CN202614912U - Backup battery capacity detecting system of variable-pitch system - Google Patents
Backup battery capacity detecting system of variable-pitch system Download PDFInfo
- Publication number
- CN202614912U CN202614912U CN 201220147006 CN201220147006U CN202614912U CN 202614912 U CN202614912 U CN 202614912U CN 201220147006 CN201220147006 CN 201220147006 CN 201220147006 U CN201220147006 U CN 201220147006U CN 202614912 U CN202614912 U CN 202614912U
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- Prior art keywords
- backup battery
- battery
- pitch
- battery capacity
- switch
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Abstract
The utility model discloses a backup battery capacity detecting system of a variable-pitch system, which is composed of a battery, a switch, a load resistor and a sampling resistor, wherein the battery, the switch, the load resistor and the sampling resistor are connected in series. The backup battery capacity detecting system further comprises a single chip microcomputer and a memory connected with the single chip microcomputer. The single chip microcomputer controls on-off of the switch, collects voltage signals of the battery and the sampling resistor, operates and compares the voltage signals, and finally writes data into the memory. The detecting system disclosed by the utility model realizes detection on the backup battery capacity of the variable-pitch system. As the backup battery is always in a state of floating charge, so if the detected battery capacity is low, it is indicated that the backup battery is aging and loses efficacy. Therefore, the detecting system can also detect the aging degree of the backup battery indirectly.
Description
Technical field
The utility model relates to a kind of battery capacity detection system, relates to a kind of backup battery capacity check system of pitch-controlled system specifically.
Background technology
Electric power is indispensable form of energy in daily production and the life.Traditional thermal power generation not only will consume a large amount of fossil resources, and can discharge a large amount of greenhouse gases; Though nuclear energy power generation is emission greenhouse gas not, danger very in case accident occurs, will cause irreversible destruction to environment, so various countries are the clean energy resource of representative greatly developing with the wind-power electricity generation all in recent years.
Pitch-controlled system is the vitals in the complete blower; Its effect is the rotating speed of angle with the change blade that facing the wind through adjustment blower fan blade; Optimizing the generating efficiency of complete blower at ordinary times, if blower fan generation part fault or ambient wind velocity are too fast, it can utilize the stall principle to make the blower fan blade arrive feather position again and stop operating; Thereby avoid complete blower stall to collapse, so the reliable and stable operation of pitch-controlled system is the precondition and guarantee of the reliable and stable operation of whole wind power generator.
Though pitch-controlled system is built-in with backup battery; But routine work all is from the electric network source power taking, and backup battery just is in floating charge state, only under the situation that electric network source is lost; Pitch-controlled system just begins from the backup battery work to take power; This just means that if backup battery breaks down pitch-controlled system just can't be worked so under the situation that electric network source is lost, so how many capacity of backup battery will be directly connected to the job stability of pitch-controlled system; But in the prior art, existing pitch-controlled system does not also all detect the function of backup battery capacity.
The utility model content
The utility model technical matters to be solved just provides the system that a kind of capacity to backup battery that is built in the pitch-controlled system detects.
In order to solve the problems of the technologies described above, the utility model adopts following technical scheme:
A kind of backup battery capacity check system of pitch-controlled system; This system is made up of the battery that is cascaded, switch, pull-up resistor and sample resistance; Also include single-chip microcomputer and be attached thereto the storer that connects; The folding of Single-chip Controlling switch is also gathered battery and the laggard row operation comparison of the voltage signal of sample resistance, at last writing data into memory.
Further, the switch of circuit is a normally open, its closure of Single-chip Controlling when needs detect, and single-chip microcomputer is controlled its disconnection again after detecting completion.
Further, pull-up resistor can be the motor that is connected with battery.
The beneficial effect of the utility model is:
The utility model discloses a kind of backup battery capacity check system of pitch-controlled system; This system carries out small change on the basis of pitch-controlled system available circuit; Increased devices such as switch and sample resistance, formed the battery detecting loop, and come to control detecting the loop with single-chip microcomputer; And outcome record in storer, thereby realized the backup battery capacity of pitch-controlled system is detected.Because backup battery is in floating charge state always, if it is lower to detect the battery capacity of gained, backup battery ageing failure is described, so the degree of aging that native system also can the indirect detection backup battery.
Description of drawings
Fig. 1 is that the circuit of the utility model embodiment 2 connects synoptic diagram.
Embodiment
For the purpose, technical scheme and the advantage that make the utility model is clearer,, the utility model is further elaborated below in conjunction with accompanying drawing and embodiment.Should be appreciated that specific embodiment described herein only in order to explanation the utility model, and be not used in qualification the utility model.
Embodiment 1; Present embodiment discloses a kind of backup battery capacity check system of pitch-controlled system; This system is made up of the battery that is cascaded, switch, pull-up resistor and sample resistance; Also include single-chip microcomputer and be attached thereto the storer that connects, the folding of Single-chip Controlling switch is also gathered battery and the laggard row operation comparison of the voltage signal of sample resistance, at last writing data into memory.The concrete control calculating process of single-chip microcomputer does, receive detect instruction after, CS is closed, the conducting of battery detecting loop, continuous discharge 3-10 began to detect and the recording cell voltage U after second
1With sample resistance voltage, cut-off switch and write down the battery voltage value U that moment recovers again after detect accomplishing
2, according to Ohm law, just can obtain electric current I divided by the resistance of sample resistance with sample resistance voltage, then according to thevenin equivalent circuit, the internal resistance of calculating battery does
Because the capacity of battery is relevant with internal resistance, internal resistance is more little, and capacity is big more; Otherwise it is big more like internal resistance; Then the capacity of battery is more little, so obtain the internal resistance of battery, just can equivalent draw the capacity of battery; Why wanting continuous discharge 3-10 to detect after second, is to postpone to reduce the influence of dash current to test result during this period of time in order to utilize again.
Embodiment 2, and present embodiment discloses the backup battery capacity check system of another kind of pitch-controlled system, are under the situation of floating charge state at the backup battery of pitch-controlled system always; With backup battery 1, switch 2, pull-up resistor 3 are cascaded with sample resistance 4 and constitute the detection loop of backup battery; Aforesaid pull-up resistor can use the inner device of pitch-controlled system to carry out equivalence, selects the motor of pitch-controlled system in the present embodiment for use, and aforesaid switch is in normally open; Only after single-chip microcomputer 5 receives the detection instruction, just can control its closure, battery detecting loop conducting this moment; Continuous discharge 3-10 is after second, and single-chip microcomputer begins to detect and record backup battery voltage U
1With sample resistance voltage, cut-off switch and write down the backup battery magnitude of voltage U that moment recovers again after detect accomplishing
2Utilize the computing method of previous embodiment 1 at last; Just can obtain the capacity of backup battery; Because backup battery is in floating charge state always, thus battery capacity reduce also just mean the aging of backup battery, so this capacity check system also can obtain the aging conditions of backup battery indirectly.Single-chip microcomputer can read and analyze the data recording that obtains in storer 6 when needed to these data, the convenient comparison that realizes backup battery capacity historical data.
Claims (3)
1. the backup battery capacity check system of a pitch-controlled system; It is characterized in that: this system is made up of the battery that is cascaded, switch, pull-up resistor and sample resistance; Also include single-chip microcomputer and be attached thereto the storer that connects; The folding of Single-chip Controlling switch is also gathered battery and the laggard row operation comparison of the voltage signal of sample resistance, at last writing data into memory.
2. the backup battery capacity check system of pitch-controlled system according to claim 1, it is characterized in that: the switch of circuit is a normally open, its closure of Single-chip Controlling when needs detect, detect accomplish after single-chip microcomputer control its disconnection again.
3. the backup battery capacity check system of pitch-controlled system according to claim 1, it is characterized in that: pull-up resistor can be the motor that is connected with battery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220147006 CN202614912U (en) | 2012-04-01 | 2012-04-01 | Backup battery capacity detecting system of variable-pitch system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220147006 CN202614912U (en) | 2012-04-01 | 2012-04-01 | Backup battery capacity detecting system of variable-pitch system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202614912U true CN202614912U (en) | 2012-12-19 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220147006 Expired - Lifetime CN202614912U (en) | 2012-04-01 | 2012-04-01 | Backup battery capacity detecting system of variable-pitch system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202614912U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104820192A (en) * | 2015-04-29 | 2015-08-05 | 河北工业大学 | Online real-time battery monitoring device |
| CN107741565A (en) * | 2017-09-18 | 2018-02-27 | 河源市美晨联合智能硬件电子研究院 | Measurement apparatus, method, mobile terminal and readable storage medium storing program for executing |
-
2012
- 2012-04-01 CN CN 201220147006 patent/CN202614912U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104820192A (en) * | 2015-04-29 | 2015-08-05 | 河北工业大学 | Online real-time battery monitoring device |
| CN107741565A (en) * | 2017-09-18 | 2018-02-27 | 河源市美晨联合智能硬件电子研究院 | Measurement apparatus, method, mobile terminal and readable storage medium storing program for executing |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121219 |