CN204578146U - A kind of back-up source for pitch-controlled system - Google Patents
A kind of back-up source for pitch-controlled system Download PDFInfo
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- CN204578146U CN204578146U CN201520217174.3U CN201520217174U CN204578146U CN 204578146 U CN204578146 U CN 204578146U CN 201520217174 U CN201520217174 U CN 201520217174U CN 204578146 U CN204578146 U CN 204578146U
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Abstract
A kind of back-up source for pitch-controlled system, comprise super electric capacity energy storage means, capacitor type charger, mounting bracket, described capacitor type charger input connects 230V AC power of the prior art, described capacitor type charger output connects the input of super electric capacity energy storage means, and the output of super electric capacity energy storage means connects pitch-controlled system DC bus of the prior art; Described super electric capacity energy storage means is made up of multiple super capacitor connection in series-parallel, and described multiple super capacitor to be fixed on mounting bracket and to be arranged at and becomes bottom oar battery rack; Described capacitor type charger to be fixed on mounting bracket and to be arranged at and becomes bottom oar battery rack.The utility model is mainly used in the pitch-controlled system of the non-super capacitor of former backup power system, ensureing under the prerequisite consistent with original system function, improve reliability and the economy of back-up source, original for change oar back-up source replacement cycle was promoted to 10 years from 18 months.
Description
Technical field
The utility model belongs to variable pitch control system of wind generating technical field, especially belongs to a kind of and improves the backup power system technical field becoming oar reliability.
Background technology
China's wind power generation presented fast-developing situation from 2005, and the trend that wind turbine generator single-machine capacity increases year by year is more and more obvious.The target that the raising of the maximization of wind-force Wind turbines, unit installed power is the research of all Wind turbines, Design and manufacture business constantly pursues.Variable-pitch control system compares fixed pitch system, and improve reliability and the wind energy conversion efficiency of Wind turbines, unit starting performance is good, stable output power, and meanwhile, variable-pitch control system blade is relatively simple, lightweight, is beneficial to and manufactures large-scale wind electricity unit.Because China's wind power pitch-controlled system is started late, early stage megawatt-level wind set pitch control control system, mainly based on foreign brand name, comprises MOOG, SSB etc.And these producer's extensive use sealed valve control formula lead-acid battery energy storage devices form ups power power supply in support.In wind energy turbine set actual moving process, due to reasons such as lead acid accumulator are not low temperature resistant, cycle charge-discharge number of times is few, pitch-controlled system battery backup unit has occurred that fault is many, life-span short situation.It is reported, the wind generating set pitch control system back-up source storage battery replacement cycle is 18-24 month, in the life cycle of blower fan, it is over half that storage battery renewal cost accounts for change oar maintenance cost, no matter from economic benefit or the reliability perspectives of system cloud gray model, battery backup unit has all become link very weak in pitch-controlled system, and this phenomenon is because severe low temperature environment is huge on life of storage battery impact.In all sign accumulator parameters, usual employing monitoring accumulator voltage judges battery condition, but battery tension can not its energy situation of complete reaction, there is " empty electricity " situation, so in blower fan actual moving process, occur that the unreliable situation probability of driving that causes of back-up source is higher.And super capacitor self character is applicable to being applied to pitch-controlled system back-up source very much.
At present, China wind-power market adopts the pitch-controlled system quantity of storage battery power supply in support to account for more than half share, storage battery exist the replacement cycle short, more to change jobs heavy, the shortcoming such as monitoring method is single, maintenance cost is high.
Current change oar back-up source is unreliable, and its basic reason is:
Back-up source energy storage device service lifetime of accumulator is low, and storage temperature is-15 ~ 40 DEG C and needs to store under the state being full of electricity, and storage period should carry out more than 3 ~ 6 months supplementing electricity.Environmental suitability is poor, and working temperature is 0 ~ 40 DEG C.
Increasing wind energy turbine set owner appreciates the inferior position becoming oar battery backup unit, initiatively propose to change super capacitor back-up source wish, the utility model is based on above-mentioned background analysis, do not changing on original system basis of software, use super capacitor substitutes, and improves the reliability of pitch-controlled system, economy.
Summary of the invention
For overcoming the above-mentioned problems in the prior art, the utility model discloses a kind of back-up source improving change oar reliability.Become oar back-up source reliability for improving, the utility model adopts super capacitor to be back-up source, adopts to the capacitor type charger of super capacitor charging simultaneously, and design super capacitor mounting bracket, makes full use of original system battery rack and install.
The utility model is concrete by the following technical solutions:
For a back-up source for pitch-controlled system, comprise super electric capacity energy storage means, capacitor type charger, mounting bracket, it is characterized in that:
Described capacitor type charger input connects 230V AC power of the prior art, and described capacitor type charger output connects the input of super electric capacity energy storage means, and the output of super electric capacity energy storage means connects pitch-controlled system DC bus of the prior art;
Described super electric capacity energy storage means is made up of multiple super capacitor connection in series-parallel, and described multiple super capacitor to be fixed on mounting bracket and to be arranged at and becomes bottom oar battery rack;
Described capacitor type charger to be fixed on mounting bracket and to be arranged at and becomes bottom oar battery rack.
The utility model also preferably includes following scheme further:
Described multiple super capacitor accounts for 1/3rd of super electric capacity energy storage means total voltage by every section of voltage and is divided into three sections, the high voltage of the ultracapacitor that each section is connected in series is connected to described capacitor type charger, charger internal integrated capacitance all presses measuring ability module, for monitoring the voltage of the ultracapacitor that each section is connected in series.
Described ultracapacitor, carries test by LOAD FOR and band, meets at least three feathering energy.Select the super capacitor of Maxwell company to form described super electric capacity energy storage means, described super electric capacity energy storage means terminal voltage is 240V, and capacitance is 10.875F.
The utility model adopts existing capacitor voltage equalizing detection module in prior art to divide three sections to detect ultracapacitor and all presses performance.
The backup power system for pitch-controlled system that the utility model proposes has following technique effect:
1, maintenance period is long, reduces maintenance cost, has superior economy;
2, capacitance bracket is installed simple, solid and reliable, has higher reliability;
3, the super capacitor adopted is compared with battery, and environmental protection, can reduce the pollution to environment.
Accompanying drawing explanation
Accompanying drawing 1 is mounting structure schematic diagram of the present utility model.
Accompanying drawing 2 is electrical connection schematic diagram of the present utility model.
1 is battery rack of the prior art;
2 is 160V super capacitor;
3 is capacitor type charger;
4 is capacitor type charger stand;
5 is super capacitor support;
6 is 16V super capacitor;
7 is pitch-controlled system DC bus of the prior art;
1. be capacitor type charger input;
2. be capacitor type charger output;
3. be the integrated all pressures detection module of capacitor type charger;
4. be capacitor type charger " OK signal " end;
5. be capacitor type charger " capacitive faults " signal end;
6. 7. all test point is pressed for super electric capacity energy storage means.
Embodiment
According to Figure of description, the technical solution of the utility model is further described below.
First be the assembling of described super electric capacity energy storage means.Super electric capacity energy storage means in pitch-controlled system in each battery rack is made up of the connection in series-parallel of 350F/16.2V super capacitor monomer, the packaged type of two kinds of super capacitor monomers is have employed in the utility model, the first is the 16V super capacitor 6 obtained by 6 pieces of monomer series-connected encapsulation of super capacitor, the second is the 160V super capacitor 2 obtained by 60 pieces of monomer series-connected encapsulation of super capacitor, two kinds of super capacitor monomer encapsulation are the existing finished products of Maxwell company, and the encapsulation of super capacitor monomer is not at the row of this content of the patent.3 pieces of 160V super capacitors 2 and 18 pieces of 16V super capacitors 6 are installed with super capacitor support 5 and are fixed, and super capacitor support 5 is arranged at bottom battery rack 1 of the prior art, support and battery rack install and use construction bolt of the prior art.Every 1 piece of 160V super capacitor 2 and 6 pieces of 16V super capacitors 6 are composed in series one group, and three groups of access in parallel pitch-controlled system DC buss 7 of the prior art, electrical connection diagram as shown in Figure 2.
Next is the assembling of capacitor type charger 3.Capacitor type charger 3 and capacitor type charger stand 4 are installed fixing; Capacitor type charger stand 4 is arranged at bottom battery rack 1 of the prior art, support and battery rack install and use construction bolt of the prior art.1. capacitor type charger input connects the 230Vac power supply in prior art in battery rack.Capacitor type charger output is 2. in parallel with super electric capacity energy storage means.3. the integrated all pressures detection module of capacitor type charger has 6 voltage detecting points, and 6. 7. the super electric capacity energy storage means connected on 160V super capacitor 2 all presses test point respectively.Capacitor type charger 3 is with two-way fault detection signal, " capacitive faults " signal of fault is all pressed respectively for Detection capacitance type charger 3 faults itself " OK signal " and detection super electric capacity energy storage means, capacitor type charger " OK signal " holds 4. one end to connect 24V power supply of the prior art, and the other end connects PLC of the prior art; Capacitor type charger " capacitive faults " signal end 5. one end connects 24V power supply of the prior art, and the other end connects PLC of the prior art.The electrical connection diagram of capacitor type charger 3 as shown in Figure 2.
As shown in Figure 1, the electrical connection schematic diagram of super electric capacity energy storage means and capacitor type charger 3 as shown in Figure 2 for the mounting structure of super electric capacity energy storage means and capacitor type charger 3 and position relationship.
Claims (2)
1., for a back-up source for pitch-controlled system, comprise super electric capacity energy storage means, capacitor type charger, mounting bracket, it is characterized in that:
Described capacitor type charger input connects 230V AC power, and described capacitor type charger output connects the input of super electric capacity energy storage means, and the output of super electric capacity energy storage means connects pitch-controlled system DC bus of the prior art;
Described super electric capacity energy storage means is made up of multiple super capacitor connection in series-parallel, and described multiple super capacitor to be fixed on mounting bracket and to be arranged at and becomes bottom oar battery rack;
Described capacitor type charger to be fixed on mounting bracket and to be arranged at and becomes bottom oar battery rack.
2. the back-up source for pitch-controlled system according to claim 1, is characterized in that:
Described multiple super capacitor accounts for 1/3rd of super electric capacity energy storage means total voltage by every section of voltage and is divided into three sections, the high voltage of the ultracapacitor that each section is connected in series is connected to described capacitor type charger, charger internal integrated capacitance all presses measuring ability module, for monitoring the voltage of the ultracapacitor that each section is connected in series.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520217174.3U CN204578146U (en) | 2015-04-10 | 2015-04-10 | A kind of back-up source for pitch-controlled system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520217174.3U CN204578146U (en) | 2015-04-10 | 2015-04-10 | A kind of back-up source for pitch-controlled system |
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| CN204578146U true CN204578146U (en) | 2015-08-19 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110080942A (en) * | 2019-04-30 | 2019-08-02 | 固安华电天仁控制设备有限公司 | A kind of wind generating variable-propeller control system |
| CN110486224A (en) * | 2019-07-30 | 2019-11-22 | 固安华电天仁控制设备有限公司 | A kind of variable pitch electric power controller |
-
2015
- 2015-04-10 CN CN201520217174.3U patent/CN204578146U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110080942A (en) * | 2019-04-30 | 2019-08-02 | 固安华电天仁控制设备有限公司 | A kind of wind generating variable-propeller control system |
| CN110486224A (en) * | 2019-07-30 | 2019-11-22 | 固安华电天仁控制设备有限公司 | A kind of variable pitch electric power controller |
| CN110486224B (en) * | 2019-07-30 | 2021-06-29 | 国能信控互联技术(河北)有限公司 | Become oar power management device |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
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| CP03 | Change of name, title or address |
Address after: 065500 Industrial Park, Gu'an County, Langfang City, Hebei Province Patentee after: Guoneng information technology (Hebei) Co.,Ltd. Address before: 065500 North District of Gu'an Industrial Park, Langfang City, Hebei Province Patentee before: GU'AN HUADIAN TIANREN CONTROL EQUIPMENT Co.,Ltd. |