CN103499969A - Control system common-mode and series-mode rejection ratio testing method - Google Patents
Control system common-mode and series-mode rejection ratio testing method Download PDFInfo
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- CN103499969A CN103499969A CN201310487323.3A CN201310487323A CN103499969A CN 103499969 A CN103499969 A CN 103499969A CN 201310487323 A CN201310487323 A CN 201310487323A CN 103499969 A CN103499969 A CN 103499969A
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Abstract
The invention discloses a control system common-mode and series-mode rejection ratio testing method. The method is characterized in that a programmable configuration controller of a control system is applied, a measuring and calculating program is implanted, an operating picture is installed on a man-machine interface of the control system, and a standard signal source and an interference signal source are configured to perform common-mode and series-mode rejection ratio testing on the control system. According to the method, the problems existing in the manual testing are solved, so that the common-mode and series-mode rejection ratio testing work of the control system is high-quality and efficient. The device is applied to a DCS (distributed control system) of a power plant and control systems of other types. According to the method, the equipment investment cost is saved by using the resources of a tested object per se, and the working benefit and the testing accuracy are improved.
Description
Technical field
The present invention relates to a kind of control system common mode and series mode rejection ratio method of testing, belong to production control system electromagnetic interference measurement, EMI measurement field.
Background technology
At present, state's controlling system common mode and series mode rejection ratio test adopt manual measurement, image data, then manually processed, calculated the generation test result, there is Fundamentals of Measurement data deficiencies, representative not enough in this method of testing, the data test precision is not high, the shortcomings such as test job is consuming time, consumption is artificial, inefficiency.
Summary of the invention
The technical problem to be solved in the present invention is: a kind of control system common mode and series mode rejection ratio method of testing are provided, and not high to overcome the manual testing's precision existed in prior art, the deficiencies such as test job is consuming time, consumption is artificial, inefficiency.
Technical scheme of the present invention is as follows: the able to programme or configuration controller of application controls system self, implant common mode and series mode rejection ratio and test automatic process of measurement, the common mode of packing in the control system man-machine interface and series mode rejection ratio test operation picture, configuration standard signal source, interference signal source, to control system I/O passage by the common mode implanted and series mode rejection ratio is tested automatic process of measurement common mode and series mode rejection ratio is tested automatically.
Standard signal source, interference signal source are connected with the circuit connection device respectively, and the circuit connection device is connected with tested control system, and tested control system is connected with man-machine interface (engineer station).
The present invention has following beneficial effect: this method has solved the problem that the manual testing exists, and makes control system common mode and series mode rejection ratio test job become high-quality, high-level efficiency.This application of installation is in DCS Control System of Power Plant system and other type control system.This method is utilized the measurand own resource, has saved the equipment investment cost, has improved working efficiency and measuring accuracy.
The accompanying drawing explanation
Fig. 1 is automatic process of measurement block diagram of the present invention;
Fig. 2 is that equipment of the present invention forms schematic diagram.
Embodiment
Embodiments of the invention: existing to take No. 1 unit DCS control system of test Pan county power plant reconstruction project (HOLLiAS-MACSV that Hangzhou Hollysys Automation Co., Ltd. produces) common mode and series mode rejection ratio be example.
Application controls system self configuration controller, adopt the functions such as DCS system polygronal function, the selection of large value, the selection of little value, logarithmic function, establishment common mode and series mode rejection ratio are tested automatic process of measurement, the common mode of packing in the control system man-machine interface and series mode rejection ratio test operation picture, configuration standard signal source, interference signal source, to control system I/O passage by the common mode implanted and series mode rejection ratio is tested automatic process of measurement common mode and series mode rejection ratio is tested automatically.In Fig. 2, tested control system is the HOLLiAS-MACSV scattered control system, and man-machine interface is the DCS engineer station.Utilize HOLLiAS-MACSV scattered control system control module configuration Fig. 1 logical program, measure operation and show the engineer station, realize No. 1 unit DCS control system common mode of Pan county power plant reconstruction project and the automatic measurements and calculations of series mode rejection ratio, improved measuring accuracy and work efficiency.
Claims (2)
1. a control system common mode and series mode rejection ratio method of testing, it is characterized in that: the able to programme or configuration controller of application controls system self, implant common mode and series mode rejection ratio and test automatic process of measurement, the common mode of packing in the control system man-machine interface and series mode rejection ratio test operation picture, configuration standard signal source, interference signal source, to control system I/O passage by the common mode implanted and series mode rejection ratio is tested automatic process of measurement common mode and series mode rejection ratio is tested automatically.
2. control system common mode according to claim 1 and series mode rejection ratio method of testing, it is characterized in that: comprise that following equipment forms: standard signal source, interference signal source are connected with the circuit connection device respectively, the circuit connection device is connected with tested control system I/O passage, tested control system is connected with man-machine interface, to control system I/O passage by the common mode implanted and series mode rejection ratio is tested automatic process of measurement common mode and series mode rejection ratio is tested automatically.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310487323.3A CN103499969A (en) | 2013-10-17 | 2013-10-17 | Control system common-mode and series-mode rejection ratio testing method |
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| CN201310487323.3A CN103499969A (en) | 2013-10-17 | 2013-10-17 | Control system common-mode and series-mode rejection ratio testing method |
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| CN103499969A true CN103499969A (en) | 2014-01-08 |
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| CN201310487323.3A Pending CN103499969A (en) | 2013-10-17 | 2013-10-17 | Control system common-mode and series-mode rejection ratio testing method |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104125011A (en) * | 2014-07-28 | 2014-10-29 | 中国电子科技集团公司第四十一研究所 | Device and method for testing background light suppression ratio of ultraviolet communication receiver machine |
| CN104316865A (en) * | 2014-11-05 | 2015-01-28 | 中国电子科技集团公司第四十三研究所 | Method for testing isolation suppression ratio of magnetic isolation amplifier |
| CN109343511A (en) * | 2018-10-22 | 2019-02-15 | 贵州电网有限责任公司 | A kind of DCS control system common mode and series mode rejection ratio test device and test method |
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| US20060012437A1 (en) * | 2004-07-19 | 2006-01-19 | Stmicroelectronics S.A. | Method for differential-mode processing of an incident voltage relative to a reference voltage and corresponding device |
| CN101820303A (en) * | 2010-01-25 | 2010-09-01 | 苏州泰思特电子科技有限公司 | Radiation noise test method applied to power line communication network |
| CN202693755U (en) * | 2012-05-08 | 2013-01-23 | 安徽理工大学 | Comprehensive test device for integrated circuit |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104125011A (en) * | 2014-07-28 | 2014-10-29 | 中国电子科技集团公司第四十一研究所 | Device and method for testing background light suppression ratio of ultraviolet communication receiver machine |
| CN104316865A (en) * | 2014-11-05 | 2015-01-28 | 中国电子科技集团公司第四十三研究所 | Method for testing isolation suppression ratio of magnetic isolation amplifier |
| CN109343511A (en) * | 2018-10-22 | 2019-02-15 | 贵州电网有限责任公司 | A kind of DCS control system common mode and series mode rejection ratio test device and test method |
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Application publication date: 20140108 |