CN205157750U - Direct current back -up source capacity detection device - Google Patents
Direct current back -up source capacity detection device Download PDFInfo
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- CN205157750U CN205157750U CN201520992067.8U CN201520992067U CN205157750U CN 205157750 U CN205157750 U CN 205157750U CN 201520992067 U CN201520992067 U CN 201520992067U CN 205157750 U CN205157750 U CN 205157750U
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Abstract
The utility model discloses a direct current back -up source capacity detection device, including control switch, controller, communication module and voltage testing, control switch installs on the NULL return circuit, the output voltage of voltage testing postdetection stand -by power source uploads the controller, controller control control switch's break -make, whether the poor lasting power supply capacity of judging the direct current back -up source of branch / makeing time of calculating control switch meets the demands, communication module passes to master station on with the signal gathered and testing result. The utility model discloses an automatic control device carries out automated inspection to the direct current back -up source and the performance is judged, master station judges direct current back -up source performance and form the statement that the maintainer of being convenient for in time deals with through detecting data, has also avoided artifical measuring or internal resistance measuring etc. To need human intervention, shortcoming such as with high costs, reduces the fault rate of back -up source when really using, improves the power supply system reliability, testing process automatic control, detection efficiency is high.
Description
Technical field
The utility model is specifically related to a kind of DC back-up power supply capacity checking apparatus.
Background technology
DC back-up power supply is that electric grid secondary equipment runs indispensable important component part, and its performance is directly connected to the safe and stable operation of supply network.According to existing regulations stipulate: power distribution automation DC back-up power supply can ensure the continuous service of station equipment after system primary power source de-energizes at least 4 hours.Therefore, the power-on time of DC back-up power supply of having no progeny in the mains supply can be used as and calculates back-up source capacity and the important parameter judging back-up source quality.
Present stage, the connected mode of DC back-up power supply and AC power is as shown in Figure 1: alternating current 220V power supply is connected DC back-up power supply by AC/DC conversion equipment, simultaneously another road DC output end coupling arrangement power supply, operating power even load of AC/DC conversion equipment.DC back-up power supply adopts accumulator or super capacitor etc. as energy storage device usually.Can see, when electrical network normally runs, DC back-up power supply is in floating charge state always, and the power supply of load is supplied by AC/DC conversion equipment by 220V alternating current always; Once alternating current 220V power outage, then DC-AC conversion device is converted to immediately and is powered to installation's power source, operating power even load by DC back-up power supply, after alternating current 220V service restoration, Power supply mode recovers normal condition, alternating current 220V power supply is DC back-up power supply charging simultaneously, to keep the electricity of back-up source sufficient.
But the energy storage device of DC back-up power supply in use for some time, all can produce the decline of performance; DC back-up power supply is in floating charge state always under normal circumstances, as AC-less power dead electricity situation occurs, is generally difficult to the performance quality judging DC back-up power supply; Now conventional means are manual detection, namely maintainer's timing is patrolled the DC back-up power supply at each station, adopt mode manually, discharge and recharge test is carried out to DC back-up power supply, and manually record test figure, analyze DC back-up power supply performance quality, this method wastes time and energy, work effect is affected by human factors greatly, and efficiency is extremely low; Another kind is the performance being confirmed DC back-up power supply by the mode of internal resistance detection, but internal resistance on-Line Monitor Device (system) complex structure, with high costs, and be only applicable to accumulator, the scope of application is extremely limited.
Summary of the invention
The purpose of this utility model is to provide a kind of with low cost, function and structure is simple, automaticity is high DC back-up power supply capacity checking apparatus.
This DC back-up power supply capacity checking apparatus that the utility model provides, comprises gauge tap, controller, communication module and voltage detection module; Gauge tap is arranged on 220V ac input circuit; The voltage signal detected for detecting the output voltage of DC back-up power supply, and is uploaded controller by voltage detection module; Controller is for controlling the break-make of gauge tap, gather the output voltage of DC back-up power supply and gauge tap point/"on" position, by calculate gauge tap point/closing time difference judges the continued power ability of DC back-up power supply, to detect the continued power time of DC back-up power supply; The signal of controller collection and the continued power time of the DC back-up power supply detected are uploaded to master station by communication module.
Described DC back-up power supply capacity checking apparatus also comprises master station, master station is used for the data message that received communication module is uploaded, by by detect after the DC back-up power supply continued power time and system in setting value comparison, draw the equipment not meeting service requirement, and instruct operation maintenance personnel to carry out the work with report form.
The electric energy of described DC back-up power supply capacity checking apparatus directly obtains from the input port of voltage detection module.
Described controller is single-chip microcomputer, FPGA, DSP, PLC or Special industrial controller.
Described communication module is wire communication module or wireless communication module.
Described gauge tap is relay or contactor.
Described wire communication module is industrial bus communication module or fiber optic telecommunications module.
Described wireless communication module is GPRS communication module.
The utility model adopts automaton automatically to detect and performance judgment DC back-up power supply, avoids artificial to detect or the detection means such as internal resistance detection needs human intervention, the shortcoming such as with high costs; Automatic technology is adopted to detect DC back-up power supply, testing process whole-process automatic control, Cleaning Principle is combined closely related request in electric network operation code, Detection results is good, detection efficiency is high, be applicable to all kinds of DC back-up power supply energy storage device (comprising accumulator, lithium battery, ultracapacitor etc.), effectively can take precautions against the situation that DC back-up power supply under failure condition effectively cannot power to load and occur.The utility model only comprises existing simple components and parts, with low cost, is convenient to promote.
Accompanying drawing explanation
Fig. 1 is the circuit connection diagram of background technology.
Fig. 2 is the functional block diagram of a kind of embodiment of the present utility model.
Fig. 3 is circuit connection diagram of the present utility model.
Embodiment
As shown in Figure 2, be the functional block diagram of a kind of embodiment of the present utility model: this DC back-up power supply capacity checking apparatus that the present embodiment provides is made up of controller, communication module, gauge tap and voltage detection module; The voltage signal detected for detecting the output voltage of DC back-up power supply, and is uploaded controller by voltage detection module; Controller receives the control signal of master station by communication module, starts the detection operation of DC back-up power supply: when detecting beginning, and controller disconnects gauge tap, and alternating current input power supplying disconnects, now DC back-up power supply powering load; When the output voltage of DC back-up power supply is lower than limit value, controller Closed control switch, recover Alternating Current Power Supply, and by communication module by gauge tap point/switching signal uploads master station, master station divides by calculating gauge tap/and the performance of switching signal mistiming T to DC back-up power supply judge, to detect the capacity of DC back-up power supply; Master station draws the equipment not meeting service requirement, and instructs operation maintenance personnel to carry out the work with report form.
Controller self also can according to gauge tap point/switching signal mistiming T detects the performance of DC back-up power supply and capacity, and by communication module, testing result uploaded to master station.
The electric energy of DC back-up power supply capacity checking apparatus directly obtains from the input port of voltage detection module; Controller can adopt single-chip microcomputer, FPGA, DSP, PLC or Special industrial controller; Communication module can adopt wire communication module or wireless communication module, and wire communication can adopt industrial bus communication mode or optical fiber communication mode, and radio communication can adopt GPRS to communicate; Gauge tap can adopt relay or contactor.
As shown in Figure 3, be circuit connection diagram of the present utility model: gauge tap of the present utility model is serially connected in the 220V AC power of station electricity consumption, and adopt normally closed contact, voltage detection module is connected to the input power port of load.
The course of work of DC back-up power supply capacity checking apparatus is as follows: under normal operation, gauge tap closes, alternating current 220V power supply input AC/DC conversion equipment, the DC output end DC power output of AC/DC conversion equipment is powered to apparatus of load, and DC back-up power supply is floating charge state simultaneously; Master station detects each website DC back-up power supply by timing automatic or manual mode.Steering order is passed to controller by the communication module of DC back-up power supply capacity checking apparatus by master station, controller controls gauge tap and disconnects alternating current 220V power supply, gauge tap sub-gate signal is uploaded master station simultaneously, the now ac input end power-off of AC/DC conversion equipment, AC/DC conversion equipment starts DC back-up power supply immediately, utilizes DC back-up power supply directly to power to apparatus of load; Now the voltage detection module of DC back-up power supply capacity checking apparatus continues the voltage detecting DC back-up power supply; DC back-up power supply continuous discharge, until sparking voltage is lower than the lower limit of setting, controller controls gauge tap immediately and closes, and recovers ac power supply (i.e. normal power supply), and completes this capacity check.The switching signal of gauge tap is uploaded master station by communication module by controller; Master station by calculate gauge tap point/performance of switching signal mistiming T to DC back-up power supply judge.
Controller self also can according to gauge tap point/switching signal mistiming T detects the performance of DC back-up power supply and capacity, and by communication module, testing result uploaded to master station.
Claims (8)
1. a DC back-up power supply capacity checking apparatus, is characterized in that comprising gauge tap, controller, communication module and voltage detection module; Gauge tap is arranged on 220V ac input circuit; The voltage signal detected for detecting the output voltage of DC back-up power supply, and is uploaded controller by voltage detection module; Controller is for controlling the break-make of gauge tap, gather the output voltage of DC back-up power supply and gauge tap point/"on" position, by calculate gauge tap point/closing time difference judges whether meet the demands the continued power ability of DC back-up power supply with the capacity detecting DC back-up power supply; The signal of controller collection and the continued power time of the DC back-up power supply detected are uploaded to master station by communication module.
2. DC back-up power supply capacity checking apparatus according to claim 1, characterized by further comprising master station, master station is used for the capacity of the standby electric capacity that received communication module is uploaded and the signal of controller collection, calculated the continued power ability of back-up source by the compute relay deciliter mistiming, whether meet the demands with the capacity detecting back-up source.
3. DC back-up power supply capacity checking apparatus according to claim 1, is characterized in that the electric energy of described DC back-up power supply capacity checking apparatus directly obtains from the input port of voltage detection module.
4., according to the DC back-up power supply capacity checking apparatus one of claim 1 ~ 3 Suo Shu, it is characterized in that described controller is single-chip microcomputer, FPGA, DSP, PLC or Special industrial controller.
5., according to the DC back-up power supply capacity checking apparatus one of claim 1 ~ 3 Suo Shu, it is characterized in that described communication module is wire communication module or wireless communication module.
6., according to the DC back-up power supply capacity checking apparatus one of claim 1 ~ 3 Suo Shu, it is characterized in that described gauge tap is relay or contactor.
7. DC back-up power supply capacity checking apparatus according to claim 5, is characterized in that described wire communication module is industrial bus communication module or fiber optic telecommunications module.
8. DC back-up power supply capacity checking apparatus according to claim 5, is characterized in that described wireless communication module is GPRS communication module.
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106093802A (en) * | 2016-06-03 | 2016-11-09 | 湖南世优电气股份有限公司 | A kind of detection method of wind power generating set exchange pitch-controlled system back-up source capacity |
CN109361261A (en) * | 2018-09-06 | 2019-02-19 | 贵州电网有限责任公司 | Online monitoring method for state of super capacitor for power distribution terminal |
CN110716835A (en) * | 2019-10-14 | 2020-01-21 | 深圳忆联信息系统有限公司 | Mobile mark automatic testing method and device and computer equipment |
-
2015
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Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106093802A (en) * | 2016-06-03 | 2016-11-09 | 湖南世优电气股份有限公司 | A kind of detection method of wind power generating set exchange pitch-controlled system back-up source capacity |
CN106093802B (en) * | 2016-06-03 | 2018-10-16 | 湖南世优电气股份有限公司 | A kind of detection method of wind power generating set exchange pitch-controlled system backup power supply capacity |
CN109361261A (en) * | 2018-09-06 | 2019-02-19 | 贵州电网有限责任公司 | Online monitoring method for state of super capacitor for power distribution terminal |
CN109361261B (en) * | 2018-09-06 | 2021-07-13 | 贵州电网有限责任公司 | Online monitoring method for state of super capacitor for power distribution terminal |
CN110716835A (en) * | 2019-10-14 | 2020-01-21 | 深圳忆联信息系统有限公司 | Mobile mark automatic testing method and device and computer equipment |
CN110716835B (en) * | 2019-10-14 | 2024-04-02 | 深圳忆联信息系统有限公司 | Mobile mark automatic test method, device and computer equipment |
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