CN208401623U - A kind of power plant's emergency diesel engine unit logic control system - Google Patents
A kind of power plant's emergency diesel engine unit logic control system Download PDFInfo
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- CN208401623U CN208401623U CN201821224003.3U CN201821224003U CN208401623U CN 208401623 U CN208401623 U CN 208401623U CN 201821224003 U CN201821224003 U CN 201821224003U CN 208401623 U CN208401623 U CN 208401623U
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Abstract
The utility model relates to a kind of power plant's emergency diesel engine unit logic control systems, the system is mounted in a control cabinet, control cabinet can arrange with diesel engine unit integral type or independently be arranged in the control room of diesel engine unit that the system includes logic controller PLC and controller of diesel generator set；It is electrically connected between logic controller PLC and controller of diesel generator set, alternating current monitor, relay, indicator light, button, connecting terminal is also equipped in control cabinet；The voltage transformer of alternating current monitor connection external system；Indicator light is used to indicate circuit-breaker status and system mode；Button is for manually controlling circuit-breaker switching on-off；Relay is used for voltage signal switching control；Logic controller PLC is connected with alternating current monitor by connecting terminal.The utility model, which provides, can be achieved the unattended of diesel generating set, and system can by user flexibility be configured, and meet complicated and diversified logic control requirement comprehensively, have scalability again while meeting loading demand.
Description
Technical field
The utility model relates to a kind of control systems, and in particular to a kind of power plant's emergency diesel engine unit logic control system
System.
Background technique
Emergency power supply be avoid causing when full factory's forced outage unit out of control, damage equipment, influence power plant for a long time cannot be extensive
The power supply of multiple power supply and setting powered to accident protective load.
When power plants generating electricity unit disorderly closedown, and at this time power grid also failure when, unit station service supply subsidiary engine can lose
Power supply and stop transport, thus cause generator's motor shaft bending, boiler tube bursting, turbine shaft deformation etc. accidents.In order to guarantee that unit exists
It being capable of safe shutdown under above situation, it is desirable that setting emergency power supply can start under above-mentioned fault condition to shut down must immediately
The subsidiary engine power supply wanted, to guarantee unit safety.
Utility model content
In view of the above-mentioned problems, the main purpose of the utility model is to provide a kind of achievable diesel generating set nobody
On duty, system can by user flexibility be configured, and met complicated and diversified logic control requirement comprehensively, met loading demand
Simultaneously again with power plant's emergency diesel engine unit logic control system of scalability.
The utility model is to solve above-mentioned technical problem by following technical proposals: a kind of power plant's emergency diesel engine
Group logic control system, power plant's emergency diesel engine unit logic control system are mounted in a control cabinet, and control cabinet can
It arranges with diesel engine unit integral type or is independently arranged in the control room of diesel engine unit.
Power plant's emergency diesel engine unit logic control system includes logic controller PLC and diesel-generator set control
Device；It is electrically connected between logic controller PLC and controller of diesel generator set.
Alternating current monitor, relay, indicator light, button, connecting terminal are also equipped in control cabinet.
The voltage transformer of alternating current monitor connection external system；Indicator light is used to indicate circuit-breaker status and system shape
State；Button is for manually controlling circuit-breaker switching on-off；Relay is used for voltage signal switching control；Logic controller PLC and city
Electric monitor is connected by connecting terminal.
In specific embodiment of the utility model, the logic controller PLC is patrolled according to input signal establishment operation
Volume, output control signal controls each switch and controller of diesel generator set, and controller of diesel generator set controls diesel oil hair
The simultaneous interconnecting of electric Unit Commitment and diesel generating set and power plant.
In specific embodiment of the utility model, the controller of diesel generator set connects diesel generating set sheet
Intracorporal sensor, current transformer monitor unit parameters in real time, complete unit monitoring protection warning function.
In specific embodiment of the utility model, in the controller of diesel generator set connection diesel generating set
Starting control loop, control unit starting motor and oil circuit valve, realize the starting operation of diesel engine unit and shut down.
In specific embodiment of the utility model, in the controller of diesel generator set connection diesel generating set
Governor and regulator board the frequency and voltage of unit are controlled by speed regulation and Regulation Control, realize simultaneous interconnecting function.
The positive effect of the utility model is: power plant's emergency diesel engine unit logic control provided by the utility model
System processed, it can be achieved that diesel generating set it is unattended, system can by user flexibility be configured, and be met comprehensively complicated more
The logic control requirement of sample, has scalability while meeting loading demand again.
System can by user flexibility be configured, and meet complicated and diversified power plant security personnel emergency flight control requirement comprehensively, can
To control the starting and braking of generating set by different modes, the major parameter of engine and generator is monitored, in structure
Upper very simple is compact, and function is very powerful, and operation is very easy, and cost performance is high, is power plant security personnel emergency section backup diesel
The ideal solution of generating set.
Detailed description of the invention
Fig. 1 is the block diagram of the overall structure diagram of the utility model.
Specific embodiment
The utility model preferred embodiment is provided, with reference to the accompanying drawing the technical solution of the utility model is described in detail.
Fig. 1 is the block diagram of the overall structure diagram of the utility model, as shown in Figure 1, power plant provided by the utility model
Emergency diesel engine unit logic control system is mounted in a control cabinet, control cabinet can with diesel engine unit integral type arrange or solely
It is vertical to be arranged in the control room of diesel engine unit.
Power plant's emergency diesel engine unit logic control system provided by the utility model includes logic control PLC and diesel oil hair
Motor group controller；It is electrically connected between logic control PLC and controller of diesel generator set.
Alternating current monitor, relay, indicator light, button, connecting terminal are also equipped in control cabinet.
The voltage transformer (PT) of alternating current monitor connection external system；Indicator light is used to indicate circuit-breaker status and system
State；Button is for manually controlling circuit-breaker switching on-off；Relay is used for voltage signal switching control；Logic control PLC and city
Electric monitor is connected by connecting terminal.
Logic controller PLC works out operation logic according to input signal, and output control signal controls each switch and diesel oil
Generator set controller, controller of diesel generator set control the same of diesel generating set start and stop and diesel generating set and power plant
Phase is grid-connected.
The intrinsic sensor of controller of diesel generator set connection diesel generating set, electric current in the utility model is mutual
Sensor monitors unit parameters in real time, completes unit monitoring protection warning function.
The starting control loop in controller of diesel generator set connection diesel generating set in the utility model, control
Unit starting motor and oil circuit valve are realized the starting operation of diesel engine unit and are shut down.
The governor and regulator board in controller of diesel generator set connection diesel generating set in the utility model, leads to
Speed regulation and Regulation Control are crossed, the frequency and voltage of unit are controlled, realizes simultaneous interconnecting function.
As shown in Figure 1, PTIA, PTIB, PTIIA, PTIIB, PT1, PT2, PT0 of alternating current monitor connection external system,
This signal is connected to alternating current monitor through connecting terminal；A certain PT power loss or it is electric when, alternating current monitor issue signal, be connected to
The input point of PLC.
Indicator light is used to indicate circuit-breaker status and system mode, breaker K0, K1 of external system, K2, K3, K4, K5,
The opening and closing state feedback signal of K6, K7, K8, K9, K10, S1, S2 access indicator light through connecting terminal, are then connected to the defeated of PLC
Access point.System mode output signal: such as failure, handover success, power successfully, grid-connected pass signal is by PLC and diesel generation
Generator set controller output, is connected to indicator light.Circuit-breaker status and system mode are shown by the light on and off of indicator light.
Button controls signal for manually controlling circuit-breaker switching on-off, the manual divide-shut brake of K0, K1, K2, K3, K4, K5, K6
It is connected to the input point of PLC by button, is picked out by the output point of PLC.
Relay is used for 4 same period point voltage signal switching controls, since there are tetra- same period points of K3, K4, K5, K6 at this place,
Its same period point side is common diesel generating set outgoing line side voltage signal, and the other side respectively corresponds 4 voltage signals, therefore
4 voltage signals must first pass through relay control switching.Therefore same period point signal switching command need to be issued by PLC, control is corresponding
Relay division, realize signal switching.
Equipped with I/O points CPU module abundant, 1 Ethernet of CPU module Ontology integration connects PLC in the utility model
Mouth and 1 RS485 interface.Expansible communication port, digital quantity channel, analog quantity channel.It can be used programming configuration software to PLC
Programming.
The signal of the input point access alternating current monitor of PLC；Breaker K0, K1 of external system, K2, K3, K4, K5, K6,
The opening and closing state feedback signal of K7, K8, K9, K10, S1, S2；The Unit Commitment control signal of controller of diesel generator set,
Same period point breaker energization control signal；The hand push button divide-shut brake of K0, K1, K2, K3, K4, K5, K6 control signal.
The output point of PLC picks out the switching signal of 4 same period point voltage；Breaker K0, K1 of external system, K2, K3,
The divide-shut brake of K4, K5, K6 control signal；System mode output signal: such as failure, handover success, power successfully, grid-connected successfully believe
Number.
PLC realizes the variation according to input signal by inside programming according to power plant's limp-home logic, changes output
Signal realizes that control requires.
This system is directed to power plant's emergency system logic operation feature, realizes according to power plant's emergency system logic to emergency diesel-oil
Start and stop, the simultaneous interconnecting control of generating set, realize and control the divide-shut brake that system respectively switchs, and answer by various different operating condition completions
Anxious diesel generating set emergency service function.System realize the switching of security personnel's section working power, diesel generating set to certain section or
The application of the various different operating conditions such as all security personnel's section power supplies, the grid-connected switching in city power recovery, system recovery standby emergency mode.
Power plant's emergency diesel engine unit logic control system provided by the utility model is mounted in a control cabinet, control
Case can be arranged with unit integral type, can also be independently arranged in control room, compact-sized, flexible arrangement.This system is directed to power plant
Emergency system logic operation feature is realized to the start and stop of diesel emergency generating set, the same period simultaneously according to power plant's emergency system logic
Network control system is realized and is controlled the divide-shut brake that system respectively switchs, and is completed diesel emergency generating set emergency by various different operating conditions and is supplied
Electricity Functional, system realizes the switching of security personnel's section working power, diesel generating set is powered to certain section or all security personnel's sections, alternating current is extensive
The switching of redoubling net, system restore the application of the various different operating conditions such as standby emergency mode.
The utility model is constituted jointly by PLC logic controller and controller of diesel generator set, and power plant is applied to
Security personnel meet an urgent need section used in standby diesel-generator unit.System can by user flexibility be configured, and be met comprehensively complicated more
The power plant security personnel emergency flight control requirement of sample, can control the starting and braking of generating set, monitoring is started by different modes
The major parameter of machine and generator also has intelligent remote " three is distant " in addition to basic generator set control defencive function
Monitoring function and good versatility.Using world's advanced technology, very simple is compact in structure, and function is very powerful, behaviour
Make very convenient, cost performance is high, is the ideal solution of power plant security personnel emergency section standby diesel-generator unit.
Power plant's its operation logic of emergency diesel engine unit has specific and complicated requirement, and corresponding different operating condition executes not
Same movement, rather than just control diesel engine unit itself.This system is patrolled by the analysis to power plant's emergency logic by PLC
The system that controller and controller of diesel generator set constitute jointly is collected, realizes the control to the entire emergency system of power plant, without
The only control of diesel generating set.System realizes the switching of security personnel's section working power, diesel generating set to certain section or institute
There is the application of the various different operating conditions such as the power supply of security personnel's section, the grid-connected switching in city power recovery, system recovery standby emergency mode, guarantees system
System safe and reliable operation.
The basic principles and main features of the present invention and the advantages of the present invention have been shown and described above.Current row
The technical staff of industry is described in above embodiments and description it should be appreciated that the present utility model is not limited to the above embodiments
Only illustrate the principles of the present invention, on the premise of not departing from the spirit and scope of the utility model, the utility model is also
It will have various changes and improvements, these various changes and improvements fall within the scope of the claimed invention, the utility model
Claimed range is defined by the appending claims and its equivalent thereof.
Claims (5)
1. a kind of power plant's emergency diesel engine unit logic control system, it is characterised in that: power plant's emergency diesel engine unit is patrolled
It collects control system to be mounted in a control cabinet, diesel engine unit can be arranged with diesel engine unit integral type or be independently arranged in control cabinet
Control room in,
Power plant's emergency diesel engine unit logic control system includes logic controller PLC and controller of diesel generator set；
It is electrically connected between logic controller PLC and controller of diesel generator set,
Alternating current monitor, relay, indicator light, button, connecting terminal are also equipped in control cabinet；
The voltage transformer of alternating current monitor connection external system；Indicator light is used to indicate circuit-breaker status and system mode；It presses
Button is for manually controlling circuit-breaker switching on-off；Relay is used for voltage signal switching control；Logic controller PLC and alternating current monitoring
Device is connected by connecting terminal.
2. power plant's emergency diesel engine unit logic control system according to claim 1, it is characterised in that: the logic control
Device PLC processed works out operation logic according to input signal, and output control signal controls each switch and controller of diesel generator set,
Controller of diesel generator set controls the simultaneous interconnecting of diesel generating set start and stop and diesel generating set and power plant.
3. power plant's emergency diesel engine unit logic control system according to claim 1, it is characterised in that: the diesel oil hair
Motor group controller connects the intrinsic sensor of diesel generating set, current transformer, monitors unit parameters in real time, complete
Protection warning function is monitored at unit.
4. power plant's emergency diesel engine unit logic control system according to claim 1, it is characterised in that: the diesel oil hair
Motor group controller connects the starting control loop in diesel generating set, controls unit starting motor and oil circuit valve, realizes
The starting of diesel engine unit runs and shuts down.
5. power plant's emergency diesel engine unit logic control system according to claim 1, it is characterised in that: the diesel oil hair
Motor group controller connects the governor and regulator board in diesel generating set, by speed regulation and Regulation Control, controls unit
Frequency and voltage realize simultaneous interconnecting function.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821224003.3U CN208401623U (en) | 2018-07-31 | 2018-07-31 | A kind of power plant's emergency diesel engine unit logic control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821224003.3U CN208401623U (en) | 2018-07-31 | 2018-07-31 | A kind of power plant's emergency diesel engine unit logic control system |
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| Publication Number | Publication Date |
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| CN208401623U true CN208401623U (en) | 2019-01-18 |
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| CN201821224003.3U Active CN208401623U (en) | 2018-07-31 | 2018-07-31 | A kind of power plant's emergency diesel engine unit logic control system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110259588A (en) * | 2019-07-24 | 2019-09-20 | 福州德塔电源技术有限公司 | A kind of generating set integrated control device |
| 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 |
| CN113489137A (en) * | 2021-06-18 | 2021-10-08 | 广西玉柴机器股份有限公司 | Self-starting switch control method of diesel power generation power assembly |
-
2018
- 2018-07-31 CN CN201821224003.3U patent/CN208401623U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110259588A (en) * | 2019-07-24 | 2019-09-20 | 福州德塔电源技术有限公司 | A kind of generating set integrated control device |
| 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 |
| CN113489137A (en) * | 2021-06-18 | 2021-10-08 | 广西玉柴机器股份有限公司 | Self-starting switch control method of diesel power generation power assembly |
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