CN214755700U - Intelligent platform area fusion terminal - Google Patents

Intelligent platform area fusion terminal Download PDF

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Publication number
CN214755700U
CN214755700U CN202023029326.7U CN202023029326U CN214755700U CN 214755700 U CN214755700 U CN 214755700U CN 202023029326 U CN202023029326 U CN 202023029326U CN 214755700 U CN214755700 U CN 214755700U
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Prior art keywords
super capacitor
diode
module
circuit
power supply
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CN202023029326.7U
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Inventor
庄泽润
方旭峰
黄家锋
叶志忠
苏秀良
康铭弘
康友灵
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Fujian Yili Tianlong Group Co ltd
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Fujian Yili Tianlong Group Co ltd
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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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
    • Y02B70/30—Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
    • 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02B90/20—Smart grids as enabling technology in buildings sector
    • 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
    • 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
    • Y04S20/20—End-user application control systems
    • Y04S20/248—UPS systems or standby or emergency generators

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Abstract

The utility model discloses an intelligent integrated terminal for a transformer area, which comprises a main board and a power panel; the power panel is provided with a super capacitor module, and the super capacitor module comprises a charging and discharging circuit and a super capacitor; the specific connection mode of the charge and discharge circuit is as follows: the output end of the AC/DC power supply module is connected with the anode of a diode D1, and the cathode of a diode D1 is connected with a current-limiting resistor R1 in series and then is connected to a super capacitor; the super capacitor is connected with the wide-range input boosting module and then connected to the anode of the diode D2; the cathode of the diode D2 is connected to the main board; the diode D3 is connected in the forward direction between the anode of the diode D1 and the cathode of the diode D2. And the voltage transformer PT and the current transformer CT are connected with an external circuit to output current signals, and the current signals are input into the sampling circuit and then input into the sampling chip after passing through the LC filtering anti-interference circuit. Can provide high accuracy and can improve super capacitor's charge-discharge circuit and the platform district intelligent fusion terminal of the utilization ratio of the inside electric energy of super capacitor after the complete machine outage.

Description

Intelligent platform area fusion terminal
Technical Field
The utility model relates to a power consumer power consumption information acquisition, join in marriage fields such as transformer monitoring, power consumption load regulation, concretely relates to platform district intelligent fusion terminal.
Background
The intelligent station area fusion terminal has the functions of an intelligent distribution transformer terminal and a concentrator, is an important edge computing node for power distribution and utilization, is the strongest brain of a distribution station area, is edge equipment of a basic intelligent thing networking system cloud pipe edge end framework for constructing a low-voltage distribution internet of things, has the functions of edge thing networking, state perception and data acquisition, and serves as business support in national network marketing, power distribution and emerging fields. The platform area intelligent fusion terminal adopts hardware platform, service APP and structure modularization; the intelligent integration terminal device can be applied to intelligent integration terminal devices integrating functions of state information perception of distribution internet-of-things operation devices, power consumption data copying, distribution transformer monitoring, communication networking, a local analysis decision mechanism and the like.
The technical indexes of the intelligent integration terminal of the transformer area must meet the requirements of national power grid material purchasing technical specifications, the intelligent integration terminal has the communication functions of 4G, carrier, 485, 232 and the like, can acquire the states of other machines such as a distribution transformer and the like, and uploads required information to a main station through an uplink channel after local processing. Therefore, high requirements are required for the accuracy degree of data measured by the platform area intelligent fusion terminal; meanwhile, if a traditional super capacitor working mode is adopted, a capacitor is directly connected to a circuit, and voltage is reduced along with reduction of internal electric energy; when the voltage drops below the working voltage, the circuit does not work although the super capacitor still has redundant electric energy inside. Therefore, a platform area intelligent fusion terminal which has high precision and can improve the utilization rate of the electric energy in the super capacitor after the charging and discharging circuit of the super capacitor and the whole machine are powered off is needed.
SUMMERY OF THE UTILITY MODEL
1. The technical problem to be solved is as follows:
to the technical problem, the utility model provides a platform district intelligence fuses terminal, this terminal is with conventional rechargeable battery replacement for super capacitor to according to specific circuit design charging and discharging circuit, the effectual use that satisfies high height above sea level and the wide temperature of industrial level.
2. The technical scheme is as follows:
an intelligent platform area fusion terminal comprises a power panel and a mainboard; the method is characterized in that: the power panel is provided with a main board power supply connecting port, an external circuit connecting port, a super capacitor module, an AC/DC power supply module, an alternating current information acquisition chip and an information processing chip; the input end of the AC/DC power supply module is connected with an external circuit through an external circuit connecting port; the output end of the AC/DC power supply module is connected with the charging end of the super capacitor module, and the discharging end of the super capacitor module is connected with the mainboard through the mainboard power supply input port; the output end of the AC/DC power supply module is directly connected with the mainboard through the mainboard power supply input port; the input end of the alternating current information acquisition chip is connected with an external circuit, and the output end of the alternating current information acquisition chip is connected with the information processing chip; the output end of the information processing chip transmits the acquired information to the mainboard through SPI communication; the super capacitor module comprises a charge-discharge circuit and a super capacitor; the specific connection mode of the charge and discharge circuit is as follows: the output end of the AC/DC power supply module is connected with the anode of a diode D1, and the cathode of a diode D1 is connected with a current-limiting resistor R1 in series and then is connected to a super capacitor; the super capacitor is connected with the wide-range input boosting module and then connected to the anode of the diode D2; the cathode of the diode D2 is connected to the main board; the diode D3 is connected in the forward direction between the anode of the diode D1 and the cathode of the diode D2.
A sampling circuit and an anti-interference circuit are arranged between the sampling chip and an external circuit; and the voltage transformer PT and the current transformer CT are connected with an external circuit to output current signals, and the current signals are input into the sampling circuit and then input into the sampling chip after passing through the LC filtering anti-interference circuit.
Furthermore, the main board integrates a core processing module and a communication module; the communication module is connected with the core processing module.
Furthermore, a sampling resistor in the sampling circuit is a low-temperature drift resistor;
further, the model of the alternating current information acquisition chip is ATT 7022; the model of the information processing chip is STM32F103 RCT.
3. Has the advantages that:
(1) the utility model discloses well adoption super capacitor is as the supplementary power at district intelligent integration terminal to satisfy the use of high altitude and the wide temperature of industrial grade. The charging and discharging circuit is adopted to realize the charging and discharging of the super capacitor; when the computer is started, the power supply module starts to supply power. The power supply current is divided into two paths after coming in, one part of the power supply current is directly used for the load, and the other part of the power supply current is used for charging the super capacitor. When the power supply module has power failure due to accidents, the super capacitor can be adjusted to the voltage required by the load through the boost module, and then the load is supplied with power. The unidirectional diode D1 on the input side ensures that the super capacitor will pass through the boost module without discharging to the input side after the power supply module is powered down. The current limiting resistor R1 can adjust the charging speed, and the super capacitor can be charged under the condition of ensuring normal operation of the load. The current limiting resistor can be modified according to the power of the power supply module, the power of the load and the specific condition of the super capacitor. The wide-range input boosting module can ensure that the voltage output by the super capacitor is stable continuously, and can effectively utilize the energy in the super capacitor. The output unidirectional diode D2 can ensure the output direction of the voltage, and the impact on the boosting module can not be caused when the power is turned on and electrified.
(2) The alternate-acquisition part of the intelligent fusion terminal in the station area converts alternate-acquisition voltage and current into weak-current signals after the alternate-acquisition voltage and the alternating-acquisition current pass PT and CT transformation ratios; and a voltage signal which can be identified by the information processing chip is formed through a sampling resistor with low temperature drift of 15 PPM. The voltage signal passes through an anti-interference circuit formed by a filter capacitor, clutter interference in the voltage signal is removed, and a clean voltage signal is transmitted to an AD pin of an ATT7022 chip to be read. The ATT7022 converts the collected voltage signal into collected raw data by using an internal algorithm, and ensures that the collected raw data is not inaccurate along with the deviation of the temperature through a temperature drift compensation algorithm. After the ATT7022 reads the signal, the processed original acquisition data is transmitted to the STM32F103RCT6 through SPI communication. The STM32F103RCT6 processing chip stores and processes the collected original data. And calculating the original data uploaded by the ATT7022 by a trigonometric function, Fourier transform, Euler formula and the like. Besides the basic data of voltage, current, frequency and the like, the method can also calculate the power of active power, reactive power, apparent power, fundamental wave, positive and negative sequence, unbalance and other important information such as three-phase positive and negative sequence components, three-phase unbalance and the like. Through the information, more complete power quality data of the monitored place can be obtained, and good data support and solution reference can be provided for power quality management of the place.
Drawings
Fig. 1 is a schematic diagram of the overall structure of the intelligent convergence terminal in the station area;
fig. 2 is a circuit diagram between a sampling chip and an external circuit of the local area intelligent convergence terminal;
fig. 3 is a charging and discharging circuit diagram of a super capacitor of the station intelligent convergence terminal.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings.
As shown in fig. 1 to fig. 3, and 1, the power panel is provided with a main board power connection port, an external circuit connection port, a super capacitor module, an AC/DC power module, an alternating current information acquisition chip and an information processing chip; the input end of the AC/DC power supply module is connected with an external circuit through an external circuit connecting port; the output end of the AC/DC power supply module is connected with the charging end of the super capacitor module, and the discharging end of the super capacitor module is connected with the mainboard through the mainboard power supply input port; the output end of the AC/DC power supply module is directly connected with the mainboard through the mainboard power supply input port; the input end of the alternating current information acquisition chip is connected with an external circuit, and the output end of the alternating current information acquisition chip is connected with the information processing chip; the output end of the information processing chip transmits the acquired information to the mainboard through SPI communication; the super capacitor module comprises a charge-discharge circuit and a super capacitor; the specific connection mode of the charge and discharge circuit is as follows: the output end of the AC/DC power supply module is connected with the anode of a diode D1, and the cathode of a diode D1 is connected with a current-limiting resistor R1 in series and then is connected to a super capacitor; the super capacitor is connected with the wide-range input boosting module and then connected to the anode of the diode D2; the cathode of the diode D2 is connected to the main board; the diode D3 is connected in the forward direction between the anode of the diode D1 and the cathode of the diode D2.
A sampling circuit and an anti-interference circuit are arranged between the sampling chip and an external circuit; and the voltage transformer PT and the current transformer CT are connected with an external circuit to output current signals, and the current signals are input into the sampling circuit and then input into the sampling chip after passing through the LC filtering anti-interference circuit.
Furthermore, the main board integrates a core processing module and a communication module; the communication module is connected with the core processing module.
Further, the sampling resistor in the sampling circuit is a low-temperature drift resistor.
Further, the model of the alternating current information acquisition chip is ATT 7022; the model of the information processing chip is STM32F103RCT 6.
The specific embodiment is as follows:
the intelligent convergence terminal of the cell area uses a three-phase four-wire system for power supply according to the specification, so that a power supply module HT18-Y2KS12N is adopted for power supply. The single-path 12V output can directly supply power to the mainboard, and the carrier wave and micropower wireless modules can be directly used without level conversion. The super capacitor is an HCAP-M12R 406A industrial super capacitor, and can meet the use requirements of high altitude and industrial wide temperature. The super capacitor is charged through diode D1 and a current limiting resistor of 47R. After the power failure of the intelligent integration terminal of the transformer area, the electric energy in the super capacitor only flows to the input end of the boosting module due to the blocking of the D1, and does not flow back into the charging circuit of the super capacitor. After the booster circuit works, the electric energy in the super capacitor can be stabilized at 12V which is needed by people and then output, and the working voltage of the intelligent integration terminal of the transformer area is ensured to be stable. Because the boost module is wide input, the voltage in the super capacitor can be ensured to be reduced to be very low, and the super capacitor can be normally used by the intelligent fusion terminal in the transformer area. Thereby ensuring to achieve the purpose of efficiently utilizing the electric energy in the super capacitor.
As shown in the attached drawing 1, the 4G remote communication chip of the intelligent core is adopted by the intelligent fusion terminal in the station area to carry out 4G design, the TXHX13 module carries out local carrier design, the BR2262e module carries out bluetooth design, the LTC2873 carries out switching design on the two 232 interfaces and the two 485 interfaces, the ADM2484 carries out the two 485 interfaces, the optical coupling is directly connected with the IO interface after being isolated to carry out four remote signaling receiving port design, the SP3232EEY carries out one-path local debugging serial port design, the KSZ9896C carries out two-path ethernet interface design, the mini USB port carries out one-path local programming upgrading interface, and the high-precision acquisition chip carries out one-path local three-voltage four-current acquisition interface.
Although the present invention has been described with reference to the preferred embodiments, it should be understood that various changes and modifications can be made therein by those skilled in the art without departing from the spirit and scope of the invention.

Claims (4)

1. An intelligent platform area fusion terminal comprises a power panel and a mainboard; the method is characterized in that: the power panel is provided with a main board power supply connecting port, an external circuit connecting port, a super capacitor module, an AC/DC power supply module, an alternating current information acquisition chip and an information processing chip; the input end of the AC/DC power supply module is connected with an external circuit through an external circuit connecting port; the output end of the AC/DC power supply module is connected with the charging end of the super capacitor module, and the discharging end of the super capacitor module is connected with the mainboard through the mainboard power supply input port; the output end of the AC/DC power supply module is directly connected with the mainboard through the mainboard power supply input port; the input end of the alternating current information acquisition chip is connected with an external circuit, and the output end of the alternating current information acquisition chip is connected with the information processing chip; the output end of the information processing chip transmits the acquired information to the mainboard through SPI communication; the super capacitor module comprises a charge-discharge circuit and a super capacitor; the specific connection mode of the charge and discharge circuit is as follows: the output end of the AC/DC power supply module is connected with the anode of a diode D1, and the cathode of a diode D1 is connected with a current-limiting resistor R1 in series and then is connected to a super capacitor; the super capacitor is connected with the wide-range input boosting module and then connected to the anode of the diode D2; the cathode of the diode D2 is connected to the main board; the diode D3 is connected between the anode of the diode D1 and the cathode of the diode D2 in the forward direction;
a sampling circuit and an anti-interference circuit are arranged between the alternating current information acquisition chip and an external circuit; the voltage transformer PT and the current transformer CT are connected with an external circuit to output current signals, and the current signals are input into the sampling circuit and then input into the alternating current information acquisition chip after passing through the LC filtering anti-interference circuit.
2. The terminal of claim 1, wherein: the mainboard is integrated with a core processing module and a communication module; the communication module is connected with the core processing module.
3. The terminal of claim 1, wherein: and the sampling resistor in the sampling circuit is a low-temperature drift resistor.
4. The terminal of claim 1, wherein: the type of the alternating current information acquisition chip is ATT 7022; the model of the information processing chip is STM32F103RCT 6.
CN202023029326.7U 2020-12-16 2020-12-16 Intelligent platform area fusion terminal Active CN214755700U (en)

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CN202023029326.7U CN214755700U (en) 2020-12-16 2020-12-16 Intelligent platform area fusion terminal

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202023029326.7U CN214755700U (en) 2020-12-16 2020-12-16 Intelligent platform area fusion terminal

Publications (1)

Publication Number Publication Date
CN214755700U true CN214755700U (en) 2021-11-16

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Country Link
CN (1) CN214755700U (en)

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