CN210297586U - Parallel operation control system of generator set and rail engineering vehicle - Google Patents
Parallel operation control system of generator set and rail engineering vehicle Download PDFInfo
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- CN210297586U CN210297586U CN201921405415.1U CN201921405415U CN210297586U CN 210297586 U CN210297586 U CN 210297586U CN 201921405415 U CN201921405415 U CN 201921405415U CN 210297586 U CN210297586 U CN 210297586U
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Abstract
The utility model provides a generator set parallel operation control system, which comprises a first generator set, a first parallel operation controller and a first power distribution cabinet, wherein the first power distribution cabinet is provided with a manual parallel operation switch and an automatic parallel operation switch; the power distribution system also comprises a second generator set, a second parallel machine controller and a second power distribution cabinet which jointly form a second power set; the first parallel machine controller and the second parallel machine controller are connected and communicated through a bus, and the load power of the parallel machine control system of the generator sets is adjusted and distributed to the two generator sets according to set conditions, so that the power of the whole parallel machine control system of the generator sets is supplied by the parallel machine of the two generator sets and automatically distributed to the load, and the automatic switching of the power supply of the single generator set and the double generator sets is realized. The utility model also provides a track machineshop car. Compared with the prior art, the utility model discloses a generating set parallel operation control system and track machineshop car simple structure, simple operation and good reliability.
Description
Technical Field
The utility model relates to a generator control system field especially relates to a apply to generating set parallel operation control system and track machineshop car of track engineering.
Background
Along with the rapid development of railways in China in recent years, along with the rapid development of railway construction and the increase of newly-built lines, the line maintenance workload born by railway departments is larger and larger, the number of constructors is also larger and larger, the electric load on a rail car is larger and larger, the load power is also larger and larger, and the requirement on the capacity of a generator set is higher and higher.
However, due to the limitation of the vehicle installation space of the rail engineering vehicle, the high-power generator set cannot be installed on the rail engineering vehicle, and in the related technology, the load of two low-power generators is used for providing power, but the wiring of the method is complex, whether the two generator sets are started to work simultaneously needs to be judged in advance, and the operation is inconvenient.
Therefore, a new parallel operation control system for generator sets and a rail engineering vehicle are needed to solve the above problems.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the technical problem that needs to solve provides a generating set parallel operation control system and track machineshop car of simple structure and simple operation.
In order to solve the technical problem, the utility model provides a generating set parallel operation control system, include: a first generator set; the first parallel controller is electrically connected with the first generator set and used for sending a rotating speed adjusting and closing instruction to the first generator set and simultaneously acquiring a voltage signal, a current signal, a rotating speed signal and a closing feedback signal of the first generator set so as to realize monitoring and control of the working state of the first generator set; the first voltage regulator is respectively electrically connected with the first generator set and the first parallel controller, and the first voltage regulator receives a voltage regulation instruction sent by the first parallel controller and then controls the first generator set to realize voltage regulation; the first power distribution cabinet is electrically connected with the first parallel machine controller and comprises a first generator set power supply switch for independently controlling the start and stop of the first generator set, and a manual parallel machine switch and an automatic parallel machine switch which are respectively used for starting and controlling a parallel machine operation mode of the generator set parallel machine control system; a second generator set; the second parallel operation controller is electrically connected with the second generator set and used for sending a rotating speed adjusting and closing instruction to the second generator set and simultaneously acquiring a voltage signal, a current signal, a rotating speed signal and a closing feedback signal of the second generator set so as to realize monitoring and control of the working state of the second generator set; the second voltage regulator is respectively electrically connected with the second generator set and the second parallel operation controller, and the second voltage regulator receives a voltage regulation instruction sent by the second parallel operation controller and then controls the second generator set to realize voltage regulation; the second power distribution cabinet is electrically connected with the second parallel operation controller, comprises a second generator set power supply switch and is used for independently controlling the start and stop of the second generator set; and the first parallel machine controller and the second parallel machine controller are in communication connection through a CAN bus.
Preferably, the first parallel machine controller and the second parallel machine controller are further used for respectively collecting and monitoring water temperature, oil pressure, frequency, load power and running time parameters of the first generator set and the second generator set, and realizing water temperature, oil pressure, overspeed, undervoltage, overvoltage, overload and three-phase voltage unbalance protection of the first generator set and the second generator set according to preset rules.
Preferably, the parallel operation mode of the generator set parallel operation control system comprises: a manual parallel operation power supply mode and an automatic parallel operation power supply mode.
Preferably, the manual parallel operation power supply mode includes:
pressing the manual parallel operation switch, manually starting the first generator set or the second generator set and switching on, then manually starting the second generator set or the first generator set, and switching on after the second generator set or the first generator set operates stably;
the first parallel machine controller and the second parallel machine controller are communicated through the CAN bus and detect whether voltage differences and frequency differences between the first generator set and the second generator set are in a set range or not, detect whether phase angles and phase sequences of the first generator set and the second generator set are the same or not, and automatically adjust the phase angles and the phase sequences until the voltage differences and the frequency differences between the first generator set and the second generator set are in the set range within a set time and the phase angles and the phase sequences of the first generator set and the second generator set are the same, so that the first generator set and the second generator set are successfully switched on synchronously;
the first parallel machine controller and the second parallel machine controller control the first generator set and the second generator set to automatically distribute load power, and a manual parallel machine power supply mode is achieved.
Preferably, the automatic parallel operation power supply mode includes:
pressing the automatic parallel operation switch, automatically starting the first generator set and switching on through the first parallel operation controller, and monitoring the loaded power of the first generator set in real time by the first parallel operation controller:
if the actual power of the first generator set is smaller than a first set value of the rated power of the first generator set, the first generator set works and the second generator set does not work;
if the actual power of the first generator set is larger than a second set value of the rated power of the first generator set, the first parallel machine controller sends a starting request signal to the second parallel machine controller through the CAN bus, and the second parallel machine controller starts the second generator set;
the first parallel machine controller and the second parallel machine controller are communicated through the CAN bus, detect, compare and automatically adjust the voltage difference, the frequency, the phase angle and the phase sequence of the first generator set and the second generator set to realize synchronous switching-on, and automatically distribute load power to the first generator set and the second generator set;
when the load power of the generator set parallel operation control system is smaller than a third set value of the rated power of the first generator set or the second generator set, the second generator set automatically stops, and the load power of the generator set parallel operation control system is transferred to the first generator set.
Preferably, the first set value is 40%, the second set value is 80%, and the third set value is 40%.
Preferably, the first generator set and the second generator set are both 80Kw diesel generator sets.
The utility model also provides a track machineshop car, include the utility model provides an above-mentioned generating set parallel operation control system.
Preferably, the rail engineering truck comprises at least two carriages, and the first generator set and the second generator set are respectively assembled in the two carriages.
Compared with the prior art, the parallel operation control system of the generator set is provided with a first generator set, a first parallel operation controller and a first power distribution cabinet which jointly form a first power set, wherein the first power distribution cabinet is provided with a manual parallel operation switch and an automatic parallel operation switch; meanwhile, a second generator set, a second parallel machine controller and a second power distribution cabinet are arranged to form a second power set; the first parallel machine controller and the second parallel machine controller are connected and communicated through a bus, and the load power of the parallel machine control system of the generator set is adjusted and distributed to the first generator set and the second generator set according to set conditions, so that the power of the whole machine of the parallel machine control system of the generator set is supplied by the parallel machine of the two generator sets and the load is automatically distributed, and the automatic switching of the power supply of the single generator set and the power supply of the double generator sets is realized, and the parallel machine control system of the generator set is simple in structure and convenient and flexible to operate; through the first power distribution cabinet, the manual parallel operation switch and the automatic parallel operation switch realize parallel operation adjustment in different modes according to different load conditions, the defect of long-time low-load operation of the high-power generator set is avoided, meanwhile, the fuel consumption of the high-power generator set can be reduced, and the power distribution cabinet is energy-saving and environment-friendly.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained without inventive work, wherein:
fig. 1 is a schematic circuit structure diagram of the parallel operation control system of the generator set of the present invention;
fig. 2 is the utility model discloses generating set parallel operation control system applies to track machineshop car's schematic structure.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
Referring to fig. 1, the present invention provides a parallel operation control system 100 for a generator set, including: the system comprises a first generator set 1, a first parallel machine controller 2, a first voltage regulator 3, a first power distribution cabinet 4, a second generator set 5, a second parallel machine controller 6, a second voltage regulator 7 and a second power distribution cabinet 8.
In the present embodiment, the first generator unit 1 and the second generator unit 5 are both 80Kw diesel generator units, but the rated power is not limited thereto, and may be different.
The first parallel machine controller 2 and the second parallel machine controller 6 are in communication connection through a CAN bus.
The first parallel controller 2 is electrically connected with the first generator set 1 and is used for sending a rotating speed adjusting and closing instruction to the first generator set 1 and collecting a voltage signal, a current signal, a rotating speed signal, a closing feedback signal and the like of the first generator set 1 so as to monitor and control the working state of the first generator set 1.
Preferably, the first parallel controller 2 is further configured to collect and monitor parameters of the first generator set 1, such as water temperature, oil pressure, frequency, load power, and operation time, and implement protection of the first generator set 1 against water temperature, oil pressure, overspeed, undervoltage, overvoltage, overload, and three-phase voltage imbalance according to a preset rule, so as to improve reliability of the generator set parallel control system 100.
The first voltage regulator 3 is electrically connected to the first generator set 1 and the first parallel controller 2, respectively. And the first voltage regulator 3 receives the voltage regulation instruction sent by the first parallel controller 2 and then controls the first generator set 1 to realize voltage regulation.
The first power distribution cabinet 4 is electrically connected with the first parallel controller 2. In this implementation test, the first power distribution cabinet 4 includes a first generator set power supply switch 41 for individually controlling the start and stop of the first generator set 1, and a manual parallel operation switch 42 and an automatic parallel operation switch 43 for respectively starting and controlling the parallel operation mode of the generator set parallel operation control system 100.
The second parallel operation controller 6 is electrically connected with the second generator set 5, and is configured to send a rotation speed adjusting and closing instruction to the second generator set 5, and simultaneously collect a voltage signal, a current signal, a rotation speed signal, and a closing feedback signal of the second generator set 5 to monitor and control a working state of the second generator set 5.
Preferably, the second parallel operation controller 6 is further configured to collect and monitor water temperature, oil pressure, frequency, load power, and operation time parameters of the second generator set 5, and implement protection of the water temperature, the oil pressure, overspeed, undervoltage, overvoltage, overload, and three-phase voltage imbalance of the second generator set 5 according to a preset rule, so as to improve reliability of the generator set parallel operation control system 100.
The second voltage regulator 7 is electrically connected to the second genset 5 and the second parallel operation controller 6, respectively. And the second voltage regulator 7 receives the voltage regulation instruction sent by the second parallel operation controller 6 and then controls the second generator set 5 to realize voltage regulation.
And the second power distribution cabinet 8 is electrically connected with the second parallel operation controller 6. In this embodiment, the second power distribution cabinet 8 includes a second power supply switch 81 for individually controlling the start and stop of the second power generator set 5.
In this embodiment, the first generator set power supply switch 41 of the first power distribution cabinet 4 can realize the manual single-machine start and stop of the first generator set 1. The second generator set power supply switch 81 of the second power distribution cabinet 8 can realize the manual single-machine start and stop of the second generator set 5.
In addition, the parallel operation control system 100 of the generator set further includes a parallel operation mode, which includes: manual parallel operation power supply mode and automatic parallel operation power supply mode specifically pass through first switch board 4 manual parallel operation switch 42 and automatic parallel operation switch 43 realize, specifically:
the implementation steps of the manual parallel operation power supply mode comprise:
firstly, pressing the manual parallel operation switch 42 to manually start the first generator set 1 or the second generator set 5 and switch on, then manually starting the second generator set 5 or the first generator set 1, and switching on after the second generator set 5 or the first generator set 1 operates stably.
And secondly, the first parallel controller 2 and the second parallel controller 6 communicate through the CAN bus, detect whether the voltage difference and the frequency difference between the first generator set 1 and the second generator set 5 are within a set range, detect whether the phase angles and the phase sequences of the first generator set 1 and the second generator set 5 are the same, and automatically adjust until the voltage difference and the frequency difference between the first generator set 1 and the second generator set 5 are within the set range within a set time, and the phase angles and the phase sequences of the first generator set 1 and the second generator set 5 are the same, so that the synchronous switching on of the first generator set 1 and the second generator set 5 is successful.
And thirdly, the first parallel machine controller 2 and the second parallel machine controller 6 control the first generator set 1 and the second generator set 5 to automatically distribute load power, so that a manual parallel machine power supply mode is realized.
The implementation steps of the automatic parallel operation power supply mode comprise:
in the first step, the automatic parallel operation switch 43 is pressed, the first generator set 1 is automatically started and switched on through the first parallel controller 2, and the first parallel controller 2 monitors the loaded power of the first generator set 2 in real time:
if the actual power of the first generator set 1 is smaller than a first set value of the rated power of the first generator set, the first generator set 1 works and the second generator set 2 does not work. For example, the first set value is 40%.
If the actual power of the first generator set 1 is greater than a second set value of the rated power of the first generator set, the first parallel controller 2 sends a starting request signal to the second parallel controller 6 through the CAN bus, and the second parallel controller 6 starts the second generator set 5. For example, the second set value is 80%.
And secondly, the first parallel controller 2 and the second parallel controller 6 communicate through the CAN bus, detect and compare and automatically adjust the voltage difference, the frequency, the phase angle and the phase sequence of the first generator set 1 and the second generator set 5 to realize synchronous switching-on, and automatically distribute load power to the first generator set 1 and the second generator set 5.
And thirdly, when the load power of the generator set parallel operation control system 100 is smaller than a third set value of the rated power of the first generator set 1 or the second generator set 2, the second generator set 5 is automatically stopped, and the load power of the generator set parallel operation control system 100 is transferred to the first generator set 1. For example, the third setting value is 40%.
When the generator set parallel operation control system 100 runs on a track engineering vehicle, the track engineering vehicle is powered by one generator set under different working conditions when the load power of the whole vehicle is less than 40% of the rated power of a single generator set, and when the load power of the whole vehicle is greater than 80% of the rated power of the single generator set, the two generator sets are automatically parallel operated to supply power and automatically distribute loads.
Of course, the first set value, the second set value, and the third set value are not limited thereto.
In the structure, the parallel operation control system 100 of the generator set avoids the defect of long-time low-load operation of the high-power generator set by realizing two parallel operation modes of manual parallel operation and automatic parallel operation, and can reduce the fuel consumption of the high-power generator set, thereby being energy-saving and environment-friendly.
As shown in fig. 2, the present invention further provides a track-mounted mobile machinery shop 200, including the present invention provides a parallel operation control system 100 for the generator set. Specifically, the rail engineering truck 200 includes at least two carriages, a truck a and a truck B, and the first generator set 1 and the second generator set 5 are respectively assembled in the two carriages of the truck a and the truck B.
Compared with the prior art, the parallel operation control system of the generator set is provided with a first generator set, a first parallel operation controller and a first power distribution cabinet which jointly form a first power set, wherein the first power distribution cabinet is provided with a manual parallel operation switch and an automatic parallel operation switch; meanwhile, a second generator set, a second parallel machine controller and a second power distribution cabinet are arranged to form a second power set; the first parallel machine controller and the second parallel machine controller are connected and communicated through a bus, and the load power of the parallel machine control system of the generator set is adjusted and distributed to the first generator set and the second generator set according to set conditions, so that the power of the whole machine of the parallel machine control system of the generator set is supplied by the parallel machine of the two generator sets and the load is automatically distributed, and the automatic switching of the power supply of the single generator set and the power supply of the double generator sets is realized, and the parallel machine control system of the generator set is simple in structure and convenient and flexible to operate; through the first power distribution cabinet, the manual parallel operation switch and the automatic parallel operation switch realize parallel operation adjustment in different modes according to different load conditions, the defect of long-time low-load operation of the high-power generator set is avoided, meanwhile, the fuel consumption of the high-power generator set can be reduced, and the power distribution cabinet is energy-saving and environment-friendly.
The above only is the embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structures or equivalent processes of the present invention are used in the specification and the attached drawings, or directly or indirectly applied to other related technical fields, and the same principle is included in the protection scope of the present invention.
Claims (9)
1. A generator set parallel operation control system is characterized by comprising:
a first generator set;
the first parallel controller is electrically connected with the first generator set and used for sending a rotating speed adjusting and closing instruction to the first generator set and simultaneously acquiring a voltage signal, a current signal, a rotating speed signal and a closing feedback signal of the first generator set so as to realize monitoring and control of the working state of the first generator set;
the first voltage regulator is respectively electrically connected with the first generator set and the first parallel controller, and the first voltage regulator receives a voltage regulation instruction sent by the first parallel controller and then controls the first generator set to realize voltage regulation;
the first power distribution cabinet is electrically connected with the first parallel machine controller and comprises a first generator set power supply switch for independently controlling the start and stop of the first generator set, and a manual parallel machine switch and an automatic parallel machine switch which are respectively used for starting and controlling a parallel machine operation mode of the generator set parallel machine control system;
a second generator set;
the second parallel operation controller is electrically connected with the second generator set and used for sending a rotating speed adjusting and closing instruction to the second generator set and simultaneously acquiring a voltage signal, a current signal, a rotating speed signal and a closing feedback signal of the second generator set so as to realize monitoring and control of the working state of the second generator set;
the second voltage regulator is respectively electrically connected with the second generator set and the second parallel operation controller, and the second voltage regulator receives a voltage regulation instruction sent by the second parallel operation controller and then controls the second generator set to realize voltage regulation; and
the second power distribution cabinet is electrically connected with the second parallel operation controller, comprises a second generator set power supply switch and is used for independently controlling the start and stop of the second generator set;
and the first parallel machine controller and the second parallel machine controller are in communication connection through a CAN bus.
2. The generator set parallel operation control system according to claim 1, wherein the first parallel operation controller and the second parallel operation controller are further configured to collect and monitor water temperature, oil pressure, frequency, load power, and operation time parameters of the first generator set and the second generator set, respectively, and implement protection of the water temperature, oil pressure, overspeed, undervoltage, overvoltage, overload, and three-phase voltage unbalance of the first generator set and the second generator set according to preset rules.
3. The genset parallel operation control system of claim 1 wherein the parallel operation mode of the genset parallel operation control system comprises: a manual parallel operation power supply mode and an automatic parallel operation power supply mode.
4. The genset parallel operation control system of claim 3 wherein the manual parallel operation power mode comprises:
pressing the manual parallel operation switch, manually starting the first generator set or the second generator set and switching on, then manually starting the second generator set or the first generator set, and switching on after the second generator set or the first generator set operates stably;
the first parallel machine controller and the second parallel machine controller are communicated through the CAN bus and detect whether voltage differences and frequency differences between the first generator set and the second generator set are in a set range or not, detect whether phase angles and phase sequences of the first generator set and the second generator set are the same or not, and automatically adjust the phase angles and the phase sequences until the voltage differences and the frequency differences between the first generator set and the second generator set are in the set range within a set time and the phase angles and the phase sequences of the first generator set and the second generator set are the same, so that the first generator set and the second generator set are successfully switched on synchronously;
the first parallel machine controller and the second parallel machine controller control the first generator set and the second generator set to automatically distribute load power, and a manual parallel machine power supply mode is achieved.
5. The genset parallel operation control system of claim 3 wherein the automatic parallel operation power supply mode comprises:
pressing the automatic parallel operation switch, automatically starting the first generator set and switching on through the first parallel operation controller, and monitoring the loaded power of the first generator set in real time by the first parallel operation controller:
if the actual power of the first generator set is smaller than a first set value of the rated power of the first generator set, the first generator set works and the second generator set does not work;
if the actual power of the first generator set is larger than a second set value of the rated power of the first generator set, the first parallel machine controller sends a starting request signal to the second parallel machine controller through the CAN bus, and the second parallel machine controller starts the second generator set;
the first parallel machine controller and the second parallel machine controller are communicated through the CAN bus, detect, compare and automatically adjust the voltage difference, the frequency, the phase angle and the phase sequence of the first generator set and the second generator set to realize synchronous switching-on, and automatically distribute load power to the first generator set and the second generator set;
when the load power of the generator set parallel operation control system is smaller than a third set value of the rated power of the first generator set or the second generator set, the second generator set automatically stops, and the load power of the generator set parallel operation control system is transferred to the first generator set.
6. The genset parallel operation control system of claim 5 wherein the first set point is 40%, the second set point is 80%, and the third set point is 40%.
7. The genset parallel operation control system of claim 1 wherein the first genset and the second genset are both 80Kw diesel gensets.
8. A rail engineering vehicle, characterized by comprising the generator set parallel operation control system as claimed in any one of claims 1 to 7.
9. The rail-bound work vehicle of claim 8, wherein the rail-bound work vehicle comprises at least two carriages, and the first generator set and the second generator set are respectively assembled in the two carriages.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201921405415.1U CN210297586U (en) | 2019-08-27 | 2019-08-27 | Parallel operation control system of generator set and rail engineering vehicle |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201921405415.1U CN210297586U (en) | 2019-08-27 | 2019-08-27 | Parallel operation control system of generator set and rail engineering vehicle |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110401388A (en) * | 2019-08-27 | 2019-11-01 | 宝鸡中车时代工程机械有限公司 | Generating set parallel connection control system and rail engineering automobile |
| CN111999066A (en) * | 2020-08-31 | 2020-11-27 | 河南柴油机重工有限责任公司 | Capacity expansion method and device for diesel generating set test bed load |
| CN112421684A (en) * | 2020-10-13 | 2021-02-26 | 东莞市唯美装饰材料有限公司 | Control method of power generation equipment, power generation equipment and storage medium |
-
2019
- 2019-08-27 CN CN201921405415.1U patent/CN210297586U/en not_active Withdrawn - After Issue
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110401388A (en) * | 2019-08-27 | 2019-11-01 | 宝鸡中车时代工程机械有限公司 | Generating set parallel connection control system and rail engineering automobile |
| CN110401388B (en) * | 2019-08-27 | 2024-07-12 | 宝鸡中车时代工程机械有限公司 | Parallel operation control system of generator set and track engineering vehicle |
| CN111999066A (en) * | 2020-08-31 | 2020-11-27 | 河南柴油机重工有限责任公司 | Capacity expansion method and device for diesel generating set test bed load |
| CN112421684A (en) * | 2020-10-13 | 2021-02-26 | 东莞市唯美装饰材料有限公司 | Control method of power generation equipment, power generation equipment and storage medium |
| CN112421684B (en) * | 2020-10-13 | 2023-05-12 | 东莞市唯美陶瓷工业园有限公司 | Control method of power generation equipment, power generation equipment and storage medium |
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