CN103726942A - Generator set monitoring system based on PLC - Google Patents
Generator set monitoring system based on PLC Download PDFInfo
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- CN103726942A CN103726942A CN201210382298.8A CN201210382298A CN103726942A CN 103726942 A CN103726942 A CN 103726942A CN 201210382298 A CN201210382298 A CN 201210382298A CN 103726942 A CN103726942 A CN 103726942A
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Abstract
The invention discloses a generator set monitoring system based on a PLC. The generator set monitoring system based on the PLC comprises a flow signal sensor, a vibration signal sensor, a rotating speed signal sensor, a temperature signal sensor, a pressure signal sensor, a signal conditioner, the PLC, an industrial personal computer, a motor control relay, an emergency oil supply on-off valve, a flow control valve and a manual/automatic switcher. The generator set monitoring system based on the PLC can monitor multiple signals, and therefore safety accidents of an internal combustion engine caused by a generator in an electricity generating process can be avoided. The generator set monitoring system based on the PLC has the advantages of being simple in structure, long in service life and high in integration level.
Description
Technical field
The present invention relates to a kind of supervisory system, relate in particular to a kind of generator set supervisory system based on PLC.
Background technique
Generating equipment of internal-combustion engine is the power generating equipment take internal-combustion engine as power, since eighties of last century starts the eighties, internal combustion engine generator group just starts to be widely used in China, through the development of more than 20 years, along with scientific and technological progress, the rise of new high-tech industry and the raising of living standards of the people, the application of generator set is constantly widened.Along with the development of sensor technology, computer technology and the network communications technology, various single-chip microcomputers, programmable controller and PC technology are widely used in control field, make computer measurement and control become the development trend of internal combustion engine generator group, thereby make increasing substantially of long-distance remote control and unmanned and automaticity become the feature of internal-combustion engine and development trend.But the obstacle of generator from causing at various factors, makes space shuttle can not get safe guarantee in flight course.
Summary of the invention
Object of the present invention is just to provide in order to address the above problem a kind of generator set supervisory system based on PLC.
The present invention is achieved through the following technical solutions above-mentioned purpose:
The present invention includes flux signal sensor, vibration signal sensor, rotary speed signal sensor, temperature signal sensor, pressure signal sensor, signal conditioner, PLC, process control machine, Electric Machine Control relay, emergent fuel feeding on-off valve, flow control valve and manual/auto switch, the signal output part of described flux signal sensor, the signal output part of described vibration signal sensor, the signal output part of described rotary speed signal sensor, the signal output part of the signal output part of described temperature signal sensor and described pressure signal sensor respectively with corresponding connection of testing signal input end of described signal conditioner, the signal output part of described signal conditioner is connected with the testing signal input end of described PLC, the control signal output terminal of described process control machine is connected with the control signal input end of described PLC, the signal input part of described Electric Machine Control relay, the control signal input end of described emergent fuel feeding on-off valve, the control signal input end of described flow control valve and the control signal input end of described manual/auto switch respectively with corresponding connection of control signal output terminal of described PLC.
Beneficial effect of the present invention is:
The present invention can be to the monitoring of multinomial signal, thereby has guaranteed that internal-combustion engine avoids the security incident causing because of generator in power generation process.That the present invention has advantages of is simple in structure, long service life and level of integration higher.
Accompanying drawing explanation
Fig. 1 is the structural representation of the generator set supervisory system based on PLC of the present invention.
Embodiment
Below in conjunction with accompanying drawing, the invention will be further described:
As shown in Figure 1: the present invention includes flux signal sensor, vibration signal sensor, rotary speed signal sensor, temperature signal sensor, pressure signal sensor, signal conditioner, PLC, process control machine, Electric Machine Control relay, emergent fuel feeding on-off valve, flow control valve and manual/auto switch, the signal output part of described flux signal sensor, the signal output part of described vibration signal sensor, the signal output part of described rotary speed signal sensor, the signal output part of the signal output part of described temperature signal sensor and described pressure signal sensor respectively with corresponding connection of testing signal input end of described signal conditioner, the signal output part of described signal conditioner is connected with the testing signal input end of described PLC, the control signal output terminal of described process control machine is connected with the control signal input end of described PLC, the signal input part of described Electric Machine Control relay, the control signal input end of described emergent fuel feeding on-off valve, the control signal input end of described flow control valve and the control signal input end of described manual/auto switch respectively with corresponding connection of control signal output terminal of described PLC.
Observing and controlling of the present invention to as if-the individual threephase alternator group take internal-combustion engine as power.Its measurement and control signal is: pressure, temperature, rotating speed, vibration, fuel flow, send each signal with pressure signal sensor, temperature signal sensor, rotary speed signal sensor, vibration signal sensor and flux signal sensor respectively.The working procedure of the working procedure of this generator set and this generator set of TT&C requirement is first to start oil depot oil feed pump, director valve checks charge oil pressure, suitable rear motor control relay work starter-generator, drives the power internal-combustion engine of generator to rotate by actuating motor.Speed probe sends tach signal, and before rotating speed is specified in arrival, the aperture of fuel flow modulating valve is starting aperture.Reach while specifying rotating speed, system is connected emergent fuel feeding on-off valve, internal-combustion engine ignition automatically.Then, by the control system control of internal-combustion engine self, to specified working speed, promote.To specify rotating speed time, the control system of internal-combustion engine self is sent instruction, cuts away (stopping) actuating motor.Until nominal operation rotating speed.Under rated condition, manual/auto switch work.After this, control system guarantees that the rotating speed of internal-combustion engine is constant.Before shutdown, must first disconnect Electric Machine Control relay, then close fuel control valve (during orderly closedown, first close flow control valve, then close emergent fuel feeding on-off valve, during emergent shutdown, the closing sequence of two valves is contrary).In omnidistance working procedure, detect each temperature, pressure and tachometer value, guarantee that each measured value must not exceed thresholding.Otherwise should send acoustooptic alarm and indicate is which pressure of which temperature or which rotating speed transfinite.And automatic emergency is shut down.
Claims (1)
1. the generator set supervisory system based on PLC, is characterized in that: comprise flux signal sensor, vibration signal sensor, rotary speed signal sensor, temperature signal sensor, pressure signal sensor, signal conditioner, PLC, process control machine, Electric Machine Control relay, emergent fuel feeding on-off valve, flow control valve and manual/auto switch, the signal output part of described flux signal sensor, the signal output part of described vibration signal sensor, the signal output part of described rotary speed signal sensor, the signal output part of the signal output part of described temperature signal sensor and described pressure signal sensor respectively with corresponding connection of testing signal input end of described signal conditioner, the signal output part of described signal conditioner is connected with the testing signal input end of described PLC, the control signal output terminal of described process control machine is connected with the control signal input end of described PLC, the signal input part of described Electric Machine Control relay, the control signal input end of described emergent fuel feeding on-off valve, the control signal input end of described flow control valve and the control signal input end of described manual/auto switch respectively with corresponding connection of control signal output terminal of described PLC.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210382298.8A CN103726942A (en) | 2012-10-11 | 2012-10-11 | Generator set monitoring system based on PLC |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210382298.8A CN103726942A (en) | 2012-10-11 | 2012-10-11 | Generator set monitoring system based on PLC |
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| CN103726942A true CN103726942A (en) | 2014-04-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210382298.8A Pending CN103726942A (en) | 2012-10-11 | 2012-10-11 | Generator set monitoring system based on PLC |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107165732A (en) * | 2017-07-19 | 2017-09-15 | 合肥康尔信电力系统有限公司 | Diesel generator set intelligent control system based on PLC |
| CN110735727A (en) * | 2019-10-14 | 2020-01-31 | 江西清华泰豪三波电机有限公司 | Control device and control method for emergency operation of diesel generator sets |
| CN113485201A (en) * | 2021-07-30 | 2021-10-08 | 王丹 | New energy automobile motor health detection control system |
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Patent Citations (5)
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107165732A (en) * | 2017-07-19 | 2017-09-15 | 合肥康尔信电力系统有限公司 | Diesel generator set intelligent control system based on PLC |
| CN107165732B (en) * | 2017-07-19 | 2020-04-28 | 合肥康尔信电力系统有限公司 | Intelligent control system of diesel generating set based on PLC |
| CN110735727A (en) * | 2019-10-14 | 2020-01-31 | 江西清华泰豪三波电机有限公司 | Control device and control method for emergency operation of diesel generator sets |
| CN110735727B (en) * | 2019-10-14 | 2022-03-15 | 江西清华泰豪三波电机有限公司 | Control device and control method for emergency operation of diesel generator set |
| CN113485201A (en) * | 2021-07-30 | 2021-10-08 | 王丹 | New energy automobile motor health detection control system |
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Application publication date: 20140416 |