CN214124936U - Diesel generator security power supply system - Google Patents
Diesel generator security power supply system Download PDFInfo
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- CN214124936U CN214124936U CN202023207793.4U CN202023207793U CN214124936U CN 214124936 U CN214124936 U CN 214124936U CN 202023207793 U CN202023207793 U CN 202023207793U CN 214124936 U CN214124936 U CN 214124936U
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- bus
- security section
- security
- diesel engine
- power supply
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/30—Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02B90/20—Smart grids as enabling technology in buildings sector
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
- Y04S20/12—Energy storage units, uninterruptible power supply [UPS] systems or standby or emergency generators, e.g. in the last power distribution stages
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
- Y04S20/20—End-user application control systems
- Y04S20/248—UPS systems or standby or emergency generators
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- Stand-By Power Supply Arrangements (AREA)
- Supply And Distribution Of Alternating Current (AREA)
Abstract
The utility model discloses a diesel generator security power supply system, which is used for timely starting and carrying when the commercial power is lost, and ensuring necessary power supply load, and mainly comprises a diesel generator set, a first security section bus and a second security section bus which are relatively independently arranged, wherein the inlet ends of the first security section bus and the second security section bus are respectively provided with corresponding working power supplies through a first inlet circuit breaker and a second inlet circuit breaker, and a bus bridge is arranged between the two security section buses through a bus coupler circuit breaker; the diesel generator set is connected with a diesel engine bus through a generator breaker, the diesel engine bus is respectively connected with a first security section bus and a second security section bus through a power line provided with a diesel engine feeder breaker, and a first disconnecting switch and a second disconnecting switch are respectively arranged on connecting lines of the first security section bus and the second security section bus with the diesel engine bus; it has the characteristics of simplifying system wiring, saving investment and the like.
Description
Technical Field
The utility model relates to a power supply technical field, concretely relates to diesel generator emergency power supply system.
Background
The security power supply of the large-scale generating set consists of a security diesel generating set and a security power distribution section, the wiring of the security section usually adopts a wiring scheme of two sections of buses, each section of bus of the scheme needs two paths of normal power incoming lines and one path of diesel incoming line, each section needs three incoming line circuit breakers, the diesel bus needs two feeder circuit breakers, the investment is high, and the space of a power distribution room needs to be large.
Disclosure of Invention
The to-be-solved technical problem of the utility model lies in, to the above-mentioned defect of prior art, can also simplify electrical power generating system and simplify the wiring when providing a assurance security and reliability, the diesel generator security electrical power generating system who saves the investment.
The utility model aims at completing the technical scheme that a diesel generator security protection power supply system is used for being started and carried in time when commercial power is lost, ensuring necessary power supply load, mainly comprising a diesel generator set and a first security section bus and a second security section bus which are relatively independently arranged, wherein the inlet ends of the first security section bus and the second security section bus are respectively provided with a corresponding working power supply through a first inlet wire breaker and a second inlet wire breaker, and a bus bridge is arranged between the two security section buses through a bus connection breaker; the diesel generating set passes through generator circuit breaker and is connected with the diesel engine generating line, be connected with first security section generating line and second security section generating line respectively through the power line that is provided with diesel engine feeder circuit breaker on the diesel engine generating line, just be provided with first isolator and the second isolator of opening on the connecting line of first security section generating line and second security section generating line and diesel engine generating line respectively.
Furthermore, voltage transformers are arranged on the first security section bus, the second security section bus and connecting lines between the two security section buses and the working power supply, and the voltage transformers are arranged on corresponding lines through fuses and isolation plugs.
Further, a standby power line is further arranged on the diesel engine bus, and a diesel engine feeder circuit breaker is arranged on the standby power line.
Further, still include the control system who is used for controlling each circuit breaker and isolator on-off state, control system mainly includes PLC controller and DCS remote control module.
The utility model has the advantages of: the utility model discloses simple structure can also simplify electrical power generating system when guaranteeing security and reliability and simplify the wiring, saves the investment, and normal power circuit breaker reduces to 3 by 4, and security personnel diesel engine generating line feeder circuit breaker reduces to 1 by 2 to reduce cost saves space.
Drawings
Fig. 1 is a wiring diagram of the security power supply system of the diesel generator of the present invention.
Detailed Description
To make the objects, technical solutions and advantages of the present invention more clearly understood by those skilled in the art, the present invention will be further described with reference to the accompanying drawings and examples.
In the description of the present invention, it should be understood that the directions or positional relationships indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "lateral", "vertical", and the like are the directions or positional relationships shown in the drawings, and are only for convenience of description of the present invention, and do not indicate or imply that the device or element referred to must have a specific direction, and therefore, should not be construed as limiting the present invention.
As shown in fig. 1, the utility model discloses a diesel generator emergency power supply system for in time start and carry when the commercial power loses power, guarantee necessary power supply load, mainly include diesel generator set 1 and the relatively independent first security section generating line 2 and the second security section generating line 3 that set up, and be provided with corresponding working power supply through first inlet wire circuit breaker QF1 and second inlet wire circuit breaker QF2 respectively on the inlet wire end of first security section generating line 2 and second security section generating line 3, be provided with bus-bar bridge 4 through bus-coupler circuit breaker QF3 between two security section generating lines; diesel generating set 1 passes through generator circuit breaker GCB and is connected with diesel engine generating line 5, the power line through being provided with diesel engine feeder circuit breaker QF4 on the diesel engine generating line 5 is connected with first security section generating line 2 and second security section generating line 3 respectively, just be provided with first isolator QL1 and second isolator QL2 on the connecting line of first security section generating line 2 and second security section generating line 3 and diesel engine generating line 5 respectively, diesel engine generating line 5 only need set up a feeder circuit breaker, can be to the power supply of two sections security section generating lines.
Referring to fig. 1, voltage transformers are arranged on the first security section bus 2, the second security section bus 3 and connecting lines between the two security section buses and a working power supply, and the voltage transformers are arranged on corresponding lines through fuses and isolation plugs. The diesel engine bus 5 is also provided with a standby power line, and the standby power line is provided with a diesel engine feeder circuit breaker. In addition, diesel generator emergency power supply system still includes the control system who is used for controlling each circuit breaker and isolator on-off state, control system mainly includes PLC controller and DCS remote control module.
The working mode is as follows:
the wiring is arranged in a local PLC and can be controlled by a remote DCS, and the specific description is as follows:
a) under the normal working state, two mains supplies supply power simultaneously, two incoming lines are switched on, the bus coupler is switched off, and two load switches (QL1/QL2) on the side of the diesel engine are in a switching off state; and can accept DCS instruction, will control the incoming line switch to separate brake by PLC, then close the bus tie, change into the working mode of single incoming line + bus tie, in order to switch over the working power supply, otherwise can also.
b) If the system is in a normal working state, when one of the mains supplies is out of power, the PLC controls the inlet switch to be switched off, then the bus coupler switch is switched on, and the two load switches (QL1/QL2) on the side of the diesel engine are in a switching-off state; when the mains supply is recovered, the DCS sends a command of resetting to normal to the bus coupler, the PLC bus coupler switch, the closing line switch and the two load switches (QL1/QL2) on the diesel engine side are in a brake-off state.
c) If the two mains supplies are all power-off, the two incoming lines and the bus coupler switch are under-voltage and tripped, the PLC simultaneously switches on the two load switches (QL1/QL2) and sends a starting signal (passive holding signal) to the diesel engine, and the GCB is closed after the diesel engine is started to supply power to the security sections on the two sides; when one of the two paths of mains supply is recovered, the PLC receives a DCS reset signal and cancels a starting and maintaining instruction for the diesel engine side. And the diesel engine detects a voltage signal at the commercial power side, and sends a commercial power inlet wire closing permission signal to the PLC after the diesel engine is adjusted synchronously. The PLC controls the incoming line of the commercial power to be switched on, and after the switching-on is successful, the side load switch of the diesel engine is switched off. The diesel engine automatically exits. And recovering the normal power supply working mode.
The utility model discloses simple structure can also simplify electrical power generating system when guaranteeing security and reliability and simplify the wiring, saves the investment, and normal power circuit breaker reduces to 3 by 4, and security personnel diesel engine generating line feeder circuit breaker reduces to 1 by 2 to reduce cost saves space.
The specific embodiments described herein are merely illustrative of the principles of the present invention and its efficacy, and are not intended to limit the invention. Modifications and variations can be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the present invention. Therefore, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical idea of the present invention shall be covered by the claims of the present invention.
Claims (4)
1. A diesel generator security power supply system is used for timely starting and carrying when commercial power is lost, and necessary power supply load is guaranteed, and is characterized in that: the system mainly comprises a diesel generating set, a first security section bus and a second security section bus which are relatively independently arranged, wherein corresponding working power supplies are respectively arranged on the wire inlet ends of the first security section bus and the second security section bus through a first wire inlet breaker and a second wire inlet breaker, and a bus bridge is arranged between the two security section buses through a bus coupler breaker; the diesel generating set passes through generator circuit breaker and is connected with the diesel engine generating line, be connected with first security section generating line and second security section generating line respectively through the power line that is provided with diesel engine feeder circuit breaker on the diesel engine generating line, just be provided with first isolator and the second isolator of opening on the connecting line of first security section generating line and second security section generating line and diesel engine generating line respectively.
2. The diesel generator emergency power supply system according to claim 1, wherein: and voltage transformers are arranged on the first security section bus, the second security section bus and connecting lines between the two security section buses and the working power supply, and the voltage transformers are arranged on corresponding lines through fuses and isolating plugs.
3. The diesel generator emergency power supply system according to claim 2, wherein: the diesel engine bus is also provided with a standby power line, and the standby power line is provided with a diesel engine feeder circuit breaker.
4. A diesel generator emergency power supply system according to any one of claims 1 to 3, wherein: still including the control system who is used for controlling each circuit breaker and isolator on-off state, control system mainly includes PLC controller and DCS remote control module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023207793.4U CN214124936U (en) | 2020-12-28 | 2020-12-28 | Diesel generator security power supply system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023207793.4U CN214124936U (en) | 2020-12-28 | 2020-12-28 | Diesel generator security power supply system |
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| Publication Number | Publication Date |
|---|---|
| CN214124936U true CN214124936U (en) | 2021-09-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202023207793.4U Active CN214124936U (en) | 2020-12-28 | 2020-12-28 | Diesel generator security power supply system |
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| CN (1) | CN214124936U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114157011A (en) * | 2021-11-01 | 2022-03-08 | 国能神福(龙岩)发电有限公司 | Safety power supply system |
| CN116031924A (en) * | 2022-12-28 | 2023-04-28 | 中国电力工程顾问集团中南电力设计院有限公司 | Current transformer station power system wiring and operation method with security section |
-
2020
- 2020-12-28 CN CN202023207793.4U patent/CN214124936U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114157011A (en) * | 2021-11-01 | 2022-03-08 | 国能神福(龙岩)发电有限公司 | Safety power supply system |
| CN116031924A (en) * | 2022-12-28 | 2023-04-28 | 中国电力工程顾问集团中南电力设计院有限公司 | Current transformer station power system wiring and operation method with security section |
| CN116031924B (en) * | 2022-12-28 | 2024-04-16 | 中国电力工程顾问集团中南电力设计院有限公司 | Current transformer station power system wiring and operation method with security section |
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