CN204103583U - A kind of power supply circuits of intelligent pressure regulating station - Google Patents
A kind of power supply circuits of intelligent pressure regulating station Download PDFInfo
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- CN204103583U CN204103583U CN201420455839.XU CN201420455839U CN204103583U CN 204103583 U CN204103583 U CN 204103583U CN 201420455839 U CN201420455839 U CN 201420455839U CN 204103583 U CN204103583 U CN 204103583U
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Abstract
The utility model relates to a kind of power supply circuits of intelligent pressure regulating station, and it comprises: the main power source of powering for kilowatt meter reading-out system; Power supply coupling capacitor, it is connected in parallel on the two ends of described main power source; Super capacitor, its one end is connected with the positive pole of described main power source; Charge protection resistance, its one end is connected with the other end of described super capacitor, and its other end is connected with the negative pole of described main power source; Load equivalent resistance, it is connected in parallel on the two ends of described main power source; First diode, between its positive pole being connected to described main power source and super capacitor; Second diode, it is connected in parallel on the two ends of described charge protection resistance.The utility model adopts super capacitor as the energy-storage travelling wave tube for subsequent use of power supply circuits, effectively improves the performance of power supply circuits, extends the useful life of main power source, solves the bottleneck problem that restriction intelligent meter data recording system is powered.
Description
Technical field
The utility model relates to a kind of power supply circuits of intelligent pressure regulating station, particularly a kind of analog circuit of powering for Intelligent Optimal voltage regulating station, belongs to Power supply and optimizes field.
Background technology
Greatly develop the background of the green energy resources such as natural gas in country under, domestic each urban pipe network distributing system is also expanded along with the expansion of urban construction scale.Gas transmission and distribution situation is increasingly sophisticated, it is also proposed higher requirement to gas monitoring means.In this case, intelligent meter data recording (AMR) system is arisen at the historic moment, this system not only can collect real time data and by networking technology by these information transmission to central database; Billing clients accurately can also be produced, and provide power failure, information such as wiring stability and self diagnosis etc. to client.
Up-to-date wireless kilowatt meter reading-out system not only need power supply can effectively with constant rate of speed to run inner member, but also want the peak power that can process required for wireless launcher.Such power demand can shorten the life-span of most of battery.When mode of operation changes, the peak power requirements of many battery supply sets may far beyond the capacity of battery, and some also needs heavy current pulse power.And battery will provide such power, be difficult to not increase performance fault risk, shorten working life, occur battery failures even in advance.Because adopted chemical energy memory mechanism can occur aging, battery all has limited life cycle.Another problem of conventional batteries is, they have very large inside equivalent series resistance (ESR), thus cannot supply highpowerpulse consistently.And most of intelligent meter data recording system works under being operated in the hot and humid adverse circumstances such as down-hole, and these limiting temperatures seriously will reduce the service behaviour of battery, and can cause shorter battery life.When the temperature of the surroundings is low, the internal resistance of battery can significantly increase.Independently battery may not have enough power for transmitter, thus can cause shorter battery life, and systematic function declines.
Utility model content
The purpose of this utility model is to provide a kind of power supply circuits of intelligent pressure regulating station, it adopts super capacitor as the energy-storage travelling wave tube for subsequent use of power supply circuits, effectively improve the performance of power supply circuits, extend the useful life of main power source, solve the bottleneck problem that restriction intelligent meter data recording system is powered.
For achieving the above object, the utility model provides a kind of power supply circuits of intelligent pressure regulating station, and it comprises: the main power source of powering for kilowatt meter reading-out system; Super capacitor, its one end is connected with the positive pole of described main power source; Charge protection resistance, its one end is connected with the other end of described super capacitor, and its other end is connected with the negative pole of described main power source; Load equivalent resistance, it is connected in parallel on the two ends of described main power source; First diode, between its positive pole being connected to described main power source and super capacitor; Second diode, it is connected in parallel on the two ends of described charge protection resistance.
The described positive pole of the first diode is connected with the positive pole of main power source, and the negative pole of this first diode is connected with super capacitor.
The described positive pole of the second diode is connected with the negative pole of main power source, and the positive pole of this second diode is connected between super capacitor and charge protection resistance.
The first described diode and the second diode all adopt germanium diode.
The power supply circuits at intelligent pressure regulating station described in the utility model, also comprise power supply coupling capacitor, and it is connected in parallel on the two ends of described main power source.
The capacitance of described power supply coupling capacitor is microfarad range.
In sum, the power supply circuits at intelligent pressure regulating station provided by the utility model, adopt super capacitor to replace reserve battery as the energy-storage travelling wave tube for subsequent use of power supply circuits, namely effectively can reduce the infringement of high power discharge to main power source, electricity for subsequent use can be provided for power supply circuits again; The current direction adopting two germanium diodes to replace switch relays to control in charging and discharging process, effectively can reduce power and the design cost of power supply circuits.
The power supply circuits at intelligent pressure regulating station provided by the utility model, adopt as far as possible few components and parts, can suitably reduce its scale; With the highest cost performance, save development cost; The performance of power supply circuits is made to reach optimum, reduce high power discharge to the infringement in the useful life of main power source, make reach maximum the useful life of main power source, and enough pre-warning times can be had when main power source does not have electricity, super capacitor is relied on temporarily to power, to change and then to improve the flying power at intelligent pressure regulating station in time, avoid its operating interruptions.
The power supply circuits at intelligent pressure regulating station provided by the utility model, overcome various shortcoming and deficiency that main power source powers separately, effectively improve the performance of power supply circuits, extend the useful life of main power source, solve the bottleneck problem that restriction intelligent meter data recording system is powered.The development of also powering for related Control System provides a kind of method that can put into practice.
Accompanying drawing explanation
Fig. 1 is the structural representation of the power supply circuits at intelligent pressure regulating station in the utility model.
Embodiment
Below in conjunction with Fig. 1, describe a preferred embodiment of the present utility model in detail.
As shown in Figure 1, be the power supply circuits at the intelligent pressure regulating station that the utility model provides, it comprises: the main power source S powered for kilowatt meter reading-out system, and for powering to other all components and parts in power supply circuits; Power supply coupling capacitor C, it is connected in parallel on the two ends of described main power source S; Super capacitor Cs, its one end is connected with the positive pole of described main power source S, for providing transient state high-power for power supply circuits, can be used as again energy-storage travelling wave tube and improving power supply circuits flying power; Charge protection resistance R, its one end is connected with the other end of described super capacitor Cs, and its other end is connected with the negative pole of described main power source S, for the limit electric current that charges, avoids causing damage to super capacitor Cs; Load equivalent resistance RL, it is connected in parallel on the two ends of described main power source S; First diode D1, between the positive pole that its connection is arranged on described main power source S and super capacitor Cs, for controlling the sense of current in charging and discharging process; Second diode D2, it is connected in parallel on the two ends of described charge protection resistance R, for the sense of current in controlled discharge process.
The positive pole of the first described diode D1 is connected with the positive pole of main power source S, and the negative pole of this first diode D1 is connected with super capacitor Cs.
The positive pole of the second described diode D2 is connected with the negative pole of main power source S, and the positive pole of this second diode D2 is connected between super capacitor Cs and charge protection resistance R.
The first described diode D1 and the second diode D2 adopts germanium diode.
The capacitance of described power supply coupling capacitor C is microfarad range, so it can not cause too large impact to the main charging and discharging performance of whole power supply circuits, negligible.
In the utility model, adopt super capacitor Cs as the energy-storage travelling wave tube for subsequent use of Automatic meter reading system.Super capacitor, also known as electrochemical capacitor or farad capacitor or gold electric capacity, is a kind of electrochemical element being carried out energy storage by polarized electrolytic matter from growing up the seventies and eighties in last century.It is different from traditional chemical power source, be a kind of power supply with property between traditional capacitor and battery, but its thermal energy storage process chemical reaction does not occur, and thermal energy storage process is reversible.So super capacitor can charge hundreds thousand of times repeatedly, its general principle is the same with the double electric layer capacitor of other kinds, is all to utilize the double electrical layers of active carbon porous electrode and electrolyte composition to obtain vast capacity.The outstanding advantages of super capacitor is that power density is high, and the discharge and recharge time is short, have extended cycle life, operating temperature range is wide, is the one that in the double electric layer capacitor having dropped into volume production in the world, capacity is maximum.Super capacitor adopts electrostatic energy memory mechanism, there are not wearing and tearing, so in fact have the life cycle of endless.The internal resistance of super capacitor is very low, can supply highpowerpulse, and institute thinks that main power source increases shunt capacitance, can help to provide power supply during pulse power.The super capacitor of low internal resistance and main power source are walked abreast and places, almost all required pulse current requirement can be met like a cork.Energy before this lentamente from parallel connection, main power source that internal resistance is larger spreads out of and to super capacitor charging, then spreads out of from super capacitor with the form of burst current pulse when needs.After having transmitted pulse current, between twice pulsed duty cycle, super capacitor will be charged to the full voltage of main power source again again.Compared with when not comprising super capacitor in circuit, above-mentioned way will alleviate the pressure of main power source, and be extended to 3 times or more the entire lives of main power source.
Certainly, the super capacitor be applied in many consumer products also makes the water meter of automation and gas meter can work the longer time now.Super capacitor by meeting the peak power requirements in related application, for supplement and increase the main power source life-span provide a solution.In such applications, super capacitor is charged by main power source, and plays the effect of backup battery when main power source breaks down or needs to provide peak power.Super capacitor and main power source concurrent working, being used in those had both needed lasting low power discharge with continuous operation, needed again pulse power among the application of peak load.
As shown in Figure 1, when super capacitor Cs is in charged state, main power source S, by circuit loop abhfg, charges to super capacitor Cs; When the load equivalent resistance RL larger instantaneous power of needs or main power source S do not have electricity, now power supply circuits are powered to load equivalent resistance RL by super capacitor Cs, now super capacitor Cs is in discharge condition, it is equivalent to one piece of reserve battery, is powered to load equivalent resistance RL by circuit loop bcdeh.
According to RC tank capacitance charge formula Uc=Us [1-exp(-t/RC)], wherein: Uc represents super capacitor Cs both end voltage, Us represents main power source S voltage, and t is the charging interval, R is the resistance value of the charging resistor R in loop, and C is the capacitance of super capacitor Cs.As t=RC, Uc=0.63Us, be exactly when charging between t when being 1 times of RC, the voltage U c at super capacitor Cs two ends is 63% of voltage U s of main power source S.In like manner can calculate, when when charging, t is 2 times of RC, the voltage U c at super capacitor Cs two ends is 86% of voltage U s of main power source S.When charging, t is 3 times of RC, the voltage U c at super capacitor Cs two ends is 95% of voltage U s of main power source S.When charging, t is 4 times of RC, the voltage U c at super capacitor Cs two ends is 98% of voltage U s of main power source S.When charging, t is 5 times of RC, the voltage U c at super capacitor Cs two ends is 99% of voltage U s of main power source S.So charging interval t is at least required to be 5 times of RC, the voltage U c at guarantee super capacitor Cs two ends and the voltage U s approximately equal of main power source S.
According to RC tank capacitance electric discharge formula Uc=U0 exp(-t/RC), wherein: Uc represents super capacitor Cs both end voltage, U0 represents super capacitor Cs two ends discharge initiation voltage, and t is discharge time, R is the resistance value of the charging resistor R in loop, and C is the capacitance of super capacitor Cs.As t=RC, Uc=0.37U0, be exactly upon discharging between t when being 1 times of RC, the voltage U c at super capacitor Cs two ends is 37% of its discharge initiation voltage U0.In like manner can calculate, when upon discharging, t is 2 times of RC, the voltage U c at super capacitor Cs two ends is 14% of its discharge initiation voltage U0.When upon discharging, t is 3 times of RC, the voltage U c at super capacitor Cs two ends is 5% of its discharge initiation voltage U0.When upon discharging, t is 4 times of RC, the voltage U c at super capacitor Cs two ends is 2% of its discharge initiation voltage U0.When upon discharging, t is 5 times of RC, the voltage U c at super capacitor Cs two ends is 0.7% of its discharge initiation voltage U0.So discharge time, t was at least 5 times of RC, the voltage U c at guarantee super capacitor Cs two ends is approximate to give out light.
Consider the factors such as the cost performance of super capacitor Cs, in the present embodiment, select soar Li Xun company produce super capacitor, its rated voltage should be greater than the supply power voltage of intelligent voltage regulator.Because of the factor such as overshoot of main power source, the rated voltage of super capacitor will leave certain surplus.Need to consider that the super capacitor charging and discharging time can not too soon or the factor such as too slow simultaneously, if the charging interval is too slow, so the emitter of intelligent voltage regulator is when repeatedly working, and super capacitor will can not have time enough to obtain energy supplement from main power source all the time; If discharge time is too fast, super capacitor just may remain complete less than main power source replacing, and its electricity will be depleted and then affect the normal work of intelligent voltage regulator.
When the super capacitor Cs in power supply circuits is in discharge condition, need to consider some problems.When being first electric discharge, the circuit branch of super capacitor Cs also can not carry out reverse charging to main power source S branch road, otherwise can cause the waste for no reason of energy.Therefore, for guaranteeing super capacitor Cs only to the branch road unidirected discharge of load equivalent resistance RL, increasing between the positive pole and super capacitor Cs of main power source exactly and a germanium diode D1 is set.Germanium diode why is selected to be because the forward conduction voltage of germanium diode only has about 0.2V, relative to the node pressure of silicon diode 0.7V, the voltage that when can make charging, super capacitor Cs can reach is larger, and the electricity that germanium diode D1 loses is relatively little.Secondly; when the super capacitor Cs in power supply circuits discharges to load equivalent resistance RL; germanium diode D2 is by charge protection resistance R short circuit; if there is no germanium diode D2; charge protection resistance R and load equivalent resistance RL will be cascaded, and can cause the discharge voltage of super capacitor Cs on charge protection resistance R by dividing potential drop.If the different resistive values of charge protection resistance R and load equivalent resistance RL is little; or the resistance value of charge protection resistance R is when being greater than load equivalent resistance RL; voltage when super capacitor Cs discharges on load equivalent resistance RL will be significantly less than the voltage at super capacitor Cs two ends, and the electricity that namely super capacitor Cs stores can lose a lot on charge protection resistance R when discharging.
The selection of charge protection resistance R not only will consider discharge and recharge time and price factor, also will consider the problem of its rated power.In conjunction with two germanium diodes, namely the relevant components and parts of power supply circuits can be decided.Due to the dividing potential drop effect of germanium diode, during charging, main power source S is connected to load equivalent resistance RL by germanium diode D1 and holds, and only have the loss of voltage of about 0.2V, but whole power supply circuits normally can work.During electric discharge, due to the dividing potential drop effect of germanium diode D2, the voltage that super capacitor Cs can be reached on load equivalent resistance RL can lose 0.2V again.After power supply circuits described in the utility model being connected to the power input of intelligent voltage regulator, the voltage at super capacitor Cs two ends can increase, super capacitor Cs is described in charging, the charging interval of monitoring super capacitor Cs meets calculating acquired results, and power supply circuits can normally work.When super capacitor is charged (its both end voltage is 99% of main power source), disconnect main power source, power supply circuits still can work on the sufficiently long time after launching early warning information (relying on the electric discharge of super capacitor Cs to power to load), thus meet the demands.
In sum, the power supply circuits at intelligent pressure regulating station provided by the utility model, adopt super capacitor to replace reserve battery as the energy-storage travelling wave tube for subsequent use of power supply circuits, namely effectively can reduce the infringement of high power discharge to main power source, electricity for subsequent use can be provided for power supply circuits again; The current direction adopting two germanium diodes to replace switch relays to control in charging and discharging process, effectively can reduce power and the design cost of power supply circuits.
The power supply circuits at intelligent pressure regulating station provided by the utility model, adopt as far as possible few components and parts, can suitably reduce its scale; With the highest cost performance, save development cost; The performance of power supply circuits is made to reach optimum, reduce high power discharge to the infringement in the useful life of main power source, make reach maximum the useful life of main power source, and enough pre-warning times can be had when main power source does not have electricity, super capacitor is relied on temporarily to power, to change and then to improve the flying power at intelligent pressure regulating station in time, avoid its operating interruptions.
The power supply circuits at intelligent pressure regulating station provided by the utility model, overcome various shortcoming and deficiency that main power source powers separately, effectively improve the performance of power supply circuits, extend the useful life of main power source, solve the bottleneck problem that restriction intelligent meter data recording system is powered.The development of also powering for related Control System provides a kind of method that can put into practice.
Although content of the present utility model has done detailed introduction by above preferred embodiment, will be appreciated that above-mentioned description should not be considered to restriction of the present utility model.After those skilled in the art have read foregoing, for multiple amendment of the present utility model and substitute will be all apparent.Therefore, protection range of the present utility model should be limited to the appended claims.
Claims (6)
1. the power supply circuits at intelligent pressure regulating station, is characterized in that, comprise:
For the main power source (S) that kilowatt meter reading-out system is powered;
Super capacitor (Cs), its one end is connected with the positive pole of described main power source (S);
Charge protection resistance (R), its one end is connected with the other end of described super capacitor (Cs), and its other end is connected with the negative pole of described main power source (S);
Load equivalent resistance (RL), it is connected in parallel on the two ends of described main power source (S);
First diode (D1), between its positive pole being connected to described main power source (S) and super capacitor (Cs);
Second diode (D2), it is connected in parallel on the two ends of described charge protection resistance (R).
2. the power supply circuits at intelligent pressure regulating station as claimed in claim 1, it is characterized in that, the positive pole of described the first diode (D1) is connected with the positive pole of main power source (S), and the negative pole of this first diode (D1) is connected with super capacitor (Cs).
3. the power supply circuits at intelligent pressure regulating station as claimed in claim 2; it is characterized in that; the positive pole of described the second diode (D2) is connected with the negative pole of main power source (S), and the positive pole of this second diode (D2) is connected between super capacitor (Cs) and charge protection resistance (R).
4. the power supply circuits at intelligent pressure regulating station as claimed in claim 3, it is characterized in that, described the first diode (D1) and the second diode (D2) adopt germanium diode.
5. the power supply circuits at intelligent pressure regulating station as claimed in claim 1, it is characterized in that, also comprise power supply coupling capacitor (C), it is connected in parallel on the two ends of described main power source (S).
6. the power supply circuits at intelligent pressure regulating station as claimed in claim 5, it is characterized in that, the capacitance of described power supply coupling capacitor (C) is microfarad range.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201420455839.XU CN204103583U (en) | 2014-08-13 | 2014-08-13 | A kind of power supply circuits of intelligent pressure regulating station |
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| CN201420455839.XU CN204103583U (en) | 2014-08-13 | 2014-08-13 | A kind of power supply circuits of intelligent pressure regulating station |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106710178A (en) * | 2017-01-09 | 2017-05-24 | 邯郸美的制冷设备有限公司 | Remote-control unit and remote-control system |
| CN106783397A (en) * | 2017-01-20 | 2017-05-31 | 深圳市方大自动化***有限公司 | A kind of delay circuit in relay circuit |
| CN111049548A (en) * | 2019-12-31 | 2020-04-21 | 上海飞奥燃气设备有限公司 | 4G transmission gas pressure regulating station controller and optimization method thereof |
-
2014
- 2014-08-13 CN CN201420455839.XU patent/CN204103583U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106710178A (en) * | 2017-01-09 | 2017-05-24 | 邯郸美的制冷设备有限公司 | Remote-control unit and remote-control system |
| CN106783397A (en) * | 2017-01-20 | 2017-05-31 | 深圳市方大自动化***有限公司 | A kind of delay circuit in relay circuit |
| CN111049548A (en) * | 2019-12-31 | 2020-04-21 | 上海飞奥燃气设备有限公司 | 4G transmission gas pressure regulating station controller and optimization method thereof |
| CN111049548B (en) * | 2019-12-31 | 2021-09-17 | 上海飞奥燃气设备有限公司 | 4G transmission gas pressure regulating station controller and optimization method thereof |
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