CN204705675U - Wind-driven generator pitching accumulator tank internal resistance on-Line Monitor Device - Google Patents
Wind-driven generator pitching accumulator tank internal resistance on-Line Monitor Device Download PDFInfo
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- CN204705675U CN204705675U CN201520435594.9U CN201520435594U CN204705675U CN 204705675 U CN204705675 U CN 204705675U CN 201520435594 U CN201520435594 U CN 201520435594U CN 204705675 U CN204705675 U CN 204705675U
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- accumulator tank
- data acquisition
- acquisition equipment
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Abstract
The utility model provides a kind of wind-driven generator pitching accumulator tank internal resistance on-Line Monitor Device, comprising: data acquisition equipment, is connected with accumulator tank, for gathering voltage, the current parameters of accumulator tank; Serial ports turns Wi-Fi module, is connected with described data acquisition equipment, and the Parameter Switch for being exported by serial ports by data acquisition equipment is the parameter of wireless; Fan engine room WAP, turns Wi-Fi module wireless connections with described serial ports; Optical fiber switch at the bottom of blower fan tower, is connected with described fan engine room WAP; Centralized monitoring system, is connected with optical fiber switch at the bottom of described blower fan tower.By upper, without the need to changing existing accumulator tank charge and discharge loop, extra excitation and electric discharge do not applied to battery, by means of only collection accumulator tank being carried out to voltage, electric current, the on-line monitoring for the internal resistance of wind-driven generator pitching accumulator tank can be realized.
Description
Technical field
The utility model relates to wind-power electricity generation security monitoring field, particularly a kind of wind-driven generator pitching accumulator tank internal resistance on-Line Monitor Device.
Background technology
Wind generating set pitch control system, when normally running, relies on the work of electrical network civil power; When theft-resistant link chain fault appears in blower fan or electrical network is abnormal, pitch-controlled system will switch to backup battery feathering, for braking blower, once back-up source cannot complete feathering, then the major accident of hypervelocity driving, even tower very easily occur.Therefore, the safety in production of blower variable-pitch back-up source performance to blower fan plays vital effect.Internal resistance is the important parameter of reflection accumulator property, and in cell degradation process, its internal resistance is risen obviously early than the raising of terminal voltage during charging, therefore internal resistance detection comparatively voltage have better predictability to battery failure situation.
Utility model content
In view of this, fundamental purpose of the present utility model is, provides a kind of wind-driven generator pitching accumulator tank internal resistance on-Line Monitor Device, comprising:
Data acquisition equipment, is connected with accumulator tank, for gathering voltage, the current parameters of accumulator tank;
Serial ports turns Wi-Fi module, is connected with described data acquisition equipment, and the Parameter Switch for being exported by serial ports by data acquisition equipment is the parameter of wireless;
Fan engine room WAP, turns Wi-Fi module wireless connections with described serial ports;
Optical fiber switch at the bottom of blower fan tower, is connected with described fan engine room WAP;
Centralized monitoring system, is connected with optical fiber switch at the bottom of described blower fan tower.
By upper, without the need to changing existing accumulator tank charge and discharge loop, extra excitation and electric discharge do not applied to battery, by means of only collection accumulator tank being carried out to voltage, electric current, the on-line monitoring for the internal resistance of wind-driven generator pitching accumulator tank can be realized.
Optionally, described data acquisition equipment comprises: main control chip, and distinguishes connected current transducer and voltage transmitter.
By upper, respectively to the detection of accumulator tank voltage and electric current, thus calculate real-time internal resistance, to realize the on-line monitoring for accumulator tank internal resistance.
Optionally, described current transducer is two groups, and wherein the range of a group is 0 ~ 200A, and the range of another group is 0 ~ 35A.
By upper, when up time electric current is less, the current transducer namely by small-range accurately obtains, and when up time electric current is larger, the current transducer namely by wide range accurately obtains.
Optionally, described voltage transmitter is four groups, the change oar load-side return circuit coupling of the accumulator tank that three components is wherein not corresponding with three blades of aerogenerator;
Another group is coupled with the total voltage side loop of described accumulator tank.
By upper, the accumulator tank due to routine is three, adopts the three components in four groups of voltage transmitters not detect the different operating state of corresponding accumulator, and another group realizes the detection for the total voltage of accumulator tank.
Optionally, described data acquisition equipment also comprises the memory device and panalarm that are connected with described main control chip.
By upper, can store historical data by memory device, be convenient to damage curve analysis; Panalarm makes the clear and definite battery rack of maintenance personal go wrong.
Optionally, described main control chip comprises the circuit that model is TMS320F2812 cake core.
Optionally, the skin that described serial ports turns Wi-Fi module arranges water-proof coating.
By upper, outside the installation site turning Wi-Fi module due to serial ports is exposed to, if do not carry out water-proofing treatment to it, easily to make moist or by rain erosion.
Accompanying drawing explanation
Fig. 1 is the principle schematic of wind-driven generator pitching accumulator tank internal resistance on-Line Monitor Device;
Fig. 2 is the principle schematic of data acquisition equipment;
Fig. 3 is the principle schematic obtaining dynamic internal resistance.
Embodiment
Referring to Fig. 1 ~ Fig. 3, wind-driven generator pitching accumulator tank internal resistance on-Line Monitor Device described in the utility model is described in detail.
Be illustrated in figure 1 principle schematic of the present utility model, first, second, third accumulator tank that each blade includes vane propeller-changing motor (first, second, third vane propeller-changing motor (not shown)) and connects one to one with each vane propeller-changing motor.
Data acquisition equipment, corresponding with blade respectively accumulator tank connects, and for gathering the charging current of accumulator tank, discharge current and battery tension, and collected data is carried out processing rear output.
Figure 2 shows that the principle schematic of data acquisition equipment, concrete, comprise with lower device:
Current transducer 21, for automatically triggering crawl function when battery rack charge and discharge, namely responds to the current parameters in electric current charge and discharge process when accumulator tank is greater than 1A, and by continuous print current signal composition data curve in a period of time.In the present embodiment, adopt two groups of current transducers.Because the scope of electric current instantaneous discharge is about 0 ~ 150A, therefore, wherein the range of one group of current transducer is 0 ~ 200A, the range of another group current transducer is 0 ~ 35A, thus, when up time electric current is less, the current transducer namely by small-range accurately obtains, when up time electric current is larger, the current transducer namely by wide range accurately obtains.
Voltage transmitter 22, for automatically triggering crawl function when accumulator tank charge and discharge, namely responds to the voltage parameter of accumulator tank charge and discharge process, and by continuous print voltage signal composition data curve in a period of time.In the present embodiment, adopt four groups of voltage transmitters.The change oar load-side return circuit coupling of the accumulator tank that four groups of voltage transmitters three components is wherein not corresponding with three blades of aerogenerator, detects the voltage of three pieces of accumulator tanks; Another group is coupled with the total voltage side loop of described accumulator tank, detects total voltage.
Above-mentioned electric current, voltage parameter, after analog to digital conversion circuit 26 processes, transfer to main control chip 27.Analog-digital conversion circuit as described accessible site, in main control chip 27, also can adopt independent circuit.
Main control chip 27 for according to the current parameters that receives and voltage parameter, the internal resistance of calculating accumulator cabinet.As shown in Figure 3, namely when accumulator tank cuts out, the discharge current Ie before utilizing the changing value Δ U of battery tension and cutting out, calculates electric discharge and terminates internal resistance its principle of work
in formula, Ur and Ue represents that battery rack cuts out front voltage and cuts out rear instantaneous abrupt change voltage respectively.
According to above-mentioned principle, utilize instantaneous voltage U (t) of discharge process and momentary current I (t), the real-time internal resistance of any time in discharge process can be calculated
dynamic internal resistance can provide the trend of internal resistance change when discharging, and is conducive to the judgement to accumulator tank performance.
In the present embodiment, described main control chip 27 can adopt and comprise 32 control special DSP chips that model is TMS320F2812.As arithmetic core, it includes Flash, and dominant frequency, up to 150MHz, has digital signal processing, incident management and embedded Control function, is applicable to the occasion of data processing in enormous quantities.
In order to meet data processing storage demand, extending memory device in main control chip 27 outside, comprising the SRAM memory 28 of 512K*16bit and the flash storage 32 of 8MBytes.Described SRAM memory 28 is connected with main control chip 27 by XINTF external expansion interface; Flash storage 32 is connected with main control chip 27 by SPI interface.Above-mentioned storer can store historical data etc.
In addition, above-mentioned data export by the external interface of expansion, and described external interface includes but not limited to following several, RS232 interface 29, RS485 interface 30 and jtag interface 31.
In addition, also comprise as temperature sensor 23, acceleration transducer 24, further alternative, also comprise as gravity sensor, speed probe, direction sensor etc., for gather blade rotational positions, wheel speed, blade towards etc. parameter.After collected parameter is carried out analog-to-digital conversion process by the sensor, be sent to main control chip 27 by the GPIO interface of described main control chip 27.Preferably, the data gathered also comprise blade pitch angle, and converted by the stroke becoming oar direct current generator and obtain, the trip is measured by rotary transformer 33.The relation of monitoring battery rack internal resistance due to these sensors and the utility model is little, therefore is not described further at this.
In addition, also comprise real-time clock 25, for providing real-time clock information to main control chip 27.
Described main control chip 27 also for according to the parameter monitoring battery condition received, when a failure occurs, controls connected LED 34 as panalarm, to carry out alarm indication.
Serial ports turns Wi-Fi module, is connected respectively, built-in wireless network protocol IEEE802.11 protocol stack and ICP/IP protocol stack with described three data acquisition equipments, for realizing the conversion between RS232 interface data and/or RS485 interface data to wireless network.In the present embodiment, also need that Wi-Fi module is turned to described serial ports and carry out water-proofing treatment.The installation site turning Wi-Fi module due to serial ports is exposed to outdoor, if do not carry out water-proofing treatment to it, easily to make moist or by rain erosion.Concrete, the skin that can turn Wi-Fi module at serial ports arranges water-proof coating.
Fan engine room WAP, turns Wi-Fi module with described serial ports and communicates to connect, provide the access of wireless network.
Optical fiber switch at the bottom of blower fan tower, is connected with described fan engine room WAP, to realize the information interaction between blower fan and Central Control Room.Centralized monitoring system is included in Central Control Room, for monitoring the running status of each blower fan, and by the data display of accumulator tank to wind field fortune inspection personnel, comprise charging, discharging electric batteries state, warning message etc., fortune inspection personnel can also check the historical data information of battery by system, carry out parameter configuration by interface to preposition monitoring system.
The foregoing is only preferred embodiment of the present utility model, not in order to limit the utility model.In a word, all within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (7)
1. a wind-driven generator pitching accumulator tank internal resistance on-Line Monitor Device, is characterized in that, comprising:
Data acquisition equipment, is connected with wind-driven generator pitching accumulator tank, for gathering voltage, the current parameters of described accumulator tank;
Serial ports turns Wi-Fi module, is connected with described data acquisition equipment, and the Parameter Switch for being exported by serial ports by data acquisition equipment is the parameter of wireless;
Fan engine room WAP, turns Wi-Fi module wireless connections with described serial ports;
Optical fiber switch at the bottom of blower fan tower, is connected with described fan engine room WAP;
Centralized monitoring system, is connected with optical fiber switch at the bottom of described blower fan tower.
2. monitoring device according to claim 1, is characterized in that, described data acquisition equipment comprises: main control chip, and distinguishes connected current transducer and voltage transmitter.
3. monitoring device according to claim 2, is characterized in that, described current transducer is two groups, and wherein the range of a group is 0 ~ 200A, and the range of another group is 0 ~ 35A.
4. monitoring device according to claim 2, is characterized in that, described voltage transmitter is four groups, the change oar load-side return circuit coupling of the accumulator tank that three components is wherein not corresponding with three blades of aerogenerator;
Another group is coupled with the total voltage side loop of described accumulator tank.
5. monitoring device according to claim 2, is characterized in that, described data acquisition equipment also comprises the memory device and panalarm that are connected with described main control chip.
6. monitoring device according to claim 2, is characterized in that, described main control chip comprises the circuit that model is TMS320F2812 cake core.
7. monitoring device according to claim 1, is characterized in that, the skin that described serial ports turns Wi-Fi module arranges water-proof coating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520435594.9U CN204705675U (en) | 2015-06-23 | 2015-06-23 | Wind-driven generator pitching accumulator tank internal resistance on-Line Monitor Device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520435594.9U CN204705675U (en) | 2015-06-23 | 2015-06-23 | Wind-driven generator pitching accumulator tank internal resistance on-Line Monitor Device |
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| Publication Number | Publication Date |
|---|---|
| CN204705675U true CN204705675U (en) | 2015-10-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520435594.9U Expired - Fee Related CN204705675U (en) | 2015-06-23 | 2015-06-23 | Wind-driven generator pitching accumulator tank internal resistance on-Line Monitor Device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105510718A (en) * | 2016-01-20 | 2016-04-20 | 大唐（赤峰）新能源有限公司 | System for monitoring internal resistance of wind generator set storage battery and control method |
-
2015
- 2015-06-23 CN CN201520435594.9U patent/CN204705675U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105510718A (en) * | 2016-01-20 | 2016-04-20 | 大唐（赤峰）新能源有限公司 | System for monitoring internal resistance of wind generator set storage battery and control method |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151014 Termination date: 20180623 |