CN110943532A - Sequential control operation detection method applied to uninterruptible power supply for electric power - Google Patents
Sequential control operation detection method applied to uninterruptible power supply for electric power Download PDFInfo
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- CN110943532A CN110943532A CN201911353029.7A CN201911353029A CN110943532A CN 110943532 A CN110943532 A CN 110943532A CN 201911353029 A CN201911353029 A CN 201911353029A CN 110943532 A CN110943532 A CN 110943532A
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- switch
- disconnection
- power supply
- input switch
- uninterruptible power
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
- H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
- H02J9/06—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems
- H02J9/062—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems for AC powered loads
Abstract
The invention relates to a sequential control operation and detection method for an uninterruptible power supply for electric power, and belongs to the field of operation and detection of an operation site of an electric power system. When the uninterruptible power supply for electric power is overhauled and withdrawn or put into operation, the industrial personal computer sends out a pulse instruction to control the switches to be opened and closed in sequence, and the direct current input switch, the alternating current input switch, the bypass input switch and the UPS output switch are taken as operation objects, and selection and sequential execution operation are carried out according to different configuration schemes of a transformer substation field, so that the withdrawal or the putting in of the uninterruptible power supply are realized. The invention can greatly facilitate the operation of the uninterruptible power supply for electric power, and greatly improve the operation safety of operation and maintenance personnel and the working efficiency of maintenance personnel.
Description
Technical Field
The invention relates to a sequential control operation and detection method for an uninterruptible power supply for electric power, and belongs to the field of operation and detection of an operation site of an electric power system.
Background
At present, with the rapid development of the comprehensive automation and communication technology of the transformer substation, more and more transformer substation integrated devices are needed, the integrated devices need high-performance index and reliable alternating current power supplies, an uninterruptible power supply (also called as a power system special UPS) for power becomes indispensable power supply configuration for the transformer substation, and the uninterruptible power supply can continuously provide high-quality alternating current power supplies for loads such as the integrated devices and the communication devices when the transformer substation is in power failure or power failure in a total station, so that the continuous normal work of the loads is ensured. When the uninterruptible power supply is overhauled, corresponding switches are required to be disconnected according to different configuration modes in sequence to be isolated from the running power supply, and the manual operation needs a long time and is easy to cause misoperation, so that certain risks exist.
Disclosure of Invention
The invention aims to solve the defects in the prior art and provides the sequential control operation and detection method applied to the uninterruptible power supply for electric power.
A sequence control operation detection method applied to an electric uninterrupted power supply is characterized in that when the electric uninterrupted power supply is overhauled, quit or put into operation, a pulse instruction is sent by an industrial personal computer to control switches to be opened and closed in sequence, and the sequence control operation detection method of a single machine configuration mode, a serial standby redundancy configuration mode, a double-machine double-bus with bus-bar connection switch configuration mode and a 1+1 parallel online redundancy operation configuration mode comprises the following steps:
1. single machine configuration mode
When the UPS is withdrawn, the electric operating mechanisms on the switches are controlled by the industrial personal computer, so that the switches are sequentially disconnected, wherein the disconnection sequence of the switches comprises the disconnection of the direct current input switch, the disconnection of the alternating current input switch, the connection of the UPS manual maintenance switch, the disconnection of the bypass input switch and the disconnection of the UPS output switch;
2. serial spare redundancy configuration
When the UPS2 power supply is quitted, the electric operating mechanism on each switch is controlled by the industrial personal computer, so that the switches are disconnected in sequence, and the disconnection sequence of the switches comprises a direct current input switch disconnection sequence, an alternating current input switch disconnection sequence, a UPS2 manual maintenance switch connection sequence, a bypass input switch disconnection sequence and a UPS2 output switch disconnection sequence;
3. double-machine double-bus configuration mode with bus-tie switch
When the UPS2 power supply is quitted, the electric operating mechanism on each switch is controlled by the industrial personal computer, so that the switches are disconnected in sequence, and the disconnection sequence of the switches comprises a direct current input switch disconnection sequence, an alternating current input switch disconnection sequence, a UPS2 manual maintenance switch connection sequence, a bypass input switch disconnection sequence and a UPS2 output switch disconnection sequence;
4. 1+1 parallel online redundancy operation configuration mode
When the UPS2 power supply is quitted, the electric operating mechanism on each switch is controlled by the industrial personal computer, so that the switches are sequentially disconnected, and the disconnection sequence of the switches sequentially comprises disconnecting the direct current input switch, disconnecting the alternating current input switch, disconnecting the bypass input switch, disconnecting the output switch of the UPS2 and disconnecting the parallel machine line.
The sequential control operation and detection method of the uninterruptible power supply for electric power has the advantages of simple principle, convenience and practicability, can greatly facilitate the operation of the uninterruptible power supply for electric power, greatly improves the operation safety of operation and maintenance personnel and the working efficiency of maintenance personnel, and has important practical significance in ensuring safe construction.
Drawings
FIG. 1: configuring a single uninterrupted power supply of a transformer substation;
FIG. 2: the uninterrupted power supply of the transformer substation is connected in series with a standby redundant configuration;
FIG. 3: the uninterrupted power supply of the transformer substation is configured by a double-machine double-bus with a bus coupler switch;
FIG. 4: the method comprises the following steps that (1) an uninterrupted power supply (1 + 1) of a transformer substation is connected in parallel to be configured in an online redundant operation mode;
FIG. 5: flow chart of the invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-5, a sequential control operation method applied to an uninterruptible power supply for electric power, wherein the uninterruptible power supply for electric power is used for maintenance, quit or put into operation, and the sequential control operation method comprises the following steps of sending a pulse instruction to control the on and off of each switch in sequence through an industrial personal computer, and adopting a single machine configuration mode, a serial standby redundant configuration mode, a double-machine double-bus with bus-coupled switch configuration mode and a 1+1 parallel online redundant operation configuration mode:
1. single machine configuration mode
When the UPS is withdrawn, the electric operating mechanisms on the switches are controlled by the industrial personal computer, so that the switches are sequentially disconnected, wherein the disconnection sequence of the switches comprises the disconnection of the direct current input switch, the disconnection of the alternating current input switch, the connection of the UPS manual maintenance switch, the disconnection of the bypass input switch and the disconnection of the UPS output switch;
2. serial spare redundancy configuration
When the UPS2 power supply is quitted, the electric operating mechanism on each switch is controlled by the industrial personal computer, so that the switches are disconnected in sequence, and the disconnection sequence of the switches comprises a direct current input switch disconnection sequence, an alternating current input switch disconnection sequence, a UPS2 manual maintenance switch connection sequence, a bypass input switch disconnection sequence and a UPS2 output switch disconnection sequence;
3. double-machine double-bus configuration mode with bus-tie switch
When the UPS2 power supply is quitted, the electric operating mechanism on each switch is controlled by the industrial personal computer, so that the switches are disconnected in sequence, and the disconnection sequence of the switches comprises a direct current input switch disconnection sequence, an alternating current input switch disconnection sequence, a UPS2 manual maintenance switch connection sequence, a bypass input switch disconnection sequence and a UPS2 output switch disconnection sequence;
4. 1+1 parallel online redundancy operation configuration mode
When the UPS2 power supply is quitted, the electric operating mechanism on each switch is controlled by the industrial personal computer, so that the switches are sequentially disconnected, and the disconnection sequence of the switches sequentially comprises disconnecting the direct current input switch, disconnecting the alternating current input switch, disconnecting the bypass input switch, disconnecting the output switch of the UPS2 and disconnecting the parallel machine line.
When an operator operates the uninterruptible power supply, the identity of the operator is firstly verified, then a field configuration mode is selected, the operator is determined to perform the operation of switching in or switching out, a corresponding subprogram is entered, an industrial personal computer sends out a pulse instruction to operate a corresponding switch, and finally whether the switch action is correct is checked, if so, the operation is finished, and if not, the operation needs to be verified again.
The switch control mode of the invention ensures that the switch state of the direct current power supply system under normal operation cannot be influenced after the equipment exits the system through the electric operating mechanism and the state turnover of the switch controlled by the pulse signal; the electric operating mechanism is characterized in that each switch operation needs to be carried out through the processes of presetting, executing and reverse calibration; the switch operation locking function is that a switch locking device is remotely controlled, and even if misoperation occurs, the bus power loss and equipment damage cannot be caused; and one-key sequential control of the switches is realized, and the switches are sequentially disconnected according to the configuration mode.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. A sequence control operation detection method applied to an uninterruptible power supply for electric power is characterized in that when the uninterruptible power supply for electric power is overhauled, quit or put into operation, a pulse instruction is sent by an industrial personal computer to control the on-off of all switches in sequence, a direct current input switch, an alternating current input switch, a bypass input switch and a UPS output switch are taken as operation objects, and selection and sequential execution operation are carried out according to different configuration schemes of a transformer substation site, so that quit or put-in of the uninterruptible power supply is realized.
2. The sequential control operation and detection method applied to the uninterruptible power supply for electric power as claimed in claim 1, wherein the substation is configured in a stand-alone mode, and when the UPS power supply is withdrawn, the industrial personal computer controls the electric operating mechanism on each switch, so as to realize the sequential disconnection of the switches, which is sequentially the disconnection of the dc input switch, the disconnection of the ac input switch, the switching on of the UPS manual maintenance switch, the disconnection of the bypass input switch, and the disconnection of the UPS output switch.
3. The sequential control operation and detection method applied to the uninterruptible power supply for power as claimed in claim 1, wherein the substation is in a serial standby redundant configuration mode, and when the UPS2 power supply is withdrawn, the industrial personal computer controls the electric operating mechanism on each switch so as to realize sequential disconnection of the switches, which are sequentially a disconnection dc input switch, a disconnection ac input switch, a connection of a manual maintenance switch of the UPS2, a disconnection of a bypass input switch, and a disconnection of an output switch of the UPS 2.
4. The sequential control operation and detection method applied to the uninterruptible power supply for power as claimed in claim 1, wherein the substation is configured in a dual-bus-bar configuration mode, and when the UPS2 power supply is removed, the industrial personal computer controls the electric operating mechanism on each switch, so as to realize sequential disconnection of the switches, which are sequentially disconnection of the dc input switch, disconnection of the ac input switch, switching on of the manual maintenance switch of the UPS2, disconnection of the bypass input switch, and disconnection of the output switch of the UPS 2.
5. The sequential control operation and detection method applied to the uninterruptible power supply for electric power as claimed in claim 1, characterized in that the field of the substation is in a 1+1 parallel online redundant operation configuration mode, when the UPS2 power supply is withdrawn, the electric operating mechanism on each switch is controlled by the industrial personal computer, so that the switches are sequentially disconnected, and the disconnection sequence of the switches sequentially comprises disconnecting the direct current input switch, disconnecting the alternating current input switch, disconnecting the bypass input switch, disconnecting the output switch of the UPS2, and disconnecting the parallel machine line.
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| CN201911353029.7A CN110943532A (en) | 2019-12-25 | 2019-12-25 | Sequential control operation detection method applied to uninterruptible power supply for electric power |
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| CN201911353029.7A CN110943532A (en) | 2019-12-25 | 2019-12-25 | Sequential control operation detection method applied to uninterruptible power supply for electric power |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112953239A (en) * | 2021-03-04 | 2021-06-11 | 广东电网有限责任公司 | Topological structure of DC-DC converter |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205453283U (en) * | 2015-12-31 | 2016-08-10 | 重庆旗能电铝有限公司 | Incessant UPS power supply unit |
| CN206302202U (en) * | 2016-08-31 | 2017-07-04 | 西安市地下铁道有限责任公司 | A kind of unit master control Redundant Control type UPS |
| CN207968064U (en) * | 2018-03-14 | 2018-10-12 | 山东鲁冶瑞宝电气自动化有限公司 | A kind of uninterruptible power supply monitoring device |
| CN208028657U (en) * | 2018-03-28 | 2018-10-30 | 吉林市安瑞克电气科技有限责任公司 | A kind of intelligent ups power control system |
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- 2019-12-25 CN CN201911353029.7A patent/CN110943532A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205453283U (en) * | 2015-12-31 | 2016-08-10 | 重庆旗能电铝有限公司 | Incessant UPS power supply unit |
| CN206302202U (en) * | 2016-08-31 | 2017-07-04 | 西安市地下铁道有限责任公司 | A kind of unit master control Redundant Control type UPS |
| CN207968064U (en) * | 2018-03-14 | 2018-10-12 | 山东鲁冶瑞宝电气自动化有限公司 | A kind of uninterruptible power supply monitoring device |
| CN208028657U (en) * | 2018-03-28 | 2018-10-30 | 吉林市安瑞克电气科技有限责任公司 | A kind of intelligent ups power control system |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112953239A (en) * | 2021-03-04 | 2021-06-11 | 广东电网有限责任公司 | Topological structure of DC-DC converter |
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Effective date of registration: 20220801 Address after: 264000 Jiefang Road 158, Zhifu District, Yantai, Shandong Applicant after: STATE GRID SHANDONG ELECTRIC POWER COMPANY YANTAI POWER SUPPLY Co. Address before: 264000 Jiefang Road 158, Zhifu District, Yantai, Shandong Applicant before: STATE GRID SHANDONG ELECTRIC POWER COMPANY YANTAI POWER SUPPLY Co. Applicant before: STATE GRID CORPORATION OF CHINA |