CN107796999B - Online power frequency phase monitoring device - Google Patents
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- CN107796999B CN107796999B CN201711275036.0A CN201711275036A CN107796999B CN 107796999 B CN107796999 B CN 107796999B CN 201711275036 A CN201711275036 A CN 201711275036A CN 107796999 B CN107796999 B CN 107796999B
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- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims description 3
- 229910052744 lithium Inorganic materials 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 6
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- 238000000819 phase cycle Methods 0.000 description 3
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 2
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- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R29/00—Arrangements for measuring or indicating electric quantities not covered by groups G01R19/00 - G01R27/00
- G01R29/18—Indicating phase sequence; Indicating synchronism
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- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C17/00—Arrangements for transmitting signals characterised by the use of a wireless electrical link
- G08C17/02—Arrangements for transmitting signals characterised by the use of a wireless electrical link using a radio link
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/34—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering
- H02J7/35—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering with light sensitive cells
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Abstract
The invention provides an online power frequency phase monitoring device, which relates to the field of power grid identification equipment. Each phase monitoring communication machine comprises a first controller, a first voltage module, a first GPS satellite antenna, a first communication module and a nuclear phase module, wherein the first voltage module is connected with the first controller, the first GPS satellite antenna is connected with the first controller, the first communication module is connected with the first controller and is in communication connection with the phase monitoring base station, and the nuclear phase module is connected with the first controller. Compared with the prior art, the online power frequency phase monitoring device provided by the invention solves the problem of checking the unified phase angle in the power grid, and is energy-saving, environment-friendly and convenient to maintain.
Description
Technical Field
The invention relates to the field of power grid identification equipment, in particular to an online power frequency phase monitoring device.
Background
In the field of power distribution, nuclear phase refers to checking whether two power sources or loop phases and phase sequences are identical by using meters or other means. I.e. in operation of the actual power, the phase difference is measured. The new, rebuilding and expanding substation and transmission line, and before the line is overhauled and the power is transmitted to the user, the three-phase circuit phase checking test is needed to ensure that the phase sequence of the transmission line is consistent with the phase sequence required by the three-phase load of the user.
The inventor researches that the existing phasing mode mainly comprises the following modes:
1. local wired phasing: the domestic high-voltage power lines are phased in a wired mode, the devices are more, at least 4 persons are required to operate during the phasing, 1 person acts as a command, 2 persons wear insulating boots and wear insulating gloves to act as phasing staff, and 1 person meters record. The phasing work is carried out according to the command of commander, the high-voltage operator fixes the high-voltage lead on the insulating rod, the length is suitable, when the insulating rod is used for leading the high-voltage line to contact the high-voltage power supply point, the action is coordinated, two persons correspond to each other so as to avoid error and danger, and the problem of the method is that when the high-voltage line, especially the phase detection of the high-voltage overhead line, two devices are required to contact the two leads at the same time, the wired mode is inconvenient to use, and the method has certain danger.
2. Local wireless phasing: when the wireless phasing system performs phasing, no special intervention is caused to the power grid, the power grid can still keep working normally, and the phasing work can be completed correctly within a few minutes. The wireless phasing device communicates through radio signals, the application range can be expanded to about 10 meters, and the wireless phasing device can penetrate through the enclosing wall and the partition board for use, so that one person can easily and safely operate two instruments, and compared with wired phasing, the wireless phasing device reduces the trouble of time and labor waste. However, wireless phasing has geographical limitations, and the phasing range is small, so that phasing cannot be completed for power line networks that are far apart.
3. Remote wireless phasing: the GPS satellite time service technology and the wireless transmission technology are utilized, so that the phasing distance can reach more than 500 km, all the advantages of a local wireless phasing instrument are included, and the difficult problem of small phasing range is solved. Meanwhile, the phasing can be carried out according to the characteristics of the power equipment such as the ring main unit, the tapping box, the transformer and the like.
The wireless phasing devices can only complete point-to-point phasing, and with the continuous development of a power system, in order to adapt to the complexity of a future power line network, an online power frequency phase monitoring device needs to be designed and manufactured.
Disclosure of Invention
The invention aims to provide an online power frequency phase monitoring device which can realize online real-time monitoring of a power frequency phase and fundamentally solve the problem of unified initial phase angle check in a power grid.
The invention is realized by adopting the following technical scheme.
An online power frequency phase monitoring device is used for measuring the phases of a plurality of test points and comprises a phase monitoring base station, a plurality of phase collectors, a plurality of phase monitoring communication machines and a plurality of solar components, wherein the plurality of phase collectors are in communication connection with the plurality of phase monitoring communication machines in a one-to-one correspondence manner and are used for collecting voltage data and phase information of the plurality of test points and transmitting the voltage data and the phase information to the phase monitoring communication machines, and the plurality of solar components are in communication connection with the plurality of phase monitoring communication machines in a one-to-one correspondence manner so as to supply power for the plurality of phase monitoring communication machines. Each phase monitoring communication machine comprises a first controller, a first voltage module, a first GPS satellite antenna, a first communication module and a phase checking module, wherein the first voltage module is connected with the first controller and used for receiving voltage data and phase information and transmitting the voltage data and the phase information to the first controller, the first GPS satellite antenna is connected with the first controller and used for collecting GPS second time information and transmitting the GPS second time information to the first controller, the first communication module is connected with the first controller and is in communication connection with a phase monitoring base station and used for transmitting the GPS second time information, the voltage data and the phase information to the phase monitoring base station, and the phase checking module is connected with the first controller and used for checking the phase information.
Further, the phase collector comprises a collecting module, a second controller and a second communication module, wherein the collecting module is connected with the second controller and used for collecting voltage data of a test point and GPS second time information and transmitting the voltage data and the GPS second time information to the second controller, the second controller is connected with the second communication module, and the second communication module is in communication connection with the first voltage module.
Further, the second communication module is a bluetooth communication module.
Further, the phase monitoring base station comprises a phase monitoring base station host, a base station collector, a second GPS satellite antenna, a high-precision clock circuit and a third communication module, wherein the base station collector is in communication connection with the phase monitoring base station host and is used for collecting standard phase information and transmitting the standard phase information to the phase monitoring base station host, the phase monitoring base station host is connected with the third communication module, the third communication module is in communication connection with the first communication module so as to acquire voltage data, phase information and GPS second time information, and the second GPS satellite antenna and the high-precision clock circuit are both connected with the phase monitoring base station host.
Further, the phase monitoring base station also comprises a resistive touch screen, and the resistive touch screen is connected with the phase monitoring base station host and used for displaying standard phase information.
Further, the third communication module is a 4G mobile phone network communication module.
Further, the solar module comprises a solar panel, a charge-discharge controller, an inversion output mechanism and a storage battery, wherein the solar panel is connected with the charge-discharge controller, the charge-discharge controller is connected with the storage battery to control the solar panel to charge the storage battery, the charge-discharge controller is also connected with the inversion output mechanism to control the storage battery to discharge through the inversion output mechanism, and the inversion output mechanism is connected with the phase monitoring communication machine to supply power to the phase monitoring communication machine.
Further, the inversion output mechanism comprises a DC/AC inverter and a transformer, the DC/AC inverter is connected with the transformer in series, the DC/AC inverter is connected with a charge-discharge controller, and the transformer is connected with a phase monitoring interconnecting machine.
Further, the first communication module is a wireless bluetooth communication module.
An online power frequency phase monitoring device is used for measuring the phases of a plurality of test points and comprises a phase monitoring base station, a plurality of phase collectors, a plurality of phase monitoring communication machines, a data server and a plurality of solar modules, wherein the plurality of phase collectors are in communication connection with the plurality of phase monitoring communication machines in a one-to-one correspondence manner and are used for collecting voltage data and phase information of the plurality of test points and transmitting the voltage data and the phase information to the phase monitoring communication machines, and the plurality of solar modules are in communication with the plurality of phase monitoring communication machines in a one-to-one correspondence manner so as to supply power for the plurality of phase monitoring communication machines. Each phase monitoring communication machine comprises a first controller, a first voltage module, a first GPS satellite antenna, a first communication module and a nuclear phase module, wherein the first voltage module is connected with the first controller and used for receiving voltage data and phase information and transmitting the voltage data and the phase information to the first controller, the first GPS satellite antenna is connected with the first controller and used for receiving GPS second time information and transmitting the GPS second time information to the first controller, the first communication module is connected with the first controller and is in communication connection with a data server and used for transmitting the GPS second time information, the voltage data and the phase information to the data server, and the nuclear phase module is connected with the first controller and used for carrying out nuclear phase on the voltage data, the phase information and the GPS second time information. The phase monitoring base station is in communication connection with the data server and is used for collecting standard phase information and uploading the standard phase information to the data server. The data server comprises a server body and a user inquiry end, wherein the server body is provided with a database for storing voltage data, phase information and GPS second time information, and the user inquiry end is connected with the server body and used for inquiring the voltage data, the phase information and the GPS second time information.
The invention has the following beneficial effects:
the invention provides an online power frequency phase monitoring device, which is characterized in that a plurality of phase collectors are used for collecting the initial phase angles of a plurality of test points by collecting the voltage data and the phase information of the plurality of test points, the collected voltage data and the phase information are sent to a phase monitoring communication machine, a first communication module on the phase monitoring communication machine is in communication connection with a phase monitoring base station, and GPS second time information is collected through a first GPS satellite antenna so as to transmit the voltage data, the phase information and the GPS second time information to the phase monitoring base station. The phase monitoring base station collects a local reference phase and compares the local reference phase with an initial phase angle collected by the phase collector to determine the phases of a plurality of test points. Meanwhile, the phase monitoring communication machine is powered by the solar module, so that the energy is saved. Compared with the prior art, the online power frequency phase monitoring device provided by the invention fundamentally solves the problem of checking the unified phase angle in the power grid, and is energy-saving, environment-friendly and convenient to maintain.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural diagram of an online power frequency phase monitoring device according to a first embodiment of the present invention;
FIG. 2 is a schematic diagram of a connection structure of the phase monitoring communication device in FIG. 1;
FIG. 3 is a schematic diagram of the connection of the phase acquisition device of FIG. 1;
fig. 4 is a schematic diagram of a connection structure of the phase monitoring base station in fig. 1;
FIG. 5 is a schematic diagram of the internal circuit connections of the solar module of FIG. 1;
fig. 6 is a schematic structural diagram of an online power frequency phase monitoring device according to a second embodiment of the present invention.
Icon: 100. 200-an online power frequency phase monitoring device; 110-a phase monitoring base station; 111-phase monitoring base station hosts; 113-a base station collector; 115-a second GPS satellite antenna; 117-a third communication module; 119-a resistive touch screen; 130-phase acquisition device; 131-an acquisition module; 133-a second controller; 135-a second communication module; 150-a phase monitoring tie; 151-a first controller; 153-a first voltage module; 155-a first GPS satellite antenna; 157-a first communication module; 159-nuclear phase module; 170-a solar module; 171-solar panels; 173-a charge-discharge controller; 175-an inversion output mechanism; 1751-DC/AC inverter; 1753-a transformer; 177-a battery; 210-data server.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. The components of the embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.
In the description of the present invention, it should be noted that, directions or positional relationships indicated by terms such as "center", "upper", "vertical", "horizontal", "inner", "outer", etc., are directions or positional relationships based on those shown in the drawings, or those that are conventionally put in place when the inventive product is used, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific direction, be configured and operated in a specific direction, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like, are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.
In the description of the present invention, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "connected," "mounted," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
Some embodiments of the present invention are described in detail below with reference to the accompanying drawings. Features of the embodiments described below may be combined with each other without conflict.
First embodiment
Referring to fig. 1 (dashed lines in the drawing indicate communication connection), the present embodiment provides an on-line power frequency phase monitoring device 100 for measuring phases of a plurality of test points, where the on-line power frequency phase monitoring device 100 includes a phase monitoring base station 110, a plurality of phase collectors 130, a plurality of phase monitoring liaisons 150, and a plurality of solar modules 170. The plurality of phase collectors 130 are in communication connection with the plurality of phase monitoring communication machines 150 in a one-to-one correspondence manner, and are used for collecting voltage data and phase information of the plurality of test points and transmitting the voltage data and the phase information to the phase monitoring communication machines 150. The plurality of solar modules 170 are connected to the plurality of phase monitoring tie machines 150 in a one-to-one correspondence to supply power to the plurality of phase monitoring tie machines 150. The plurality of phase monitoring communicators 150 are all in communication connection with the phase monitoring base station 110 to transmit the voltage data and the phase information collected by the plurality of phase collectors 130 to the phase monitoring base station 110 for comparison.
The phase monitoring base station 110 continuously collects standard phase information at a fixed location, and takes the signal as a standard A, B, C three phase of a nuclear phase, and the phase information transmitted by the online real-time phase monitoring communication machine 150 is compared with the standard phase information in each nuclear phase in the future, and the phase information is a determinable A phase of the same phase as the standard A phase, a determinable B phase of the same phase as the standard B phase, and a determinable C phase of the same phase as the standard C phase.
In the process of collecting phase information and voltage data, a high internal resistance, low bias current, anti-interference and antistatic electronic device is used for taking the capacitance current of a 50HZ circuit, and an active first-order low-pass filter circuit is used for selecting a 50Hz signal. Among other advantages, the active filter: 1. the resonant frequency can be arbitrarily determined by the resistance and the capacitance, and the amplifier can compensate the resonant circuit; 2. a filter circuit capable of obtaining a high Q value (Q refers to a quality factor of the circuit); 3. the resonant frequency can be changed at will and sent to a signal shaping circuit (the shaping circuit is characterized in that the hysteresis comparison method has two threshold voltages, namely the circuit has hysteresis characteristics, so that the circuit has certain anti-interference capability). The signal is then processed, corrected, shaped and fed to the input of the first communication module 157.
In this embodiment, the phase monitoring base station 110 is powered by AC 220V. The phase monitoring tie 150 is powered by a solar module 170. Solar cell modules are solid state devices that utilize the electronic properties of semiconductor materials to achieve P-N conversion. The device is a device which responds to light and can convert light energy into electric power, and a polycrystalline silicon material which generates a photovoltaic high effect is selected. The power generation principle is that P-type crystalline silicon is doped with phosphorus to obtain N-type silicon, so that a P-N junction is formed. When light irradiates the surface of the solar cell, a part of photons are absorbed by the silicon material; the energy of the photons is transferred to the silicon atoms, so that electrons are more migrated and become free electrons which are accumulated on two sides of the P-N junction to form a potential difference, and then the potential difference is directly connected with a storage battery 177 in the phase monitoring communication machine 150 to directly charge the storage battery 177. The phase harvester 130 was powered by a 10Ah/3.7V lithium battery. Because the phase collector 130 works for 0.02s every 10 minutes, the rest time is in a dormant state, the power consumption in the working state is between 3 and 5mAh, the power consumption in the dormant state is less than 0.1mAh, the total time in the working state in 10 years can be known to be 0.292 hours through the conditions, and the maximum accumulated power consumption is 0.0015A; the total time of the sleep state is 87595.13 hours, the maximum accumulated power consumption is 8.76A, and the total 10 years power consumption is 8.7615A. Therefore, the service life of the lithium battery in the phase collector 130 is theoretically more than 10 years.
Referring to fig. 2 (the dashed lines in the figure represent communication connections), each phase monitoring tie 150 includes a first controller 151, a first voltage module 153, a first GPS satellite antenna 155, a first communication module 157, and a phase checking module 159, and the first voltage module 153 is connected to the first controller 151 for receiving voltage data and phase information and transmitting to the first controller 151. The first GPS satellite antenna 155 is connected to the first controller 151, and the first GPS satellite antenna 155 can receive GPS second time information transmitted from a GPS satellite and transmit the received GPS second time information to the first controller 151. The first communication module 157 is connected to the first controller 151 and is in communication connection with the phase monitoring base station 110 for transmitting GPS second time information, voltage data and phase information to the phase monitoring base station 110, and the phase checking module 159 is connected to the first controller 151 for checking the voltage data and the phase information.
In this embodiment, the first communication module 157 is a wireless bluetooth communication module. It should be noted that the first communication module 157 may be a 4G network communication module or a wireless WiFi communication module, etc., which is not limited herein.
Referring to fig. 3 (the dashed line in the drawing indicates a communication connection), the phase collector 130 includes a collection module 131, a second controller 133, and a second communication module 135, where the collection module 131 is connected to the second controller 133, and is used to collect voltage data of a test point and transmit the voltage data to the second controller 133, the second controller 133 is connected to the second communication module 135, and the second communication module 135 is connected to the first voltage module 153 in a communication manner.
In this embodiment, the phase collector 130 is installed at a position of a typical test point of the overhead line, collects phase information and voltage data of the test point in real time, and then transmits the phase information and the voltage data to the phase monitoring and communicating machine 150 through a wireless frequency hopping communication technology.
Preferably, the second communication module 135 is a bluetooth communication module. Of course, the present invention is not limited to this, and other modes such as communication by wire or communication by a local area network may be used, and the present invention is not limited to this.
It should be noted that the phase collector 130 may be a fixed phase collector 130 installed on an overhead line, or may be a handheld terminal, so as to facilitate phase collection and voltage collection on different test points.
Referring to fig. 4, the phase monitoring base station 110 includes a phase monitoring base station host 111, a base station collector 113, a second GPS satellite antenna 115, a third communication module 117, and a resistive touch screen 119, where the base station collector 113 is communicatively connected to the phase monitoring base station host 111 and is used to collect standard phase information and transmit the standard phase information to the phase monitoring base station host 111, the phase monitoring base station host 111 is connected to the third communication module 117, the third communication module 117 is communicatively connected to the first communication module 157 to obtain voltage data and phase information, the second GPS satellite antenna 115 is connected to the phase monitoring base station host 111, and standard time from a GPS satellite can be obtained through the second GPS satellite antenna 115, so that the base station collector 113 collects standard phase information every 3 s. Of course, it should be noted that the period of the base station collector 113 collecting the standard phase information is not limited to 3s, but may be 5s or 8s, and the like, and is not particularly limited herein. The resistive touch screen 119 is connected to the phase monitoring base station host 111, and is used for displaying standard phase information, so that a worker can conveniently know the standard phase information of the area in real time.
In this embodiment, the third communication module 117 is a 4G mobile phone network communication module. Of course, the communication is not limited to this, and communication may be performed by other modes such as a network connection or wireless WiFi, and is not particularly limited herein.
It should be noted that the global positioning system (Global Positioning System, GPS) is composed of a group of satellites that were launched sequentially by the united states department of defense in 1978, and 24 satellites in total run in 6 earth-centered orbital planes, with the number of satellites visible on the earth always varying from 4 to 11, depending on time and place. The first GPS satellite antenna 155 and the second GPS satellite antenna 115 are both a low-power radio signal that receives the GPS satellite transmissions, and the GPS time is calculated. To obtain accurate GPS time, the first GPS satellite antenna 155 or the second GPS satellite antenna 115 must first receive signals from at least 4 GPS satellites to calculate the three-dimensional position where the satellite is located. After a specific position has been obtained, the first GPS satellite antenna 155 or the second GPS satellite antenna 115 can ensure the timing accuracy of the clock as long as it receives 1 GPS satellite signal.
Referring to fig. 5, the solar module 170 includes a solar panel 171, a charge and discharge controller 173, an inversion output mechanism 175, and a storage battery 177, the solar panel 171 is connected to the charge and discharge controller 173, the charge and discharge controller 173 is connected to the storage battery 177 to control the solar panel 171 to charge the storage battery 177, the charge and discharge controller 173 is also connected to the inversion output mechanism 175 to control the storage battery 177 to discharge through the inversion output mechanism 175, and the inversion output mechanism 175 is connected to the phase monitoring communication machine 150 to supply power to the phase monitoring communication machine 150.
The inverter output mechanism 175 includes a DC/AC inverter 1751 and a transformer 1753, the DC/AC inverter 1751 is connected in series with the transformer 1753, and the DC/AC inverter 1751 is connected with the charge and discharge controller 173, and the transformer 1753 is connected with the phase monitoring tie 150.
In this embodiment, solar module 170 is mounted on phase monitoring tie 150. Of course, the solar module 170 may be separately disposed and connected to the phase monitoring communication machine 150 through a wire, and the solar module 170 is suitable for being separately disposed when the solar module is relatively bulky.
In summary, in the on-line power frequency phase monitoring device 100 provided in this embodiment, the base station collector 113 collects the standard phase information in the target area and uploads the standard phase information to the monitoring base station host. The phase information of the test points is collected through the plurality of phase collectors 130, the first communication module 157 is in communication connection with the second communication module 135, the phase information collected by the phase collectors 130 is transmitted to the phase monitoring communication machine 150, meanwhile, the first communication module 157 is in communication connection with the third communication module 117, the phase information collected by the phase collectors 130 is compared with the standard phase information collected by the base station collector 113, the phase information which is the same as the standard A can be judged as the phase A, the phase which is the same as the standard B can be judged as the phase B, and the phase which is the same as the standard C can be judged as the phase C. Meanwhile, a solar module 170 is installed on the phase monitoring communication machine 150, and solar energy is absorbed through a solar panel 171 and converted into electric energy to supply power to the phase monitoring communication machine 150. Compared with the prior art, the online power frequency phase monitoring device 100 provided by the embodiment can realize real-time monitoring and real-time phase checking, and can perform data communication in any time and complete unified phase angle checking. The method and the device fundamentally solve the problem of uniform initial phase angle check in the power grid, and have the advantages of environmental protection, maintenance cost, good stability and the like.
Second embodiment
Referring to fig. 6 (dashed lines in the drawing indicate communication connection), the present embodiment provides an online power frequency phase monitoring apparatus 200 for measuring phases of a plurality of test points, including a phase monitoring base station 110, a plurality of phase collectors 130, a plurality of phase monitoring communication machines 150, a data server 210, and a plurality of solar modules 170, where the plurality of phase collectors 130 are in one-to-one communication connection with the plurality of phase detection, are used for collecting voltage data and phase information of the plurality of test points and transmitting the voltage data and phase information to the phase monitoring communication machines 150, and the plurality of solar modules 170 are in one-to-one connection with the plurality of phase monitoring communication machines 150, so as to supply power to the plurality of phase monitoring communication machines 150. Each phase monitoring tie 150 is communicatively coupled to a data server 210, while the phase monitoring base station 110 is also communicatively coupled to the data server 210.
The phase monitoring base station 110 continuously collects standard phase information at a fixed location, takes the signal as a standard A, B, C three phase of a nuclear phase, and then uploads the standard phase information to a database server through the internet. In each phase checking in the future, the phase information transmitted by the online real-time phase monitoring communication machine 150 is compared with the real-time standard phase information in the database server, and the phase information which is in phase with the standard A can be judged as the phase A, the phase information which is in phase with the standard B can be judged as the phase B, and the phase information which is in phase with the standard C can be judged as the phase C.
Each phase monitoring tie 150 includes a first controller 151, a first voltage module 153, a first GPS satellite antenna 155, a first communication module 157, and a phase checking module 159, the first voltage module 153 is connected with the first controller 151 for receiving voltage data and phase information and transmitting to the first controller 151, the first GPS satellite antenna 155 is connected with the first controller 151 for receiving GPS second time information and transmitting to the first controller 151, the first communication module 157 is connected with the first controller 151 and communicating with the data server 210 for transmitting the GPS second time information and the voltage data and phase information to the data server 210, and the phase checking module 159 is connected with the first controller 151 for checking the voltage data and the phase information and the GPS second time information. The phase monitoring base station 110 is communicatively connected to the data server 210 for collecting and uploading standard phase information to the data server 210.
The data server 210 includes a server body having a database for storing voltage data and phase information and GPS second time information, and a user inquiry terminal connected to the server body for inquiring the voltage data and the phase information and the GPS second time information.
In this embodiment, the database server monitors the operation condition in real time, alarms abnormal data, and provides functions of the Internet server and the database server by accessing the database server to the Internet through a high-speed broadband. In a certain power grid area, a phase monitoring base station 110 is provided, and the phase monitoring base station 110 can continuously collect A, B, C three-phase angle information of a local power grid and satellite GPS second time information for 24 hours through a base station collector 113, and transmit the information to a server in real time. With this information, the server can determine the phase angle of the three phases of the local grid A, B, C at each GPS second time; and stores the information in a database for convenient inquiry by users.
The embodiment provides an online power frequency phase monitoring device 200, by setting a data server 210, a phase monitoring communication machine 150 can establish connection with a database server through a mobile phone 4G network mode, and send phase information collected by a test point together with GPS second time information of collection time to the database server, and the database server can determine whether a remote measuring point line is A phase, B phase or C phase by comparing the phase angle information of A, B, C three phases of a local power grid at the same GPS second time collected by the information same phase monitoring base station 110. The database server then sends the comparison back to the online real-time phase monitoring tie 150, displaying the measurement results. And the data server 210 is provided with a query end, so that a worker can conveniently query the local standard phase information in real time. Compared with the prior art, the online power frequency phase monitoring device 200 provided by the embodiment can realize the functions of real-time monitoring and real-time phase checking, and meanwhile, the phase checking process is convenient, and data communication can be carried out in any time and unified phase angle checking is completed. The problem of unified initial phase angle check in the power grid is fundamentally solved.
The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. The on-line power frequency phase monitoring device is used for measuring the phases of a plurality of test points and is characterized by comprising a phase monitoring base station, a plurality of phase collectors, a plurality of phase monitoring communication machines and a plurality of solar modules, wherein the plurality of phase collectors are in communication connection with the plurality of phase monitoring communication machines in a one-to-one correspondence manner and are used for collecting voltage data and phase information of the plurality of test points and transmitting the voltage data and the phase information to the phase monitoring communication machines, the phase collectors are powered by lithium batteries, the plurality of solar modules are in communication connection with the plurality of phase monitoring communication machines in a one-to-one correspondence manner so as to supply power to the plurality of phase monitoring communication machines, and the phase monitoring base station is powered by AC 220V;
each phase monitoring communication machine comprises a first controller, a first voltage module, a first GPS satellite antenna, a first communication module and a phase checking module, wherein the first voltage module is connected with the first controller and used for receiving voltage data and phase information and transmitting the voltage data and the phase information to the first controller, the first GPS satellite antenna is connected with the first controller and used for collecting GPS second time information and transmitting the GPS second time information to the first controller, the first communication module is connected with the first controller and is in communication connection with the phase monitoring base station and used for transmitting the GPS second time information, the voltage data and the phase information to the phase monitoring base station, and the phase checking module is connected with the first controller and used for checking the phase information.
2. The on-line power frequency phase monitoring device according to claim 1, wherein the phase collector comprises a collection module, a second controller and a second communication module, the collection module is connected with the second controller, and is used for collecting the voltage data of the test point and the GPS second time information and transmitting the voltage data and the GPS second time information to the second controller, the second controller is connected with the second communication module, and the second communication module is connected with the first voltage module in a communication manner.
3. The on-line power frequency phase monitoring device of claim 2, wherein the second communication module is a bluetooth communication module.
4. The on-line power frequency phase monitoring device according to claim 1, wherein the phase monitoring base station comprises a phase monitoring base station host, a base station collector, a second GPS satellite antenna, a high-precision clock circuit and a third communication module, the base station collector is in communication connection with the phase monitoring base station host and is used for collecting standard phase information and transmitting the standard phase information to the phase monitoring base station host, the phase monitoring base station host is connected with the third communication module, the third communication module is in communication connection with the first communication module so as to acquire the voltage data, the phase information and the GPS second time information, and the second GPS satellite antenna and the high-precision clock circuit are both connected with the phase monitoring base station host.
5. The on-line power frequency phase monitoring device of claim 4, wherein the phase monitoring base station further comprises a resistive touch screen, the resistive touch screen being connected to the phase monitoring base station host for displaying the standard phase information.
6. The on-line power frequency phase monitoring device of claim 4, wherein the third communication module is a 4G cell phone network communication module.
7. The on-line power frequency phase monitoring device of claim 1, wherein the solar module comprises a solar panel, a charge-discharge controller, an inversion output mechanism and a storage battery, the solar panel is connected with the charge-discharge controller, the charge-discharge controller is connected with the storage battery to control the solar panel to charge the storage battery, the charge-discharge controller is further connected with the inversion output mechanism to control the storage battery to discharge through the inversion output mechanism, and the inversion output mechanism is connected with the phase monitoring communication machine to supply power to the phase monitoring communication machine.
8. The on-line power frequency phase monitoring device of claim 7, wherein the inverter output mechanism comprises a DC/AC inverter and a transformer, the DC/AC inverter is connected in series with the transformer, and the DC/AC inverter is connected with the charge-discharge controller, and the transformer is connected with the phase monitoring tie.
9. The on-line power frequency phase monitoring device of any one of claims 1-8, wherein the first communication module is a wireless bluetooth communication module.
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| CN110095662A (en) * | 2019-05-05 | 2019-08-06 | 武汉四维恒通科技有限公司 | A kind of method, apparatus and storage medium of wireless high-voltage nuclear phase |
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