CN217278829U - Detection device for battery separation from direct current power supply system - Google Patents

Detection device for battery separation from direct current power supply system Download PDF

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Publication number
CN217278829U
CN217278829U CN202220620084.9U CN202220620084U CN217278829U CN 217278829 U CN217278829 U CN 217278829U CN 202220620084 U CN202220620084 U CN 202220620084U CN 217278829 U CN217278829 U CN 217278829U
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storage battery
battery
power supply
positive
preset
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CN202220620084.9U
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Inventor
白红娜
白湘玮
刘晖
李刚
朱天昊
付荣荣
曹景雷
张蕊
赵化宾
陆剑
侯言兵
王禹
孟冰冰
张硕
李德正
柴杨
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Liaocheng Power Supply Co of State Grid Shandong Electric Power Co Ltd
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Liaocheng Power Supply Co of State Grid Shandong Electric Power Co Ltd
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10Energy storage using batteries

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Abstract

The utility model provides a battery breaks away from direct current power supply system detection device, include: the display touch screen is arranged on the shell; the single chip microcomputer is connected with the storage battery voltage acquisition module and used for acquiring the output voltage of the storage battery; the single chip microcomputer is connected with the floating charge current acquisition module to acquire a floating charge current signal of the storage battery, the acquired floating charge current is lower than 50% of a preset floating charge current, and the alarm module alarms when the preset time duration is continued; the single chip microcomputer records the duration preset time length which is lower than the preset floating charge current, the time point and the time period which are lower than the preset floating charge current through the timing module, and stores the duration preset time length and the time period through the storage; the device has realized automatic monitoring and automatic alarm's function, has reduced the monitoring personnel and has arrived to judge the abnormal time in station, has improved the precision of control, can accomplish to monitor of battery state in real time, avoids causing the protection to refuse to move, the unable isolated fault of circuit breaker, accident range expansion scheduling problem.

Description

Detection device for battery separation from direct current power supply system
Technical Field
The utility model relates to a battery test technical field especially relates to a battery breaks away from direct current power supply system detection device.
Background
The storage battery is an important power supply element in the direct current system, and when the station loses power with alternating current or the direct current charging device fails, the storage battery provides a standby power supply for the direct current system, so that the problems of protection failure, failure isolation of a breaker, expansion of an accident range and the like are avoided.
In the prior art, when the direct current power supply system for the transformer substation is operated, the storage battery pack is not allowed to be separated from the direct current system. The existing direct current system contains a centralized monitor, but the existing direct current system cannot be specially used for detecting the condition that the storage battery is separated from the direct current system. At present, the connection of a storage battery is monitored by a direct current power supply system generally through fuse disconnection of a fuse of the storage battery to give an alarm signal, the monitoring method only monitors and pre-warns the performance parameters of the storage battery, but does not combine a storage battery pack with the direct current system for monitoring and analyzing, whether the storage battery is connected on a direct current bus cannot be monitored, the protection is easy to reject, and a breaker cannot isolate faults.
SUMMERY OF THE UTILITY MODEL
The utility model provides a can accurate warning to can definitely judge the battery that the battery breaks away from the direct current system fault and break away from direct current power supply system detection device.
The device comprises: the device comprises a shell, wherein a floating charge current acquisition module, a storage battery voltage acquisition module, a storage device, an alarm module, a timing module and a single chip microcomputer are arranged in the shell;
a display touch screen is arranged on the shell;
the single chip microcomputer is connected with the storage battery voltage acquisition module and used for acquiring the output voltage of the storage battery;
the single chip microcomputer is connected with the floating charge current acquisition module to acquire a floating charge current signal of the storage battery, the acquired floating charge current is lower than 50% of a preset floating charge current, and the alarm module alarms when the preset time duration is continued;
the single chip microcomputer records the duration preset time length which is lower than the preset floating charge current, the time point and the time period which are lower than the preset floating charge current through the timing module, and stores the duration preset time length and the time period through the storage;
the singlechip is connected with the display touch screen, and displays the running states of the device and the storage battery.
It should be further noted that the display touch screen adopts a 7.0 inch screen, and has a TFT full-touch liquid crystal screen with 800 × 480 resolution, and has a full-screen drawing function of 30fps or more.
It should be further noted that a fault warning lamp is arranged on the display touch screen.
It should be further noted that a storage battery temperature sensing module is also arranged inside the shell;
the single chip microcomputer is connected with the storage battery temperature sensing module, collects storage battery temperature information, and gives an alarm through the alarm module when the storage battery temperature information exceeds a preset temperature threshold value and lasts for a preset time period.
It should be further noted that the single chip microcomputer collects the output voltage of the storage battery through the storage battery voltage collecting module, when the duration of the voltage output by the storage battery is zero, the alarm module gives an alarm, and meanwhile, the alarm time is displayed on the display touch screen.
It should be further noted that the casing is provided with a plurality of battery positive and negative terminals and dc power supply system bus terminals the number of which is matched with the number of the battery positive and negative terminals;
the positive and negative terminals of the battery are in one-to-one correspondence with the bus terminals of the direct current power supply system, and the positive and negative terminals of the battery are electrically connected with the bus terminals of the direct current power supply system;
the storage battery is connected with a power supply line of the direct current power supply system through a positive terminal and a negative terminal of the battery and a bus terminal of the direct current power supply system, so that the storage battery is used as a standby power supply of the direct current power supply system.
It is further noted that a positive power supply circuit is arranged between the positive electrode of the storage battery and the positive electrode of the positive and negative terminals of the storage battery;
a negative power supply circuit is arranged between the negative electrode of the storage battery and the negative electrodes of the positive and negative terminals of the storage battery;
the positive power supply circuit is provided with a positive safety mechanism;
a negative electrode safety mechanism is arranged on the negative electrode power supply circuit;
the single chip microcomputer is respectively connected with the positive electrode safety mechanism and the negative electrode safety mechanism, when the positive electrode safety mechanism or the negative electrode safety mechanism acts, action information is obtained, the action information of the positive electrode safety mechanism or the action information of the negative electrode safety mechanism is displayed on the display touch screen, and meanwhile, an alarm module gives an alarm.
It should be further noted that the alarm module is provided with alarm lamp sets the number of which is matched with the number of the positive and negative terminals of the battery;
the alarm lamp set is provided with a green normal operation lamp and a red alarm lamp.
It should be further noted that the display touch screen is provided with control keys;
the single chip microcomputer is connected with the control key to acquire the continuous preset duration information of the preset float current set by the user, the preset float current information and the parameter setting information of the device, and the information set by the user is displayed on the display touch screen.
According to the technical scheme, the utility model has the advantages of it is following:
the utility model acquires the float charge current signal of the storage battery, the acquired float charge current is lower than 50% of the preset float charge current, and the alarm module alarms when the preset time is continued; the device also records the duration preset time length which is less than the preset floating charging current through the timing module, records the time point and the time period which are less than the preset floating charging current, and stores the time point and the time period through the storage device, so that monitoring personnel can check fault information and fault time. The device realizes the functions of automatic monitoring and automatic alarming, reduces the time for monitoring personnel to judge abnormal arrival, and effectively reduces the workload of the working personnel. And the device realizes the control to the battery based on the signal of telecommunication between battery positive and negative terminal and the direct current power supply system bus-bar terminal, has improved the precision of control, can accomplish to monitor the battery state in real time, avoids causing the protection to refuse to move, the unable isolated fault of circuit breaker, accident range expansion scheduling problem.
The device can also collect the temperature information of the storage battery, when the temperature information of the storage battery exceeds a preset temperature threshold value and continues to preset time length, the alarm module gives an alarm to prompt monitoring personnel to timely process the temperature information of the storage battery.
Drawings
In order to more clearly illustrate the technical solution of the present invention, the drawings required for use in the description will be briefly introduced below, and it is apparent that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic diagram of a detection device for detecting the separation of a storage battery from a DC power supply system;
fig. 2 is a schematic diagram of an embodiment of a detection device for detecting the battery being out of the dc power supply system.
Detailed Description
In order to make the objects, features and advantages of the present invention more obvious and understandable, the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments, and obviously, the embodiments described below are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments in this patent without making creative efforts, shall fall within the protection scope of this patent.
The utility model provides a battery breaks away from direct current power supply system detection device, as shown in fig. 1 and fig. 2, include: the device comprises a shell 1, wherein a float charge current acquisition module 2, a storage battery voltage acquisition module 3, a storage 4, an alarm module 5, a timing module 6 and a single chip microcomputer 7 are arranged in the shell 1;
a display touch screen is arranged on the shell 1; the display touch screen adopts a 7.0-inch 800 multiplied by 480-resolution TFT full-touch liquid crystal screen, and has the flicker-free whole-screen drawing capability of more than 30 fps. The method has the full Chinese planarization scene menu design and is simple, quick and convenient to use. The running lamp 1s flickers once when the device is normal, and when a fault occurs, the warning lamp on the display touch screen is on for a long time. The inside wireless communication module that is equipped with of casing 1 can with host computer remote communication. Remote monitoring software is installed in the storage 4 and used for remotely monitoring the operation information of the direct current power supply system of the transformer substation, and parameters, real-time alarm information display and query, historical data display, various reports and operation curves can be generated.
The storage 4 of the device can store a plurality of fault records, the latest fault record is automatically displayed when the fault record is checked each time, if the device runs in a main picture state, the system finds new alarm information, the screen is automatically switched to a fault record checking screen, and an alarm indicator lamp is lightened to prompt a user that a new alarm exists.
A storage battery temperature sensing module is also arranged in the shell 1; the single chip microcomputer 7 is connected with the storage battery temperature sensing module, collects storage battery temperature information, and gives an alarm through the alarm module 5 when the storage battery temperature information exceeds a preset temperature threshold value and continues to preset time duration.
The display touch screen can adopt a TFT full-touch liquid crystal screen, and is provided with control keys; the single chip microcomputer 7 is connected with the control key to acquire the continuous preset duration information of the preset floating charge current set by the user, preset floating charge current information and parameter setting information of the device, and display the setting parameters of the user on the display touch screen. The device can gather and show complete direct current system simulation diagram under the normal condition, and trouble voltage or electric current are gathered to the device, can automatic judgement fault information, with trouble storage battery trouble telesignalling, telemeasuring data isoparametric demonstration on the display screen, the alarm lamp is bright simultaneously, the buzzer sounds, fault information passes through the communication network line and transmits to the host computer, reminds the monitoring personnel trouble condition.
The single chip microcomputer 7 may be implemented by using at least one of an Application Specific Integrated Circuit (ASIC), a Digital Signal Processor (DSP), a Digital Signal Processing Device (DSPD), a Programmable Logic Device (PLD), a Field Programmable Gate Array (FPGA), a processor, a controller, a microcontroller, a microprocessor, and an electronic unit designed to perform the functions described herein, and in some cases, such an implementation may be implemented in the controller. For a software implementation, the implementation such as a process or a function may be implemented with a separate software module that allows performing at least one function or operation. The software codes may be implemented by software applications (or programs) written in any suitable programming language, which may be stored in memory and executed by the controller.
The single chip microcomputer 7 is connected with the storage battery voltage acquisition module 3 and acquires the output voltage of the storage battery; the single chip microcomputer 7 is connected with the floating charge current acquisition module 2 to acquire a floating charge current signal of the storage battery, the acquired floating charge current is lower than 50% of a preset floating charge current, and the alarm module 5 alarms when the preset time duration is continued;
the singlechip 7 records the duration preset time length lower than the preset floating charge current, the time point and the time period lower than the preset floating charge current through the timing module 6, and stores the duration preset time length, the time point and the time period lower than the preset floating charge current through the storage 4; the singlechip 7 is connected with the display touch screen to display the running states of the device and the storage battery.
Specifically, the lower current limit is a float current lower limit setting, and the alarm value is set to a float current 50% on site. And sending an alarm when the float current is reduced to be below 50 percent from the normal value after the setting is finished. The recommended value of the time of the departure delay alarm is 600 seconds, namely when the float current is reduced to below 50 percent from a normal value, the alarm is given after the time exceeds 600 seconds.
The utility model discloses in, the singlechip passes through battery voltage collection module and gathers battery output voltage, and when the voltage of battery output lasts to predetermine time length and is zero, reports to the police through alarm module, shows alarm time simultaneously on showing the touch-sensitive screen. The device can also judge the running state of the storage battery by monitoring the output voltage of the storage battery, and can give an alarm for prompting if the output voltage of the storage battery is abnormal.
Furthermore, a plurality of battery positive and negative terminals 8 and direct current power supply system bus terminals 9 the number of which is matched with that of the battery positive and negative terminals 8 are arranged on the shell 1; the positive and negative terminals 8 of the battery correspond to the bus terminals 9 of the direct current power supply system one by one, and the positive and negative terminals 8 of the battery are electrically connected with the bus terminals 9 of the direct current power supply system; the storage battery is connected with a power supply line of the direct current power supply system through a positive terminal 8 and a negative terminal 8 of the battery and a bus terminal 9 of the direct current power supply system, so that the storage battery is used as a standby power supply of the direct current power supply system.
Specifically, the battery positive and negative terminals 8 and the dc power supply system bus terminal 9 form a path, and the storage battery can be used as a backup power supply of the dc power supply system through the battery positive and negative terminals 8 and the dc power supply system bus terminal 9. The device realizes the monitoring of the storage battery based on the electric signal between the positive and negative terminals 8 of the battery and the bus terminal 9 of the direct current power supply system.
Furthermore, a positive power supply circuit is arranged between the positive electrode of the storage battery and the positive electrode of the positive and negative terminals 8 of the storage battery; a negative power supply circuit is arranged between the negative electrode of the storage battery and the negative electrode of the positive and negative terminals 8 of the storage battery; the positive power supply circuit is provided with a positive safety mechanism; a negative electrode safety mechanism is arranged on the negative electrode power supply circuit; the single chip microcomputer 7 is respectively connected with the positive electrode safety mechanism and the negative electrode safety mechanism, when the positive electrode safety mechanism or the negative electrode safety mechanism acts, action information is obtained, the action information of the positive electrode safety mechanism or the action information of the negative electrode safety mechanism is displayed on the display touch screen, and meanwhile, an alarm is given through the alarm module 5. When the positive electrode safety mechanism or the negative electrode safety mechanism acts, the device can sense and judge that the positive electrode end or the negative electrode end of the storage battery breaks down, and timely gives an alarm.
The alarm module 5 is provided with alarm lamp sets the number of which is matched with that of the positive and negative terminals 8 of the battery; the warning lamp set is provided with a green normal operation lamp 10 and a red warning lamp 11.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (9)

1. A detection device for a battery separation from a DC power supply system is characterized by comprising: the device comprises a shell, wherein a float charge current acquisition module, a storage battery voltage acquisition module, a storage device, an alarm module, a timing module and a single chip microcomputer are arranged in the shell;
a display touch screen is arranged on the shell;
the single chip microcomputer is connected with the storage battery voltage acquisition module to acquire the output voltage of the storage battery;
the single chip microcomputer is connected with the floating charge current acquisition module to acquire a floating charge current signal of the storage battery, and when the acquired floating charge current is lower than 50% of a preset floating charge current and lasts for a preset time length, an alarm module alarms;
the single chip microcomputer records a continuous preset duration which is lower than a preset floating charge current through the timing module, records a time point and a time period which are lower than the preset floating charge current, and stores the time point and the time period through the storage;
the single chip microcomputer is connected with the display touch screen and displays the running states of the detection device and the storage battery.
2. The battery out-of-DC-supply-system detecting device according to claim 1,
the display touch screen adopts a TFT full-touch liquid crystal screen with 800 multiplied by 480 resolution, and has a full-screen drawing function of more than 30 fps.
3. The battery out-of-DC-supply-system detecting device according to claim 2,
and a fault warning lamp is arranged on the display touch screen.
4. The battery out-of-DC-supply-system detecting device according to claim 1,
a storage battery temperature sensing module is also arranged in the shell;
the single chip microcomputer is connected with the storage battery temperature sensing module, collects storage battery temperature information, and gives an alarm through the alarm module when the storage battery temperature information exceeds a preset temperature threshold value and lasts for a preset time period.
5. The apparatus for detecting battery detachment from a DC power supply system according to claim 1,
the single chip microcomputer collects the output voltage of the storage battery through the storage battery voltage collecting module, when the duration of the voltage output by the storage battery is zero, the alarm module gives an alarm, and meanwhile, the alarm time is displayed on the display touch screen.
6. The battery out-of-DC-supply-system detecting device according to claim 1,
the shell is provided with a plurality of battery positive and negative terminals and direct current power supply system bus terminals the number of which is matched with that of the battery positive and negative terminals;
the positive and negative terminals of the battery are in one-to-one correspondence with the bus terminals of the direct current power supply system, and the positive and negative terminals of the battery are electrically connected with the bus terminals of the direct current power supply system;
the storage battery is connected with a power supply line of the direct current power supply system through a positive terminal and a negative terminal of the battery and a bus terminal of the direct current power supply system, so that the storage battery is used as a standby power supply of the direct current power supply system.
7. The battery out-of-DC-supply-system detecting device according to claim 6,
a positive power supply circuit is arranged between the positive electrode of the storage battery and the positive electrode of the positive and negative terminals of the storage battery;
a negative power supply circuit is arranged between the negative electrode of the storage battery and the negative electrodes of the positive and negative terminals of the storage battery;
the positive power supply circuit is provided with a positive safety mechanism;
a negative electrode safety mechanism is arranged on the negative electrode power supply circuit;
the single chip microcomputer is respectively connected with the positive electrode safety mechanism and the negative electrode safety mechanism, when the positive electrode safety mechanism or the negative electrode safety mechanism acts, action information is obtained, the action information of the positive electrode safety mechanism or the action information of the negative electrode safety mechanism is displayed on the display touch screen, and meanwhile, an alarm module gives an alarm.
8. The battery out-of-DC-supply-system detecting device according to claim 6,
the alarm module is provided with alarm lamp groups the number of which is matched with the number of the positive and negative terminals of the battery;
the alarm lamp set is provided with a green normal operation lamp and a red alarm lamp.
9. The battery-off DC-supply-system detecting device according to claim 1 or 2,
the display touch screen is provided with a control key;
the single chip microcomputer is connected with the control key to acquire the continuous preset duration information of the preset float current set by the user, the preset float current information and the parameter setting information of the device, and the information set by the user is displayed on the display touch screen.
CN202220620084.9U 2022-03-21 2022-03-21 Detection device for battery separation from direct current power supply system Active CN217278829U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202220620084.9U CN217278829U (en) 2022-03-21 2022-03-21 Detection device for battery separation from direct current power supply system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202220620084.9U CN217278829U (en) 2022-03-21 2022-03-21 Detection device for battery separation from direct current power supply system

Publications (1)

Publication Number Publication Date
CN217278829U true CN217278829U (en) 2022-08-23

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ID=82869544

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202220620084.9U Active CN217278829U (en) 2022-03-21 2022-03-21 Detection device for battery separation from direct current power supply system

Country Status (1)

Country Link
CN (1) CN217278829U (en)

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