CN110908360B - Communication power supply monitoring system and high-frequency switching power supply charging module self-checking method - Google Patents
Communication power supply monitoring system and high-frequency switching power supply charging module self-checking method Download PDFInfo
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- CN110908360B CN110908360B CN201911165357.4A CN201911165357A CN110908360B CN 110908360 B CN110908360 B CN 110908360B CN 201911165357 A CN201911165357 A CN 201911165357A CN 110908360 B CN110908360 B CN 110908360B
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B23/00—Testing or monitoring of control systems or parts thereof
- G05B23/02—Electric testing or monitoring
- G05B23/0205—Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults
- G05B23/0218—Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults characterised by the fault detection method dealing with either existing or incipient faults
- G05B23/0224—Process history based detection method, e.g. whereby history implies the availability of large amounts of data
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/20—Pc systems
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- G05B2219/24065—Real time diagnostics
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
- Y04S20/12—Energy storage units, uninterruptible power supply [UPS] systems or standby or emergency generators, e.g. in the last power distribution stages
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Abstract
The invention discloses a communication power supply monitoring system and a high-frequency switching power supply charging module self-checking method based on the same, wherein the system is additionally provided with a storage battery on-line monitoring and maintenance module, a control terminal and a storage battery charging and discharging control module on the existing communication power supply monitoring system; the storage battery online monitoring and maintaining module reads storage battery data of the communication power supply system and sends the storage battery data to the power supply comprehensive operation and maintenance server, and the control terminal reads the server data according to a user instruction and sends a storage battery operation instruction to the storage battery online monitoring and maintaining module through the server; the storage battery online monitoring and maintaining module controls the storage battery charging and discharging control module to carry out remote charging and discharging tests on the storage battery. According to the invention, the communication power supply in the transformer substation is connected to the power supply comprehensive operation and maintenance server, and technical maintenance personnel can know the real-time state of the communication power supply system and carry out remote charging and discharging tests of the storage battery through the control terminal, so that manual on-station inspection is not needed, the working efficiency is improved, and the investment of manpower and financial resources is reduced.
Description
Technical Field
The invention relates to the technical field of communication power supply system monitoring, in particular to a communication power supply monitoring system and a self-checking method of a high-frequency switch power supply charging module.
Background
The communication power system is generally called as the heart of the communication system, and the abnormal operation of the communication power system can cause the fault of the communication system and even cause the interruption of channels of relay protection, stability, automation and the like of a transformer substation, thereby causing a serious grid accident event. The communication power supply is used as an important component of a communication power supply system, and in the operation process, an alternating current power supply is inverted into a direct current 48V to supply power to communication equipment in a machine room, so that the healthy and safe operation of the communication power supply is particularly critical.
Because the communication power supply system generally comprises an alternating current mutual-throw device, a high-frequency rectifier module, a storage battery pack, a load and the like, each module of the communication equipment needs to be monitored, so that the measured data are very much, and data analysis, particularly historical comparison analysis and mutual comparison analysis of various data become necessary, however, the traditional monitoring mode returns 3-4 signals through a dry node mode and almost does not perform comparison analysis, so that the monitoring of the state of the communication power supply is not comprehensive enough, and fault early warning cannot be realized. On the other hand, the communication storage battery pack needs to be tested on site when being subjected to one-time charging and discharging test, the maximum discharging current is generally 20A, a large amount of time is consumed for one-time test, and the test period is too long.
Disclosure of Invention
The invention aims to provide a communication power supply monitoring system and a high-frequency switch power supply charging module self-checking method based on the system, the system enables a communication power supply in a transformer substation to be connected into a power supply comprehensive operation and maintenance server, technical maintenance personnel can know the real-time state of the communication power supply system through a control terminal without manual work for on-site inspection, the working efficiency of the operation and maintenance personnel is greatly improved, the investment of manpower and financial resources is reduced, and the problems that in the prior art, a remote communication storage battery pack needs to be tested on site for one-time charging and discharging test, a large amount of time is consumed for one-time test, and the test period is too long are solved.
The invention is realized by the following technical scheme:
the utility model provides a communication power supply monitored control system, is including laying at the information acquisition equipment and the local data processing system of communication power supply system end, laying at the comprehensive operation and maintenance server of power at remote monitoring center, wherein:
the information acquisition equipment is used for acquiring communication power supply data in the communication power supply system;
the local data processing system is used for accessing the information acquisition equipment to a network, receiving communication power supply data acquired by the information acquisition equipment and sending the communication power supply data to the power supply comprehensive operation and maintenance server;
the power supply comprehensive operation and maintenance server is used for analyzing and presenting the communication power supply data;
still include battery on-line monitoring maintenance module, control terminal and battery charge and discharge control module, wherein:
the storage battery online monitoring and maintaining module is used for reading storage battery data of the communication power supply system, sending the storage battery data to the power supply comprehensive operation and maintenance server through the local data processing system, forwarding the storage battery data to the storage battery charging and discharging control module when receiving an operation instruction of the storage battery, and controlling the storage battery charging and discharging control module to perform remote charging and discharging tests;
the control terminal can be communicated with the power supply comprehensive operation and maintenance server, is used for receiving a user instruction and sending the received user instruction to the power supply comprehensive operation and maintenance server, calling communication power supply data and/or storage battery data of a communication power supply system from the power supply comprehensive operation and maintenance server according to the user instruction and displaying the communication power supply data and/or the storage battery data to a user, and sending an operation instruction to the power supply comprehensive operation and maintenance server, wherein the operation instruction comprises a storage battery operation instruction; the power supply comprehensive operation and maintenance server also sends the received storage battery operation instruction to the storage battery online monitoring and maintenance module through the local data processing system;
and the storage battery charging and discharging control module is used for carrying out remote charging and discharging tests on the storage battery according to the received storage battery operation instruction.
On the basis of a communication power supply monitoring system in the prior art, the invention is additionally provided with a storage battery online monitoring maintenance module, a control terminal and a storage battery charging and discharging control module, wherein the control terminal can be in remote communication with a power supply comprehensive operation and maintenance server, remotely checks communication power supply data and/or storage battery data and displays the communication power supply data and/or the storage battery data to a user (an operator), sends a storage battery operation instruction to the storage battery online monitoring maintenance module through the power supply comprehensive operation and maintenance server, controls the storage battery charging and discharging control module to work, carries out remote charging and discharging test on a remote storage battery, and records information of each storage battery pack, so that the charging and discharging frequency of the storage battery pack is improved, and the charging and discharging cost is greatly reduced; technical maintenance personnel accessible control terminal knows communication power supply system's real-time status, need not the manual work and then patrols and examines on the station, very big improvement fortune dimension staff's work efficiency and reduced the input of manpower and financial resources.
Further, the local data processing system is a network communication device, preferably a switch.
Further, the local data processing system includes a local server and a network communication device; the local server is connected with the power supply comprehensive operation and maintenance server through network communication equipment; the local server is connected with the information acquisition device, the storage battery monitoring device and the storage battery charging and discharging control module, receives data acquired by the information acquisition device and the storage battery monitoring device, and sends storage battery operation instructions to the storage battery charging and discharging control module. The local server in this embodiment can play a role in data transfer, and can further increase a data processing function, thereby relieving the data preprocessing pressure of the power supply comprehensive operation and maintenance server.
As a further improvement of the present invention, the storage battery charging and discharging control module includes a rectifier, a storage battery capacity testing module, and an ac detection control module, the ac detection control module includes a diode and a dc contactor, the dc contactor has three contacts, which are a contact a, a contact B, and a contact C, respectively, wherein the positive electrode of the storage battery is connected to the positive electrode of the diode and the contact a, the rectifier is connected between the negative electrode of the diode and the negative electrode of the storage battery, the storage battery capacity testing module is connected between the contact C and the negative electrode of the storage battery, and the contact B is connected to the negative electrode of the diode. The storage battery charging and discharging control module is improved in the scheme, the direct current contactor of the storage battery is connected with the storage battery online monitoring and maintenance module, when the storage battery online monitoring and maintenance module works normally, the direct current contactor inside the storage battery online monitoring and maintenance module is in a normally closed node under the control of the storage battery online monitoring and maintenance module, namely, the node A and the node B are in a communicated state, and at the moment, the storage battery capacity testing module and the storage battery are in a separated state. When the storage battery capacity test is needed, a user only needs to send a storage battery operation instruction, after the storage battery on-line monitoring and maintenance module receives the instruction, the direct current contactor in the alternating current detection control module is immediately controlled to act, the nodes A and C are in a communicated state, so that the group of batteries are separated from the system, the storage battery capacity test module is controlled to start working, a storage battery discharge capacity test is carried out, the battery discharge current is detected in the whole discharging process, and the storage battery capacity test module is controlled in real time, so that the storage batteries in the whole discharging process are all in a constant current discharge state, and the storage battery capacity test is more stable and accurate. In addition, the follow current circuit in the alternating current detection control module can ensure the safety of load power supply: when the battery pack is in a discharging state, if alternating current power failure or other reasons cause the power failure of the rectifier, the battery directly provides power support for the actual load of a station through a freewheeling loop without gaps, and meanwhile, after the system detects the alternating current fault, the system immediately controls a direct current contactor in an alternating current detection control module to act to enable the nodes A and B to be connected, so that the battery is separated from the storage battery capacity testing module and returns to a normal state. The storage battery charge and discharge control module in the scheme is simple and convenient to control, and the remote charge and discharge test is stable and accurate.
Further, the rectifier module is connected in parallel with an actual load in the power supply system.
Preferably, the information acquisition device is connected to an internal transmission bus of the communication power supply system, preferably to an RS232 communication interface, and the storage battery data of the communication power supply system read by the storage battery online monitoring and maintenance module includes a storage battery pack terminal voltage, a storage battery cell internal resistance, and a storage battery cell temperature. According to the technical scheme, an internal transmission bus of the communication power supply system is connected with the information acquisition equipment, is converted into an internet access network through the local data processing system, uploads data to the power supply comprehensive operation and maintenance management server, and the power supply comprehensive operation and maintenance management server analyzes and presents the communication power supply data. The state information of the communication power supply system can be comprehensively collected, and the collected big data is subjected to history and related analysis by using the intelligent analysis function of the server, so that the state of the communication power supply system can be more accurately predicted.
Further, the communication power supply data in the communication power supply system collected by the information collecting device includes: the data of high frequency switching power supply, UPS, intelligent power distribution cabinet, high frequency switching power supply data include direct current voltage and direct current, the power is synthesized the fortune and is maintained the server and can be according to direct current voltage, the direct current that information acquisition equipment gathered and calculate high frequency switching power supply module of charging.
The invention further provides a self-checking method of the high-frequency switch power supply charging module based on the communication power supply monitoring system in the scheme, which comprises a current stabilization precision self-checking step, a voltage stabilization precision self-checking step and a ripple factor self-checking step, wherein:
the steady flow precision self-checking step comprises steps S1-S5:
s1, setting a steady flow precision alarm threshold fixed value delta I1;
s2, collecting direct current voltage in real time;
s3, calculating an output current fluctuation limit value IM in the direct current voltage;
s4, calculating the steady flow precision delta I:
δI＝[(IM－IZ)/IZ]×100％ (1)
in formula (1): IZ is an output current setting value;
s5, judging whether delta I is larger than or equal to delta I1, if yes, giving an alarm;
the step of voltage stabilization precision self-checking comprises steps SS1-SS 5:
SS1, setting a constant voltage precision alarm threshold fixed value delta U1;
SS2, collecting direct current in real time;
SS3, calculating an output voltage fluctuation limit value UM;
SS4, calculating stabilized voltage precision delta U:
δU＝[(UM－UZ)/UZ]×100％ (2)
in formula (2): UZ is an output voltage setting value;
SS5, judging whether delta U is more than or equal to delta U1, if yes, alarming;
the ripple factor self-checking step comprises the steps SSS1-SSS 5:
(2) ripple coefficient self-check
SSS1, setting a ripple coefficient alarm threshold fixed value delta 1;
SSS2, collecting direct current voltage in real time;
SSS3, calculating a pulse peak value Uf, a pulse valley value Ug and an average value UP in the direct-current voltage;
SSS4, calculating ripple coefficient δ:
δ＝[(Uf－Ug)/2UP]×100％ (3)；
SSS5, judging whether delta is more than or equal to delta 1, if yes, alarming.
According to the method, the output parameters of each charging module of the high-frequency switching power supply are self-checked, aging self-checking of components such as the resistance and the capacitance of the charging module is indirectly performed, self-checking of the charging module is simply and conveniently achieved, online monitoring is achieved, one-by-one shutdown test is avoided, and the output parameters of the charging module can be guaranteed at ordinary times.
Compared with the prior art, the invention has the following advantages and beneficial effects:
1. according to the communication power supply monitoring system, the communication power supply in the transformer station is connected to the power supply comprehensive operation and maintenance server, technical maintenance personnel can know the real-time state of the communication power supply system through the control terminal, manual work for on-station inspection is not needed, the working efficiency of operation and maintenance personnel is greatly improved, and the investment of manpower and financial resources is reduced.
2. According to the communication power supply monitoring system, the storage battery charging and discharging control module is simple and convenient to control, and the remote charging and discharging test is stable and accurate;
3. the communication power supply monitoring system can more comprehensively acquire the state information of the communication power supply system and send the state information to the power supply comprehensive operation and maintenance management server;
4. the method of the invention carries out self-checking on the output parameters of each charging module of the high-frequency switching power supply, indirectly carries out self-checking on the aging of components such as the resistance and the capacitance of the charging module, simply and conveniently realizes the self-checking of the charging module, realizes on-line monitoring, avoids one-by-one shutdown test, and can ensure the output parameters of the charging module at ordinary times.
Drawings
The accompanying drawings, which are included to provide a further understanding of the embodiments of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the principles of the invention. In the drawings:
FIG. 1 is a block diagram of the system of the present invention;
fig. 2 is a block diagram showing the structure of the battery charge/discharge control module.
Reference numbers and corresponding part names:
1-a communication power supply system, 2-a power supply comprehensive operation and maintenance server and 3-a control terminal; 4-a network communication device; 5-information acquisition equipment; 6-online monitoring and maintaining module of the storage battery; 7-storage battery charging and discharging control module.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to examples and accompanying drawings, and the exemplary embodiments and descriptions thereof are only used for explaining the present invention and are not meant to limit the present invention.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. However, it will be apparent to one of ordinary skill in the art that: it is not necessary to employ these specific details to practice the present invention. In other instances, well-known structures, circuits, materials, or methods have not been described in detail so as not to obscure the present invention.
Throughout the specification, reference to "one embodiment," "an embodiment," "one example" or "an example" means: the particular features, structures, or characteristics described in connection with the embodiment or example are included in at least one embodiment of the invention. Thus, the appearances of the phrases "one embodiment," "an embodiment," "one example" or "an example" in various places throughout this specification are not necessarily all referring to the same embodiment or example. Furthermore, the particular features, structures, or characteristics may be combined in any suitable combination and/or sub-combination in one or more embodiments or examples. Further, those of ordinary skill in the art will appreciate that the illustrations provided herein are for illustrative purposes and are not necessarily drawn to scale. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
Examples
As shown in fig. 1, the communication power supply monitoring system of the present invention includes an information acquisition device 5, a storage battery online monitoring and maintenance module 6, a storage battery charging and discharging control module 7, a local data processing system, a power supply comprehensive operation and maintenance server 2, and a control terminal 3, wherein: the information acquisition equipment 5, the storage battery on-line monitoring and maintenance module 6, the storage battery charging and discharging control module 7 and the local data processing system are uniformly distributed at the end of the communication power supply system 1, the power supply comprehensive operation and maintenance server 2 is distributed in a remote monitoring center, and the control terminal 3 can be in remote communication with the power supply comprehensive operation and maintenance server 2. The functions of the modules are respectively as follows:
an information acquisition device 5 for acquiring communication power supply data in the communication power supply system 1;
the local data processing system is used for accessing the information acquisition equipment 5 into a network, receiving the communication power supply data acquired by the information acquisition equipment 4 and sending the communication power supply data to the power supply comprehensive operation and maintenance server 2; the local data processing system can adopt two preferable construction modes: one is to employ a separate network communication device 4, such as a router or switch; the other is that the local data processing system comprises a local server 8 and a network communication device 4, wherein the network communication device adopts a router or a switch; when the second method is adopted, the local server 8 is connected with the power supply comprehensive operation and maintenance server 2 through the network communication equipment 4; the local server 8 is connected with the information acquisition device 5, the storage battery monitoring device 6 and the storage battery charging and discharging control module 7, receives data acquired by the information acquisition device 5 and the storage battery monitoring device 6, and sends storage battery operation instructions to the storage battery charging and discharging control module 7;
the storage battery online monitoring and maintaining module 6 is used for reading storage battery data of a communication power supply system, sending the storage battery data to the power supply comprehensive operation and maintenance server through the local data processing system, forwarding the storage battery data to the storage battery charging and discharging control module 7 when receiving an operation instruction of the storage battery, and controlling the storage battery charging and discharging control module 7 to perform remote charging and discharging tests;
the control terminal 3 is used for receiving a user instruction, sending the received user instruction to the power supply comprehensive operation and maintenance server 2, calling communication power supply data and/or storage battery data of the communication power supply system 1 from the power supply comprehensive operation and maintenance server 2 according to the user instruction, displaying the communication power supply data and/or storage battery data to a user, and sending an operation instruction to the power supply comprehensive operation and maintenance server 2, wherein the operation instruction comprises a storage battery operation instruction;
the power supply comprehensive operation and maintenance server 2 is used for analyzing and presenting the communication power supply data; the power supply comprehensive operation and maintenance server 2 also sends the received storage battery operation instruction to the storage battery online monitoring and maintenance module 6 through a local data processing system;
and the storage battery charging and discharging control module 7 is used for carrying out remote charging and discharging tests on the storage battery according to the received storage battery operation instruction.
As shown in fig. 2, the storage battery charging and discharging control module 7 includes a rectifier, a storage battery capacity testing module, and an ac detection control module, the ac detection control module includes a diode and a dc contactor, the dc contactor has three contacts, which are respectively a contact a, a contact B, and a contact C, wherein the positive electrode of the storage battery is connected to the positive electrode of the diode and the contact a, the rectifier is connected between the negative electrode of the diode and the negative electrode of the storage battery, the storage battery capacity testing module is connected between the contact C and the negative electrode of the storage battery, the contact B is connected to the negative electrode of the diode, and the rectifier module is connected in parallel to the actual load in the power supply system 1.
The storage battery data of the communication power supply system read by the storage battery online monitoring and maintaining module 6 comprises storage battery group terminal voltage, storage battery monomer internal resistance and storage battery monomer temperature.
In fig. 2, the dotted line frame is an ac detection control module. When the module normally works, the direct current contactor in the module is in a normally closed node, namely the nodes A and B are in a communicated state, and at the moment, the storage battery capacity testing module and the storage battery are in a separated state. When the storage battery capacity test is needed, a user only needs to send a storage battery operation instruction (click a remote discharge button on the power supply comprehensive operation and maintenance server 2 or the control terminal 3 and set various discharge parameters), after receiving the instruction, the storage battery online monitoring and maintenance module 6 immediately controls a direct current contactor in the alternating current detection control module to act, so that the nodes A and C are in a communicated state, the group of batteries are separated from the system, the storage battery capacity test module is controlled to start working, a storage battery discharge capacity test is carried out, the battery discharge current is detected in the whole discharge process, and the storage battery capacity test module is used for controlling in real time, so that the storage batteries in the whole discharge process are all in a constant-current discharge state, and the storage battery capacity test is more stable and accurate. In addition, the follow current circuit in the alternating current detection control module can ensure the safety of load power supply: when the battery pack is in a discharging state, if alternating current power failure or other reasons cause the power failure of the rectifier, the battery directly provides power support for the actual load of a station through a freewheeling loop without gaps, and meanwhile, after the system detects the alternating current fault, the system immediately controls a direct current contactor in an alternating current detection control module to act to enable the nodes A and B to be connected, so that the battery is separated from the storage battery capacity testing module and returns to a normal state.
In the prior art, a maintenance method for a storage battery is to perform a periodic capacity discharge test on all storage battery packs strictly according to a power maintenance regulation so as to accurately know the residual capacity of the storage battery at each stage and prevent the active substances of the storage battery from aging. The capacity discharge test is indeed the most accurate method for detecting the remaining capacity of the battery, but is also the most complex and time-consuming method. The method has the advantages that the defects of the maintenance method are gradually displayed under the condition that the number of the storage battery packs is continuously increased, the types of the storage battery packs are more, and the maintenance personnel are continuously simplified. The embodiment realizes remote charging and discharging of the storage battery pack through network control. The storage battery comprehensive operation and maintenance server issues a storage battery operation instruction to control the alternating current detection control module to be in a discharge state, the storage battery performs online discharge through the storage battery capacity testing module, multiple discharge parameters are taken as conditions (cell voltage, total voltage of a battery pack, discharge capacity, discharge duration and temperature), any parameter reaches a set threshold value in the discharge process to automatically stop discharge, and the storage battery is controlled to recover to a normal working mode. In the whole discharging process, the system accurately records the discharging time, the discharging capacity and the monomer voltage change condition. After the test is finished, the system automatically generates PDF and EXCEL test reports for downloading and checking at any time. When the discharge is required to be stopped manually, only the storage battery operation instruction is sent (a remote discharge button on the power supply comprehensive operation and maintenance server 2 or the control terminal 3 is clicked and various discharge parameters are set), after the storage battery online monitoring and maintenance module 6 receives the control instruction, the storage battery capacity testing module is controlled to stop working, the group of storage batteries are returned to the power supply system, the storage batteries are charged by the switching power supply, and various parameters during the charging of the storage batteries are detected in the whole process, so that the online charging monitoring function of the storage batteries is completed. Need not artifical station patrol and examine again, very big improvement fortune dimension staff's work efficiency and reduced the input of manpower and financial resources.
[ example 2 ]
On the basis of embodiment 1, this embodiment further improves a communication power supply monitoring system in the present invention as follows: the information acquisition device 5 is accessed to an internal transmission bus RS232 of the communication power supply system 1, that is, data of the communication power supply system transmission bus is directly read and transmitted back to the power supply comprehensive operation and maintenance server 2 for analysis, and the communication power supply data in the communication power supply system 1 acquired by the information acquisition device 5 includes: high frequency switch power supply, UPS, intelligent power distribution cabinet's data, high frequency switch power supply data include direct current voltage and direct current, the power is synthesized the fortune and is maintained server 2 and can be according to the direct current voltage, the direct current that information acquisition equipment 5 gathered calculate high frequency switch power supply charge module, stationary current precision, steady voltage precision, ripple coefficient, and like this, the data of gathering are more, just can be more comprehensive gather communication power supply system's state information to utilize the intelligent analysis function of server, carry out history and relevant analysis with the big data of collecting, the more accurate state of predicting communication power supply system.
The system in the embodiment can realize the on-line self-checking of the high-frequency switch power supply charging module in the communication power supply system, and comprises the measurement of the current stabilization precision, the voltage stabilization precision and the ripple factor.
The high-frequency switch power supply charging module meets the technical requirements that the voltage stabilization precision is better than 0.5%, the current stabilization precision is better than 1%, and the ripple coefficient of the output voltage is not more than 1%. The periodic test needs to stop the charging modules one by one for testing, so that the output parameters of the charging modules are difficult to ensure at ordinary times, and online monitoring cannot be realized. The communication power supply of the existing power grid is designed according to the power grid regulation, the charging module rated current configuration considers the condition of uniform charging of the storage battery, the configuration capacity is far greater than the normal load of the floating charging condition of the storage battery, the charging module is completely damaged to cause faults, the influence on a communication power supply system is small, and the influence on the system is large due to parameter distortion caused by aging of components. And to components and parts ageing self-checking such as charging module resistance, electric capacity, realize that the circuit requires precision measurement, software and hardware are difficult to realize. In this embodiment, self-checking of the output parameters of each charging module according to a fast recognition and calculation method can be realized, and the self-checking is indirect self-checking of aging of components such as a resistor and a capacitor of the charging module, as shown in the following:
(1) precision of constant flow
In the charging device, under the charging (current stabilizing) state, the alternating current input voltage is changed within the range of 323-456V, the output voltage is changed within the charging voltage regulation range, and the output current is kept at any value within the range of 20% -100% of the rated value of the output current
When the output current is stable, the stability degree of the output current is calculated according to the formula (1):
δI＝[(IM－IZ)/IZ]×100％ (1)
in formula (1): delta I is the precision of the steady flow; IM is an output current fluctuation limit value; IZ is an output current setting value and is a known number.
(2) Precision of voltage stabilization
Under the floating charge (voltage stabilization) state of the charging device, the alternating current input voltage changes within the range of 323-456V, the output current changes within the range of 0% -100% of the rated value of the charging device, and the output voltage stability degree of the charging device is calculated according to the formula (2) when the output voltage is kept stable on any numerical value within the floating charge voltage regulation range:
δU＝[(UM－UZ)/UZ]×100％ (2)
in formula (2): delta U is the voltage stabilization precision; UM is the fluctuation limit value of the output voltage; and UZ is an output voltage setting value and is a known number.
(3) Coefficient of ripple
Under the floating charging (voltage stabilization) state of the charging device, the alternating current input voltage changes within the range of 323-456V, the output current changes within the range of 0% -100% of the rated value of the charging device, the output voltage is on any value within the floating charging voltage regulation range, half of the difference between the peak value and the valley value of the pulsating quantity at two ends of the resistive load and the average value of the direct current output voltage are measured, and the ratio of the peak value to the valley value to the average value of the direct current output voltage is calculated according to a formula (3):
δ＝[(Uf－Ug)/2UP]×100％ (3)
in formula (3): delta is a ripple coefficient; uf is a pulse peak value in direct-current voltage; ug is the pulse valley value in the direct voltage; UP is the dc voltage average.
The online self-checking of the high-frequency switching power supply charging module comprises the following steps:
(1) self-checking of current-stabilizing precision and voltage-stabilizing precision
a. A steady-current precision alarm threshold fixed value delta I1 and a steady-voltage precision alarm threshold fixed value delta U1 are additionally arranged in the power supply comprehensive operation and maintenance server 2;
b. the information acquisition device 5 acquires direct current voltage and direct current in real time;
c. calculating an output current fluctuation limit value IM and an output voltage fluctuation limit value UM in the direct current voltage, wherein the step is the prior art and is not described in the embodiment;
d. the power supply comprehensive operation and maintenance server 2 respectively calculates the current stabilization precision delta I and the voltage stabilization precision delta U according to the formulas (1) and (2);
e. judging whether the delta I is larger than or equal to the delta I1, if so, giving an alarm; and judging whether the delta U is more than or equal to the delta U1, and if so, giving an alarm.
(2) Ripple coefficient self-check
a. A ripple coefficient alarm threshold fixed value delta 1 is additionally arranged in the power supply comprehensive operation and maintenance server 2;
b. the information acquisition device 5 acquires direct-current voltage in real time;
c. calculating a pulse peak value, a pulse valley value and an average value in the direct-current voltage, wherein the step is the prior art and is not repeated in the embodiment;
d. the power supply comprehensive operation and maintenance server 2 calculates a ripple factor delta according to a formula (3);
e. and judging whether the delta is more than or equal to the delta 1, and if so, giving an alarm. In this embodiment, other modules with structures not described in detail, including but not limited to the information acquisition device 5, the storage battery online monitoring and maintenance module 6, and other hardware, may be implemented by using a device in the prior art, and in this embodiment, detailed description of specific circuits thereof is omitted, and the control terminal may be implemented by using a mobile phone, a tablet computer, a computer, and the like, and loading corresponding software, and the hardware structure thereof is omitted in this embodiment.
[ example 3 ] A method for producing a polycarbonate
In this embodiment, a self-checking method for a high-frequency switching power supply charging module based on the communication power supply monitoring system in embodiment 2 is provided, where the method includes a step of current stabilization precision self-checking, a step of voltage stabilization precision self-checking, and a step of ripple factor self-checking, where:
the steady flow precision self-checking step comprises steps S1-S5:
s1, setting a steady flow precision alarm threshold fixed value delta I1;
s2, collecting direct current voltage in real time;
s3, calculating an output current fluctuation limit value IM in the direct current voltage;
s4, calculating the steady flow precision delta I:
δI＝[(IM－IZ)/IZ]×100％ (1)
in formula (1): IZ is an output current setting value;
s5, judging whether the delta I is more than or equal to the delta I1, if so, giving an alarm;
the step of voltage stabilization precision self-checking comprises steps SS1-SS 5:
SS1, setting a constant voltage precision alarm threshold fixed value delta U1;
SS2, collecting direct current in real time;
SS3, calculating an output voltage fluctuation limit value UM;
SS4, calculating voltage stabilization precision delta U:
δU＝[(UM－UZ)/UZ]×100％ (2)
in formula (2): UZ is an output voltage setting value;
SS5, judging whether delta U is larger than or equal to delta U1, if yes, alarming;
the ripple coefficient self-checking step comprises the steps of SSS1-SSS 5:
(2) ripple coefficient self-check
SSS1, setting a ripple coefficient alarm threshold fixed value delta 1;
SSS2, collecting direct current voltage in real time;
SSS3, calculating a pulse peak value Uf, a pulse valley value Ug and an average value UP in the direct-current voltage;
SSS4, calculating ripple coefficient δ:
δ＝[(Uf－Ug)/2UP]×100％ (3)；
SSS5, judging whether delta is more than or equal to delta 1, if yes, alarming.
In the embodiment, the high-frequency switching power supply charging module performs self-checking on the output parameters of each charging module through the method, indirectly performs self-checking on aging of components such as resistors and capacitors of the charging modules, simply and conveniently realizes self-checking of the charging modules, realizes online monitoring, avoids one-by-one shutdown test, and can ensure the output parameters of the charging modules at ordinary times.
The above-mentioned embodiments are intended to illustrate the objects, technical solutions and advantages of the present invention in further detail, and it should be understood that the above-mentioned embodiments are merely exemplary embodiments of the present invention, and are not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (7)
1. A self-checking method for a high-frequency switch power supply charging module is characterized in that a communication power supply monitoring system is adopted for self-checking,
communication power supply monitored control system is including laying information acquisition equipment (5) and the local data processing system at communication power supply system (1) end, laying in remote monitoring center's power synthesis operation and maintenance server (2), battery on-line monitoring maintenance module (6), control terminal (3) and battery charge and discharge control module (7), wherein:
the information acquisition equipment (5) is used for acquiring communication power supply data in the communication power supply system (1);
the local data processing system is used for accessing the information acquisition equipment (5) to a network, receiving communication power supply data acquired by the information acquisition equipment (5) and sending the communication power supply data to the power supply comprehensive operation and maintenance server (2);
the power supply comprehensive operation and maintenance server (2) is used for analyzing and presenting the communication power supply data;
the storage battery online monitoring and maintaining module (6) is used for reading storage battery data of a communication power supply system, sending the storage battery data to the power supply comprehensive operation and maintenance server through the local data processing system, forwarding the storage battery data to the storage battery charging and discharging control module (7) when receiving a storage battery operation instruction, and controlling the storage battery charging and discharging control module (7) to perform remote charging and discharging tests;
the control terminal (3) is used for receiving a user instruction, sending the received user instruction to the power supply comprehensive operation and maintenance server (2), calling communication power supply data and/or storage battery data of the communication power supply system (1) from the power supply comprehensive operation and maintenance server (2) according to the user instruction, displaying the communication power supply data and/or storage battery data to a user, and sending an operation instruction to the power supply comprehensive operation and maintenance server (2), wherein the operation instruction comprises a storage battery operation instruction; the power supply comprehensive operation and maintenance server (2) also sends the received storage battery operation instruction to the storage battery online monitoring and maintenance module (6) through the local data processing system;
the storage battery charging and discharging control module (7) is used for carrying out remote charging and discharging tests on the storage battery according to the received storage battery operation instruction;
the communication power supply data in the communication power supply system (1) collected by the information collecting device (5) comprises the following steps: the high-frequency switch power supply data comprises direct-current voltage and direct-current, and the power supply comprehensive operation and maintenance server (2) can calculate the current stabilization precision, the voltage stabilization precision and the ripple factor of the high-frequency switch power supply charging module according to the direct-current voltage and the direct-current collected by the information collection equipment (5);
the method comprises a steady flow precision self-checking step, a steady voltage precision self-checking step and a ripple factor self-checking step, wherein:
the steady flow precision self-checking step comprises steps S1-S5:
s1, setting a steady flow precision alarm threshold fixed value delta I1;
s2, collecting direct current voltage in real time;
s3, calculating an output current fluctuation limit value IM in the direct current voltage;
s4, calculating the steady flow precision delta I:
δI =[（IM －IZ ）/IZ ]×100% （1）
in formula (1): IZ is an output current setting value;
s5, judging whether the delta I is more than or equal to the delta I1, if so, giving an alarm;
the voltage stabilization precision self-checking step comprises the steps SS1-SS 5:
SS1, setting a constant voltage precision alarm threshold fixed value delta U1;
SS2, collecting direct current in real time;
SS3, calculating an output voltage fluctuation limit value UM;
SS4, calculating voltage stabilization precision delta U:
δU =[（UM －UZ ）/UZ ] ×100% （2）
in the formula (2): UZ is an output voltage setting value;
SS5, judging whether delta U is more than or equal to delta U1, if yes, alarming;
the ripple coefficient self-checking step comprises the steps of SSS1-SSS 5:
(2) ripple coefficient self-check
SSS1, setting a ripple coefficient alarm threshold fixed value delta 1;
SSS2, collecting direct current voltage in real time;
SSS3, calculating a pulse peak value Uf, a pulse valley value Ug and an average value UP in the direct-current voltage;
SSS4, calculating ripple coefficient δ:
δ=[（Uf －Ug ）/2UP ] ×100% （3）；
SSS5, judging whether delta is larger than or equal to delta 1, if yes, alarming.
2. A high frequency switching power supply charging module self-checking method according to claim 1, characterized in that the local data processing system is a network communication device (4).
3. A high frequency switching power supply charging module self-checking method according to claim 1, characterized in that the local data processing system comprises a local server (8) and a network communication device (4); the local server (8) is connected with the power supply comprehensive operation and maintenance server (2) through network communication equipment (4); the local server (8) is connected with the information acquisition equipment (5), the storage battery online monitoring and maintenance module (6) and the storage battery charging and discharging control module (7), receives data acquired by the information acquisition equipment (5) and the storage battery online monitoring and maintenance module (6), and sends a storage battery operation instruction to the storage battery charging and discharging control module (7).
4. The self-checking method of the charging module of the high-frequency switching power supply according to claim 1, wherein the battery charging and discharging control module (7) comprises a rectifier, a battery capacity testing module and an alternating current detection control module, the alternating current detection control module comprises a diode and a direct current contactor, the direct current contactor has three contacts, namely a contact A, a contact B and a contact C, the positive pole of the battery is connected with the positive pole of the diode and the contact A, the rectifier is connected between the negative pole of the diode and the negative pole of the battery, the battery capacity testing module is connected between the contact C and the negative pole of the battery, and the contact B is connected with the negative pole of the diode.
5. A high frequency switching power supply charging module self-checking method according to claim 4, characterized in that the rectifier is connected in parallel with the actual load in the communication power supply system (1).
6. A self-checking method for a charging module of a high-frequency switching power supply according to any one of claims 1 to 5, characterized in that the information acquisition device (5) is connected to an internal transmission bus of a communication power supply system (1).
7. The self-checking method for the charging module of the high-frequency switching power supply as claimed in any one of claims 1 to 5, wherein the battery data of the communication power supply system read by the battery on-line monitoring and maintaining module (6) comprises a battery terminal voltage, a battery cell internal resistance and a battery cell temperature.
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| CN111884328A (en) * | 2020-06-12 | 2020-11-03 | 广东电网有限责任公司 | Power supply self-adaptive system based on multi-source fusion and working method thereof |
| CN112083220A (en) * | 2020-08-19 | 2020-12-15 | 中车长春轨道客车股份有限公司 | Method for monitoring voltage of storage battery of motor train unit |
| CN113093045A (en) * | 2021-04-06 | 2021-07-09 | 广东电网有限责任公司 | Power quality monitoring device, system and method for alternating current-direct current conversion power supply |
| CN113269455A (en) * | 2021-06-03 | 2021-08-17 | 成都市昊峰网络工程有限公司 | Automatic operation and maintenance system based on internet |
| CN117118036B (en) * | 2023-10-23 | 2024-02-13 | 中国南方电网有限责任公司 | Communication power supply system and application method |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1994010718A1 (en) * | 1992-10-23 | 1994-05-11 | Sony Corporation | Battery pack |
| WO1998031088A2 (en) * | 1997-01-07 | 1998-07-16 | Ion Control Solutions L.L.C. | Improved method and apparatus for rapidly charging and reconditioning a battery |
| CN101592946A (en) * | 2009-06-22 | 2009-12-02 | 山东电力集团公司济南供电公司 | A kind of remotely monitoring communication network storage battery method and system |
| CN101813755A (en) * | 2010-04-09 | 2010-08-25 | 福州福光电子有限公司 | Charge and discharge test equipment for full on-line storage battery pack |
| CN202994879U (en) * | 2012-04-24 | 2013-06-12 | 深圳市深泰明科技有限公司 | Electric signal measurement device and device for on-line monitoring of storage-battery float-charging current |
| CN104820200A (en) * | 2015-05-14 | 2015-08-05 | 哈尔滨冠拓电源设备有限公司 | Battery management system function check platform with self-checking function, self-checking method, and check method |
| CN204651951U (en) * | 2015-04-02 | 2015-09-16 | 广东南方电力通信有限公司 | A kind of accumulator cell charging and discharging management system of control Network Based |
| DE102014226190A1 (en) * | 2014-12-17 | 2016-06-23 | Robert Bosch Gmbh | Test device for checking a battery control unit or a battery and method for testing a battery control unit or a battery |
| CN206057925U (en) * | 2016-08-29 | 2017-03-29 | 郑州金特莱电子有限公司 | Fire-fighting equipment power supply status monitoring system |
| CN107677969A (en) * | 2017-10-25 | 2018-02-09 | 福州福光电子有限公司 | The charge/discharge test device of distributed complete online batteries |
| CN109980305A (en) * | 2019-01-30 | 2019-07-05 | 云南电网有限责任公司曲靖供电局 | Communication power supply intelligent maintenance device |
| CN110187698A (en) * | 2019-06-06 | 2019-08-30 | 北京和利时系统工程有限公司 | The intelligent electric power unit of vehicle-mounted train control system |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011031930A2 (en) * | 2009-09-12 | 2011-03-17 | Fenix International, Inc. | Method and apparatus for charging a battery |
-
2019
- 2019-11-25 CN CN201911165357.4A patent/CN110908360B/en active Active
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1994010718A1 (en) * | 1992-10-23 | 1994-05-11 | Sony Corporation | Battery pack |
| WO1998031088A2 (en) * | 1997-01-07 | 1998-07-16 | Ion Control Solutions L.L.C. | Improved method and apparatus for rapidly charging and reconditioning a battery |
| CN101592946A (en) * | 2009-06-22 | 2009-12-02 | 山东电力集团公司济南供电公司 | A kind of remotely monitoring communication network storage battery method and system |
| CN101813755A (en) * | 2010-04-09 | 2010-08-25 | 福州福光电子有限公司 | Charge and discharge test equipment for full on-line storage battery pack |
| CN202994879U (en) * | 2012-04-24 | 2013-06-12 | 深圳市深泰明科技有限公司 | Electric signal measurement device and device for on-line monitoring of storage-battery float-charging current |
| DE102014226190A1 (en) * | 2014-12-17 | 2016-06-23 | Robert Bosch Gmbh | Test device for checking a battery control unit or a battery and method for testing a battery control unit or a battery |
| CN204651951U (en) * | 2015-04-02 | 2015-09-16 | 广东南方电力通信有限公司 | A kind of accumulator cell charging and discharging management system of control Network Based |
| CN104820200A (en) * | 2015-05-14 | 2015-08-05 | 哈尔滨冠拓电源设备有限公司 | Battery management system function check platform with self-checking function, self-checking method, and check method |
| CN206057925U (en) * | 2016-08-29 | 2017-03-29 | 郑州金特莱电子有限公司 | Fire-fighting equipment power supply status monitoring system |
| CN107677969A (en) * | 2017-10-25 | 2018-02-09 | 福州福光电子有限公司 | The charge/discharge test device of distributed complete online batteries |
| CN109980305A (en) * | 2019-01-30 | 2019-07-05 | 云南电网有限责任公司曲靖供电局 | Communication power supply intelligent maintenance device |
| CN110187698A (en) * | 2019-06-06 | 2019-08-30 | 北京和利时系统工程有限公司 | The intelligent electric power unit of vehicle-mounted train control system |
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