CN215218963U - Super capacitor voltage monitoring device - Google Patents
Super capacitor voltage monitoring device Download PDFInfo
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- CN215218963U CN215218963U CN202121017310.6U CN202121017310U CN215218963U CN 215218963 U CN215218963 U CN 215218963U CN 202121017310 U CN202121017310 U CN 202121017310U CN 215218963 U CN215218963 U CN 215218963U
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Abstract
The utility model discloses a super capacitor voltage monitoring device, which comprises a host arranged beside a super capacitor cabinet of a power distribution room, and a plurality of voltage sensors, Hall current sensors and temperature sensors which are respectively connected with the host through signal wires; the charging machine is used for charging the super capacitor; the super capacitor is composed of a plurality of groups of capacitor modules connected in series; the Hall current sensor is arranged on a connecting loop of the charger and the super capacitor and used for detecting the total current of the super capacitor, the voltage sensor detects the voltage difference of the anode and the cathode of each group of capacitor modules, and the temperature sensor detects the temperature of each group of capacitor modules; and a circuit breaker is also arranged on a connecting loop of the charger and the super capacitor and is connected with the host through a signal line. The utility model discloses super capacitor voltage monitoring device has overcome the not high problem of degree of integrating that current monitoring device exists, can carry out the monitoring of voltage, temperature to every group capacitance module in the super capacitor simultaneously, can also monitor total current.
Description
Technical Field
The utility model relates to a super capacitor voltage monitoring device.
Background
Most of energy storage systems of the existing direct current buses are storage battery energy storage systems, the storage batteries are limited in charging and discharging times, the service life is short, and the problem can be solved by the super capacitor. The monitoring devices of current super capacitor energy storage system has the not high problem of degree of integrating, join in marriage a monitoring devices if a set of electric capacity, in addition, current monitoring devices only monitors the voltage and the temperature of electric capacity, does not monitor the charge-discharge total current, can not the fast reaction when the short circuit takes place for the battery inside or battery wiring, does not have total current protection promptly, in case charge current is too big, can make the electric capacity burn off, discharge current too big can make the electric capacity generate heat and excessively slow down life.
SUMMERY OF THE UTILITY MODEL
Utility model purpose: the utility model discloses to the problem that the degree of integrating that super capacitor voltage monitoring device exists is not high and do not have total current protection among the prior art, provide a super capacitor voltage monitoring device.
The technical scheme is as follows: the utility model discloses a super capacitor voltage monitoring device, which comprises a host arranged beside a super capacitor cabinet of a power distribution room, and a plurality of voltage sensors, Hall current sensors and temperature sensors which are respectively connected with the host through signal lines; the charging machine is used for charging the super capacitor; the super capacitor is composed of a plurality of groups of capacitor modules connected in series; the Hall current sensor is arranged on a connecting loop of the charger and the super capacitor and used for detecting the total current of the super capacitor, the voltage sensor detects the voltage difference of the anode and the cathode of each group of capacitor modules, and the temperature sensor detects the temperature of each group of capacitor modules; and a circuit breaker is also arranged on a connecting loop of the charger and the super capacitor and is connected with the host through a signal line.
The super capacitor is characterized in that a diode is arranged on a connecting circuit between the charger and the anode of the super capacitor, the anode of the diode is connected with the anode of the charger, and the cathode of the diode is connected with the anode of the super capacitor, so that the super capacitor can only supply power to a direct current bus.
The positive electrode of the super capacitor is connected with the positive electrode of the direct current bus, and the negative electrode of the super capacitor is connected with the negative electrode of the direct current bus.
The host comprises a CPU control chip, and a display circuit, an AD sampling circuit, an alarm circuit and a communication circuit which are respectively connected with the control chip, wherein the CPU control chip is connected with a remote control terminal through a communication module; the voltage sensors and the Hall current sensors filter the acquired voltage of each group of capacitor modules and the total current signal of the super capacitor through the filter circuit, and transmit the signals to the CPU control chip through the AD sampling circuit; the host is provided with a human-computer interaction display screen, and the CPU control chip is connected with the display screen through a display circuit; the CPU control chip is connected with the direct current breaker through a relay.
When the number of the series-connected capacitor modules exceeds 8, a plurality of multi-path switching chips are required to be arranged, and the voltage signals of each group of the capacitor modules, which are acquired by the plurality of voltage sensors, are filtered by the filter circuit and then are connected with the AD sampling chip through the multi-path switching chips.
The model of the CPU control chip is STM32F 407.
The display screen is a TFT liquid crystal screen with a touch function.
Has the advantages that: the utility model discloses super capacitor voltage monitoring device has overcome the not high problem of degree of integrating that current monitoring device exists, can carry out voltage to every group electric capacity module in the super capacitor simultaneously, the monitoring of temperature, can also monitor total current, when total current surpasss the overvoltage limit value that total current limit value or certain group's electric capacity that the liquid crystal interface set up or the temperature that is less than the low-voltage limit value that sets up or certain group's electric capacity surpasses the temperature limit value of settlement, directly break off the circuit breaker, thereby realize the protection to super capacitor.
Drawings
Fig. 1 is a schematic circuit diagram of the monitoring device of the present invention.
Detailed Description
The technical solution of the present invention will be further explained with reference to the accompanying drawings and specific embodiments.
As shown in fig. 1, the super capacitor voltage monitoring device of the present invention comprises a host disposed beside a super capacitor cabinet of a power distribution room, and a plurality of voltage sensors, hall current sensors and temperature sensors connected to the host via signal lines respectively; a plurality of capacitor modules connected in series are arranged in the super capacitor cabinet, and the super capacitor is formed by the plurality of capacitor modules connected in series; the utility model discloses super capacitor voltage monitoring devices still includes the charger that is used for charging super capacitor; the Hall current sensor is arranged on a connecting loop of the charger and the super capacitor and used for detecting the total current of the super capacitor; the voltage sensors and the capacitor modules are arranged in a one-to-one correspondence manner, namely one voltage sensor correspondingly monitors the voltage difference of the positive electrode and the negative electrode of one group of capacitor modules; the temperature sensors are also arranged in one-to-one correspondence with the capacitor modules, namely one temperature sensor correspondingly monitors the temperature of one group of capacitor modules; and a circuit breaker is also arranged on a connecting loop of the charger and the super capacitor and is connected with the host through a signal line. The voltage sensor is internally provided with a linear isolation amplifier, and the isolation amplifier adopts an AMC1300 chip which adopts a capacitance isolation gate technology.
The super capacitor is charged by the charger, the super capacitor cannot discharge electricity to the charger, and only can discharge electricity to the direct current bus.
The host comprises a CPU control chip, and a display circuit, an AD sampling circuit, an alarm circuit and a communication circuit which are respectively connected with the control chip, wherein the CPU control chip is connected with a remote control terminal through a communication module; the voltage sensors and the Hall current sensors filter the acquired voltage and total current signals of each group of capacitor modules through the filter circuit and transmit the signals to the CPU control chip through the AD sampling circuit; the host is provided with a human-computer interaction display screen, and the CPU control chip is connected with the display screen through a display circuit; the CPU control chip is connected with the direct current breaker through a relay. When the number of the series-connected capacitor modules exceeds 8, a plurality of multi-path switching chips are required to be arranged, voltage signals of each group of capacitor modules collected by a plurality of voltage sensors are filtered by a filter circuit and then are connected with an AD sampling chip by the multi-path switching chips, and temperature signals of each group of capacitor modules collected by a plurality of temperature sensors are connected with the AD sampling chip by the multi-path switching chips. The model of the CPU control chip is STM32F407, the AD sampling chip adopts a 16-Bit multi-channel AD sampling chip, and the display screen is a TFT liquid crystal screen with a touch function.
After the device is electrified and operated, a total current limit value, a temperature limit value, an overvoltage limit value (a voltage high limit value) and a low voltage limit value (a voltage low limit value) are input through a TFT liquid crystal screen with a touch function and then stored in a CPU processor, the processor acquires the voltage value, the temperature value and the total current value of the super capacitor module in turn in real time through a multi-path switching chip, and once the total current and the set total current limit value or the voltage of a certain group of capacitor modules exceed the set voltage high limit value or are lower than the set voltage low limit value or the temperature of the certain group of capacitor modules exceeds the set temperature limit value, the circuit breaker is directly disconnected, so that the super capacitor is protected. When the super capacitor energy storage system operates, the voltage of each module capacitor in the super capacitor energy storage system is monitored in real time, and the problem of system faults caused by abnormal module voltage, current and temperature is effectively prevented.
Claims (7)
1. The utility model provides a super capacitor voltage monitoring device which characterized in that: the system comprises a host arranged beside a super capacitor cabinet of a power distribution room, and a plurality of voltage sensors, Hall current sensors and temperature sensors which are respectively connected with the host through signal wires; the charging machine is used for charging the super capacitor; the super capacitor is composed of a plurality of groups of capacitor modules connected in series; the Hall current sensor is arranged on a connecting loop of the charger and the super capacitor and used for detecting the total current of the super capacitor, the voltage sensor detects the voltage difference of the anode and the cathode of each group of capacitor modules, and the temperature sensor detects the temperature of each group of capacitor modules; and a circuit breaker is also arranged on a connecting loop of the charger and the super capacitor and is connected with the host through a signal line.
2. The supercapacitor voltage monitoring device according to claim 1, wherein: and a diode is arranged on a connecting circuit between the charger and the anode of the super capacitor, the anode of the diode is connected with the anode of the charger, and the cathode of the diode is connected with the anode of the super capacitor.
3. The supercapacitor voltage monitoring device according to claim 1, wherein: the positive electrode of the super capacitor is connected with the positive electrode of the direct current bus, and the negative electrode of the super capacitor is connected with the negative electrode of the direct current bus.
4. The supercapacitor voltage monitoring device according to claim 1, wherein: the host comprises a CPU control chip, and a display circuit, an AD sampling circuit, an alarm circuit and a communication circuit which are respectively connected with the control chip, wherein the CPU control chip is connected with a remote control terminal through a communication module; the voltage sensors and the Hall current sensors filter the acquired voltage of each group of capacitor modules and the total current signal of the super capacitor through the filter circuit, and transmit the signals to the CPU control chip through the AD sampling circuit; the host is provided with a human-computer interaction display screen, and the CPU control chip is connected with the display screen through a display circuit; the CPU control chip is connected with the direct current breaker through a relay.
5. The supercapacitor voltage monitoring device according to claim 4, wherein: when the number of the series-connected capacitor modules exceeds 8, a plurality of multi-path switching chips are required to be arranged, and the voltage signals of each group of capacitor modules collected by the plurality of voltage sensors are filtered by the filter circuit and then are connected with the AD sampling chip through the multi-path switching chips.
6. The supercapacitor voltage monitoring device according to claim 4, wherein: the model of the CPU control chip is STM32F 407.
7. The supercapacitor voltage monitoring device according to claim 4, wherein: the display screen is a TFT liquid crystal screen with a touch function.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121017310.6U CN215218963U (en) | 2021-05-13 | 2021-05-13 | Super capacitor voltage monitoring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121017310.6U CN215218963U (en) | 2021-05-13 | 2021-05-13 | Super capacitor voltage monitoring device |
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| Publication Number | Publication Date |
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| CN215218963U true CN215218963U (en) | 2021-12-17 |
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| CN202121017310.6U Active CN215218963U (en) | 2021-05-13 | 2021-05-13 | Super capacitor voltage monitoring device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117310427A (en) * | 2023-09-27 | 2023-12-29 | 石家庄旭昊电力设备科技有限公司 | Fault detection method and high-voltage capacitor group unit on-line monitoring system |
-
2021
- 2021-05-13 CN CN202121017310.6U patent/CN215218963U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117310427A (en) * | 2023-09-27 | 2023-12-29 | 石家庄旭昊电力设备科技有限公司 | Fault detection method and high-voltage capacitor group unit on-line monitoring system |
| CN117310427B (en) * | 2023-09-27 | 2024-03-29 | 石家庄旭昊电力设备科技有限公司 | Fault detection method and high-voltage capacitor group unit on-line monitoring system |
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