small signal output amplitude is 0-10V, and the dc analog current small signal output amplitude is 0-20 mA.
7. The method of claim 1 or 6, wherein the integrated signal output device is capable of implementing synchronous analog signal output to a plurality of PMU devices with the aid of an external B-code time synchronization signal, so as to satisfy the requirement of multiple sampling channels of the PMU devices.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010864034.0A CN111999690B (en) | 2020-08-25 | 2020-08-25 | Batch delivery detection system and method for self-adaptive PMU devices |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010864034.0A CN111999690B (en) | 2020-08-25 | 2020-08-25 | Batch delivery detection system and method for self-adaptive PMU devices |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111999690A CN111999690A (en) | 2020-11-27 |
| CN111999690B true CN111999690B (en) | 2023-08-22 |
Family
ID=73472024
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010864034.0A Active CN111999690B (en) | 2020-08-25 | 2020-08-25 | Batch delivery detection system and method for self-adaptive PMU devices |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111999690B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4646299A (en) * | 1983-08-01 | 1987-02-24 | Fairchild Semiconductor Corporation | Method and apparatus for applying and monitoring programmed test signals during automated testing of electronic circuits |
| CN103163499A (en) * | 2013-03-01 | 2013-06-19 | 江西省电力科学研究院 | Synchronous phasor measuring unit (PMU) detecting device |
| CN203444095U (en) * | 2013-08-16 | 2014-02-19 | 国家电网公司 | Portable synchronous phasor measurement unit (PMU) tester |
| CN103698728A (en) * | 2013-12-16 | 2014-04-02 | 广东电网公司电力科学研究院 | Tester for testing measurement accuracy of PMU (Pressure Measuring Unit) and testing method thereof |
| CN104362744A (en) * | 2014-10-24 | 2015-02-18 | 南京南瑞继保工程技术有限公司 | Integrated measurement and control device |
| CN106771599A (en) * | 2016-11-21 | 2017-05-31 | 国网四川省电力公司电力科学研究院 | Intelligent substation synchronous phasor measuring device method of testing and test device |
| CN107402332A (en) * | 2016-05-20 | 2017-11-28 | 中国电力科学研究院 | A kind of Intelligent power distribution terminal multi-epitope automatic checkout system and its detection method |
| CN109521272A (en) * | 2018-08-06 | 2019-03-26 | 许继集团有限公司 | A kind of synchronous phasor measuring device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10132853B2 (en) * | 2015-04-10 | 2018-11-20 | Washington State University | Wide area fault detection method using PMU data |
-
2020
- 2020-08-25 CN CN202010864034.0A patent/CN111999690B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4646299A (en) * | 1983-08-01 | 1987-02-24 | Fairchild Semiconductor Corporation | Method and apparatus for applying and monitoring programmed test signals during automated testing of electronic circuits |
| CN103163499A (en) * | 2013-03-01 | 2013-06-19 | 江西省电力科学研究院 | Synchronous phasor measuring unit (PMU) detecting device |
| CN203444095U (en) * | 2013-08-16 | 2014-02-19 | 国家电网公司 | Portable synchronous phasor measurement unit (PMU) tester |
| CN103698728A (en) * | 2013-12-16 | 2014-04-02 | 广东电网公司电力科学研究院 | Tester for testing measurement accuracy of PMU (Pressure Measuring Unit) and testing method thereof |
| CN104362744A (en) * | 2014-10-24 | 2015-02-18 | 南京南瑞继保工程技术有限公司 | Integrated measurement and control device |
| CN107402332A (en) * | 2016-05-20 | 2017-11-28 | 中国电力科学研究院 | A kind of Intelligent power distribution terminal multi-epitope automatic checkout system and its detection method |
| CN106771599A (en) * | 2016-11-21 | 2017-05-31 | 国网四川省电力公司电力科学研究院 | Intelligent substation synchronous phasor measuring device method of testing and test device |
| CN109521272A (en) * | 2018-08-06 | 2019-03-26 | 许继集团有限公司 | A kind of synchronous phasor measuring device |
Non-Patent Citations (1)
| Title |
|---|
| 何笠 等.智能变电站PMU装置测试仪研制.《四川电力技术》.2018,第41卷(第3期), * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111999690A (en) | 2020-11-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101334448B (en) | Test platform and method for testing PC board | |
| CN110554351B (en) | Real load detection method and system of non-invasive load electric energy meter | |
| CN107247195B (en) | Handheld phase checking instrument applied to intelligent substation and phase checking method | |
| CN108446197A (en) | A kind of control protection board automatic checkout system and method | |
| CN111830376A (en) | Comprehensive detection platform for distributor | |
| CN214585871U (en) | Novel relay test device | |
| CN110954769A (en) | Hardware-in-loop test system and method for distribution automation feeder terminal equipment | |
| CN111999690B (en) | Batch delivery detection system and method for self-adaptive PMU devices | |
| CN219871718U (en) | Power supply test system | |
| CN112698135A (en) | Detection system and method for satellite loading test of satellite power supply and distribution system | |
| CN115097251B (en) | Test system and method, control module and readable storage medium | |
| CN218788073U (en) | Circuit equipment testing device | |
| CN116973680A (en) | Low-current grounding line selection device, system and fault line investigation method | |
| CN113589043B (en) | System and method for detecting secondary fusion and deep fusion power distribution equipment | |
| CN110736951A (en) | portable fault indicator detection and distribution network fault simulation device | |
| CN211669544U (en) | Test system | |
| CN113468054A (en) | Automatic test system and method for satellite interface and function test | |
| CN102759674B (en) | Universal adapter for testing optocouplers | |
| CN212410781U (en) | Detection device for locomotive contactor | |
| CN213843429U (en) | Special cable test system for spaceflight | |
| CN221078876U (en) | System for automatic test of TTU device | |
| CN216145109U (en) | Automatic test system integrating IO output and AI sampling plug-in | |
| CN211426666U (en) | Testing device for relay protection device | |
| CN217404452U (en) | Discharge testing device | |
| CN114047427A (en) | Test system of circuit board card |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |