CN104682366A - Protecting method of master controller of air blower - Google Patents
Protecting method of master controller of air blower Download PDFInfo
- Publication number
- CN104682366A CN104682366A CN201510086330.1A CN201510086330A CN104682366A CN 104682366 A CN104682366 A CN 104682366A CN 201510086330 A CN201510086330 A CN 201510086330A CN 104682366 A CN104682366 A CN 104682366A
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- ups
- alternating current
- protective module
- blower fan
- overvoltage protective
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Abstract
The invention relates to a protecting method of a master controller of an air blower. The method comprises the steps as follows: installing an overvoltage protection module between 230V of an alternating current and a UPS, wherein the 230V of alternating current can supply power for the UPS through the overvoltage protection module; the UPS supplying power for a stabilized voltage supply, and the stabilized voltage supply converting the 230V of alternating current into the 24V of direct current; the stabilized voltage supply is connected with the master controller of the air blower for supplying 24V of direct current. When the power grid works while not exceeding the continuous-running voltage, the overvoltage protection module works normally; when the power grid is undulated to cause voltage rise, or the power grid is struck by lightning to cause voltage rise, the overvoltage protection module can protect the master controller of the air blower. By means of installing the overvoltage protection module, when over voltage of a supply circuit of the air blower is caused due to fluctuation of electric network or lightning stroke, the overvoltage protection module can perform over voltage protection for each circuit module of the air blower, so that a bigger economic loss is avoided.
Description
Technical field
The present invention relates to the guard method of parts in a kind of fan master control system, particularly about a kind of guard method of blower fan main controller.
Background technology
Full well wind energy turbine set three phase is positioned at the northwestward, Zhangbei County, and installed capacity is 49.5MW, amounts to 66.Because physical features is higher, this area belongs to thunderbolt hotspots.Therefore, when thunderstorm weather, three phase blower fans are often struck by lightning and are damaged.
Such as, in May, 2011, power network fluctuation caused 220KV transformer station of Zhangbei County to trip, so cause full well wind energy turbine set three, the fourth phase amounts to the whole off-grid of 132 Fans.After power system restoration is normal, blower fan opens in machine process, find that the empty folding of three phase 10#, 19#, 23#, 24#, 25# blower fan F14.2 is not gone up, check and find the power supply short circuit of blower fan for fan main controller WP3100 internal circuit board WP3023, thus cause F14.2 to trip.Because blower fan main controller WP3100 is bad, blower fan cannot normally run, and finally has to more ventilating fan main controller WP3100.The main cause of this event is caused to be that power network fluctuation causes blower interior to power transient overvoltage, thus cause the direct current 24V overvoltage for fan main controller WP3100, cause the short circuit of blower fan main controller WP3100 internal circuit board, damage 5 Fans main controller WP3100 altogether, direct economic loss reaches 500,000 yuan.Again such as; thundery sky three phase in July, 2011, No. 55 fan troubles were shut down; after site inspection, find fan operation interface display anemobiagraph without display wind speed, wind vane without showing, going off course without display and shock sensor fault, the insurance of discovery blower fan lightning arrester simultaneously all burns out.Find that the anemobiagraph of blower fan, wind vane, WP4084 vibrating sensor, yaw detector, blower fan main controller WP3100 and WP4060 all burn out after further examination.Confirm by analysis, because thunderbolt caused fan circuit voltage, to cause blower fan 24V power supply abnormal, and then burn out above-mentioned parts.This time in event, direct economic loss reaches 100,000 yuan.
At present, owing to not taking corresponding safeguard measure to blower fan main controller WP3100 in prior art, therefore often there is the phenomenon that blower fan main controller WP3100 burns out in thunderstorm weather.
Summary of the invention
For the problems referred to above, the object of this invention is to provide the guard method of the blower fan main controller that can prevent blower fan master controller from burning when a kind of blower fan meets with thunderbolt or power network fluctuation.
For achieving the above object, the present invention takes following technical scheme: a kind of guard method of blower fan main controller, and it comprises the following steps: 1) between 230V alternating current and UPS, arrange an overvoltage protective module; The first input end of overvoltage protective module is connected with the live wire L of 230V alternating current, and its second input is connected with the zero line N of 230V alternating current; Two outputs of overvoltage protective module are connected with the input of UPS respectively, and 230V alternating current is powered to UPS2 by overvoltage protective module; 2) the live wire end UPS of UPS
lbe connected with the first input end of stabilized voltage power supply, the zero line side UPS of UPS
nbe connected with the second input of stabilized voltage power supply, UPS powers to stabilized voltage power supply, and stabilized voltage power supply converts 230V alternating current to 24V direct current; 3) output of stabilized voltage power supply is connected with blower fan main controller, for it provides 24V direct current; When electrical network is no more than maximum continuous operating voltage work, overvoltage protective module normally works; When electrical network run into fluctuation cause voltage raise or electrical network meet with thunderbolt cause voltage to raise time, overvoltage protective module shields to blower fan main controller.
Described step 1) in, overvoltage protective module adopts Surge Protector.
The present invention is owing to taking above technical scheme, it has the following advantages: the present invention owing to arranging an overvoltage protective module between 230V alternating current and UPS, 230V alternating current is powered to UPS by overvoltage protective module, UPS is to stabilized voltage power supply uninterrupted power supply, and after stabilized voltage power supply converts 230V alternating current to 24V direct current, fan main controller is powered; When electrical network be no more than maximum continuous operating voltage work time, overvoltage protective module normally works, when electrical network run into fluctuation cause voltage raise or electrical network meet with thunderbolt cause voltage to raise time, overvoltage protective module plays a protective role to blower fan main controller; Therefore the present invention can prevent blower fan master controller from burning when blower fan meets with thunderbolt or power network fluctuation, thus reduces economic loss further.Based on above advantage, the present invention can be widely used in the protection of blower fan main controller.
Accompanying drawing explanation
Fig. 1 is the principle schematic of the guard method of blower fan main controller of the present invention
Embodiment
Below in conjunction with accompanying drawing, the present invention is described in detail.
Adopt the guard method of blower fan main controller of the present invention to protect blower fan main controller, it comprises following content:
1) as shown in Figure 1, an overvoltage protective module 1 is set between 230V alternating current and UPS (Uninterruptible Power System, uninterrupted power supply) 2; The first input end of overvoltage protective module 1 is connected with the live wire L of 230V alternating current, and its second input is connected with the zero line N of 230V alternating current; Two outputs of overvoltage protective module 1 are connected with the input of UPS2 respectively, and 230V alternating current is powered to UPS2 by overvoltage protective module 1.
2) the live wire end UPS of UPS2
lbe connected with the first input end of stabilized voltage power supply 3, the zero line side UPS of UPS2
nbe connected with the second input of stabilized voltage power supply 3, UPS2 carries out uninterrupted power supply to stabilized voltage power supply 3, and stabilized voltage power supply 3 converts 230V alternating current to 24V direct current.
3) output of stabilized voltage power supply 3 is connected with blower fan main controller WP3100, for it provides 24V direct current.When electrical network is no more than maximum continuous operating voltage work, overvoltage protective module 1 normally works; When electrical network run into fluctuation cause voltage raise or electrical network meet with thunderbolt cause voltage to raise time, overvoltage protective module 1 couple of blower fan main controller WP3100 shields.
Above-mentioned steps 1) in, overvoltage protective module 1 adopts Surge Protector, and when electrical network is no more than maximum continuous operating voltage work, in overvoltage protective module 1, piezo-resistance is high-impedance state; When because of power network fluctuation or Lightning Over-voltage, blower fan makes that between two electrodes of piezo-resistance, voltage exceedes ignition voltage; gap in piezo-resistance is breakdown; by arc discharge by overvoltage fault offset; after impact; electric arc is extinguished by arc quenching system; in overvoltage protective module 1, piezo-resistance returns to high-impedance state, thus shields to blower fan main controller WP3100.
The various embodiments described above are only for illustration of the present invention; wherein the structure of each parts, connected mode and method step etc. all can change to some extent; every equivalents of carrying out on the basis of technical solution of the present invention and improvement, all should not get rid of outside protection scope of the present invention.
Claims (2)
1. a guard method for blower fan main controller, it comprises the following steps:
1) overvoltage protective module is set between 230V alternating current and UPS; The first input end of overvoltage protective module is connected with the live wire L of 230V alternating current, and its second input is connected with the zero line N of 230V alternating current; Two outputs of overvoltage protective module are connected with the input of UPS respectively, and 230V alternating current is powered to UPS2 by overvoltage protective module;
2) the live wire end UPS of UPS
lbe connected with the first input end of stabilized voltage power supply, the zero line side UPS of UPS
nbe connected with the second input of stabilized voltage power supply, UPS powers to stabilized voltage power supply, and stabilized voltage power supply converts 230V alternating current to 24V direct current;
3) output of stabilized voltage power supply is connected with blower fan main controller, for it provides 24V direct current; When electrical network is no more than maximum continuous operating voltage work, overvoltage protective module normally works; When electrical network run into fluctuation cause voltage raise or electrical network meet with thunderbolt cause voltage to raise time, overvoltage protective module plays a protective role to blower fan main controller.
2. the guard method of a kind of blower fan main controller as claimed in claim 1, is characterized in that: described step 1) in, overvoltage protective module adopts Surge Protector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510086330.1A CN104682366A (en) | 2015-02-16 | 2015-02-16 | Protecting method of master controller of air blower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510086330.1A CN104682366A (en) | 2015-02-16 | 2015-02-16 | Protecting method of master controller of air blower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104682366A true CN104682366A (en) | 2015-06-03 |
Family
ID=53317104
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510086330.1A Pending CN104682366A (en) | 2015-02-16 | 2015-02-16 | Protecting method of master controller of air blower |
Country Status (1)
| Country | Link |
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| CN (1) | CN104682366A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101719664A (en) * | 2008-09-30 | 2010-06-02 | 再生动力系统股份公司 | Overload protection device for wind farms |
| CN102013727A (en) * | 2010-12-10 | 2011-04-13 | 苏州能健电气有限公司 | Built-in uninterrupted power supply of wind power generation paddle changing system |
| CN103343729A (en) * | 2013-07-23 | 2013-10-09 | 上海电气集团股份有限公司 | Integrated wind power generation electrical system |
| CN104348207A (en) * | 2013-08-06 | 2015-02-11 | 上海万德风力发电股份有限公司 | Interconnected distributed type wind-solar complementary power generation system |
-
2015
- 2015-02-16 CN CN201510086330.1A patent/CN104682366A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101719664A (en) * | 2008-09-30 | 2010-06-02 | 再生动力系统股份公司 | Overload protection device for wind farms |
| CN102013727A (en) * | 2010-12-10 | 2011-04-13 | 苏州能健电气有限公司 | Built-in uninterrupted power supply of wind power generation paddle changing system |
| CN103343729A (en) * | 2013-07-23 | 2013-10-09 | 上海电气集团股份有限公司 | Integrated wind power generation electrical system |
| CN104348207A (en) * | 2013-08-06 | 2015-02-11 | 上海万德风力发电股份有限公司 | Interconnected distributed type wind-solar complementary power generation system |
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Application publication date: 20150603 |