CN102842938B - Terminal controlling unit of storage battery charging/discharging distributed control system - Google Patents
Terminal controlling unit of storage battery charging/discharging distributed control system Download PDFInfo
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- CN102842938B CN102842938B CN201210367912.3A CN201210367912A CN102842938B CN 102842938 B CN102842938 B CN 102842938B CN 201210367912 A CN201210367912 A CN 201210367912A CN 102842938 B CN102842938 B CN 102842938B
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Abstract
The invention discloses a terminal controlling unit of a storage battery charging/discharging distributed control system. The terminal controlling unit comprises a core processor unit, a controlling unit, an electric executing unit and first power supply four parts; the core processor unit takes a micro-programmed control unit (MCU) as an essential part; the MCU is connected with the first power supply, the controlling unit and the storage battery, and is additionally connected with a keyboard and a display; the MCU is further communicated with an upper computer controlling system; the controlling unit comprises voltage, current and temperature measuring circuits, a pulse width modulator (PWM), a relay control signal output circuit and a voltage output circuit, and is used for connecting with and controlling the electric executing part to control charging and discharging of the storage battery; the electric executing unit mainly consists of a charging device and a discharging device, and is directly connected with the storage battery. According to the terminal controlling unit, the storage battery is kept from interference of an electromagnetic environment and other complex environments in a charging and discharging process, thereby improving a processing speed and operation stability of a controller; and conversion precision of the circuit is improved by V/F and F/V conversions.
Description
Technical field
The invention belongs to industrial field data and gather field, be mainly used in the optimal control of accumulator charging/discharging process, relate to a kind of Terminal Control Element of accumulator cell charging and discharging Distributed Control System.
Background technology
Along with developing rapidly of high-tech and industry thereof, the batteries energy resource system of large storage capacity is more and more valued by the people, and is all used widely in a lot of field such as such as electric automobile, high power UPS, power plant and transformer station direct current system, communication system etc.Must carry out " three fill two puts " and capacity check when general storage battery dispatches from the factory, user in use also must by regular discharge and recharge to eliminate polarity effect.Therefore, the management of accumulator cell charging and discharging to storage battery is reasonably carried out most important.Because batteries is composed in series by the cell of some, in use may have hundred times until the charge and discharge of thousand times.The fault all easily causing battery that each cell batteries overcharge, overdischarge or electric discharge are not enough, the fault of certain cell batteries also can cause fault and the damage of whole batteries.Therefore, the temperature rise when charging/discharging voltage of each cell batteries of on-line real-time measuremen batteries discharge and recharge, discharge and recharge and the parameter such as charging and discharging currents, voltage of whole batteries, find out damage or the significantly reduced storage battery of performance in time, for extend battery useful life, to reduce costs the reliability particularly improving DC power-supply system most important.On-the-spot in storage battery production, the discharge and recharge of battery all can produce strong electromagnetic interference, and then affects the normal operation of equipment, how to address this problem, and improving the efficiency that batteries charge and discharge control, is the study hotspot in this field current.
Summary of the invention
The present invention is in order to make up the deficiencies in the prior art, provide a kind of Terminal Control Element of accumulator cell charging and discharging Distributed Control System, MCU operating rate be slow, control precision is low to overcome in existing accumulator cell charging and discharging control unit, electric execution part and control section influence each other dispersion that comparatively large, master control system controls, Terminal Control Element negligible amounts and the aspect deficiency such as system cloud gray model is unstable.
The present invention is achieved through the following technical solutions:
The Terminal Control Element of accumulator cell charging and discharging Distributed Control System of the present invention, its special character is: it comprises core processor unit, control unit, electrically performance element and the first power supply four part;
Its major part of core processor unit is MCU and peripheral interface circuit thereof, MCU connects the first power supply, control unit and storage battery, MCU also connects keyboard and display, man-machine interaction is provided, the operation curve set by user provides control signal as control unit, the accumulator parameter of reception control unit collection simultaneously and peripheral environment parameter, and show in real time through display, finally complete the communication with upper computer control system;
Control unit comprises input signal channel and output signal channel, input signal channel comprises tension measuring circuit, current measurement circuit, temperature measuring circuit, output signal channel comprises pwm control signal output circuit, relay control signal output circuit, voltage follower circuit, they connect and control electric enforcement division and are divided into accumulator cell charging and discharging to control, for completing control task;
Electric performance element mainly comprises charger and discharge equipment, directly connects storage battery, completes the last execution requirements of accumulator cell charging and discharging.
Preferred version is, the peripheral circuit of control unit adopts independent circuits, peripheral circuit is divided into second source part and control board part, two parts are interconnected, and the tension measuring circuit of control board partial interior, current measurement circuit, temperature measuring circuit, voltage follower circuit, PWM are connected MCU separately with relay control signal output circuit, independently run.
The inside, each autonomous channel of control unit adopts Phototube Coupling structure, uses photoelectric coupler isolation signal at input signal channel and output signal channel.
Core processor unit MCU uses the Cortex-M3 processor of ARM series.
The internal signal conversion of voltage, electric current, temperature measuring circuit adopts V/F conversion, and the conversion of pwm control signal output circuit internal signal adopts F/V conversion.
The Terminal Control Element of accumulator cell charging and discharging Distributed Control System of the present invention, carries out data communication with upper computer control system by CAN, and CAN turns ethernet module and is connected with switch, communicates with host computer through switch.
The charging modes adopted in charging process has: constant voltage constant-current charge, charges during constant voltage Dingan County, and constant voltage is fixed time charging, and constant current is fixed time charging, charges during constant current Dingan County, constant current constant-voltage charge.
The discharge mode adopted in discharge process has: tension discharge is determined in constant current, constant current timing discharging, discharges during constant current Dingan County.
The invention has the beneficial effects as follows, separated layout of the present invention circuit and passage Phototube Coupling design concept can ensure that Terminal Control Element is in the process completing accumulator cell charging and discharging operation, not by the interference of the complex environments such as electromagnetism, have employed processing speed and operation stability that Cortex-M3 processor improves controller; V/F and F/V conversion can improve the conversion accuracy of circuit, therefore can be applied to the industry spot of circumstance complication and high request.
Accompanying drawing explanation
Fig. 1 is MCU and peripheral interface circuit schematic diagram thereof.Fig. 2 is Terminal Control Element structural representation of the present invention.
Embodiment
Accompanying drawing is a kind of specific embodiment of the present invention.
The Terminal Control Element of accumulator cell charging and discharging Distributed Control System of the present invention, comprises core processor unit, control unit, electrically performance element and the first power supply four part.The core of core processor unit is MCU and peripheral interface thereof, the visible accompanying drawing 1 of detailed construction, MCU connects the first power supply, control unit and storage battery, MCU also connects keyboard and display, its effect is to provide man-machine interaction, controlling curve according to user's setting exports control signal, be supplied to control unit, the accumulator parameter (voltage, electric current, temperature) of reception control unit collection simultaneously and peripheral environment parameter (temperature, humidity), and through the real-time display parameters of display, finally complete the communication with upper computer control system; Control unit comprises input signal channel and output signal channel, input signal channel comprises 2 road temperature measuring circuits, 1 road tension measuring circuit, 1 road current measurement circuit, output signal channel comprises 1 road PMW control signal output circuit, 1 road relay control signal output circuit, voltage follower circuit, its effect has been control task, controls electric enforcement division and is divided into accumulator cell charging and discharging to control.The common device of electric performance element is exactly charger and discharge equipment, directly connects storage battery, and its effect is exactly realize the last execution to the discharge and recharge of storage battery.
Core processor unit MCU uses 32 embedded type C ortex-M3 processors of ARM series.Have that processing speed is fast, cheap, cost performance high, and processor does not need operating system, exploitation is easily, and stable.Compare 8 general single-chip microcomputer processing speeds fast, stable.This adds increased operation stability and the speed of service of whole control system.
In order to completely isolated battery charging and discharging executive system and control system, ensure not interfere with each other between passage, the peripheral circuit of control unit adopts and independently arranges circuit, and peripheral circuit is divided into second source part and control board part, two parts are interconnected.To the control board part of control unit, by its internal circuit as the circuit such as tension measuring circuit, current measurement circuit, temperature measuring circuit, voltage follower circuit, pwm control signal output circuit and relay control signal output circuit are connected MCU separately, respective connection second source part, and each circuit independently runs.
In order to reduce the impact of electromagnetic interference on each autonomous channel, the inside, each autonomous channel of control unit adopts Phototube Coupling structure, uses photoelectric coupler isolation signal, and then ensure that the reliability of each autonomous channel at input signal channel and output signal channel.The measuring circuits such as tension measuring circuit, current measurement circuit, temperature measuring circuit belong to input signal channel, and pwm control signal output circuit and relay control signal output circuit belong to output signal channel.Pwm control signal output circuit is provided with PID adjuster.
The Terminal Control Element of accumulator cell charging and discharging Distributed Control System of the present invention, MCU and upper computer control system carry out data communication by CAN, and CAN turns ethernet module and is connected with switch, communicates with host computer through switch.
In order to the output accuracy of the acquisition precision and control signal that improve the parameter of circuit, the internal signal conversion of voltage, electric current, temperature measuring circuit adopts V/F conversion, and the conversion of pwm control signal output circuit internal signal adopts F/V conversion.Which enhance the acquisition precision of the parameter of circuit and the output accuracy of control signal, also improve antijamming capability.Input and output voltage, current precision≤0.5%(350A/0V-350V, 100A/0V-350V, 50A/0V-200V) (1 road voltage, 1 road electric current); Monomer battery voltage precision≤0.1% (0V-5V); Temperature measurement range 0-80 DEG C, certainty of measurement ± 0.5 DEG C; (1 road battery temperature, 1 tunnel ambient temperature); Time error≤0.1s/h.
The Terminal Control Element of accumulator cell charging and discharging Distributed Control System of the present invention, mainly completes and controls accumulator charging/discharging process, detects the parameter of battery pack simultaneously, and such as, voltage, electric current, temperature, be optimized accumulator property.Its major function is as follows:
1, Terminal Control Element has charging, electric discharge, static (charging is not discharged, relay not adhesive, exporting Setting signal is zero), circulation (judging the cycle-index of whole process when stopping), time-out, the controlling functions such as stopping.
2, Terminal Control Element is filling in multistage charge and discharge process can switch condition automatically, and voltage, electric current, time, ampere-hour can combination in any; Adjacent two identical stages, without switching contactor.
3, the charging modes adopted in terminal control charging process has following several: constant voltage constant-current charge (constant voltage charge, terminate when electric current is reduced to setting current value), charge during constant voltage Dingan County (constant voltage charge, when terminating to during setting ampere-hour value), constant voltage is fixed time charging, and constant current is fixed time charging, charges during constant current Dingan County, constant current constant-voltage charge (constant voltage charge, when voltage terminates to during setting voltage value);
4, the discharge mode adopted in terminal control discharge process has following several: tension discharge (constant-current discharge, when voltage terminates to during setting voltage value) is determined in constant current, and constant current timing discharging, discharges during constant current Dingan County.
5, Terminal Control Element has memory function, and single loop equipment should be able to store 5 charge-discharge procedures, and each program can be made up of 30 steps, and single device can work out charge-discharge procedures; During discharge and recharge, ampere-hour should add up separately, and stores according to step.
6, Terminal Control Element adopts input through keyboard in control procedure, program composition, Dynamic System; Adopt 4*16 Character Mode LCD, show English parameter.
7, whole control system adopts single loop equipment, host computer networking control mode.
8, compatible strong: can suitably to increase according to the specific requirement of user or simplify the functional module of controller.
The Terminal Control Element of accumulator cell charging and discharging Distributed Control System of the present invention, using method is as follows:
After accumulator cell charging and discharging Distributed Control System completes overall connection, Terminal Control Element starts the function realizing self.
First it can realize communicating by CAN and host computer, can accept the program control requirement of host computer transmission on the one hand; Real-time for the data of Terminal Control Element collection can be transferred to host computer, so that monitor the operation conditions of whole control system on the other hand.
Secondly, Terminal Control Element itself can accept the program of programmer by input through keyboard, and requires according to program the charge and discharge process controlling storage battery.The realization mainly processor core unit output control signal of this process, through PWM passage and the relay signal passage of control unit, controls charger and discharge equipment, realizes storage battery and run according to charge and discharge control program.
Finally, Terminal Control Element can the temperature of collection site and the parameters of storage battery that controls, such as, battery tension, electric current, temperature and ampere-hour number etc., be convenient to the charge status of monitoring storage battery like this, so that staff makes suitable amendment to program, the charge and discharge process of storage battery is optimized.After this process control unit gathers each parameter, through excess temperature, voltage, current acquisition passage by each parameter transmission to processor core unit, show the real time data collected through liquid crystal display, data can send data to upper computer control system by CAN simultaneously.
Claims (3)
1. a Terminal Control Element for accumulator cell charging and discharging Distributed Control System, comprises core processor unit, control unit, electrically performance element and the first power supply;
Core processor unit mainly comprises MCU and peripheral interface circuit thereof, MCU connects the first power supply, control unit and storage battery, MCU also connects keyboard and display, man-machine interaction is provided, the operation curve set by user provides control signal as control unit, the accumulator parameter of reception control unit collection simultaneously and peripheral environment parameter, and show in real time through display, complete the communication with upper computer control system;
Control unit comprises input signal channel and output signal channel, input signal channel comprises tension measuring circuit, current measurement circuit, temperature measuring circuit, and output signal channel comprises pwm control signal output circuit, relay control signal output circuit, voltage follower circuit;
Electric performance element mainly comprises charger and discharge equipment, directly connects storage battery, completes the execution requirements of accumulator cell charging and discharging;
The peripheral circuit of control unit adopts independent circuits, peripheral circuit is divided into second source part and control board part, two parts are interconnected, and the tension measuring circuit of control board partial interior, current measurement circuit, temperature measuring circuit, voltage follower circuit, pwm control signal output circuit are connected MCU separately with relay control signal output circuit, independently run;
The inside, each autonomous channel of control unit adopts Phototube Coupling structure, uses photoelectric coupler isolation signal at input signal channel and output signal channel;
Core processor unit MCU uses the Cortex-M3 processor of ARM series;
The internal signal conversion of voltage, electric current, temperature measuring circuit adopts V/F conversion, and the conversion of pwm control signal output circuit internal signal adopts F/V conversion;
The control method of the Terminal Control Element of accumulator cell charging and discharging Distributed Control System is as follows:
First, the Terminal Control Element of accumulator cell charging and discharging Distributed Control System realizes communicating by CAN and host computer, receives the program control requirement of host computer transmission on the one hand; Real-time for the data of Terminal Control Element collection is transferred to host computer, so that monitor the operation conditions of whole control system on the other hand;
Secondly, the Terminal Control Element of accumulator cell charging and discharging Distributed Control System receives the control signal of input through keyboard, and the charge and discharge process of storage battery is controlled according to input requirements, the charge and discharge process controlling storage battery mainly exports control signal by processor core unit, through PWM passage and the relay signal passage of control unit, charger and discharge equipment are controlled, realizes storage battery and run according to charge and discharge control program;
Finally, Terminal Control Element can the temperature of collection site and the parameters of storage battery, comprises battery tension, electric current, temperature and ampere-hour number, for monitoring the charge status of storage battery, charge and discharge control program is modified, the charge and discharge process of storage battery is optimized; After control unit gathers each parameter, through excess temperature, voltage, current acquisition passage by each parameter transmission to processor core unit, show the real time data collected through liquid crystal display, the real time data simultaneously collected sends data to upper computer control system by CAN.
2. the Terminal Control Element of accumulator cell charging and discharging Distributed Control System according to claim 1, it is characterized in that: the charging modes adopted in charging process has: constant voltage constant-current charge, charge during constant voltage Dingan County, constant voltage is fixed time charging, constant current is fixed time charging, charge during constant current Dingan County, constant current constant-voltage charge.
3. the Terminal Control Element of accumulator cell charging and discharging Distributed Control System according to claim 1, is characterized in that: the discharge mode adopted in discharge process has: tension discharge is determined in constant current, constant current timing discharging, discharges during constant current Dingan County.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210367912.3A CN102842938B (en) | 2012-09-28 | 2012-09-28 | Terminal controlling unit of storage battery charging/discharging distributed control system |
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| CN201210367912.3A CN102842938B (en) | 2012-09-28 | 2012-09-28 | Terminal controlling unit of storage battery charging/discharging distributed control system |
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| CN102842938B true CN102842938B (en) | 2015-04-22 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105656172A (en) * | 2016-03-17 | 2016-06-08 | 青海大学 | Battery management system based on wind-solar complementation |
| CN106772106A (en) * | 2017-03-01 | 2017-05-31 | 珠海泰锦电气有限公司 | A kind of battery discharges inspection device and its system online |
| CN106849254A (en) * | 2017-03-10 | 2017-06-13 | 江苏捷高智能科技有限公司 | A kind of energy-conserving intelligent discharge and recharge all-in-one |
| CN111654424A (en) * | 2020-06-04 | 2020-09-11 | 武汉汇博鸿通电气有限公司 | Method and system for converting multipath parallel CAN into Ethernet |
| CN112201865A (en) * | 2020-09-28 | 2021-01-08 | 山东精工电源科技有限公司 | Automatic intelligent lithium battery capable of arbitrarily controlling charging and discharging time and displaying fault reason based on PLC |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1625014A (en) * | 2003-12-04 | 2005-06-08 | 比亚迪股份有限公司 | Dynamic power supply managment system for electric vehicle |
| CN202178345U (en) * | 2011-08-19 | 2012-03-28 | 杜晓峰 | Repairing device of lead-acid storage battery |
| CN202856403U (en) * | 2012-09-28 | 2013-04-03 | 山东轻工业学院 | Terminal control unit of storage battery charge/discharge distributed control system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US20080111517A1 (en) * | 2006-11-15 | 2008-05-15 | Pfeifer John E | Charge Controller for DC-DC Power Conversion |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1625014A (en) * | 2003-12-04 | 2005-06-08 | 比亚迪股份有限公司 | Dynamic power supply managment system for electric vehicle |
| CN202178345U (en) * | 2011-08-19 | 2012-03-28 | 杜晓峰 | Repairing device of lead-acid storage battery |
| CN202856403U (en) * | 2012-09-28 | 2013-04-03 | 山东轻工业学院 | Terminal control unit of storage battery charge/discharge distributed control system |
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