CN108988481B - Power supply's management device - Google Patents
Power supply's management device Download PDFInfo
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- CN108988481B CN108988481B CN201810739289.7A CN201810739289A CN108988481B CN 108988481 B CN108988481 B CN 108988481B CN 201810739289 A CN201810739289 A CN 201810739289A CN 108988481 B CN108988481 B CN 108988481B
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- 238000012544 monitoring process Methods 0.000 claims abstract description 151
- 238000004891 communication Methods 0.000 claims abstract description 79
- 238000010248 power generation Methods 0.000 claims description 59
- 230000005611 electricity Effects 0.000 claims description 21
- 230000002159 abnormal effect Effects 0.000 claims description 18
- 238000001514 detection method Methods 0.000 claims description 8
- 239000003921 oil Substances 0.000 description 166
- 238000010586 diagram Methods 0.000 description 4
- 238000012423 maintenance Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 230000005856 abnormality Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000010705 motor oil Substances 0.000 description 1
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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
- H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
- H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
- H02J9/06—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems
- H02J9/08—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems requiring starting of a prime-mover
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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
- H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
- H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
- H02J9/06—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems
- H02J9/068—Electronic means for switching from one power supply to another power supply, e.g. to avoid parallel connection
Abstract
The invention provides a management device of a power supply, relates to the technical field of communication, and solves the problems that false mains supply faults cannot be judged and the current power supply belongs to mains supply or is generated by an oil engine and is not managed on a power utilization side in the prior art, so that a person is caused to be false. The device comprises a voltage presence or absence acquisition module and an electric quantity monitoring module, wherein the voltage presence or absence acquisition module is arranged at two ends of a mains supply switch in parallel; the electric quantity monitoring module is used for acquiring whether the voltage is the response information sent by the acquisition module or not; the response information is used for indicating that the mains supply circuit is normal in power supply; the electric quantity monitoring module is also used for determining that the first switch is disconnected and the second switch is closed, and determining that the power supply is a mains supply circuit if the response information sent by the voltage acquisition module is received. The embodiment of the invention is used for managing the power supply.
Description
Technical Field
The invention relates to the technical field of communication, in particular to a management device of a power supply.
Background
In the communication field, a large number of unattended small stations exist, such as wireless communication base stations, transmission convergence stations and the like, because the stations are numerous and are distributed in positions, most of the small stations are not provided with fixed oil engines, when the mains supply is powered off, a maintenance company needs to manually carry a mobile generator to the relevant small stations for power generation, and the payment of the oil engine power generation cost of the maintenance company becomes a relatively large cost expenditure of a communication operator. Because the communication operator does not have enough personnel to supervise on site, the generation time of the agent company, whether the power is generated really or not, whether the power is generated by an oil engine when the commercial power is normal or not, and the like; therefore, how to determine whether the power is supplied by the commercial power or generated by the oil engine becomes an urgent problem to be solved.
In view of the above problems, there are many technical solutions in this respect, and there are mainly the following combinations:
1. the power management device is arranged on the oil engine and used for managing whether the oil engine generates power or not and metering the generated power.
2. The position of the oil engine is wirelessly transmitted to a monitoring center by adopting a wireless Positioning technology (such as a Global Positioning System (GPS) for short), and whether the oil engine is actually on a station is checked; or the fuel engine adopts a wireless communication mode (such as Bluetooth) with the communication station to position.
3. The distribution box of the small-sized station adopts two electric meters to respectively meter the electricity generated by the oil engine and the electricity consumption of the commercial power.
4. The small-sized station distribution box adopts an ammeter, and judges whether the power is supplied by commercial power or by an oil engine in a mode of managing two paths of input voltage.
5. Analyzing the power supply quality waveform and detecting the liquid level of the oil engine oil tank to judge whether the oil engine generates electricity or the commercial power generates electricity.
The above solution has the following problems:
1. even if the oil engine is used in a positioning and matching manner with the oil engine during power generation, the generated energy is only measured on the oil engine, and the oil engine is not necessarily used for supplying power to a communication station in a whole manner during power generation, so that a leak exists.
2. In part of schemes, an oil engine and a communication station wireless communication mode (such as Bluetooth) is adopted to position whether the oil engine reaches the communication station, and due to the fact that the communication distance is limited, the actual requirements cannot be met. If many remote base stations are located on the mountain, the oil engine generates electricity under the mountain, and the cable distributed to the top of the mountain is used for supplying power to the communication station, so that the distance is long. In addition, if GPS positioning is adopted daily, the problem of using direct current power supply to supply power daily exists, an oil engine is needed to start the battery to supply power, and long-time low-current discharge is not beneficial to the service life of the battery.
3. The communication station adopts two electric meters for metering, the cost is high, and the current scheme does not relate to how to judge the abnormal power generation of the oil engine, namely, a cable is arranged from a commercial power end outside the communication station to an indoor mobile oil engine interface, and meanwhile, the commercial power in the communication station is disconnected, and the oil engine is inflated to generate power.
4. Part of the schemes adopt an ammeter, only a mode of measuring two paths of input voltages of the mains supply and the oil engine is used, a real power supply end cannot be accurately judged, and how to judge abnormal power generation is not involved.
5. The high-quality oil engine voltage waveform is also good, and the oil tank liquid level can be considered to be operation, and all these have judgment errors.
Except for the lack of technical consideration, the common problems of the existing schemes and patents are that the actual maintenance is not solved, the judgment is only carried out according to normal logic, the abnormal power generation of an oil engine is not considered, and if the commercial power is normal, the oil engine is still used for generating power to earn the power generation cost; removing the commercial power connection to cause a power failure false image, and generating power by using an oil engine; metering the oil engine power generation at the oil engine side, wherein the oil engine power generation is not completely supplied to a communication station for use; even the mains supply of the distribution box is disconnected, and the mains supply is led to an oil engine interface of the distribution box and the like. Without comprehensive judgment, it is difficult to determine whether a long-term, fixed power theft is outside the communication station or whether a temporary power theft is a problem.
Therefore, the problems that false mains supply faults exist in the prior art, and whether the current power supply belongs to the mains supply or generates power cannot be managed on the power utilization side, so that the power supply can be artificially fake are solved.
Disclosure of Invention
The embodiment of the invention provides a management device of a power supply, which solves the problems that false mains supply faults exist in the prior art, and the current power supply cannot be managed on a power utilization side to be mains supply or power generation, so that the current power supply can be artificially false.
In order to achieve the above purpose, the embodiment of the invention adopts the following technical scheme:
in a first aspect, an embodiment of the present invention provides a management device for a power supply, which is applied to a power supply system, where the power supply system at least includes: interlocking device, interlocking device include first switch and second switch, and first switch and second switch can not open simultaneously or be closed, and mains switch passes through first switch and is connected with the load, and the oil machine passes through the second switch and is connected with the load, and mains circuit passes through mains switch and is connected with first switch, includes: the voltage presence and absence acquisition module is arranged at two ends of the mains supply switch in parallel, and the electric quantity monitoring module is connected with the input end of the first switch; the electric quantity monitoring module is used for acquiring whether the voltage is the response information sent by the acquisition module or not; the response information is used for indicating that the mains supply circuit is normal in power supply; the electric quantity monitoring module is also used for determining that the first switch is disconnected and the second switch is closed, and determining that the power supply is a mains supply circuit if the response information sent by the voltage acquisition module is received.
Optionally, the electric quantity monitoring module is further configured to determine that the power supply supplies power to the mains supply circuit if the voltage has the response information sent by the voltage acquisition module when the first switch is turned on and the second switch is turned off.
Optionally, the management device of the power supply further includes: the oil engine information module is fixed on the oil engine; the oil engine information module is used for determining that the oil engine sends a connection request to the electric quantity monitoring module when being started; wherein the connection request includes: numbering the oil engines; the electric quantity monitoring module is further used for determining that the first switch is disconnected and the second switch is closed, and determining that the power supply supplies power to the oil engine if the response information sent by the voltage presence/absence acquisition module is not received, the current is not detected at the input end of the first switch, the voltage is not detected at the input end of the first switch, and the connection request sent by the oil engine information module is received.
Optionally, the management device of the power supply further includes: the system comprises an electric quantity acquisition module and a communication module; the first switch is connected with the load through the electric quantity acquisition module, and the second switch is connected with the load through the electric quantity acquisition module; the electric quantity acquisition module is used for acquiring monitoring information of the electric quantity; the electric quantity monitoring module is further used for determining whether the first switch is disconnected and the second switch is closed, and if the response information sent by the voltage presence acquisition module is not received, the current is not detected at the input end of the first switch, the voltage is not detected at the input end of the first switch and the connection request sent by the oil engine information module is received, generating oil engine power supply starting information according to the currently acquired electricity consumption monitoring information of the electric quantity acquisition module; wherein, the oil engine power supply start information at least comprises one or more of the following items: the serial number of the oil engine, the first current time and the first electric quantity monitoring information; the electric quantity monitoring module is also used for determining whether the first switch is disconnected and the second switch is closed, if the response information sent by the voltage acquisition module is not received, the current is not detected at the input end of the first switch, the voltage is not detected at the input end of the first switch and the connection request sent by the oil engine information module is received, and if the electric quantity acquisition module does not acquire the electricity consumption monitoring information, generating oil engine power supply stop information according to the electricity consumption monitoring information currently acquired by the electric quantity acquisition module; wherein, the oil engine power supply stop information at least includes one or more of the following: the serial number of the oil engine, the second current time and the second electric quantity monitoring information; the electric quantity monitoring module is also used for determining the power generation duration and the power generation amount of the oil engine according to the oil engine power supply starting information and the oil engine power supply stopping information; and the communication module is used for sending the power generation duration and the power generation amount of the oil engine determined by the power monitoring module to a third-party terminal.
Optionally, the management device of the power supply further includes: the system comprises an electric quantity acquisition module and a communication module; the first switch is connected with the load through the electric quantity acquisition module, and the second switch is connected with the load through the electric quantity acquisition module; the electric quantity acquisition module is used for acquiring monitoring information of the electric quantity; the electric quantity monitoring module is further used for determining whether the first switch is disconnected and the second switch is closed, and if the response information sent by the voltage presence acquisition module is not received, the current is not detected at the input end of the first switch, the voltage is not detected at the input end of the first switch and the connection request sent by the oil engine information module is received, generating oil engine power supply starting information according to the currently acquired electricity consumption monitoring information of the electric quantity acquisition module; wherein, the oil engine power supply start information at least comprises one or more of the following items: the serial number of the oil engine, the first current time and the first electric quantity monitoring information; the electric quantity monitoring module is further used for determining whether the first switch is disconnected and the second switch is closed, and generating first alarm information and oil engine power supply stop information if the first switch is not detected with current and the first switch is not detected with voltage and the oil engine information module is connected after the response information sent by the voltage presence and absence acquisition module is not received and the voltage is not detected at the input end of the first switch and the connection request sent by the oil engine information module is received; the first alarm information is used for indicating that the electricity generation of the oil engine is changed into the power supply of the commercial power circuit; the oil engine power supply stop information at least comprises one or more of the following items: the serial number of the oil engine, the second current time and the second electric quantity monitoring information; the electric quantity monitoring module is also used for determining the power generation duration and the power generation amount of the oil engine according to the oil engine power supply starting information and the oil engine power supply stopping information; and the communication module is used for sending the first warning information generated by the electric quantity monitoring module and the generated time and the generated energy of the oil engine determined by the electric quantity monitoring module to a third party terminal.
Optionally, the electric quantity monitoring module and the voltage presence or absence acquisition module are communicated in a power carrier mode; the electric quantity monitoring module and the oil engine information module are communicated in a power carrier mode; the electric quantity monitoring module acquires the electricity consumption monitoring information of the electric quantity acquisition module through the detection line.
Optionally, the electric quantity acquisition module is further configured to acquire a first electric signal input by the mains supply circuit through the first switch; the electric quantity monitoring module is also used for determining whether the commercial power circuit is abnormal or not according to the first electric signal acquired by the electric quantity acquisition module; when the commercial power circuit is determined to be abnormal, generating second alarm information; the communication module is used for sending the second alarm information generated by the electric quantity monitoring module to a third party terminal; or the electric quantity acquisition module is also used for acquiring a second electric signal input by the oil engine through a second switch; the electric quantity monitoring module is also used for determining whether the oil engine is abnormal or not according to the second electric signal acquired by the electric quantity acquisition module; when the oil engine is determined to be abnormal, generating third alarm information; and the communication module is used for sending the third alarm information generated by the electric quantity monitoring module to a third party terminal.
Optionally, the management device of the power supply further includes: a communication module; the electric quantity monitoring module is also used for generating fourth alarm information when the input end of the first switch is determined to be powered off in sequence; the electric quantity monitoring module is also used for generating fourth alarm information when the input end of the first switch is sequentially electrified; the communication module is used for sending the second warning information generated by the electric quantity monitoring module or the third warning information generated by the electric quantity monitoring module to a third party terminal; and the second alarm information is used for indicating that the first switch is abnormal.
As can be seen from the above, in a normal situation, when the first switch is turned off and the second switch is turned off (mains supply failure), it indicates that the mains supply circuit may have a power failure, and the power supply supplies power to the oil engine; however, in practical applications, a power supply line of the mains supply circuit is connected to a power supply line of the oil engine, and in order to more accurately distinguish whether the mains supply circuit has a power failure, according to the management device of the power supply provided by the embodiment of the invention, the electric quantity monitoring module obtains the response information of whether the voltage is acquired or not by the acquisition module, so that whether the mains supply circuit supplies power normally can be known; therefore, when the electric quantity monitoring module determines that the first switch is switched off and the second switch is switched off, if response information (indicating that the power supply of the mains circuit is normal) is received, the current power supply is the mains circuit and is not a mains fault, so that the problem of false mains fault is avoided, and the problems that false mains fault exists in the prior art, and the current power supply cannot be managed on the power utilization side to belong to the mains or generate power, so that the current power supply can be artificially false are solved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a power supply system of a small and medium-sized communication station in the prior art;
fig. 2 is a schematic structural diagram of a management apparatus for a power supply according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a management device of a power supply source installed in a power supply system according to an embodiment of the present invention.
Reference numerals:
a management device-10 of the power supply;
an electric quantity monitoring module-101; a voltage presence/absence acquisition module-102; an oil engine information module-103;
an electric quantity acquisition module-104; a communication module-105.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
For the convenience of clearly describing the technical solutions of the embodiments of the present invention, in the embodiments of the present invention, the words "first", "second", and the like are used for distinguishing the same items or similar items with basically the same functions and actions, and those skilled in the art can understand that the words "first", "second", and the like are not limited in number or execution order.
It should be noted that, in the embodiments of the present invention, words such as "exemplary" or "for example" are used to indicate examples, illustrations or explanations. Any embodiment or design described as "exemplary" or "e.g.," an embodiment of the present invention is not necessarily to be construed as preferred or advantageous over other embodiments or designs. Rather, use of the word "exemplary" or "such as" is intended to present concepts related in a concrete fashion.
In practical applications, as shown in fig. 1, which is a schematic diagram of a power supply system of a small-sized communication station, there is a dedicated power supply switch (referred to as a mains switch herein) after a main power supply or a dedicated 10kV power supply transformer. The dotted line box is the part of the distribution box in the small communication station, and the block is provided with a commercial power/oil engine Switch input interlocking device, and the interlocking device is a Manual Transfer Switch (MTS) unless the individual needs, and needs to be manually operated on site. When power is cut off by an owner or a special 10kV power supply transformer, an oil engine is moved to a station, an interface (namely, an input end of a second switch connected with a linkage device) connected to the oil engine generates power, and a first switch of the linkage device is manually switched to a second switch (the first switch is opened and the second switch is closed) to supply power to an oil engine end; and when the power is supplied by the owner or the special 10kV power supply transformer is powered on, the oil engine is stopped to generate power, and the power is manually switched to the commercial power end to supply power.
As the power supply system provided in fig. 1 has a false mains supply fault, that is, the power supply of the owner or the dedicated 10kV power supply transformer has no power failure, and the first switch of the interlocking device is manually switched to the second switch, the false mains supply fault is caused to pay the power generation cost of the oil engine additionally, which results in higher operation and maintenance cost; because the current power supply can not be managed on the power utilization side as whether the current power supply belongs to a mains supply circuit or an oil engine, the authenticity of the power generation data of the oil engine can not be ensured; therefore, how to determine whether the power supply belongs to a mains supply circuit or an oil engine becomes a problem to be solved; in order to solve the above problem, an embodiment of the present invention provides a management device for a power supply, which can determine whether the power supply belongs to a mains circuit or an oil engine, and the specific implementation manner is as follows:
an embodiment of the present invention provides a management apparatus 10 for a power supply, which is applied to a power supply system shown in fig. 1 as shown in fig. 2, where the power supply system at least includes:
the interlocking device 20, the interlocking device 20 includes first switch 201 and second switch 202, and first switch 201 and second switch 202 can not open or close simultaneously, and the utility power switch 30 is connected with load 40 through first switch 201, and the oil engine 50 is connected with load 40 through second switch 202, and the utility power circuit passes through the utility power switch 30 and is connected with first switch 201, includes:
the voltage presence and absence acquisition module 102 is installed at two ends of the mains switch 30 in parallel, and the electric quantity monitoring module 101 is connected with the input end of the first switch 201.
It should be noted that the power monitoring module 101 has Analog Input (AI for short) and switching value Input (DI for short), and has a clock circuit for providing time for the management device of the power supply; meanwhile, the presence or absence of the voltage and the current at the input end of the first switch and the three-phase voltage and the three-phase current of the electric quantity acquisition module 104 are detected, and the electricity consumption monitoring information is calculated.
The voltage presence/absence acquisition module 102 has a function of switching value Input (DI), and detects presence/absence of voltage at the Input end of the mains switch.
Optionally, the electric quantity monitoring module 101 communicates with the voltage presence or absence acquisition module 102 in a power carrier communication manner; the electric quantity monitoring module 101 and the oil engine information module 103 are communicated in a power carrier mode; the electric quantity monitoring module 101 acquires the electricity consumption monitoring information of the electric quantity acquisition module 104 through the detection line.
Power Line Communication (PLC) is a Communication system specific to a Power system, and is a technology for transmitting analog or digital signals at high speed by a carrier system using an existing Power line. The method has the greatest characteristic that data transmission can be carried out only by wires without erecting a network again.
As shown in fig. 3, a solid line from the voltage presence/absence acquisition module to the upper end of the utility power switch represents a working power line and can be used as a voltage presence/absence detection line, and a dotted line represents a communication line; dotted lines from the electric quantity monitoring module to the upper end of the first switch represent a voltage detection line and a current detection line, and solid lines between the electric quantity monitoring module and the electric quantity acquisition module represent a three-phase voltage detection line and a three-phase current detection line; the voltage acquisition modules are arranged at two ends of the mains switch (a power line of the voltage acquisition module is connected with the input end of the mains switch, and a communication line of the voltage acquisition module is connected with the output end of the mains switch); the voltage presence and absence acquisition module is powered by a mains supply circuit, and the electric quantity monitoring module is communicated with the voltage presence and absence acquisition module in a power carrier mode; therefore, when the commercial power switch is disconnected, the voltage acquisition module can still normally work due to the fact that power supply of an owner or a special 10kV power supply transformer is not stopped; and because the power carrier communication is adopted, the communication between the electric quantity monitoring module and the voltage acquisition module can be normally carried out (the first switch is closed and the second switch is opened) even if the commercial power switch is disconnected.
The electric quantity monitoring module 101 is used for acquiring whether the voltage is the response information sent by the acquisition module 102; and the response information is used for indicating that the power supply of the mains supply circuit is normal.
It should be noted that, in practical applications, the voltage presence/absence acquisition module may periodically report response information to the electric quantity monitoring module, and when the electric quantity monitoring module can periodically receive the response information, it is indicated that the power supply of the mains supply circuit is normal; when the electric quantity monitoring module receives the response information in the last period and does not receive the response information in the current period all the time, the power failure of the mains supply circuit is indicated; or the electric quantity monitoring module periodically sends a communication instruction to the voltage presence or absence acquisition module, the voltage presence or absence acquisition module sends response information to the electric quantity monitoring module according to the communication instruction, and when the electric quantity monitoring module can receive the response information in each period, the power supply of the commercial power circuit is normal; when the electric quantity monitoring module receives the response information in the last period and does not receive the response information in the current period all the time, the power failure of the mains supply circuit is indicated; specifically, the electric quantity monitoring module has a plurality of implementation manners for acquiring whether the voltage is the response information sent by the acquisition module, and details are not repeated here.
Specifically, if the place of the main input end of the mains circuit is not effectively managed in actual application, the place belongs to a place convenient for artificial power failure, and an electric quantity monitoring module is correspondingly installed for monitoring, so that the problem that the mains switch of the mains circuit is artificially disconnected and false mains faults occur is prevented.
The electric quantity monitoring module 101 is further configured to determine that the power supply is a mains supply circuit if the voltage receiving module 102 receives the response information sent when the first switch 201 is turned off and the second switch 202 is turned on.
Optionally, the electric quantity monitoring module 101 is further configured to determine that the power supply supplies power to the mains supply circuit when the first switch 201 is closed and the second switch 202 is open and when the voltage is received and whether the response information sent by the voltage acquisition module 102 exists is received.
Optionally, the management device of the power supply further includes: an oil engine information module 103 fixed to the oil engine 50; the oil engine information module 103 is configured to determine that a connection request is sent to the electric quantity monitoring module 101 when the oil engine 50 is started; wherein the connection request includes: and numbering of the oil engines.
It should be noted that, in practical applications, the oil engine information module 103 is composed of a power line carrier communication unit; after receiving the connection request, the electric quantity monitoring module reports the serial number of the oil engine to the monitoring center; the monitoring center can read the equipment management information such as the brand, the model, the factory time, the working power generation duration and the like of the oil engine according to the serial number of the oil engine, so that the monitoring center can perform whole-course monitoring and prevent power generation data from being forged when the oil engine generates power every time.
The electric quantity monitoring module 101 is further configured to determine that the power supply supplies power to the oil engine if the response information sent by the voltage presence/absence acquisition module 102 is not received, no current is detected at the input end of the first switch 201, no voltage is detected at the input end of the first switch 201, and a connection request sent by the oil engine information module 103 is received when the first switch 201 is opened and the second switch 202 is closed.
It should be noted that, in practical applications, the oil engine information module is fixed on the mobile oil engine by adopting an anti-disassembly measure, and the working power supply is taken from the power generation port of the oil engine.
When the oil engine is connected to the input end of the second switch of the interlocking device and starts to generate electricity, the oil engine information module is electrified to work, and the oil engine information module and the electric quantity monitoring module are communicated in a power carrier mode; therefore, the oil engine information module can actively initiate communication by using a power cable laid between the oil engine and the second switch and between the second switch and the load, so as to establish communication with the electric quantity monitoring module in the base station; when the oil engine information module initiates communication, a connection request needs to be initiated to the electric quantity monitoring module, and the connection request carries the serial number of the oil engine fixed by the oil engine information module, so that subsequent power consumption management is facilitated.
The electric quantity monitoring module generates oil engine power supply starting information after receiving the connection request sent by the oil engine information module; in order to manage the power generation data of the oil engine more finely and prevent the power generation data from being falsified when judging the power generation duration and the power generation amount of the oil engine, embodiments of the present invention provide the following two implementation manners:
in a first aspect, the power supply management device further includes: an electric quantity acquisition module 104 and a communication module 105; the first switch 201 is connected to the load 40 through the power collection module 104, and the second switch 202 is connected to the load 40 through the power collection module 104.
It should be noted that in actual application, the electric quantity acquisition module can be an external mutual inductor, so that the electric quantity acquisition module is suitable for newly building a distribution box and transforming an original distribution box, and is convenient for field operation; specifically, the electric quantity acquisition module 104 is composed of a three-phase current transformer and has a three-phase voltage acquisition signal line, and the transformer and the voltage acquisition signal line are both output to the electric quantity monitoring module 101.
Specifically, in practical applications, the communication module includes: the power line carrier communication interface and the northbound communication interface; the power carrier communication interface is used for being connected with a communication line of the voltage presence acquisition module; the northbound communication interface may include: the serial port (RS232 or RS485/422), the RJ45 network interface or other field bus interfaces and the like transmit the power supply, the alarm information, the power generation duration and the power generation amount of the oil engine determined by the management device of the power supply to the third party terminal; the third-party terminal can be a superior monitoring network, a monitoring center, a mobile phone, a computer, a tablet computer and other terminals capable of checking and receiving data.
Specifically, in order to facilitate the operation of field personnel, the management device for the power supply provided by the embodiment of the invention further comprises a liquid crystal display and a field operation button, so that various parameters can be conveniently checked and set on the field.
The electric quantity acquisition module 104 is used for acquiring monitoring information of the electric quantity; the power monitoring information includes voltage information and current information.
The electric quantity monitoring module 101 is further configured to, when it is determined that the first switch 201 is turned off and the second switch 202 is turned on, generate the oil engine power supply start information according to the currently acquired electric quantity monitoring information of the electric quantity acquisition module 104 if the response information sent by the voltage presence/absence acquisition module 102 is not received, no current is detected at the input end of the first switch 201, no voltage is detected at the input end of the first switch 201, and a connection request sent by the oil engine information module 103 is received; wherein, the oil engine power supply start information at least comprises one or more of the following items: the serial number of the oil engine, the first current time and the first electric quantity monitoring information.
The electric quantity monitoring module 101 is further configured to, when it is determined that the first switch 201 is turned off and the second switch 202 is turned on, generate the oil engine power supply stop information according to the currently acquired electric quantity monitoring information of the electric quantity acquisition module 104 if the response information sent by the voltage presence/absence acquisition module 102 is not received, the current is not detected at the input end of the first switch 201, the voltage is not detected at the input end of the first switch 201, and the connection request sent by the oil engine information module 103 is received, and after the electric quantity acquisition module 104 does not acquire the electric quantity monitoring information; wherein, the oil engine power supply stop information at least includes one or more of the following: the serial number of the oil engine, the second current time and the second electric quantity monitoring information.
The electric quantity monitoring module 101 is further configured to determine the power generation duration and the power generation amount of the oil engine according to the oil engine power supply start information and the oil engine power supply stop information.
And the communication module 105 is configured to send the power generation duration and the power generation amount of the oil engine determined by the power monitoring module 101 to a third party terminal.
It should be noted that, in practical application, because each small-sized communication station is provided with an independent-48V storage battery pack for supplying power to communication equipment, the power can be continuously supplied for 2-4 hours after the power failure of the communication station; therefore, if the power failure occurs in a large area and a long time, the storage battery pack can ensure that the small communication stations can normally operate within a certain time, and in order not to influence the normal use of each small communication station, the oil engine is required to sequentially supply power to each small communication station; namely, after the oil engine supplies power for the small-sized communication station for a certain time, the switching power supply equipment in the station converts the alternating current of the oil engine into direct current, and after the storage battery pack is fully charged, the oil engine needs to move to other small-sized communication stations to continuously supply power for the other small-sized communication stations; therefore, the electric quantity monitoring module is further configured to determine that when the first switch is turned off and the second switch is turned off, if the response information sent by the voltage presence/absence acquisition module is not received, the current is not detected at the input end of the first switch, the voltage is not detected at the input end of the first switch, and the connection request sent by the oil engine information module is received, and after the electric quantity acquisition module does not acquire the electricity consumption monitoring information, generate electricity supply stop information according to the electricity consumption monitoring information currently acquired by the electricity quantity acquisition module; because the electric quantity acquisition module is connected between the first switch and the load in series and the electric quantity acquisition module is connected between the second switch and the load in series, when the oil engine stops supplying power, no signal is input to the input end of the electric quantity acquisition module, namely, the electric quantity acquisition module cannot acquire power consumption monitoring information (the power consumption monitoring information is not updated within the preset time), so that the power generation time and the power generation amount of the oil engine at this time can be accurately judged; meanwhile, the electric quantity acquisition module is connected between the first switch and the load in series, and the electric quantity acquisition module is connected between the second switch and the load in series, so that the problem of artificially modifying the power generation time and the generated energy data is solved.
In case two, the management device of the power supply further includes: an electric quantity acquisition module 104 and a communication module 105; the first switch 201 is connected to the load 40 through the power collection module 104, and the second switch 202 is connected to the load 40 through the power collection module 104.
And the electric quantity acquisition module 104 is used for acquiring the monitoring information of the electric quantity.
The electric quantity monitoring module 101 is further configured to, when it is determined that the first switch 201 is turned off and the second switch 202 is turned on, generate the oil engine power supply start information according to the currently acquired electric quantity monitoring information of the electric quantity acquisition module 104 if the response information sent by the voltage presence/absence acquisition module 102 is not received, no current is detected at the input end of the first switch 201, no voltage is detected at the input end of the first switch 201, and a connection request sent by the oil engine information module 103 is received; wherein, the oil engine power supply start information at least comprises one or more of the following items: the serial number of the oil engine, the first current time and the first electric quantity monitoring information.
The electric quantity monitoring module 101 is further configured to, when it is determined that the first switch 201 is open and the second switch 202 is closed, generate first warning information and oil engine power supply stop information if no response information sent by the voltage presence/absence acquisition module 102 is received, no current is detected at the input end of the first switch 201, no voltage is detected at the input end of the first switch 201, and a connection request sent by the oil engine information module 103 is received, and if no current is detected at the input end of the first switch 201 and a voltage is detected at the input end of the first switch 201; the first alarm information is used for indicating that the electricity generation of the oil engine is changed into the power supply of the commercial power circuit; the oil engine power supply stop information at least comprises one or more of the following items: the serial number of the oil engine, the second current time and the second electric quantity monitoring information.
The electric quantity monitoring module 101 is further configured to determine the power generation duration and the power generation amount of the oil engine according to the oil engine power supply start information and the oil engine power supply stop information.
The communication module 105 is configured to send the first warning information generated by the electric quantity monitoring module 101 and the generated time and the generated energy of the oil engine determined by the electric quantity monitoring module 101 to the third party terminal.
In practical applications, when the mains circuit supplies power normally, the interlock device needs to consider switching the current power supply under normal conditions; therefore, if the mains supply circuit supplies power normally, when the worker forgets to turn off the second switch of the interlocking device and turn off the first switch, and the oil engine is still used for supplying power at the moment, extra power generation cost is caused; therefore, the electric quantity monitoring module is further configured to, when the first switch is turned off and the second switch is turned off, generate first warning information and oil engine power supply stop information if no response information sent by the voltage presence/absence acquisition module is received, no current is detected at the input end of the first switch, no voltage is detected at the input end of the first switch, and a connection request sent by the oil engine information module is received, during oil engine power generation, no current is detected at the input end of the first switch, and a voltage is detected at the input end of the first switch; therefore, when the mains supply is determined to be normal, the alarm information and the oil engine power supply stop information are generated, the power supply site can be managed more accurately, and meanwhile, the data of the power generation duration and the power generation amount of the oil engine can be prevented from being modified manually.
Specifically, in order to facilitate management of workers, the data of the power generation duration and the power generation amount of the oil engine at each time can be sent to the oil engine information module, so that the field workers can record conveniently; meanwhile, the data of the power generation duration and the power generation amount of the oil engine at each time are sent to the monitoring center, so that the management in the future is facilitated.
For example, the historical records of the oil engine power generation (the data of the power generation duration and the power generation amount of the oil engine each time) can be dumped through an interface (such as a USB, RS232 or RJ45 network port) of the oil engine information module, so as to facilitate comparison with the data records of the monitoring center.
Specifically, after the power supply starting information of the oil engine is generated, the power supply information is updated by the power monitoring module at regular intervals, and after new power supply information is obtained each time, the new power supply information is covered with a piece of old power supply information; and after the final power generation is finished, only two records of power supply starting information and the last power supply information (oil engine power supply stopping information) are recorded in the power generation process, and the power generation time and the power generation amount can be calculated through the two records.
Optionally, the electric quantity collecting module 104 is further configured to collect a first electric signal input by the mains circuit through the first switch 201; the electric quantity monitoring module 101 is further configured to determine whether the mains supply circuit is abnormal according to the first electric signal acquired by the electric quantity acquisition module 104; when the commercial power circuit is determined to be abnormal, generating second alarm information; the communication module 105 is configured to send the second alarm information generated by the power monitoring module 101 to a third party terminal; or, the electric quantity collecting module 104 is further configured to collect a second electric signal input by the oil engine 50 through the second switch 202; the electric quantity monitoring module 101 is further configured to determine whether the oil engine 50 is abnormal according to the second electrical signal acquired by the electric quantity acquisition module 104; when the oil engine 50 is determined to be abnormal, generating third alarm information; and the communication module 105 is configured to send the third warning information generated by the power monitoring module 101 to a third party terminal.
It should be noted that, in practical applications, in order to ensure that the electrical signal output by the power supply (the utility power circuit or the oil engine) meets the use standard of the small communication station, it is necessary to detect the electrical signal output by the power supply (whether the voltage exceeds the preset voltage, and whether the frequency exceeds the preset frequency) and determine whether there is an abnormality; when the electric signal output by the power supply source appears, the load in the small communication station is easily damaged; therefore, the alarm information needs to be reported to the third party terminal, so that the staff can conveniently process the alarm information in time.
Optionally, the management device of the power supply further includes: a communication module 105; the electric quantity monitoring module 101 is further configured to generate fourth warning information when it is determined that the input end of the first switch 201 is powered off in sequence; the electric quantity monitoring module 101 is further configured to generate fourth warning information when determining that the input end of the first switch 201 is powered on in sequence; the communication module 105 is configured to send the second warning information generated by the electric quantity monitoring module 101 or send the third warning information generated by the electric quantity monitoring module 101 to a third party terminal; and the second alarm information is used for indicating that the first switch is abnormal.
It should be noted that, in practical applications, the distance between the first switch and the second switch of the interlock switch is small; therefore, when the first switch is turned off and the second switch is turned off, the cable of the mains supply circuit at the input end of the first switch is connected to the input end of the second switch, so that the oil engine power generation data is counterfeited; therefore, in order to prevent such an event, the embodiment of the present invention provides that the communication line of the power collection module is connected to each of the three phases (U-phase, V-phase, and W-phase) of the first switch, i.e., the power collection module is connected to the first switch through at least 3 communication lines, so that it can be detected whether the U-phase, V-phase, and W-phase at the input end of the first switch are sequentially powered off or whether the U-phase, V-phase, and W-phase are sequentially powered on.
As can be seen from the above, in a normal situation, when the first switch is turned off and the second switch is turned off (mains supply failure), it indicates that the mains supply circuit may have a power failure, and the power supply supplies power to the oil engine; however, in practical applications, a power supply line of the mains supply circuit is connected to a power supply line of the oil engine, and in order to more accurately distinguish whether the mains supply circuit has a power failure, according to the management device of the power supply provided by the embodiment of the invention, the electric quantity monitoring module obtains the response information of whether the voltage is acquired or not by the acquisition module, so that whether the mains supply circuit supplies power normally can be known; therefore, when the electric quantity monitoring module determines that the first switch is switched off and the second switch is switched off, if response information (indicating that the power supply of the mains circuit is normal) is received, the current power supply is the mains circuit and is not a mains fault, so that the problem of false mains fault is avoided, and the problems that false mains fault exists in the prior art, and the current power supply cannot be managed on the power utilization side to belong to the mains or generate power, so that the current power supply can be artificially false are solved.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.
Claims (6)
1. A management device of a power supply source is applied to a power supply system, and the power supply system at least comprises: interlocking device, interlocking device includes first switch and second switch, first switch with the second switch can not open simultaneously or be closed, and mains switch passes through first switch is connected with the load, and the oil engine passes through the second switch with the load is connected, and mains circuit passes through mains switch with first switch is connected, its characterized in that includes:
the voltage presence and absence acquisition module is arranged at two ends of the mains supply switch in parallel, and the electric quantity monitoring module is connected with the input end of the first switch;
the electric quantity monitoring module is used for acquiring the voltage and the existence of the response information sent by the voltage acquisition module; the response information is used for indicating that the mains supply circuit is normally powered;
the electric quantity monitoring module is further configured to determine that a power supply is the mains supply circuit if response information sent by the voltage acquisition module is received when the first switch is turned off and the second switch is turned off;
the electric quantity monitoring module is further configured to determine that a power supply supplies power to the mains supply circuit if response information sent by the voltage acquisition module is received when the first switch is turned on and the second switch is turned off;
the electric quantity monitoring module is further configured to determine that a power supply supplies power to the oil engine if the response information sent by the voltage presence/absence acquisition module is not received, no current is detected at the input end of the first switch, no voltage is detected at the input end of the first switch, and a connection request sent by the oil engine information module is received when the first switch is turned off and the second switch is turned on;
the oil engine information module is fixed on the oil engine; the oil engine information module is used for determining that the oil engine sends a connection request to the electric quantity monitoring module when being started; wherein the connection request comprises: and numbering of the oil engines.
2. The management device of the power supply according to claim 1, further comprising: the system comprises an electric quantity acquisition module and a communication module; the first switch is connected with the load through the electric quantity acquisition module, and the second switch is connected with the load through the electric quantity acquisition module;
the electric quantity acquisition module is used for acquiring monitoring information of the electric quantity;
the electric quantity monitoring module is also used for generating oil engine power supply starting information according to the power consumption monitoring information currently acquired by the electric quantity acquisition module when the power supply is determined to supply power to the oil engine; wherein, the oil engine power supply starting information at least comprises one or more of the following items: the serial number, the first current time and the first power consumption monitoring information of the oil engine;
the electric quantity monitoring module is also used for generating oil engine power supply stop information according to the power consumption monitoring information currently acquired by the electric quantity acquisition module after the power supply is determined to supply power to the oil engine and if the power consumption monitoring information is not acquired by the electric quantity acquisition module; wherein the oil engine power supply stop information at least comprises one or more of the following items: the serial number of the oil engine, the second current time and the second electric quantity monitoring information;
the electric quantity monitoring module is further used for determining the power generation duration and the power generation quantity of the oil engine according to the oil engine power supply starting information and the oil engine power supply stopping information;
and the communication module is used for sending the power generation duration and the power generation amount of the oil engine determined by the power monitoring module to a third party terminal.
3. The management device of the power supply according to claim 1, further comprising: the system comprises an electric quantity acquisition module and a communication module; the first switch is connected with the load through the electric quantity acquisition module, and the second switch is connected with the load through the electric quantity acquisition module;
the electric quantity acquisition module is used for acquiring monitoring information of the electric quantity;
the electric quantity monitoring module is also used for generating oil engine power supply starting information according to the power consumption monitoring information currently acquired by the electric quantity acquisition module when the power supply is determined to supply power to the oil engine; wherein, the oil engine power supply starting information at least comprises one or more of the following items: the serial number, the first current time and the first power consumption monitoring information of the oil engine;
the electric quantity monitoring module is further used for generating first alarm information and oil engine power supply stop information if no current is detected at the input end of the first switch and voltage is detected at the input end of the first switch after the power supply is determined to supply power to the oil engine; the first alarm information is used for indicating that the electricity generation of the oil engine is changed into the power supply of the commercial power circuit; the oil engine power supply stop information at least comprises one or more of the following items: the serial number of the oil engine, the second current time and the second electric quantity monitoring information;
the electric quantity monitoring module is further used for determining the power generation duration and the power generation quantity of the oil engine according to the oil engine power supply starting information and the oil engine power supply stopping information;
the communication module is used for sending the first warning information generated by the electric quantity monitoring module and the generated time and the generated energy of the oil engine determined by the electric quantity monitoring module to a third party terminal.
4. The management device of the power supply according to claim 2 or 3, wherein the power monitoring module communicates with the voltage acquisition module in a power carrier mode;
the electric quantity monitoring module and the oil engine information module are communicated in a power carrier mode;
the electric quantity monitoring module acquires the electricity consumption monitoring information of the electric quantity acquisition module through a detection line.
5. The management device of the power supply according to claim 2 or 3, wherein the electric quantity collection module is further configured to collect a first electric signal input by the mains circuit through the first switch;
the electric quantity monitoring module is also used for determining whether the commercial power circuit is abnormal or not according to the first electric signal acquired by the electric quantity acquisition module;
when the commercial power circuit is determined to be abnormal, generating second alarm information;
the communication module is used for sending the second warning information generated by the electric quantity monitoring module to a third party terminal;
alternatively, the first and second electrodes may be,
the electric quantity acquisition module is also used for acquiring a second electric signal input by the oil engine through the second switch;
the electric quantity monitoring module is also used for determining whether the oil engine is abnormal or not according to the second electric signal acquired by the electric quantity acquisition module;
when the oil engine is determined to be abnormal, generating third alarm information;
and the communication module is used for sending the third warning information generated by the electric quantity monitoring module to a third party terminal.
6. The management device of the power supply according to claim 5, further comprising: a communication module;
the electric quantity monitoring module is further used for generating fourth alarm information when the input end of the first switch is determined to be powered off in sequence;
the electric quantity monitoring module is further configured to generate fourth alarm information when the input end of the first switch is sequentially powered on;
the communication module is used for sending the second warning information generated by the electric quantity monitoring module or the third warning information generated by the electric quantity monitoring module to a third party terminal; wherein the second warning information is used for indicating that the first switch is abnormal.
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| CN105958639B (en) * | 2016-06-17 | 2019-02-01 | 江苏南自通华电力自动化股份有限公司 | Alternating current and hydro power generation type judgement method and its judge equipment |
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