CN104967207A - Standby diesel generating set periodic test loop and control method therefor - Google Patents
Standby diesel generating set periodic test loop and control method therefor Download PDFInfo
- Publication number
- CN104967207A CN104967207A CN201510323841.0A CN201510323841A CN104967207A CN 104967207 A CN104967207 A CN 104967207A CN 201510323841 A CN201510323841 A CN 201510323841A CN 104967207 A CN104967207 A CN 104967207A
- Authority
- CN
- China
- Prior art keywords
- contactor
- generating set
- diesel generating
- diesel
- loop
- 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.)
- Granted
Links
Landscapes
- Tests Of Circuit Breakers, Generators, And Electric Motors (AREA)
Abstract
The invention discloses a standby diesel generating set periodic test loop, and the loop comprises a diesel generating set and a test load (200). The diesel generating set comprises a diesel generator (100), and the diesel generator (100) is connected with a bus (300) of a power distribution cabinet. The loop is characterized in that a connection line between the diesel generator (100) and the bus (300) of the power distribution cabinet is provided with a first contactor (101); the test load (200) is connected with the diesel generator (100) through a circuit breaker (400); a connection line between the circuit breaker (400) and the diesel generator (100) is provided with a second contactor (102); the first contactor (101) and the second contactor (102) are in a mutually locked state. The loop does not temporary wiring, is simple in maintenance operation, does not affect the working condition of emergency operation of a set, and verifies the reliability of a power supply loop while verifying the performance of the diesel generating set.
Description
Technical field
The invention belongs to technical field of electric device control, be specifically related to periodical test loop and the control method thereof of diesel generating set for subsequent use each other.
Background technology
400V SBO diesel generating set is in order to tackle one of vital power supply of this serious accident operating mode of station blackout in nuclear power station, in order to ensure the reliability of powering, have employed the operational mode of two diesel generating set a-worker-a-backups.The operating condition of tackling due to this system is a low probability accident conditions, so these two diesel generating sets are in hot stand-by duty for a long time, in order to ensure that diesel generating set can reliably drop into rapidly under accident conditions, for important load restoration is powered, regular performance test is required, and is normality.
Usually, the periodical test of diesel generating set often adopts the mode of nigration load and patch, but the diesel generating set that cannot realize like this in process of the test drops into emergency operating, reduces the reliability of diesel-electric set electric supply.
Summary of the invention
For the defect existed in prior art, the object of the present invention is to provide a kind of periodical test loop and the control method thereof that can realize diesel generating set checking diesel generating set performance for subsequent use each other without the need to patch, guarantee under emergent operating mode for important load is powered simultaneously.
For achieving the above object, the technical solution used in the present invention is: a kind of periodical test loop of diesel generating set, comprise diesel generating set and test load, described diesel generating set comprises diesel engine generator, diesel engine generator is connected with the bus of power distribution cabinet, connection line between diesel engine generator and the bus of power distribution cabinet is provided with the first contactor, test load is connected with diesel engine generator by circuit breaker, connection line between circuit breaker and diesel engine generator is provided with the second contactor, locking each other between the first contactor and the second contactor.
Further, the periodical test loop of a kind of diesel generating set as above, is provided with test run position normally opened contact and emergency start order normally-closed contact in the closed-loop path of described second contactor.
Further, the periodical test loop of a kind of diesel generating set as above, is provided with starting time delay in the closed-loop path of described first contactor; The normally-closed contact being provided with the first contactor in the normally-closed contact of the second contactor or the closed-loop path of the second contactor is provided with in the closed-loop path of the first contactor.
Further, the periodical test loop of a kind of diesel generating set as above, described diesel generating set is one or more sets, when diesel generating set for overlapping more, between the first contactor of different diesel generating set and locking each other between the second contactor.
Further, the periodical test loop of a kind of diesel generating set as above, diesel engine generator is connected with the first contactor and the second contactor respectively by breaker cabinet.
Further, the periodical test loop of a kind of diesel generating set as above, the connection line on the connection line between breaker cabinet and the first contactor and between breaker cabinet and the second contactor is provided with voltage relay.
Further, the periodical test loop of a kind of diesel generating set as above, described first contactor, the second contactor, voltage relay and circuit breaker are all arranged in power distribution cabinet.
Present invention also offers the control method in the periodical test loop of a kind of diesel generating set based on above-mentioned periodical test loop, comprise the following steps:
The running status selector switch of diesel generating set is placed in test position, close circuit breaker, triggers the instruction of starting diesel generating set to be tested;
The diesel engine generator of diesel generating set to be tested starts, and the second contactor closes, and the first contactor is opened, the load running of diesel generating set girdle tests.
Further, a kind of control method of periodical test loop of diesel generating set for subsequent use each other as above, in process of the test, when diesel generating set receives emergency start order, second contactor is opened, first contactor closes, and diesel generating set to be tested is power distribution cabinet bussed supply.
Beneficial effect of the present invention is: when adopting test loop provided by the present invention to carry out the performance test of diesel generating set, without the need to patch, attended operation is simple, because test load can be connected to the power distribution cabinet of diesel generating set, need be powered by its distribution cable during test, therefore in the simultaneous verification reliability of its current supply circuit of checking diesel generating set performance, and in the control logic of the contactor in loop, consider the operating mode of when in situ test operating mode " unit be in as then automatically transferred emergency operating pattern to when receiving emergency start order ", do not affect the emergency operating operating mode of unit.The enforcement of this test loop, decreases the impact of human intervention factor on diesel engine unit power supply reliability, improves the availability factor of diesel generating set, ensure its reliable power supply.
Accompanying drawing explanation
Fig. 1 is the schematic diagram in the periodical test loop of a kind of diesel generating set of the present invention;
Fig. 2 is the schematic diagram of the specific embodiment in the periodical test loop of a kind of diesel generating set of the present invention.
Embodiment
Below in conjunction with Figure of description and embodiment, the present invention is described in further detail.
Fig. 1 shows the schematic diagram in the periodical test loop of a kind of diesel generating set provided by the invention, this regular experimental loop includes diesel generating set and test load 200, described diesel generating set comprises diesel engine generator 100, diesel engine generator 100 is connected with the bus 200 of power distribution cabinet, connection line between the bus 300 of diesel engine generator 100 and power distribution cabinet is provided with the first contactor 101, test load 200 is connected with diesel engine generator 100 by circuit breaker 400, connection line between circuit breaker 400 and diesel engine generator 100 is provided with the second contactor 102, locking each other between first contactor 101 and the second contactor 102.
When adopting the above-mentioned periodical test loop provided in present embodiment to carry out the performance test of diesel generating set, circuit breaker 400 and the second contactor 102 close, after starting diesel generating set, diesel engine generator 100 provides power for test loop, due to the first contactor 101 and the second contactor 102 locking each other, both can not close simultaneously, and therefore now the first contactor 101 is in off-state, and diesel engine generator 100 motoring ring test load 200 runs; If need diesel generating set to provide stand-by power in process of the test, now control the first contactor 101 and close, the second contactor 102 disconnects, and diesel engine generator 200 is that the bus 300 of power distribution cabinet is powered, and drives the normal duty be connected with bus 300 to run.The setting of locking each other between the first contactor 101 and the second contactor 102, avoids test load 200 and normal duty superposes the problem causing diesel generating set to transship.
In order to realize the automation of test loop, in present embodiment, in the closed-loop path of the second contactor 102, be provided with test run position normally opened contact and emergency start order normally-closed contact.When carrying out testing experiment, the running status selector switch of diesel generating set is placed on test position by operator, and trigger the instruction that starts diesel generating set, test run position normally opened contact closes, the second contactor 102 closed communicating; If receive emergency starting order in process of the test, diesel generating set is needed to put into operation, now emergency start order normally-closed contact disconnects, second contactor 102 disconnects, thus the first contactor 101 closed communicating, the bus 300 that diesel generating set transfers to for power distribution cabinet is powered, and drives and normally accords with load operation.
In order to the locking each other realizing the first contactor 101 and the second contactor 102 is arranged, the normally-closed contact of the second contactor 102 can be set in the closed-loop path of the first contactor 101, or the normally-closed contact of the first contactor 101 is set in the closed-loop path of the second contactor 102, thus ensure that in the first contactor 101 and the second contactor 102 that one is closed, another must disconnect.
In present embodiment, starting time delay is also provided with in the closed-loop path of described first contactor 101, this is because when diesel engine generator 100 runs, the first contactor 101 and the second contactor 102 can be started simultaneously, by the setting of this starting time delay, ensure that when carrying out diesel generating set performance test, second contactor 102 can first be connected, now the first contactor 101 disconnects automatically, avoids the problem because the first contactor 101 is first connected, the second contactor 102 disconnection causes test failure.
In present embodiment, described diesel generating set can be a set of, also can be many covers (comprising two covers), when diesel generating set for overlapping more, between first contactor 101 of different diesel generating set and locking each other between the second contactor 102, thus avoid because personnel's misoperation makes two diesel generating set paired runnings.
In present embodiment; diesel engine generator 100 is generally connected with the first contactor 101 and the second contactor 102 respectively by breaker cabinet 103; by access breaker cabinet 103; make diesel engine generator 100 only just connect other circuit parts in real startup rear (voltage stabilization), other circuit part is played a protective role.
In addition, connection line on connection line between breaker cabinet 103 and the first contactor 101 and between breaker cabinet 103 and the second contactor 102 is generally also provided with voltage relay 104, voltage relay 104 plays the effect of induction diesel engine generator voltage, when the voltage of diesel engine generator 100 reaches required value, voltage relay 104 just can start the closed-loop path of the first contactor 101 or the second contactor 102.
In present embodiment, in actual use, in order to better realize the deployment to test loop, described first contactor 101, second contactor 102, voltage relay 104 and circuit breaker 400 part are all arranged in power distribution cabinet.
In actual use, two cover diesel generating sets generally all can be adopted to ensure emergency power supply during power-off, two cover diesel generating sets adopt the operational mode of a-worker-a-backup (for subsequent use each other).As shown in Figure 2, for a specific embodiment in the periodical test loop of a kind of diesel generating set provided by the invention, in this embodiment, diesel generating set is two covers, two covers diesel generating set for subsequent use is each other called the first generating set and the second generating set, as can be seen from Figure, first generating set comprises diesel engine generator 100A, connection line between the bus 300 of diesel engine generator 100A and power distribution cabinet is provided with the first contactor 101A, second generating set comprises diesel engine generator 100B, connection line between the bus 300 of diesel engine generator 100B and power distribution cabinet is provided with the first contactor 101B, test load 200 is connected with diesel engine generator 100A and 100B respectively by circuit breaker 400, connection line between circuit breaker 400 and diesel engine generator 100A is provided with the second contactor 102A, and the connection line between circuit breaker 400 and diesel engine generator 100B is provided with the second contactor 102B, between first contactor 101A and the second contactor 102A, between the first contactor 101B and the second contactor 102B, between the first contactor 101A and 101B and locking all each other between the second contactor 102A and 102B.Part in figure below dotted line all can be deployed in power distribution cabinet.
In present embodiment, due to different diesel generating set the second contactor between locking each other arrange, therefore ensure that this test loop only for the test of arbitrary diesel generating set.
Additionally provide a kind of control method of the periodical test loop based on above-mentioned diesel generating set in present embodiment, the method mainly comprises the following steps:
The running status selector switch of diesel generating set is placed in test position, close circuit breaker, triggers the instruction of starting diesel generating set to be tested;
The diesel engine generator of diesel generating set to be tested starts, and the second contactor closes, and the first contactor is opened, the load running of diesel generating set girdle tests.
In process of the test, when diesel generating set receives emergency start order, the second contactor is opened, and the first contactor closes, and diesel generating set to be tested is power distribution cabinet bussed supply.
By the above-mentioned regular experimental loop that provides in present embodiment and control method, can realize the regular performance test of diesel oil group without the need to patch, attended operation is simple, and does not affect the emergency operating operating mode of unit.In order to better understand the present invention, below for the second generating set shown in Fig. 2, in conjunction with the process of the second generating set being carried out to regularly experiment, the test loop that present embodiment provides is further elaborated.
(1) circuit breaker 400 closes by operator
In the present embodiment, circuit breaker 400, as switch, only just allows closed when carrying out diesel generating set performance test, open, thus ensure that test load can not be dropped into when this system drops into emergency operating in test loop when normal operation.
(2) the running status selector switch of the second generating set is placed on test position by operator, trigger the instruction that is started the second generating set, when the voltage of diesel engine generator 100B reaches required value, test run position normally opened contact is provided with in closed-loop path due to the second contactor 102B, now this closing of contact is connected, voltage relay 104 starts the closed-loop path of the second contactor 102B, although voltage relay 104 also can start the first contactor 101B closed-loop path of diesel generating set simultaneously, but owing to being provided with starting time delay in the first contactor 101B, therefore first the second contactor 102B can start, and the first contactor 101B and the second contactor 102B locking each other, after second contactor 102B starts, first starter 101B will close, now diesel generating set girdle tests load running, test.
(3) in process of the test, if diesel generating set receives automatic starting command and emergency starting order, emergency start order normally-closed contact in the closed-loop path of now the second contactor 102B can be opened, cut off the closed-loop path of the second contactor 203, second contactor 102B can disconnect, now the first starter 101B will close connection, diesel engine generator 100B transfers to for power distribution cabinet bus AR 300 powers, ensure that at the trial, as when receiving emergency starting order then circuit can be automatically converted to emergency operating pattern, ensure that the normal operation under accident conditions.
(4) at the end of testing experiment, operator sends a halt instruction to diesel generating set, voltage relay 204 decompression; discharge the closed-loop path of each contactor; each contactor is in open mode, and operator opens circuit breaker 500, and system returns initial condition.
Obviously, those skilled in the art can carry out various change and modification to the present invention and not depart from the spirit and scope of the present invention.Like this, if these amendments of the present invention and modification belong within the scope of the claims in the present invention and equivalent technology thereof, then the present invention is also intended to comprise these change and modification.
Claims (9)
1. the periodical test loop of a diesel generating set, comprise diesel generating set and test load (200), described diesel generating set comprises diesel engine generator (100), diesel engine generator is connected with the bus (300) of power distribution cabinet, it is characterized in that: the connection line between the bus (300) of diesel engine generator (100) and power distribution cabinet is provided with the first contactor (101), test load (200) is connected with diesel engine generator (100) by circuit breaker (400), connection line between circuit breaker (400) and diesel engine generator (100) is provided with the second contactor (102), locking each other between first contactor (101) and the second contactor (102).
2. the periodical test loop of a kind of diesel generating set according to claim 1, is characterized in that: be provided with test run position normally opened contact and emergency start order normally-closed contact in the closed-loop path of described second contactor (102).
3. the periodical test loop of a kind of diesel generating set according to claim 1, is characterized in that: be provided with starting time delay in the closed-loop path of described first contactor (101); The normally-closed contact being provided with the first contactor (101) in the normally-closed contact of the second contactor (102) or the closed-loop path of the second contactor (102) is provided with in the closed-loop path of the first contactor (101).
4. according to the periodical test loop of a kind of diesel generating set one of claims 1 to 3 Suo Shu, it is characterized in that: described diesel generating set is one or more sets, when diesel generating set for overlapping more, between first contactor (101) of different diesel generating set and locking each other between the second contactor (102).
5. the periodical test loop of a kind of diesel generating set according to claim 4, is characterized in that: diesel engine generator (100) is connected with the first contactor (101) and the second contactor (102) respectively by breaker cabinet (103).
6. the periodical test loop of a kind of diesel generating set according to claim 5, is characterized in that: the connection line on the connection line between breaker cabinet (103) and the first contactor (101) and between breaker cabinet (103) and the second contactor (102) is provided with voltage relay (104).
7. the periodical test loop of a kind of diesel generating set according to claim 6, is characterized in that: described first contactor (101), the second contactor (102), voltage relay (104) and circuit breaker (400) are all arranged in power distribution cabinet.
8., based on the control method in the periodical test loop of a kind of diesel generating set in periodical test loop according to claim 1, comprise the following steps:
The running status selector switch of diesel generating set is placed in test position, close circuit breaker, triggers the instruction of starting diesel generating set to be tested;
The diesel engine generator of diesel generating set to be tested starts, and the second contactor closes, and the first contactor is opened, the load running of diesel generating set girdle tests.
9. the control method in the periodical test loop of a kind of diesel generating set for subsequent use each other according to claim 8, it is characterized in that: in process of the test, when diesel generating set receives emergency start order, second contactor is opened, first contactor closes, and diesel generating set to be tested is power distribution cabinet bussed supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510323841.0A CN104967207B (en) | 2015-06-12 | 2015-06-12 | The routine test circuit of the diesel generating set of mutual backup and its control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510323841.0A CN104967207B (en) | 2015-06-12 | 2015-06-12 | The routine test circuit of the diesel generating set of mutual backup and its control method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104967207A true CN104967207A (en) | 2015-10-07 |
| CN104967207B CN104967207B (en) | 2019-04-23 |
Family
ID=54221198
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510323841.0A Active CN104967207B (en) | 2015-06-12 | 2015-06-12 | The routine test circuit of the diesel generating set of mutual backup and its control method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104967207B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108649568A (en) * | 2018-05-28 | 2018-10-12 | 南京南瑞继保电气有限公司 | A kind of off-network type micro-grid system and control method |
| CN109061464A (en) * | 2018-05-08 | 2018-12-21 | 中广核研究院有限公司 | A kind of the test locked loop and method of nuclear power station diesel emergency generating set |
| CN109494869A (en) * | 2018-11-29 | 2019-03-19 | 中广核研究院有限公司 | A kind of atomic-powered ship electric system |
| CN115263571A (en) * | 2022-06-14 | 2022-11-01 | 华能秦煤瑞金发电有限责任公司 | Diesel generating set maintenance system and use method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202330655U (en) * | 2011-11-17 | 2012-07-11 | 福建永强力加动力设备有限公司 | Novel load experimental device for diesel generator set |
| CN202583422U (en) * | 2012-04-09 | 2012-12-05 | 中科华核电技术研究院有限公司 | Nuclear power plant emergency diesel generator set on-line verification device |
| CN103441567A (en) * | 2013-08-02 | 2013-12-11 | 中国核电工程有限公司 | Emergency electrical power supply system and power supply method related to nuclear power station passive system |
| CN203607862U (en) * | 2013-10-25 | 2014-05-21 | 伟能机电设备(深圳)有限公司 | A diesel generator parallel connection control system |
-
2015
- 2015-06-12 CN CN201510323841.0A patent/CN104967207B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202330655U (en) * | 2011-11-17 | 2012-07-11 | 福建永强力加动力设备有限公司 | Novel load experimental device for diesel generator set |
| CN202583422U (en) * | 2012-04-09 | 2012-12-05 | 中科华核电技术研究院有限公司 | Nuclear power plant emergency diesel generator set on-line verification device |
| CN103441567A (en) * | 2013-08-02 | 2013-12-11 | 中国核电工程有限公司 | Emergency electrical power supply system and power supply method related to nuclear power station passive system |
| CN203607862U (en) * | 2013-10-25 | 2014-05-21 | 伟能机电设备(深圳)有限公司 | A diesel generator parallel connection control system |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109061464A (en) * | 2018-05-08 | 2018-12-21 | 中广核研究院有限公司 | A kind of the test locked loop and method of nuclear power station diesel emergency generating set |
| CN108649568A (en) * | 2018-05-28 | 2018-10-12 | 南京南瑞继保电气有限公司 | A kind of off-network type micro-grid system and control method |
| CN108649568B (en) * | 2018-05-28 | 2022-02-18 | 南京南瑞继保电气有限公司 | Off-grid micro-grid system and control method |
| CN109494869A (en) * | 2018-11-29 | 2019-03-19 | 中广核研究院有限公司 | A kind of atomic-powered ship electric system |
| CN115263571A (en) * | 2022-06-14 | 2022-11-01 | 华能秦煤瑞金发电有限责任公司 | Diesel generating set maintenance system and use method thereof |
| CN115263571B (en) * | 2022-06-14 | 2024-01-09 | 华能秦煤瑞金发电有限责任公司 | Maintenance system for diesel generator set and use method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104967207B (en) | 2019-04-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104967207A (en) | Standby diesel generating set periodic test loop and control method therefor | |
| CN108958142B (en) | It is a kind of to disconnect control device for satellite test and the electric connector of transmitting | |
| CN204481568U (en) | A kind of power plant is standby throws protective device | |
| CN104917289A (en) | Automatic switching method for emergency power supply and two-way working power supplies of diesel generator | |
| CN104052148A (en) | Automatic switching and automatic recovery method and device suitable for diesel generator | |
| CN105334417A (en) | Portable spare power automatic switching check device | |
| CN103117592A (en) | 220kV spare power automatic switching system and judgment method for bus tie spare power automatic switching mode of spare power automatic switching device | |
| CN204290804U (en) | Frequency conversion control circuit plate | |
| CN113395017B (en) | Pumped-storage system, control method and storage medium | |
| CN104237714B (en) | Overvoltage integrated monitoring fault diagnosing device and method for transformer substation | |
| CN104175911B (en) | A kind of network control method of high voltage bus Qb | |
| CN111404259B (en) | Security section power supply system of generator set and switching method thereof | |
| US9969341B2 (en) | Assistance device and method for a power generation system of an aircraft | |
| CN105270181A (en) | Intermediate relay control device, and control method thereof, and high-voltage power-down control method | |
| CN205207842U (en) | Valves the bypass switch control circuit optimizes structure | |
| CN110970876A (en) | Feeder automation fault isolation method and device | |
| CN106340954A (en) | Method for identifying line breaking of power supply line and switching to standby power supply | |
| CN103227505B (en) | Large Gas-Steam Combined Cycle circulating generation unit security personnel's section automatic interlock control method and device | |
| CN104505823B (en) | Stop repair method electric power wink and stop in wink to select reclosing circuit | |
| CN104184206A (en) | Accident security power supply circuit and switch method thereof | |
| CN110195821B (en) | Hydraulic substation and electromagnetic valve control device | |
| CN110165772B (en) | Robot chassis electrical system, chassis and robot | |
| CN103545923B (en) | A kind of guard method for repair apparatus | |
| CN105337404A (en) | Incoming line backup power automatic switching control method, device and system for transformer substation | |
| CN105429141A (en) | Control method and system for substation bus from independent operation to parallel operation |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |