CN211457031U - Automatic start-stop control system for generator set - Google Patents
Automatic start-stop control system for generator set Download PDFInfo
- Publication number
- CN211457031U CN211457031U CN202020499988.1U CN202020499988U CN211457031U CN 211457031 U CN211457031 U CN 211457031U CN 202020499988 U CN202020499988 U CN 202020499988U CN 211457031 U CN211457031 U CN 211457031U
- Authority
- CN
- China
- Prior art keywords
- generator
- unit
- power supply
- automatic start
- stop
- 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.)
- Active
Links
Images
Landscapes
- Control Of Eletrric Generators (AREA)
Abstract
The utility model discloses an automatic start-stop control system of a generator set, which is used for carrying out remote automatic start-stop and output control on the basis of a physical control system of an old-fashioned generator and comprises a PLC control unit, and a plurality of generators, an information acquisition unit, a power supply switching unit and a man-machine interaction unit which are respectively connected with the PLC control unit; the PLC control unit receives the working state related signals of the generators collected by the information collection unit and sends the working state related signals to the man-machine interaction unit for data display and/or audible and visual alarm, receives the control instruction of the man-machine interaction unit and the switching control signal of the power supply switching unit, and automatically controls the automatic start and stop, output voltage, current and frequency of each generator; the utility model discloses can realize the concurrency control of a plurality of generators to operating condition to every generator carries out accurate judgement, makes generating set output difference remain stable, realizes the timely early warning of proruption trouble and in time shuts down.
Description
Technical Field
The utility model relates to an automatic control field especially relates to an automatic control system that opens of opening of generating set.
Background
The old-fashioned generator is limited by the technical conditions at the time, the starting and stopping processes need to be controlled manually according to the operation process, a control system of the old-fashioned generator mostly adopts a physical button control device, and the environmental temperature of a generator set formed by a plurality of generators needs to be measured and considered in the operation process so as to correspond to different operation processes; in the concurrent control of a plurality of generators, the operating state of each generator cannot be judged, thereby causing larger difference of the whole output of the generator set and failing to monitor the current running condition of the generator in real time in the running process according to the output signal of each generator, in the event of a power outage in the external power source or the need for an emergency shutdown of a particular generator, the generator set output voltage, frequency, current and power may experience operational anomalies, the cost for judging the running state of the generators and automatically controlling the running state of the generators by the concurrent control of a plurality of generators is higher, and the method is not suitable for the old generators adopting a physical button control device, and the stable voltage regulation and frequency modulation of the whole generator set are very difficult on the old generator, the stability is not high, the early warning can not be timely realized when slight faults occur, and the shutdown can not be timely realized when serious faults occur.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a generating set automatic start-stop control system aiming at the defects of the prior art, which is used for carrying out remote automatic start-stop and output control on the basis of the physical control system of the old generator and comprises a PLC control unit and a plurality of generators, an information acquisition unit, a power supply switching unit and a man-machine interaction unit which are respectively connected with the PLC control unit; the PLC control unit receives the working state related signals of the generators collected by the information collection unit and sends the working state related signals to the man-machine interaction unit for data display and/or audible and visual alarm, receives the control instruction of the man-machine interaction unit and the switching control signal of the power supply switching unit, and automatically controls the automatic start and stop, output voltage, current and frequency of each generator.
Furthermore, the control output end of the PLC control unit is directly connected to the control button of each generator in parallel after being expanded through a relay, so that the control over the remote start-stop, the output voltage, the output current, the output frequency and the power of a plurality of generators is realized; and the signal input end and the analog input end of the PLC control unit are respectively connected with the fault signal output end and the analog signal output end of each generator through an I/0 input signal adapter plate and an analog signal voltage division plate.
Further, the information acquisition unit comprises a pressure sensor, a temperature sensor, a rotating speed sensor and a three-phase electric power sensor; the pressure sensor and the temperature sensor are arranged in each generator oil chamber and are respectively used for acquiring pressure and temperature information of generator oil; the rotating speed sensor and the three-phase electric power sensor are respectively arranged in the generator set mounting frame and at the output end of each generator and used for acquiring rotating speed information of the generator set and output voltage, current, frequency and power signals of each generator.
Furthermore, the human-computer interaction unit comprises an audible and visual alarm device and an HMI display screen.
Furthermore, the power supply switching unit comprises a dual-power supply switching switch and a standby power supply module which are connected in a bidirectional mode, one end of the dual-power supply switching switch is connected with the PLC control unit, and the other end of the dual-power supply switching switch is connected with an external power supply.
The utility model has the advantages that: the utility model can realize the concurrent control of a plurality of generators, can accurately judge the working state of each generator, respectively start and stop each generator of the generator set and control the output, and can monitor the operation condition of the current generator in real time in the operation process according to the output signal of each generator, so that the output difference of the generator set is kept stable; the functions of stable automatic start and stop, automatic voltage regulation, automatic frequency modulation, automatic switch switching, automatic stop and the like can be realized; the dependence on operators is greatly reduced, the timely early warning and the timely shutdown of emergencies and faults can be realized, and the automatic control cost of the old generator set is reduced.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Detailed Description
In order to clearly understand the technical features, objects, and effects of the present invention, embodiments of the present invention will be described with reference to the accompanying drawings.
The system for automatically starting and stopping the generator set, which is shown in fig. 1, is used for carrying out remote automatic starting and stopping and output control on the basis of a physical control system of an old-fashioned generator, and comprises a PLC control unit, and a plurality of generators, an information acquisition unit, a power supply switching unit and a man-machine interaction unit which are respectively connected with the PLC control unit; the PLC control unit receives the working state related signals of the generators collected by the information collection unit and sends the working state related signals to the man-machine interaction unit for data display and/or audible and visual alarm, receives the control instruction of the man-machine interaction unit and the switching control signal of the power supply switching unit, and automatically controls the automatic start and stop, output voltage, current and frequency of each generator.
The control output end of the PLC control unit is directly connected to the control button of each generator in parallel after being expanded through the relay to realize the remote start-stop, output voltage, current, frequency and power control of the plurality of generators; the signal input end and the analog input end of the PLC control unit are respectively connected with the fault signal output end and the analog signal output end of each generator through an I/0 input signal adapter plate and an analog signal voltage division plate, specifically, an output alarm lamp of each generator is connected with one I/0 input signal adapter plate in parallel, and is connected with the signal input end of the PLC after passing through the signal adapter plate; and part of the signals of the generator are output by the analog meter, and the part of the signals are connected to an analog input port of the PLC through an analog signal voltage division plate.
Due to the system butt joint mode, the PLC control unit reads the analog signal of the original generator control system through the analog quantity signal voltage dividing plate, reads the original signal output of the generator through the I/O signal input plate, and controls the physical button of the generator through the relay expansion plate.
The wiring mode ensures that the PLC control unit can completely obtain the control right of each generator, can accurately read the original state of each generator, ensures that the original manual control system of the generator can normally operate and is not influenced by the PLC control system.
The PLC control unit can judge whether the command is sent by a manual system or an automatic system after reading the original signal of each generator, so that the respective actions of manual and automatic modes are realized without being influenced, and a change-over switch can be installed outside and used for switching off the control output of the PLC control unit to realize complete manual control.
The information acquisition unit comprises a pressure sensor, a temperature sensor, a rotating speed sensor and a three-phase electric power sensor; the pressure sensor and the temperature sensor are arranged in each generator oil chamber and are respectively used for acquiring pressure and temperature information of generator oil; the rotating speed sensor is arranged in the generator set mounting frame and used for acquiring rotating speed information of the generator set; on the basis of upgrading of an original control system, a three-phase electric power sensor is installed at the output end of each generator. The sensor can acquire output voltage, frequency, current, power and power factor parameters of the generator; the three-phase electric power sensor is connected with the PLC and sends the acquired signals to the PLC control unit; the PLC control unit can judge the working state of each generator according to the collected signals and realize the automatic control of each generator in the generator set.
The human-computer interaction unit comprises an audible and visual alarm device and an HMI display screen, the HMI display screen is used for receiving and displaying the working state of each generator sent by the PLC control unit, then sending a control instruction on a display screen interface to the PLC control unit, and the PLC control unit automatically controls each generator according to the control instruction; and the sound-light alarm device is used for giving sound-light alarm prompt when the PLC control unit receives the generator acquisition signal in the abnormal working state.
The power supply switching unit comprises a dual-power supply switching switch and a standby power supply module which are connected in a bidirectional mode, one end of the dual-power supply switching switch is connected with the PLC control unit to send a switching control signal and provide a working power supply for the PLC control unit, and the other end of the dual-power supply switching switch is connected with an external power supply; when the external power supply is powered on, the external power supply charges the standby power supply module and supplies power to the PLC control unit, and when the external power supply is powered off, the standby power supply module supplies power to the PLC control unit so as to ensure that the whole system is not influenced by the power failure condition.
When the external power supply is powered off, the dual-power-supply changeover switch is switched to the standby power supply module to supply power, and meanwhile, the PLC control unit starts to execute the action of starting the generator; when the external power source recovers the power supply, the dual-power-source change-over switch is switched to the external power source to supply power and charge the standby power source module, and meanwhile, the PLC control unit executes the stop action of the generator.
The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (5)
1. An automatic start-stop control system of a generator set is used for carrying out remote automatic start-stop and output control on the basis of a physical control system of an old generator and is characterized by comprising a PLC control unit, and a plurality of generators, an information acquisition unit, a power supply switching unit and a man-machine interaction unit which are respectively connected with the PLC control unit; the PLC control unit receives the working state related signals of the generators collected by the information collection unit and sends the working state related signals to the man-machine interaction unit for data display and/or audible and visual alarm, receives the control instruction of the man-machine interaction unit and the switching control signal of the power supply switching unit, and automatically controls the automatic start and stop, output voltage, current and frequency of each generator.
2. The automatic start-stop control system of the generator set according to claim 1, wherein the control output end of the PLC control unit is extended through a relay and then directly connected to the control button of each generator in parallel to realize remote start-stop, output voltage, current, frequency and power control of the plurality of generators; and the signal input end and the analog input end of the PLC control unit are respectively connected with the fault signal output end and the analog signal output end of each generator through an I/0 input signal adapter plate and an analog signal voltage division plate.
3. The automatic start-stop control system of the generator set according to claim 1, wherein the information acquisition unit comprises a pressure sensor, a temperature sensor, a rotating speed sensor and a three-phase electric power sensor; the pressure sensor and the temperature sensor are arranged in each generator oil chamber and are respectively used for acquiring pressure and temperature information of generator oil; the rotating speed sensor and the three-phase electric power sensor are respectively arranged in the generator set mounting frame and at the output end of each generator and used for acquiring rotating speed information of the generator set and output voltage, current, frequency and power signals of each generator.
4. The automatic start-stop control system for the generator set according to claim 1, wherein the human-computer interaction unit comprises an audible and visual alarm device and an HMI display screen.
5. The automatic start-stop control system of a generator set according to claim 1, wherein the power supply switching unit comprises a dual power supply switch and a standby power supply module which are connected in a bidirectional mode, one end of the dual power supply switch is connected with the PLC control unit, and the other end of the dual power supply switch is connected with an external power supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020499988.1U CN211457031U (en) | 2020-04-08 | 2020-04-08 | Automatic start-stop control system for generator set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020499988.1U CN211457031U (en) | 2020-04-08 | 2020-04-08 | Automatic start-stop control system for generator set |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211457031U true CN211457031U (en) | 2020-09-08 |
Family
ID=72301437
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020499988.1U Active CN211457031U (en) | 2020-04-08 | 2020-04-08 | Automatic start-stop control system for generator set |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211457031U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111923853A (en) * | 2020-10-14 | 2020-11-13 | 南京金城机械有限公司 | Dual-power police tool system for police car and control method thereof |
-
2020
- 2020-04-08 CN CN202020499988.1U patent/CN211457031U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111923853A (en) * | 2020-10-14 | 2020-11-13 | 南京金城机械有限公司 | Dual-power police tool system for police car and control method thereof |
| CN111923853B (en) * | 2020-10-14 | 2020-12-29 | 南京金城机械有限公司 | Dual-power police tool system for police car and control method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202203095U (en) | Technical water supply control system of hydropower station unit | |
| CN211457031U (en) | Automatic start-stop control system for generator set | |
| CN108982098A (en) | Gearbox on-line checking testing stand and detection method | |
| CN101560906B (en) | Device and method for comprehensively controlling and protecting pump set of diesel engine | |
| CN211454344U (en) | Generator automatic control device based on PLC controller | |
| CN209265241U (en) | Intelligent terminal for Internet of things | |
| CN106523340B (en) | Frequency conversion air compressor pressure sensor disconnection fault processing system and method | |
| CN213088118U (en) | Intelligent control cabinet of diesel generator | |
| CN101650400A (en) | Testing equipment of generating set control screen | |
| CN205120924U (en) | Automatic change throttle motor detecting system | |
| CN211405905U (en) | Generator start-stop control device capable of automatically regulating voltage | |
| CN103855791A (en) | Generator intelligent control system | |
| CN215642383U (en) | Portable subway vehicle door troubleshooting device | |
| CN101995556A (en) | Remote fault detection and processing system of DC power supply screen | |
| CN114635760A (en) | Steam turbine barring control system and steam turbine barring equipment for nuclear power plant | |
| CN111289815B (en) | HMI-based portable high-voltage chain type APF module tester and HMI-based portable high-voltage chain type APF module testing method | |
| CN206299551U (en) | Frequency conversion air compressor pressure sensor disconnection fault processing system | |
| CN105510858A (en) | Inverter static bypass switch voltage monitoring card work performance test system and inverter static bypass switch voltage monitoring card work performance test method | |
| CN116754856A (en) | Movable shield machine component detection device | |
| CN214176992U (en) | Natural gas generating set grid-connected control system | |
| CN220290087U (en) | Comprehensive monitoring device for refrigerating and heating machine room | |
| CN218862744U (en) | Marine machine side control screen | |
| CN115792156B (en) | Control method and device for on-line monitoring of multi-parameter water quality | |
| CN201548624U (en) | Equipment used for testing control panel of generating set | |
| CN112162520B (en) | Method for prolonging service life of battery of robot axis data board card |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |