CN2833978Y - Generator protection control system - Google Patents
Generator protection control system Download PDFInfo
- Publication number
- CN2833978Y CN2833978Y CN 200520001542 CN200520001542U CN2833978Y CN 2833978 Y CN2833978 Y CN 2833978Y CN 200520001542 CN200520001542 CN 200520001542 CN 200520001542 U CN200520001542 U CN 200520001542U CN 2833978 Y CN2833978 Y CN 2833978Y
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- protection
- generator
- main control
- cpu main
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Abstract
The utility model relates to a generator protection control system, which comprises a signal detection unit, a CPU main control unit, a protection output unit, and a parameter setting and display unit, wherein the signal detection unit is used for detecting the voltage and current information of a generator. The CPU main control unit is connected with an output end of the signal detection unit and carries out analysis and calculation for the input data. The CPU main control unit also outputs control signals. The protection output unit is connected with an output end of the CPU main control unit and receives control signals of the CPU main control unit. The parameter setting and display unit is connected with an input end of the CPU main control unit and sets parameter values of the generator protection control system. The utility model takes embedded microprocessor with high reliability as a core and adopts a numerical control protection mode to solve the problem of relay protection of the generator. Thereby, the utility model has the characteristics of digitization, intelligence, etc., and can adapt various poor surroundings of power stations. The protection of the generator can be accurately, fast and reliably realized.
Description
Technical field
The utility model belongs to technical field of generators, particularly a kind of generator protection control system.
Background technology
At present, in the relaying protection of middle small plant, particularly be directed to the various safeguard measures of the main body-generator in power station, more than prolong with old-fashioned mechanical protective relaying device.This type of protective device ubiquity protection precision is not high, the insensitive shortcoming of movement response, and stability, reliability can reduce rapidly along with the fatigue of metal.
Summary of the invention
Technical problem to be solved in the utility model is: a kind of generator protection control system is provided, has characteristics such as digitlization, intellectuality, can adapt to the various poor environments in power station, accurately and fast, reliably generator is realized protection.
For solving the problems of the technologies described above, the utility model provides a kind of generator protection control system, comprising:
Detect the detecting signal unit of generator voltage, current information, this detecting signal unit comprises electric current, voltage transformer, change-over circuit, accurate detection and zero cross detection circuit;
Link to each other with the detecting signal unit output and the input data to be analyzed, to calculate and to export the CPU main control unit of control signal;
The protection output unit of the reception CPU main control unit control signal that links to each other with CPU main control unit output; And
The parameter setting and the display unit of the setting generator protection control system parameter value that links to each other with CPU main control unit input, this parameter setting and display unit comprise keyboard, the digital Unit two that show of LED.
The utlity model has following useful effect: because the utility model is that core adopts the numerical control protected mode to solve generator relaying protection problem with the embedded microprocessor of high reliability; thereby have characteristics such as digitlization, intellectuality; the various poor environments that can adapt to the power station, accurately and fast, reliably generator is realized protection.
Description of drawings
Fig. 1 is the utility model generator protection control system theory diagram.
Embodiment
Below in conjunction with Fig. 1 the utility model generator protection control system is described in detail.
As shown in Figure 1; this practical a kind of generator protection control system comprises: detect the detecting signal unit of generator voltage, current information, link to each other with the detecting signal unit output to parameter setting and the display unit that the CPU main control unit of control signal was analyzed, calculates and exported to the input data, the protection output unit that receives CPU main control unit control signal of linking to each other with CPU main control unit output reaches the setting generator protection control system parameter value that links to each other with CPU main control unit input.
This detecting signal unit comprises electric current, voltage transformer, change-over circuit, accurate detection and zero cross detection circuit.
This protection output unit is used for object of protection output protection control signal, and present embodiment is mainly with controlled relay output switching value signal.
This parameter setting and display unit comprise keyboard, the digital Unit two that show of LED.
During use; when described generator voltage, current anomaly, the CPU main control unit receive above-mentioned abnormal signal by analysis, calculate the output control command, occur when unusual in the parameter of being monitored; send the protection action command, reach the purpose that object of protection is realized protection.The utility model generator protection control system has following protection controlled function:
1. realize overvoltage protection to generator;
2. realize undervoltage alarm function to generator;
3. realize protection to the generator overcurrent, and tool inverse time lag function;
4. realize the too high driving protection of generator speed;
Short-circuit protection when 5. realizing to generator short circuit.
Because the utility model combines above-mentioned kinds of protect function in one; from but a kind of comparatively perfect generator protection system; the machine of not only can realizing substitutes the purpose of many mechanical types relaying protection, and the numeral and the intelligent control method that itself adopt have also improved the reliability and the accuracy of its protection greatly.
Claims (1)
1, a kind of generator protection control system is characterized in that, comprising:
Detect the detecting signal unit of generator voltage, current information, this detecting signal unit comprises electric current, voltage transformer, change-over circuit, accurate detection and zero cross detection circuit;
Link to each other with the detecting signal unit output and the input data to be analyzed, to calculate and to export the CPU main control unit of control signal;
The protection output unit of the reception CPU main control unit control signal that links to each other with CPU main control unit output; And
The parameter setting and the display unit of the setting generator protection control system parameter value that links to each other with CPU main control unit input, this parameter setting and display unit comprise keyboard, the digital Unit two that show of LED.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520001542 CN2833978Y (en) | 2005-01-28 | 2005-01-28 | Generator protection control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520001542 CN2833978Y (en) | 2005-01-28 | 2005-01-28 | Generator protection control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2833978Y true CN2833978Y (en) | 2006-11-01 |
Family
ID=37198293
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520001542 Expired - Lifetime CN2833978Y (en) | 2005-01-28 | 2005-01-28 | Generator protection control system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2833978Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102347600A (en) * | 2011-09-20 | 2012-02-08 | 吴昌华 | Generator control equipment |
| CN106451342A (en) * | 2016-08-23 | 2017-02-22 | 成都沃尔法特科技有限公司 | Intelligent protection method and intelligent protection circuit for realizing same |
-
2005
- 2005-01-28 CN CN 200520001542 patent/CN2833978Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102347600A (en) * | 2011-09-20 | 2012-02-08 | 吴昌华 | Generator control equipment |
| CN106451342A (en) * | 2016-08-23 | 2017-02-22 | 成都沃尔法特科技有限公司 | Intelligent protection method and intelligent protection circuit for realizing same |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C57 | Notification of unclear or unknown address | ||
| DD01 | Delivery of document by public notice |
Addressee: Lan Yuxi Document name: Notification of Termination of Patent Right |
|
| DD01 | Delivery of document by public notice |
Addressee: Huang Zhiming Document name: Notification to Pay the Fees |
|
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20150128 Granted publication date: 20061101 |
|
| DD01 | Delivery of document by public notice |
Addressee: Lan Yuxi Document name: Notification of Expiration of Patent Right Duration |