CN109343511A - A kind of DCS control system common mode and series mode rejection ratio test device and test method - Google Patents
A kind of DCS control system common mode and series mode rejection ratio test device and test method Download PDFInfo
- Publication number
- CN109343511A CN109343511A CN201811232571.2A CN201811232571A CN109343511A CN 109343511 A CN109343511 A CN 109343511A CN 201811232571 A CN201811232571 A CN 201811232571A CN 109343511 A CN109343511 A CN 109343511A
- Authority
- CN
- China
- Prior art keywords
- control system
- rejection ratio
- common mode
- mode rejection
- signal source
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B23/00—Testing or monitoring of control systems or parts thereof
- G05B23/02—Electric testing or monitoring
- G05B23/0205—Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults
- G05B23/0259—Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults characterized by the response to fault detection
- G05B23/0262—Confirmation of fault detection, e.g. extra checks to confirm that a failure has indeed occurred
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/20—Pc systems
- G05B2219/24—Pc safety
- G05B2219/24065—Real time diagnostics
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Testing Electric Properties And Detecting Electric Faults (AREA)
Abstract
The invention discloses a kind of DCS control system common modes and series mode rejection ratio test device and test method, including standard signal source, interference signal source, circuit connection device, tested control system and man-machine interface, standard signal source and interference signal source are connect with circuit connection device, circuit connection device is connect with the channel I/O of tested control system, tested control system is connect with man-machine interface, by in tested set-up of control system function fitter, big value selector, small value selector, summing function generator, five class function code of logarithm function generator, simultaneously at tested control system surface setting common mode and series mode rejection ratio test operation interface, complete common mode and the automatic test of series mode rejection ratio test, the voltage max Umax after introducing interference can be accurately obtained in test process, minimum value Umin, to protect It demonstrate,proves DCS control system common mode and series mode rejection ratio accuracy rate is 100%, the present apparatus is more more convenient than manual measurement mode, working efficiency is higher.
Description
Technical field
The present invention relates to computer control system technical field of performance test, and in particular to a kind of DCS control system common mode
With series mode rejection ratio test device and test method.
Background technique
Power plant routine DCS system common mode and series mode rejection ratio are tested: manually connecing input terminal plus a direct current to channel
It presses (standard signal), value is the 1/2 to 2/3 of full scale, is then gradually increased common mode respectively with two kinds of situations are exchanged by direct current
Interference voltage, Umax, Umin show value of the interior signal of manual record certain period of time, records common mode disturbance voltage value at this time
Uc obtains the inhibition ratio of corresponding interference voltage by common mode and series mode rejection ratio calculation formula.This method is using artificial acquisition number
According to since the signal acquisition unit period is generally 1 millisecond, control system signal show value refreshing frequency is lower (1 second), so people
Umax, Umin of work record are not necessarily the maximum and minimum value of test period signal, cause the inhibition being calculated than inaccurate
Really, this method disadvantages such as that there are calculated results is unreliable, working efficiency is low.
Summary of the invention
Present invention solves the technical problem that: propose a kind of DCS control system common mode and series mode rejection ratio test device and survey
Method for testing, to overcome manual testing's accuracy rate existing in the prior art not high, test job is time-consuming and laborious, low efficiency asks
Topic.
Technical solution of the present invention:
A kind of DCS control system common mode and series mode rejection ratio test device, including standard signal source, interference signal source, circuit connect
Line device, tested control system and man-machine interface, the standard signal source and interference signal source are connect with circuit connection device, institute
The circuit connection device stated is connect with the channel I/O of tested control system, and the tested control system is connect with man-machine interface.
The tested control system includes function fitter, big value selector, small value selector, summing function hair
Raw device, five class function code of logarithm function generator.
The man-machine interface is DCS engineer station.
The tested control system surface is provided with test operation interface.
A kind of test method of DCS control system common mode and series mode rejection ratio test device, passes through application control system group
State controller, implantation common mode and series mode rejection ratio automatic measurement functional module, be packed into control system man-machine interface common mode with
Series mode rejection ratio test pictures access standard signal source, interference signal source to the channel control system I/O by circuit connection device,
Implanted automatic measurement module carries out common mode to the channel control system I/O and tests automatically with series mode rejection ratio.
Beneficial effects of the present invention: a kind of DCS control system common mode and series mode rejection ratio test device and test side are proposed
Method, by tested set-up of control system function fitter, big value selector, small value selector, summing function generator,
Five class function code of logarithm function generator, while in tested control system surface setting common mode and series mode rejection ratio test operation circle
Common mode and the automatic test of series mode rejection ratio test are completed, after capable of accurately obtaining introducing interference in test process of the present invention in face
Voltage max Umax, minimum value Umin use this to guarantee that DCS system common mode and series mode rejection ratio accuracy rate are 100%
Device carries out test, and than using, manual measurement mode is more convenient, working efficiency is higher.
Detailed description of the invention
Fig. 1 is apparatus of the present invention attachment structure schematic diagram；
Fig. 2 is automatic measurement logical schematic of the present invention.
Specific embodiment
The present invention is further introduced with reference to the accompanying drawing, a kind of DCS control system common mode of the present invention with
Series mode rejection ratio test device and test mode, including standard signal source, interference signal source, circuit connection device, tested control system
System and man-machine interface, the standard signal source and interference signal source are connect with circuit connection device, the circuit connection device
It is connect with the channel I/O of tested control system, the tested control system is connect with man-machine interface.
The tested control system includes function fitter, big value selector, small value selector, summing function hair
Raw device, five class function code of logarithm function generator.
The man-machine interface is DCS engineer station.
The tested control system is HOLLiAS-MACSV scattered control system, and surface is provided with test operation interface.
By in tested set-up of control system function fitter, big value selector, small value selector, summing function hair
Raw device, five class function code of logarithm function generator, while being tested in tested control system surface setting common mode and series mode rejection ratio
Operation interface, completes common mode and the automatic test of series mode rejection ratio test, and it is dry accurately to obtain introducing in test process of the present invention
Voltage max Umax, minimum value Umin after disturbing, thus guarantee that DCS system common mode and series mode rejection ratio accuracy rate are 100%,
Carrying out test using the device, manual measurement mode is more convenient, working efficiency is higher than using.
A kind of test method of DCS control system common mode and series mode rejection ratio test device, passes through application control system group
State controller, implantation common mode and series mode rejection ratio automatic measurement functional module, be packed into control system man-machine interface common mode with
Series mode rejection ratio test pictures access standard signal source, interference signal source to the channel control system I/O by circuit connection device,
Implanted automatic measurement module carries out common mode to the channel control system I/O and tests automatically with series mode rejection ratio.
Claims (5)
1. a kind of DCS control system common mode and series mode rejection ratio test device, it is characterised in that: including standard signal source, interference
Signal source, circuit connection device, tested control system and man-machine interface, the standard signal source and interference signal source are and circuit
Electric wire connecting junction connection, the circuit connection device are connect with the channel I/O of tested control system, the tested control system and people
The connection of machine interface.
2. a kind of DCS control system common mode according to claim 1 and series mode rejection ratio test device, it is characterised in that:
The tested control system includes function fitter, big value selector, small value selector, summing function generator, right
Number five class function code of function generator.
3. a kind of DCS control system common mode according to claim 1 and series mode rejection ratio test device, it is characterised in that:
The man-machine interface is DCS engineer station.
4. a kind of DCS control system common mode according to claim 1 and series mode rejection ratio test device, it is characterised in that:
The tested control system surface is provided with test operation interface.
5. a kind of test method of DCS control system common mode and series mode rejection ratio test device as described in claim 1, special
Sign is: application control system configuration controller, implantation common mode and series mode rejection ratio automatic measurement functional module, in control system
It is packed into common mode and series mode rejection ratio test pictures in man-machine interface, standard signal source, interference signal are accessed by circuit connection device
Source to the channel control system I/O, implanted automatic measurement module carry out common mode and series mode rejection ratio to the channel control system I/O
Automatic test.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811232571.2A CN109343511A (en) | 2018-10-22 | 2018-10-22 | A kind of DCS control system common mode and series mode rejection ratio test device and test method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811232571.2A CN109343511A (en) | 2018-10-22 | 2018-10-22 | A kind of DCS control system common mode and series mode rejection ratio test device and test method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109343511A true CN109343511A (en) | 2019-02-15 |
Family
ID=65311537
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811232571.2A Pending CN109343511A (en) | 2018-10-22 | 2018-10-22 | A kind of DCS control system common mode and series mode rejection ratio test device and test method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109343511A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103499969A (en) * | 2013-10-17 | 2014-01-08 | 贵州电力试验研究院 | Control system common-mode and series-mode rejection ratio testing method |
| CN104330742A (en) * | 2014-11-10 | 2015-02-04 | 绵阳市维博电子有限责任公司 | Method and device for suppressing series mode interference |
| CN206805286U (en) * | 2017-06-16 | 2017-12-26 | 中国大唐集团科学技术研究院有限公司华东分公司 | A kind of device of DCS system simulations amount signal acquisition browsing real-time data |
| CN208689440U (en) * | 2018-10-22 | 2019-04-02 | 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 |
-
2018
- 2018-10-22 CN CN201811232571.2A patent/CN109343511A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103499969A (en) * | 2013-10-17 | 2014-01-08 | 贵州电力试验研究院 | Control system common-mode and series-mode rejection ratio testing method |
| CN104330742A (en) * | 2014-11-10 | 2015-02-04 | 绵阳市维博电子有限责任公司 | Method and device for suppressing series mode interference |
| CN206805286U (en) * | 2017-06-16 | 2017-12-26 | 中国大唐集团科学技术研究院有限公司华东分公司 | A kind of device of DCS system simulations amount signal acquisition browsing real-time data |
| CN208689440U (en) * | 2018-10-22 | 2019-04-02 | 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 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105307099B (en) | A kind of test method of Loudspeaker Power Test System and power and low-frequency parameter | |
| CN100412542C (en) | Method for real-timely testing performance of multi-channel photovoltaic cell | |
| CN208689440U (en) | A kind of DCS control system common mode and series mode rejection ratio test device | |
| CN206805286U (en) | A kind of device of DCS system simulations amount signal acquisition browsing real-time data | |
| CN103542877A (en) | Method for calibrating aircraft starting box comprehensive inspection tester | |
| CN109343511A (en) | A kind of DCS control system common mode and series mode rejection ratio test device and test method | |
| CN209017042U (en) | A kind of light sends the system that power and optical receiver sensitivity are tested automatically | |
| CN105242219B (en) | Method for automatically measuring DC voltage conversion efficiency | |
| CN201600444U (en) | Voltage monitor intelligent verification platform | |
| CN203788304U (en) | Device for testing function of hardware interface | |
| CN202710695U (en) | Cable detector | |
| CN203786176U (en) | Intelligent mobile terminal based portable oscilloscope | |
| CN111856163B (en) | Non-contact single-rod asynchronous phase checking method | |
| CN205353209U (en) | A testboard for measuring warhead resistance | |
| CN210166454U (en) | Electrical measurement and calibration device of comprehensive protection measurement and control device | |
| CN203587717U (en) | Simple volt-ampere characteristics tester | |
| CN208314133U (en) | A kind of easy high-precision radio frequency test system | |
| CN205017271U (en) | Photovoltaic power plant system efficiency detection device | |
| CN204154739U (en) | A kind of accelerometer based on full-automatic power on/off starts reperformance test system | |
| CN110940851A (en) | Power detection device and method for modular programmable photovoltaic system | |
| CN201804053U (en) | Automatic test system for dynamic test | |
| CN210982714U (en) | Current transformer polarity remote calibration device | |
| CN205581236U (en) | Be applied to on --spot battery charging outfit detection device | |
| CN105785198B (en) | A kind of generating equipment detection system and detection method | |
| CN109541359A (en) | A kind of converter automatic test system and its application method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |