CN2617069Y - Raid intelligent power factor dynamic compensating device - Google Patents
Raid intelligent power factor dynamic compensating device Download PDFInfo
- Publication number
- CN2617069Y CN2617069Y CN 03211878 CN03211878U CN2617069Y CN 2617069 Y CN2617069 Y CN 2617069Y CN 03211878 CN03211878 CN 03211878 CN 03211878 U CN03211878 U CN 03211878U CN 2617069 Y CN2617069 Y CN 2617069Y
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- power factor
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- Supply And Distribution Of Alternating Current (AREA)
Abstract
The utility model relates to a compensation reactive power device, in particular to a fast intelligent power-factor dynamic compensator, which is characterized in that: a current-voltage collector is connected with the power system; the collected current-voltage signals are transmitted to a monoboard computer, which outputs the calculated results; the compensating controller of the control capacitance controls the capacitor through a thyristor; the compensator taking six thyristors in a full-control delta connection as the input and elimination control element of the compensation condenser. The utility model has the advantages that: first, the input and elimination speed is fast, and the input and elimination frequency can reach 3000 times every minute (that is once every 20ms) when the mains frequency reaches 50Hz; second, the impact current of the power supply and apparatus can be diminished by the voltage zero-cross input and current zero-cross removal of the thyristor; third, without vibration and noise; fourth, without spark.
Description
Technical field the utility model belongs to the device of compensating power, relates to a kind of quick, intelligent type power factor dynamic compensator.
Background technology is present, existing compensation arrangement adopts the switching cycle controller basically, so, it is in the switching process, if want to reach the control precision height, the single pool-size when the configuration capacitor must be little, and the switching response speed is slow, the needed idle component of compensation network causes electrical network undercompensation or overcompensation quickly; If want to increase the capacity of single group capacitor, to improve rapidity, can cause that again the input of big electric capacity causes excessive rush of current to electrical network, simultaneously, switching cycle has still limited the switching speed of system.
Summary of the invention the utility model purpose provides that a kind of switching speed is fast, and impulse current is little, and vibration and noise are all very little in the switching process, and does not have the quick, intelligent type power factor dynamic compensator of switching spark generation.
The quick, intelligent type power factor of the utility model dynamic compensator content Description:
The quick, intelligent type power factor of the utility model dynamic compensator, it is characterized in that: the current/voltage collector is connected on the electrical network, electric current after will gathering then and voltage signal send and monolithic computer, result's output after monolithic computer will calculate, control capacitance compensation control is controlled capacitor with thyristor;
Compensator adopts 6 thyristors to be the fully-controlled type triangle connected mode switching control element of capacitor by way of compensation.
The quick, intelligent type power factor of the utility model dynamic compensator, its advantage is: 1) switching speed is fast, and when mains frequency was 50Hz, the switching frequency of its per minute can reach (be 20ms switching once) 3000 times; 2) the thyristor voltage zero passage drops into, and the excision of thyristor current flows zero passage is little to power supply and equipment impulse current; 3) friction and noise; 4) no-spark.
Description of drawings
Fig. 1 is quick, intelligent type power factor dynamic compensator structural representation
Fig. 2 is quick, intelligent type power factor dynamic compensator major loop wiring schematic diagram
Fig. 3 draws together the appearance schematic diagram for the cascade of quick, intelligent type power factor dynamic compensator system
The quick, intelligent type power factor of embodiment the utility model dynamic compensator is achieved in that below in conjunction with accompanying drawing and specifies.See Fig. 1, current acquisition device B links to each other with electrical network A with voltage acquisition device C, electric current after will gathering then and voltage signal send and monolithic computer E, monolithic computer E calculates power-factor angle with the current and voltage signals that obtains, monolithic computer calculates the capacitance of needs compensation according to current actual value D and power-factor angle, allow the maximum current of input again according to electrical network, control capacitance compensation control is controlled capacitor with thyristor H, drop into capacitor and excision capacitor to greatest extent, to realize the rapidity of system.Voltage acquisition device C gives over-voltage comparator G with voltage actual value F, gives monolithic computer then, under high-tension state, do not move with capacitor for voltage protection, thus the useful life of having improved capacitor widely.
See Fig. 2, the combination of major loop capacitor volume is to carry out designing and arranging according to the maximum input electric current that electrical network allows according to binary 8-4-2-1 sign indicating number or 3-2-1 combined method to continue, to realize the rapidity of system.
See Fig. 3, control system A and control system B tie the purpose that realizes drawing together appearance on same electrical network jointly, link to each other by connection, thereby have realized two capacitance compensation system coordination work, the oscillatory occurences when being unlikely to cause control system work.
Claims (4)
1, a kind of quick, intelligent type power factor dynamic compensator, it is characterized in that: the current/voltage collector is connected on the electrical network, electric current after will gathering then and voltage signal send and monolithic computer, result's output after monolithic computer will calculate, control capacitance compensation control is controlled capacitor with thyristor;
Compensator adopts 6 thyristors to be the fully-controlled type triangle connected mode switching control element of capacitor by way of compensation.
2, quick, intelligent type power factor dynamic compensator according to claim 1, it is characterized in that: current acquisition device B links to each other with electrical network A with voltage acquisition device C, electric current after will gathering then and voltage signal send and monolithic computer E, monolithic computer E calculates power-factor angle with the current and voltage signals that obtains, monolithic computer calculates the capacitance of needs compensation according to current actual value D and power-factor angle, allow the maximum current of input again according to electrical network, control capacitance compensation control is controlled capacitor with thyristor H; Voltage acquisition device C gives over-voltage comparator G with voltage actual value F, gives monolithic computer then.
3, quick, intelligent type power factor dynamic compensator according to claim 1, it is characterized in that: the combination of major loop capacitor volume is to carry out designing and arranging according to the maximum input electric current that electrical network allows according to binary 8-4-2-1 sign indicating number or 3-2-1 combined method to continue, to realize the rapidity of system.
4, quick, intelligent type power factor dynamic compensator according to claim 1, it is characterized in that: control system A and control system B tie the purpose that realizes drawing together appearance on same electrical network jointly, link to each other by connection again, thereby realized two capacitance compensation system coordination work.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03211878 CN2617069Y (en) | 2003-03-14 | 2003-03-14 | Raid intelligent power factor dynamic compensating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03211878 CN2617069Y (en) | 2003-03-14 | 2003-03-14 | Raid intelligent power factor dynamic compensating device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2617069Y true CN2617069Y (en) | 2004-05-19 |
Family
ID=34241738
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03211878 Expired - Fee Related CN2617069Y (en) | 2003-03-14 | 2003-03-14 | Raid intelligent power factor dynamic compensating device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2617069Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1845456B (en) * | 2006-04-29 | 2011-01-19 | 杨建宁 | Series type composite switch circuit of switched capacitor bank |
-
2003
- 2003-03-14 CN CN 03211878 patent/CN2617069Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1845456B (en) * | 2006-04-29 | 2011-01-19 | 杨建宁 | Series type composite switch circuit of switched capacitor bank |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |