CN205353322U - Online capability test device of electric power storage battery - Google Patents

Online capability test device of electric power storage battery Download PDF

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Publication number
CN205353322U
CN205353322U CN201620137028.4U CN201620137028U CN205353322U CN 205353322 U CN205353322 U CN 205353322U CN 201620137028 U CN201620137028 U CN 201620137028U CN 205353322 U CN205353322 U CN 205353322U
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China
Prior art keywords
pin
interface
microprocessor
mpu
storage battery
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Application number
CN201620137028.4U
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Chinese (zh)
Inventor
邢新明
郭建彬
贾志辉
苗俊杰
马延强
王浩斌
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Han Dan Wu Yi Ba Automatic Electrical Appliance Co Ltd
State Grid Corp of China SGCC
Handan Power Supply Co of State Grid Hebei Electric Power Co Ltd
Original Assignee
Han Dan Wu Yi Ba Automatic Electrical Appliance Co Ltd
State Grid Corp of China SGCC
Handan Power Supply Co of State Grid Hebei Electric Power Co Ltd
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Application filed by Han Dan Wu Yi Ba Automatic Electrical Appliance Co Ltd, State Grid Corp of China SGCC, Handan Power Supply Co of State Grid Hebei Electric Power Co Ltd filed Critical Han Dan Wu Yi Ba Automatic Electrical Appliance Co Ltd
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Abstract

The utility model provides an online capability test device of electric power storage battery, including voltage transducer, current transmitter and RS485 interface circuit, still include microprocessor and touch -sensitive screen, the touch -sensitive screen is connected with microprocessor, anodal and the anodal of storage battery of an interface of voltage transducer are connected, the negative pole and storage battery's the negative pole of an interface of voltage transducer are connected, the signal output part and microprocessor's the first input end of voltage transducer secondary interface are connected, current transmitter's once end punching is between storage battery positive pole and dc bus + KM, the signal output part of current transmitter secondary interface is connected with microprocessor's second input, microprocessor is connected via the RS485 interface circuit and the communication interface of the machine that charges. Overcome the unable defect that detects storage battery capacity during the discharge cycle of the current discharge test of the nature checked completely method, this will be favorable to guaranteeing storage battery whole life cycle's the performance and the safe operation of transformer substation greatly.

Description

A kind of electric storage battery group on-line performance test device
Technical field
This utility model belongs to transformer station's test equipment technical field, relates to a kind of electric storage battery group on-line performance test device.
Background technology
In transformer station; the offer direct current electricity consumptions such as DC power system is control, signal, relay protection, automaton and emergency lighting; accumulator is again last one safety curtain of whole DC power system; once go wrong; the thing followed is to protect malfunctioning, switch failure, channel interrupt etc., and consequence is hardly imaginable.In recent years, the great electric power accident caused because of accumulator problem happens occasionally, and causes great economic loss.At present, for the performance test of electric storage battery group, mainly based on on-Line Voltage detection, and by code carry out year checking discharging test, voltage on-line checking can only response voltage height, it is impossible to represent amount of capacity and battery performance quality;Checking discharging test, can accurately measure the actual capacity of battery, the performance of reaction cell, but checking discharging test is that electric energy is transformed into heat energy, wastes time and energy, and dangerous also not environmentally does not also allow frequently to carry out, in order to avoid battery causes unnecessary injury.
Summary of the invention
This utility model is in order to overcome the defect of prior art, devise a kind of electric storage battery group on-line performance test device, utilizing actual load quickly to test the performance quality of accumulator battery online, the shortcoming that can overcome checking discharging test, is a kind of useful supplement of checking discharging test.
The concrete technical scheme that this utility model is taked is: a kind of electric storage battery group on-line performance test device, accumulator battery is connected between dc bus+KM and dc bus-KM, the DC terminal of charger is connected between dc bus+KM and dc bus-KM, transforming plant DC load is connected between dc bus+KM and dc bus-KM, it is crucial that: described device includes voltage transmitter, current transducer and RS485 interface circuit, also include microprocessor and touch screen, touch screen is connected with microprocessor, the positive pole of interface of voltage transmitter is connected with the positive pole of accumulator battery, the negative pole of interface of voltage transmitter is connected with the negative pole of accumulator battery, the signal output part of voltage transmitter second interface is connected with the first input end of microprocessor, the once end punching of current transducer is between accumulator battery positive pole and dc bus+KM, the signal output part of current transducer second interface is connected with the second input of microprocessor, microprocessor is connected with the communication interface of charger via RS485 interface circuit.
Described voltage transmitter adopts electromagnetism modulation voltage sensor, the model of voltage transmitter is WPE-DV, + E the pin of voltage transmitter second interface is connected with+12V power supply, and the GND pin of voltage transmitter second interface is connected to ground, the U of voltage transmitter second interfaceZPin is connected with the first input end of microprocessor.
Described current transducer adopts Hall current sensor, the model of current transducer is TBC50A, + E the pin of current transducer second interface is connected with+12V power supply,-E the pin of current transducer second interface is connected with-12V power supply, the G pin of current transducer second interface is connected to ground, the U of current transducer second interfaceZPin is connected with the second input of microprocessor.
The model of described microprocessor is ATMEGA128L8AI, the model of touch screen is DMT64480T056, RS485 interface circuit adopts 485 interface chips of isolated form, the model of RS485 interface circuit is ADM2483, the GND1 pin of RS485 interface circuit is connected to ground, PV pin and the VDD1 pin of RS485 interface circuit are connected with V33 high level, the DE pin of RS485 interface circuit is all connected with the PE2 foot of microprocessor with RE pin, the TXI pin of RS485 interface circuit is connected with the PE0 foot of microprocessor, the RXO pin of RS485 interface circuit is connected with the PE1 foot of microprocessor, the GND2 pin of RS485 interface circuit, VDD2 pin, A pin and B pin are all connected with the communication interface of charger;
GND pin and the AGND pin of microprocessor are all connected to ground, VCC pin and AVCC pin are all connected with VCC high level, it is connected with VCC high level after RESET pin serial connection the first resistance, it is connected to ground after RESET pin serial connection the first electric capacity, XTAL2 pin is connected with XTAL1 pin after being sequentially connected with the second electric capacity and the 3rd electric capacity, the junction point of the second electric capacity and the 3rd electric capacity is connected to ground, it is connected to crystal oscillator between XTAL1 pin and XTAL2 pin, RXD1 pin is connected with the TX pin of touch screen, TXD1 pin is connected with the RX pin of touch screen, the 4th electric capacity it is connected between AREF pin and AGND pin, PF0 pin is first input end, PF1 pin is the second input, the GND pin of touch screen is connected to ground.
Described touch screen is connected with microprocessor with RS232 communication modes.
The beneficial effects of the utility model are: utilize actual load quickly to test the capacity of accumulator battery online, the performance of accumulator battery is judged according to actually measured amount of capacity, during test, the electric energy of accumulator battery release is used for providing DC load electricity consumption for transformer station, overcomes general discharge instrument and electric energy must be converted into the defect that thermal energy consumption is fallen, time saving and energy saving, be conducive to saving the energy, low-carbon environment-friendly, and can frequently carry out, accumulator battery will not be caused unnecessary injury.Overcoming existing complete checking discharging test method and cannot detect the defect of battery group capacity during discharge cycle, this will greatly facilitate the safe operation of performance and the transformer station ensureing accumulator battery life cycle management.
Accompanying drawing explanation
Fig. 1 is electrical schematic diagram of the present utility model.
In accompanying drawing, VRLA represents accumulator battery, and LOAD represents transforming plant DC load, VT representative voltage transmitter, AT represents current transducer, and CI represents RS485 interface circuit, MPU represents microprocessor, TP represents touch screen, and R1 represents the first resistance, and C1 represents the first electric capacity, C2 represents the second electric capacity, C3 represents the 3rd electric capacity, and C4 represents the 4th electric capacity, and M1 represents crystal oscillator.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, this utility model is elaborated:
Specific embodiment, as shown in Figure 1, a kind of electric storage battery group on-line performance test device, accumulator battery VRLA is connected between dc bus+KM and dc bus-KM, the DC terminal of charger is connected between dc bus+KM and dc bus-KM, transforming plant DC load LOAD is connected between dc bus+KM and dc bus-KM, device includes voltage transmitter VT, current transducer AT and RS485 interface circuit CI, also include microprocessor MPU and touch screen TP, touch screen TP is connected with microprocessor MPU with RS232 communication modes, it it is the human-computer interaction interface of device, parameter setting for device, data are checked and control operation.The positive pole of interface of voltage transmitter VT is connected with the positive pole of accumulator battery VRLA, the negative pole of interface of voltage transmitter VT is connected with the negative pole of accumulator battery VRLA, the signal output part of voltage transmitter VT second interface is connected with the first input end of microprocessor MPU, for gathering the voltage of accumulator battery VRLA, the once end punching of current transducer AT is between accumulator battery VRLA positive pole and dc bus+KM, the signal output part of current transducer AT second interface is connected with the second input of microprocessor MPU, for gathering the electric current of accumulator battery VRLA, microprocessor MPU is connected with the communication interface of charger via RS485 interface circuit CI, control the VD of charger.
Voltage transmitter VT adopts electromagnetism modulation voltage sensor, the model of voltage transmitter VT is WPE-DV, input 0-300V, output 0-5V, + E the pin of voltage transmitter VT second interface is connected with+12V power supply, the GND pin of voltage transmitter VT second interface is connected to ground, the U of voltage transmitter VT second interfaceZPin is connected with the first input end of microprocessor MPU.
Current transducer AT adopts Hall current sensor, the model of current transducer AT is TBC50A, + E the pin of current transducer AT second interface is connected with+12V power supply,-E the pin of current transducer AT second interface is connected with-12V power supply, the G pin of current transducer AT second interface is connected to ground, the U of current transducer AT second interfaceZPin is connected with the second input of microprocessor MPU.
The model of microprocessor MPU is ATMEGA128L8AI, it is a single-chip microcomputer of 8 the highest configurations of series of atmel corp, has the risc architecture of advanced person, the in-chip FLASH of 128K, 4K on-chip SRAM, the A/D converter of 10,8 passage, two programmable serial USART;The model of touch screen TP is DMT64480T056, adopts the intelligent display terminal with serial USART interface to add 5.7 touch screens;RS485 interface circuit CI adopts 485 interface chips of isolated form, the model of RS485 interface circuit CI is ADM2483, the GND1 pin of RS485 interface circuit CI is connected to ground, PV pin and the VDD1 pin of RS485 interface circuit CI are connected with V33 high level, the DE pin of RS485 interface circuit CI is all connected with the PE2 foot of microprocessor MPU with RE pin, the TXI pin of RS485 interface circuit CI is connected with the PE0 foot of microprocessor MPU, the RXO pin of RS485 interface circuit CI is connected with the PE1 foot of microprocessor MPU, the GND2 pin of RS485 interface circuit CI, VDD2 pin, A pin and B pin are all connected with the communication interface of charger;
GND pin and the AGND pin of microprocessor MPU are all connected to ground, VCC pin and AVCC pin are all connected with VCC high level, it is connected with VCC high level after RESET pin serial connection the first resistance R1, is connected to ground after RESET pin serial connection the first electric capacity C1, completes electrification reset function;XTAL2 pin is connected with XTAL1 pin after being sequentially connected with the second electric capacity C2 and the three electric capacity C3, and the junction point of the second electric capacity C2 and the three electric capacity C3 is connected to ground, and is connected to crystal oscillator M1, makes single-chip microcomputer normal operation between XTAL1 pin and XTAL2 pin;RXD1 pin is connected with the TX pin of touch screen TP, TXD1 pin is connected with the RX pin of touch screen TP, and being connected to the 4th electric capacity C4, the PF0 pin strobed between AREF pin and AGND pin is first input end, PF1 pin is the second input, and the GND pin of touch screen TP is connected to ground.
Time properly functioning, the DC load electricity consumption of transforming plant DC load LOAD is provided by charger, microprocessor MPU passes through group voltage and the charging current of voltage transmitter VT and current transducer AT on-line checking straight-flow system accumulator battery VRLA, and the running status of accumulator battery VRLA is monitored;Regularly or when needing to carry out the test of accumulator battery VRLA on-line performance, the microprocessor MPU voltage by voltage transmitter VT online acquisition accumulator battery VRLA, carry out communication via RS485 interface circuit CI with straight-flow system charger simultaneously, dynamically adjust the output voltage of charger, charger voltage is made to be consistently lower than accumulator battery voltage, at this moment, the DC load electricity consumption of transforming plant DC load LOAD is all provided by accumulator battery VRLA, charger is not exerted oneself, microprocessor MPU gathers the output current value of accumulator battery VRLA again through current transducer AT real-time online, and the time is integrated, draw the capacity of accumulator battery VRLA, the performance of accumulator battery VRLA is judged according to the capacity recorded, difference between the capacity and the initial capacity that record is more little, illustrate that the performance of accumulator battery VRLA is more good.
During test, the electric energy of accumulator battery VRLA release is used for providing DC load electricity consumption for transformer station, overcome general discharge instrument and electric energy must be converted into the defect that thermal energy consumption is fallen, time saving and energy saving, be conducive to saving the energy, low-carbon environment-friendly, and can frequently carry out, accumulator battery VRLA will not be caused unnecessary injury.Overcoming existing complete checking discharging test method and cannot detect the defect of accumulator battery VRLA capacity during discharge cycle, this will greatly facilitate the safe operation of performance and the transformer station ensureing accumulator battery VRLA life cycle management.

Claims (5)

1. an electric storage battery group on-line performance test device, accumulator battery (VRLA) is connected between dc bus+KM and dc bus-KM, the DC terminal of charger is connected between dc bus+KM and dc bus-KM, transforming plant DC load (LOAD) is connected between dc bus+KM and dc bus-KM, it is characterized in that: described device includes voltage transmitter (VT), current transducer (AT) and RS485 interface circuit (CI), also include microprocessor (MPU) and touch screen (TP), touch screen (TP) is connected with microprocessor (MPU), the positive pole of voltage transmitter (VT) interface is connected with the positive pole of accumulator battery (VRLA), the negative pole of voltage transmitter (VT) interface is connected with the negative pole of accumulator battery (VRLA), the signal output part of voltage transmitter (VT) second interface is connected with the first input end of microprocessor (MPU), the once end punching of current transducer (AT) is between accumulator battery (VRLA) positive pole and dc bus+KM, the signal output part of current transducer (AT) second interface is connected with the second input of microprocessor (MPU), microprocessor (MPU) is connected with the communication interface of charger via RS485 interface circuit (CI).
2. a kind of electric storage battery group on-line performance test device according to claim 1, it is characterized in that: described voltage transmitter (VT) adopts electromagnetism modulation voltage sensor, the model of voltage transmitter (VT) is WPE-DV, + E the pin of voltage transmitter (VT) second interface is connected with+12V power supply, the GND pin of voltage transmitter (VT) second interface is connected to ground, the U of voltage transmitter (VT) second interfaceZPin is connected with the first input end of microprocessor (MPU).
3. a kind of electric storage battery group on-line performance test device according to claim 1, it is characterized in that: described current transducer (AT) adopts Hall current sensor, the model of current transducer (AT) is TBC50A, + E the pin of current transducer (AT) second interface is connected with+12V power supply,-E the pin of current transducer (AT) second interface is connected with-12V power supply, the G pin of current transducer (AT) second interface is connected to ground, the U of current transducer (AT) second interfaceZPin is connected with the second input of microprocessor (MPU).
4. a kind of electric storage battery group on-line performance test device according to claim 1, it is characterized in that: the model of described microprocessor (MPU) is ATMEGA128L8AI, the model of touch screen (TP) is DMT64480T056, RS485 interface circuit (CI) adopts 485 interface chips of isolated form, the model of RS485 interface circuit (CI) is ADM2483, the GND1 pin of RS485 interface circuit (CI) is connected to ground, PV pin and the VDD1 pin of RS485 interface circuit (CI) are connected with V33 high level, the DE pin of RS485 interface circuit (CI) is all connected with the PE2 foot of microprocessor (MPU) with RE pin, the TXI pin of RS485 interface circuit (CI) is connected with the PE0 foot of microprocessor (MPU), the RXO pin of RS485 interface circuit (CI) is connected with the PE1 foot of microprocessor (MPU), the GND2 pin of RS485 interface circuit (CI), VDD2 pin, A pin and B pin are all connected with the communication interface of charger;
GND pin and the AGND pin of microprocessor (MPU) are all connected to ground, VCC pin and AVCC pin are all connected with VCC high level, RESET pin serial connection the first resistance (R1) is connected with VCC high level afterwards, it is connected to ground after RESET pin serial connection the first electric capacity (C1), XTAL2 pin is sequentially connected with the second electric capacity (C2) and the 3rd electric capacity (C3) is connected with XTAL1 pin afterwards, the junction point of the second electric capacity (C2) and the 3rd electric capacity (C3) is connected to ground, crystal oscillator (M1) it is connected between XTAL1 pin and XTAL2 pin, RXD1 pin is connected with the TX pin of touch screen (TP), TXD1 pin is connected with the RX pin of touch screen (TP), the 4th electric capacity (C4) it is connected between AREF pin and AGND pin, PF0 pin is first input end, PF1 pin is the second input, the GND pin of touch screen (TP) is connected to ground.
5. a kind of electric storage battery group on-line performance test device according to claim 1, it is characterised in that: described touch screen (TP) is connected with microprocessor (MPU) with RS232 communication modes.
CN201620137028.4U 2016-02-24 2016-02-24 Online capability test device of electric power storage battery Active CN205353322U (en)

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Application Number Priority Date Filing Date Title
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106532679A (en) * 2016-11-02 2017-03-22 龙滩水电开发有限公司龙滩水力发电厂 Method for judging reliable connection of storage battery pack and DC bus
CN111509310A (en) * 2020-03-25 2020-08-07 国网江西省电力有限公司电力科学研究院 Method and device for online testing performance of storage battery of direct current system of transformer substation

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106532679A (en) * 2016-11-02 2017-03-22 龙滩水电开发有限公司龙滩水力发电厂 Method for judging reliable connection of storage battery pack and DC bus
CN106532679B (en) * 2016-11-02 2019-05-03 龙滩水电开发有限公司龙滩水力发电厂 A method of judging that battery group is reliably connected DC bus
CN111509310A (en) * 2020-03-25 2020-08-07 国网江西省电力有限公司电力科学研究院 Method and device for online testing performance of storage battery of direct current system of transformer substation

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