CN202975282U - Real-time monitoring control system of storage battery equipment in direct current power supply system - Google Patents
Real-time monitoring control system of storage battery equipment in direct current power supply system Download PDFInfo
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- CN202975282U CN202975282U CN 201220706948 CN201220706948U CN202975282U CN 202975282 U CN202975282 U CN 202975282U CN 201220706948 CN201220706948 CN 201220706948 CN 201220706948 U CN201220706948 U CN 201220706948U CN 202975282 U CN202975282 U CN 202975282U
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Abstract
The utility model provides a real-time monitoring control system of storage battery equipment in a direct current power supply system to achieve monitoring test systematization and automation of a storage battery and peripheral equipments. The system comprises a storage battery set to be tested, a battery charger, a monitoring host computer, a voltage balancing module, a charging characteristic test module, a discharge load, a video system and a mobile phone communication module, wherein the voltage balancing module, the charging characteristic test module, the discharge load, the video system and the mobile phone communication module respectively communicate with the monitoring host computer through corresponding RS485 interfaces; and the monitoring host computer is connected to a central control room of a power grid through a private network of the power system or Ethernet, so as to achieve remote monitoring of the network. By adopting the system, voltage current, charge and discharge tests, inner resistance tests, capacity tests, voltage balance, voltage and current stabilizing ripple coefficients of the battery charger and the like of the storage battery sets of all transformer substations can be embedded into the system to intervene into the power system which is highly systematized; and uniform management control of seven constituent parts of the power system is achieved, so that tests of a backup power supply and peripheral equipments can be finished just by a mouse.
Description
Technical field
The utility model relates to the monitor control system of accumulator equipment in a kind of DC power system, can be used for battery pack and peripheral equipment are carried out remote monitoring, controlled and management.
Background technology
Now, what the electric power operation power acquisition in generating plant and transformer station was used is all direct supply, and it is for signalling arrangement, protection, aut.eq., emergency lighting, emergency power pack and isolating switch divide, closing operation provides working power; Direct supply is the basis of contemporary electric power system control, protection.DC power system has seven large ingredients: rectification module system, supervisory system, insulating monitoring unit, secondary battery unit, switching value unit, pressure unit and power supply unit.Wherein secondary battery unit is the heart of straight-flow system, and the maintenance of accumulator being carried out science is the core work of straight-flow system.All to do test to battery and charging device every year by " straight-flow system operations specification " middle proposition that State Grid Corporation of China promulgates, with the charged ability of inspection accumulator and the qualification of charging device.
proposed clearly in " the 15 operation of valve-control storage battery group and the maintenance " of " straight-flow system operations specification " will monitor the terminal voltage value of battery pack as the battery pack in standby power supply when moving, the floating charging flow valuve, the magnitude of voltage of every cell batteries, operating ambient temperature, resistance to earth value and the state of insulation of battery pack and dc bus, the parameter such as voltage deviation value and will to electric battery carry out that periodicity discharges and recharges and " twenty-one provision is safeguarded and is detected " in should regularly carry out the precision of voltage regulation, precision of steady current, the parameter testings such as current-sharing degree of unbalancedness of ripple factor and high frequency switch power type charging device.
At present, classic method to the various tests of accumulator is voltage, the electric current of total voltage and every batteries of test battery group weekly, battery after breaking away from, system is done charge-discharge test to battery, with the precision of voltage regulation, precision of steady current and the ripple factor of test charging cabinet after the charging cabinet outage.The staff will go weekly to measure and record these parameters, and annual all will be with the electric battery detachment system at each station, connect more than 100 and gather line on battery, discharge is more than 3 hours, have want eight even ten hours, this work wants two people to do at least, not only workload is large, and the time is long, and because p-wire is many, disorderly on-the-spot, the non-constant of safety and reliability.Come off if there is single line to press from both sides bad and touch because of carelessness in test process, all working all with in vain, must retest by second day.
The quality etc. that judges battery by the internal resistance of test single battery is also arranged in recent years.Specifically use the accumulator internal resistance instrument, internal resistance by the test accumulator comes indirectly testing to go out the capacity of battery, and this method testing efficiency still can be satisfied with, but the measurement that also needs to go to each place and want joint one batteries, workload is also very large, and often hard work merit of staff is not high.And to the test of charging device because will in the face of power electric staff dangerous high not only, the more important thing is when testing and must test separately by parting system.Only just have an opportunity to test when large maintenance has a power failure in these various places of working.No matter be large, dangerous high to battery pack or the existing test way of the charging device scattered amount of not only working, poor reliability, automaticity is low, and each test event is single, and the hidden danger that system is caused is too large.
Above two kinds of methods, although can complete all tests, but all need electric battery or charging device detachment system, and be connected into the p-wire of hundred, perhaps the tester will be in the battery chamber joint one test that saves land, each station is annual will do a large amount of work like this, not only needs very large financial resources and material resources, and exist very large drawback and very high risk, all and requirement and development trend reliability increasingly automated with electric system are runed counter to for these.
Modern straight-flow system is classified as unification with other six major parts, therefore, needs the control and measuring systematization, the robotization that realize accumulator and peripheral equipment badly.
The utility model content
The utility model provides the real-time inspection and control system of accumulator equipment in a kind of DC power system, to realize control and measuring systematization, the robotization of accumulator and peripheral equipment.
The solution that the utility model proposes is as follows:
The real-time inspection and control system of accumulator equipment in a kind of DC power system comprises battery pack to be measured, charging set, monitoring host computer and the voltage balancing module of communicating by letter with monitoring host computer by corresponding RS485 interface respectively, charge characteristic test module, discharge load, video system and mobile communication module; Monitoring host computer is connected to the electrical network Central Control Room to realize network remote monitoring by electric system private network or Ethernet;
Monitoring host computer adopts the DXP chip as control core, and voltage balancing module is by the voltage of DXP chip controls with the electric current and voltage collection, internal resistance measurement and the balanced battery pack to be measured that realize battery pack to be measured; Discharge load and battery pack to be measured are together in parallel by the topworks of monitoring host computer; The charge characteristic test module is connected to realize the collection respectively to the precision of voltage regulation, precision of steady current and ripple factor with charging set, and is connected with the DXP chip by the data exchange processing module; The VT of video system also is connected to the DXP chip; The data output end of DXP chip is connected with the mobile communication module with the display screen of monitoring host computer by the MAX3232 chip.
Based on above-mentioned basic technical scheme, the utility model can also further be done following optimization and limit:
The voltage acquisition of above-mentioned battery pack to be measured is to be completed by the A/D acquisition system of DXP chip internal, current acquisition is by the Hall element collection, internal resistance measurement is the circuit structure that includes Special precision resistance TR100 series that adopts according to the setting of pulsed discharge method, and the voltage output end of each batteries of battery pack to be measured all consists of feedback control circuit with DXP chip and charging set.
Be provided with the CMOS pipe as breakover element in above-mentioned discharge load, the DXP chip adopts the dutycycle of the CMOS pipe in the load of PWM controlled discharge to keep constant to regulate electric current.
Above-mentioned monitoring host computer specifically adopts the ENC28J60 network interface to be connected with electric system private network or Ethernet.
The utlity model has following advantage:
Native system can be with the electric current and voltage of the battery pack of all transformer stations, charge-discharge test, the internal resistance test, volume test, electric voltage equalization, the voltage stabilization and current stabilization ripple factor of charging device etc. is embedded into to be got involved in the electric system of height system in a system, realizes that the unitized management of electric system seven large ingredients is controlled, and makes and only can complete with a mouse the test of standby power supply and peripheral equipment.
Description of drawings
Fig. 1 is system architecture diagram of the present utility model.
Fig. 2 is the configuration schematic diagram of certain transformer station in supervisory system of the present utility model.
Fig. 3 gathers the balanced block diagram that waits of electric current and voltage internal resistance in supervisory system of the present utility model.
Fig. 4 is the block diagram of test charging set characteristic in supervisory system of the present utility model.
Fig. 5 is the block diagram of discharge equipment in supervisory system of the present utility model.
Embodiment
The utility model real-time inspection and control system comprises monitoring host computer, voltage balancing module, battery pack to be measured, charging set, discharge load, video system and mobile communication module; Monitoring host computer is connected to the electrical network Central Control Room to realize network remote monitoring by electric system private network or Ethernet; Monitoring host computer adopts high precision DXP chip to build, and is the intelligent kernel part of native system, can monitor the correlation parameter of modules, can to the modules transmitting order to lower levels, can demonstrate each parameter value by color/graphics.Monitoring host computer is connected as shown in Figure 1 with each functional module is organic.
Voltage balancing module: this module can realize the electric current and voltage collection to electric battery, internal resistance measurement, and the functions such as equalizing voltage, as shown in Figure 3.This part function is controlled each unit module by the monitoring host computer of high precision DXP chip.Each voltage of accumulator is completed by the high-precision A/D acquisition system of high precision DXP chip internal, electric current is by the Hall element collection, the measurement of internal resistance uses high precision Special precision resistance TR100 series to put a method test by pulse, balance module is come the voltage of balanced every batteries by high precision DXP chip, make all voltages be tending towards unified, voltage difference is very little, within being controlled at 3mV.All unit modules all adopt 485 communications to be connected with main frame.
The charge characteristic test is mainly the precision of voltage regulation, precision of steady current and the ripple factor of test charging cabinet.As shown in Figure 4, monitoring host computer is connected with charging cabinet by the charge characteristic test module.The charge characteristic test module improves the precision of electric current and voltage and ripple with the sample frequency of 20M, with three AD8607 and AD707 with gather three parameters of charging module, the high precision DXP chip that will collect data and monitoring host computer inside by the ADM2483 chip afterwards exchanges.To obtain a result by MAX3232 in the demonstration screen display of monitoring host computer after data operation or be transferred to Ethernet by communication unit at last.
Discharge load is one of necessary equipment of battery maintenance.As shown in Figure 5, discharge load and battery pack are together in parallel by the topworks of monitoring host computer, and it is the battery pack discharge that the staff can operate by monitoring host computer or network, thereby test out the accurate capacity of battery.Control the control mouth that order can be sent in discharge load by on-site supervision main frame or network remote, come controlled discharge.After sending to discharge load from the order of scene or network by 485 communication modes, the state that load will send to order topworks to switch battery begins discharge subsequently, will follow the discharge system of setting in discharge process, and in good time collection voltage and the constancy of coming the duty of the CMOS pipe in the controlled discharge load recently to regulate electric current by regulating inner PWM.I in discharge process, U, C, the parameters such as H can by the ENC28J60 network interface real-time be passed to Ethernet, to realize Long-distance Control.
In native system, monitoring host computer leaves video port, can directly access video heads, and the sight at scene is arrived the electrical network Central Control Room by Internet Transmission, makes the staff know Chu just can seeing clearly the scene thousands of miles away.Use the powerful data exchange ability of high precision DXP chip controls chip by the ADM2483 chip, image to be received and come then to pass through the TCP/IP Internet Transmission to the electrical network Central Control Room by the ENC28J60 network interface, like this, on-the-spot situation has just covered all at one glance.
In addition, native system also is equipped with the mobile communication module, make accumulator no matter in charged state or in discharge condition, or usual floating charge state, the staff sends at any time note and obtains real-time system information, and communication module will send failure message timely when system sends fault.The mobile communication module is used state-of-the-art by MAX3232 chip serial mode and the communication of main control chip high precision DXP chip, the mode of all information with note can be received and sends.
Claims (4)
1. the real-time inspection and control system of accumulator equipment in a DC power system, is characterized in that: comprise battery pack to be measured, charging set, monitoring host computer and the voltage balancing module of communicating by letter with monitoring host computer by corresponding RS485 interface respectively, charge characteristic test module, discharge load, video system and mobile communication module; Monitoring host computer is connected to the electrical network Central Control Room to realize network remote monitoring by electric system private network or Ethernet;
Monitoring host computer adopts the DXP chip as control core, and voltage balancing module is by the voltage of DXP chip controls with the electric current and voltage collection, internal resistance measurement and the balanced battery pack to be measured that realize battery pack to be measured; Discharge load and battery pack to be measured are together in parallel by the topworks of monitoring host computer; The charge characteristic test module is connected to realize the collection respectively to the precision of voltage regulation, precision of steady current and ripple factor with charging set, and is connected with the DXP chip by the data exchange processing module; The VT of video system also is connected to the DXP chip; The data output end of DXP chip is connected with the mobile communication module with the display screen of monitoring host computer by the MAX3232 chip.
2. real-time inspection and control according to claim 1 system, it is characterized in that: the voltage acquisition of described battery pack to be measured is to be completed by the A/D acquisition system of DXP chip internal, current acquisition is by the Hall element collection, and internal resistance measurement is the circuit structure that includes Special precision resistance TR100 series that adopts according to the setting of pulsed discharge method; The voltage output end of each batteries of battery pack to be measured all consists of feedback control circuit with DXP chip and charging set.
3. real-time inspection and control according to claim 1 system, it is characterized in that: be provided with the CMOS pipe as breakover element in described discharge load, the DXP chip adopts the dutycycle of the CMOS pipe in the load of PWM controlled discharge to keep constant to regulate electric current.
4. real-time inspection and control according to claim 1 system, it is characterized in that: described monitoring host computer adopts the ENC28J60 network interface to be connected with electric system private network or Ethernet.
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201220706948 CN202975282U (en) | 2012-12-19 | 2012-12-19 | Real-time monitoring control system of storage battery equipment in direct current power supply system |
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| CN 201220706948 CN202975282U (en) | 2012-12-19 | 2012-12-19 | Real-time monitoring control system of storage battery equipment in direct current power supply system |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103941193A (en) * | 2014-04-22 | 2014-07-23 | 南通苏宝建筑节能科技有限公司 | Online monitoring system for storage battery set through mobile phone |
| CN104198836A (en) * | 2014-08-06 | 2014-12-10 | 国家电网公司 | Novel output parameter detection device for direct-current system charge device of transformer substation |
| CN104635053A (en) * | 2015-03-16 | 2015-05-20 | 银联商务有限公司 | Storage battery internal resistance measurement device and method |
| CN104701898A (en) * | 2013-12-04 | 2015-06-10 | 哈尔滨智木科技有限公司 | Balanced charger based on internal resistance of battery |
| CN105403841A (en) * | 2015-10-30 | 2016-03-16 | 国网河南省电力公司平顶山供电公司 | Electric power storage battery DC test system and test method |
| CN106443479A (en) * | 2016-10-26 | 2017-02-22 | 深圳供电局有限公司 | Intelligent monitoring system for storage battery |
| CN107390142A (en) * | 2017-09-13 | 2017-11-24 | 国网黑龙江省电力有限公司佳木斯供电公司 | Transforming plant DC power supply status monitoring system and the method for power supply status monitoring |
| CN112332480A (en) * | 2020-10-23 | 2021-02-05 | 国网江苏省电力有限公司扬州供电分公司 | Distribution network storage battery pack online monitoring device |
| CN113049967A (en) * | 2021-03-11 | 2021-06-29 | 杭州惠嘉信息科技有限公司 | Direct current system on-line monitoring system |
-
2012
- 2012-12-19 CN CN 201220706948 patent/CN202975282U/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104701898A (en) * | 2013-12-04 | 2015-06-10 | 哈尔滨智木科技有限公司 | Balanced charger based on internal resistance of battery |
| CN103941193A (en) * | 2014-04-22 | 2014-07-23 | 南通苏宝建筑节能科技有限公司 | Online monitoring system for storage battery set through mobile phone |
| CN104198836A (en) * | 2014-08-06 | 2014-12-10 | 国家电网公司 | Novel output parameter detection device for direct-current system charge device of transformer substation |
| CN104635053A (en) * | 2015-03-16 | 2015-05-20 | 银联商务有限公司 | Storage battery internal resistance measurement device and method |
| CN105403841A (en) * | 2015-10-30 | 2016-03-16 | 国网河南省电力公司平顶山供电公司 | Electric power storage battery DC test system and test method |
| CN106443479A (en) * | 2016-10-26 | 2017-02-22 | 深圳供电局有限公司 | Intelligent monitoring system for storage battery |
| CN107390142A (en) * | 2017-09-13 | 2017-11-24 | 国网黑龙江省电力有限公司佳木斯供电公司 | Transforming plant DC power supply status monitoring system and the method for power supply status monitoring |
| CN107390142B (en) * | 2017-09-13 | 2023-08-15 | 国网黑龙江省电力有限公司佳木斯供电公司 | Transformer substation direct-current power supply state monitoring system and power supply state monitoring method |
| CN112332480A (en) * | 2020-10-23 | 2021-02-05 | 国网江苏省电力有限公司扬州供电分公司 | Distribution network storage battery pack online monitoring device |
| CN113049967A (en) * | 2021-03-11 | 2021-06-29 | 杭州惠嘉信息科技有限公司 | Direct current system on-line monitoring system |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130605 Termination date: 20141219 |
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| EXPY | Termination of patent right or utility model |