CN105429286B - A kind of 0.4kV station service electrical system prepared auto restart logic - Google Patents
A kind of 0.4kV station service electrical system prepared auto restart logic Download PDFInfo
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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
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Abstract
本发明涉及一种0.4kV厂用电系统备自投逻辑，包括备自投运行条件，备自投动作过程以及备自投恢复过程。本发明可以保证自动化生产供电不中断，并且避免生产装置因失电而引起影响安全生产的严重后果。
The invention relates to a 0.4kV substation power system standby automatic switching logic, including the standby automatic switching operation conditions, the standby automatic switching operation process and the standby automatic switching recovery process. The invention can ensure uninterrupted power supply for automatic production, and avoid serious consequences affecting safe production caused by power failure of production devices.
Description
技术领域technical field
本发明涉及自动化生产供电领域，特别是一种0.4kV厂用电系统备自投逻辑。The invention relates to the field of automatic production and power supply, in particular to a 0.4kV utility power system backup self-input logic.
背景技术Background technique
备自投是备用电源自动投入使用装置的简称，由于对供电可靠性要求越来越高，已具备两回线及以上的多回供电线路，合理的备自投逻辑是安全生产的重要保证。Standby self-switching is the abbreviation of the device for automatically putting into use the backup power supply. Due to the increasingly high requirements for power supply reliability, there are already multiple power supply lines with two or more circuits. Reasonable backup and self-switching logic is an important guarantee for safe production.
发明内容Contents of the invention
有鉴于此，本发明的目的是提出一种0.4kV厂用电系统备自投逻辑，能够有效提高供电可靠性。In view of this, the purpose of the present invention is to propose a 0.4kV substation power system backup self-switching logic, which can effectively improve the reliability of power supply.
本发明采用以下方案实现：一种0.4kV厂用电系统备自投逻辑，包括第一母线、第二母线，第一进线、第二进线，所述第一进线通过1号进线开关连接至第一母线，所述第二进线通过2号开关连接至第二母线，所述第一母线与第二母线通过一联络开关相连，其中，备自投的运行需满足以下全部条件：The present invention is realized by adopting the following scheme: a 0.4kV substation power system with self-switching logic, including a first bus bar, a second bus bar, a first incoming line, and a second incoming line, and the first incoming line passes through No. 1 incoming line The switch is connected to the first busbar, the second incoming line is connected to the second busbar through the No. 2 switch, and the first busbar and the second busbar are connected through a tie switch, wherein the operation of standby automatic switching needs to meet all the following conditions :
所述1号进线开关、2号进线开关以及联络开关的控制方式选择开关在远方位置；The control mode selection switch of the No. 1 incoming line switch, the No. 2 incoming line switch and the contact switch is in a remote position;
所述1号进线开关、2号进线开关以及联络开关无故障跳闸；The No. 1 incoming line switch, the No. 2 incoming line switch and the contact switch trip without fault;
现场备自投控制方式为开关在远方投入状态；The on-site automatic switch-on control method is that the switch is in the remote switch-in state;
上位机远方备自投投入。The upper computer is remotely prepared for automatic input.
进一步地，所述备自投的动作过程为：Further, the action process of the self-injection is as follows:
过程1：当检测到第一进线电压异常且满足全部备自投的运行条件，分1号进线开关，此时若第二进线电压正常则合联络开关；Process 1: When the first incoming line voltage is detected to be abnormal and all operating conditions for standby automatic switching are met, divide the No. 1 incoming line switch, and at this time, if the second incoming line voltage is normal, close the contact switch;
过程2：当检测到第二进线电压异常且满足全部备自投的运行条件，分2号进线开关，此时若第一进线电压正常则合联络开关。Process 2: When the second incoming line voltage is detected to be abnormal and all operating conditions for standby automatic switching are met, divide the No. 2 incoming line switch, at this time, if the first incoming line voltage is normal, close the contact switch.
进一步地，所述备自投的自恢复过程为；Further, the self-recovery process of the self-switching device is as follows;
过程1：第一进线电压恢复正常，若2号进线开关在合位或第二进线电压正常，则先分联络开关，再合1号进线开关；若2号进线开关不在合位且第二进线电压不正常，则直接合1号进线开关；Process 1: The voltage of the first incoming line returns to normal, if the No. position and the voltage of the second incoming line is abnormal, then close the No. 1 incoming line switch directly;
过程2：第二进线电压恢复正常，若1号进线开关在合位或第一进线电压正常，则先分联络开关，再合2号进线开关；若1号进线开关不在合位且第一进线电压不正常，则直接合2号进线开关。Process 2: The voltage of the second incoming line returns to normal, if the No. position and the first incoming line voltage is abnormal, then close the No. 2 incoming line switch directly.
特别的，还包括第三进线，所述第三进线通过3号进线开关连接至所述第二母线，所述3号进线开关适用于自用配电系统，为自用配电第二母线引自检修配电的进线开关。In particular, it also includes a third incoming line, the third incoming line is connected to the second busbar through the No. 3 incoming line switch, and the No. 3 incoming line switch is suitable for self-use power distribution system, which is the second The busbar is led from the incoming switch of the maintenance power distribution.
较佳的，包括第三进线的备自投的自恢复过程为；Preferably, the self-recovery process of the standby automatic switching including the third incoming line is;
过程1：第一进线电压恢复正常，若2号进线开关在合位或第二进线电压正常，则先分联络开关和3号进线开关，再合1号进线开关；若2号进线开关不在合位且第二进线电压不正常，则分3号进线开关后直接合1号进线开关；Process 1: The voltage of the first incoming line returns to normal, if the No. No. incoming line switch is not in the close position and the voltage of the second incoming line is abnormal, then divide the No. 3 incoming line switch and directly close the No. 1 incoming line switch;
过程2：第二进线电压恢复正常，若1号进线开关在合位或第一进线电压正常，则先分联络开关和3号进线开关，再合2号进线开关；若1号进线开关不在合位且第一进线电压不正常，则分3号进线开关后直接合2号进线开关。Process 2: The voltage of the second incoming line returns to normal, if the No. If the No. 1 incoming line switch is not in the close position and the voltage of the first incoming line is abnormal, then divide the No. 3 incoming line switch and then directly close the No. 2 incoming line switch.
进一步地，所述1号进线开关与2号进线开关分别为0.4kV各自配电盘第一母线和第二母线的进线开关，所述联络开关为0.4kV各自配电盘第一母线、第二母线的联络开关。Further, the No. 1 incoming line switch and No. 2 incoming line switch are the incoming line switches of the first bus bar and the second bus bar of the respective 0.4kV switchboard respectively, and the tie switches are the first bus bar and the second bus bar of the respective 0.4kV switchboard contact switch.
综上，本发明实现的逻辑如下:In summary, the logic realized by the present invention is as follows:
1、当工作母线电压下降时，由备自投跳开工作电源的断路器后才能投入备用电源；1. When the voltage of the working bus drops, the backup power supply can only be put into operation after the circuit breaker of the working power supply is tripped by the standby self-injection switch;
2、当工作电压部分系统故障，保护动作跳开工作电源的断路器后才投入备用电源；2. When the working voltage part of the system fails, the protection action trips the circuit breaker of the working power supply before putting into the standby power supply;
3、进线电压恢复正常，备用电源的母线电压满足要求；3. The incoming line voltage returns to normal, and the bus voltage of the backup power supply meets the requirements;
4、在备自投自动恢复时需确保断开原进线电压正常且母联分开后才能合进线开关。4. When the standby automatic switch is automatically restored, it is necessary to ensure that the original incoming line voltage is normal and the bus coupler is separated before closing the incoming line switch.
与现有技术相比，本发明可以保证自动化生产供电不中断，并且避免生产装置因失电而引起影响安全生产的严重后果。Compared with the prior art, the present invention can ensure uninterrupted power supply for automatic production, and avoid serious consequences affecting safe production caused by power failure of production devices.
附图说明Description of drawings
图1为本发明实施例2进线开关1联络开关的0.4kV系统示意图。Fig. 1 is a schematic diagram of a 0.4kV system of an incoming line switch 1 tie switch in Embodiment 2 of the present invention.
图2为本发明实施例3进线开关1联络开关的0.4kV系统示意图。Fig. 2 is a schematic diagram of a 0.4kV system of an incoming line switch 1 tie switch in Embodiment 3 of the present invention.
图3为本发明实施例2进线开关1联络开关的备自投运行条件示意图。Fig. 3 is a schematic diagram of the operating conditions of the standby automatic switching of the incoming line switch 1 tie switch in the second embodiment of the present invention.
图4为本发明实施例2进线开关1联络开关的1号进线开关合闸流程示意图。Fig. 4 is a schematic diagram of the closing process of the No. 1 incoming line switch of the incoming line switch 1 tie switch in Embodiment 2 of the present invention.
图5为本发明实施例2进线开关1联络开关的1号进线开关分闸流程示意图。Fig. 5 is a schematic diagram of the opening flow of the No. 1 incoming line switch of the second incoming line switch 1 tie switch according to Embodiment 2 of the present invention.
图6为本发明实施例2进线开关1联络开关的备自投入流程示意图1(分第一进线开关，合联络开关)。Fig. 6 is a schematic diagram 1 of the backup and self-introduction process of the incoming line switch 1 tie switch in embodiment 2 of the present invention (divided into the first incoming line switch and closed tie switch).
图7为本发明实施例2进线开关1联络开关的备自投入流程示意图2(合第一进线开关)。Fig. 7 is a schematic diagram 2 of the backup self-introduction process of the incoming line switch 1 tie switch according to the embodiment 2 of the present invention (combined with the first incoming line switch).
图8为本发明实施例3进线开关1联络开关的备自投运行条件示意图。Fig. 8 is a schematic diagram of the operating conditions of the standby automatic switching of the incoming line switch 1 tie switch according to Embodiment 3 of the present invention.
图9为本发明实施例3进线开关1联络开关的1号进线开关合闸流程示意图。Fig. 9 is a schematic diagram of the closing process of the No. 1 incoming line switch of the incoming line switch 1 tie switch according to Embodiment 3 of the present invention.
图10为本发明实施例3进线开关1联络开关的1号进线开关分闸流程示意图。Fig. 10 is a schematic diagram of the opening flow of the No. 1 incoming line switch of the incoming line switch 1 tie switch according to Embodiment 3 of the present invention.
图11为本发明实施例3进线开关1联络开关的备自投入流程示意图1(分第一进线开关，合联络开关)。Fig. 11 is a schematic diagram 1 of the self-introduction process of the incoming line switch 1 tie switch in embodiment 3 of the present invention (divided into the first incoming line switch and closed tie switch).
图12为本发明实施例3进线开关1联络开关的备自投入流程示意图2(合第一进线开关)。Fig. 12 is a schematic diagram 2 of the backup self-input process of the incoming line switch 1 tie switch according to Embodiment 3 of the present invention (closed to the first incoming line switch).
图13为本发明实施例3进线开关1联络开关的3号进线开关合闸流程示意图。Fig. 13 is a schematic diagram of the closing process of the No. 3 incoming line switch of the third incoming line switch 1 tie switch according to the embodiment 3 of the present invention.
图14为本发明实施例3进线开关1联络开关的3号进线开关分闸流程示意图。Fig. 14 is a schematic diagram of the opening flow of the No. 3 incoming line switch of the third incoming line switch 1 tie switch according to Embodiment 3 of the present invention.
具体实施方式Detailed ways
下面结合附图及实施例对本发明做进一步说明。The present invention will be further described below in conjunction with the accompanying drawings and embodiments.
如图1所示，本实施例提供了一种0.4kV厂用电系统备自投逻辑，包括第一母线、第二母线，第一进线、第二进线，所述第一进线通过1号进线开关连接至第一母线，所述第二进线通过2号开关连接至第二母线，所述第一母线与第二母线通过一联络开关相连，其中，备自投的运行需满足以下全部条件，如图3所示：As shown in Figure 1, this embodiment provides a 0.4kV substation power system backup self-switching logic, including a first bus, a second bus, a first incoming line, a second incoming line, the first incoming line passes through The No. 1 incoming line switch is connected to the first bus bar, the second incoming line is connected to the second bus bar through the No. 2 switch, and the first bus bar and the second bus bar are connected through a tie switch. All of the following conditions are met, as shown in Figure 3:
所述1号进线开关、2号进线开关以及联络开关的控制方式选择开关在远方位置；The control mode selection switch of the No. 1 incoming line switch, the No. 2 incoming line switch and the contact switch is in a remote position;
所述1号进线开关、2号进线开关以及联络开关无故障跳闸；The No. 1 incoming line switch, the No. 2 incoming line switch and the contact switch trip without fault;
现场备自投控制方式为开关在远方投入状态；The on-site automatic switch-on control method is that the switch is in the remote switch-in state;
上位机远方备自投投入。The upper computer is remotely prepared for automatic input.
在本实施例中，所述备自投的动作过程为：In this embodiment, the action process of the self-initiating equipment is as follows:
过程1：当检测到第一进线电压异常且满足全部备自投的运行条件，分1号进线开关，此时若第二进线电压正常则合联络开关；Process 1: When the first incoming line voltage is detected to be abnormal and all operating conditions for standby automatic switching are met, divide the No. 1 incoming line switch, and at this time, if the second incoming line voltage is normal, close the contact switch;
过程2：当检测到第二进线电压异常且满足全部备自投的运行条件，分2号进线开关，此时若第一进线电压正常则合联络开关。Process 2: When the second incoming line voltage is detected to be abnormal and all operating conditions for standby automatic switching are met, divide the No. 2 incoming line switch, at this time, if the first incoming line voltage is normal, close the contact switch.
在本实施例中，所述备自投的自恢复过程为；In this embodiment, the self-recovery process of the self-initiating device is as follows;
过程1：第一进线电压恢复正常，若2号进线开关在合位或第二进线电压正常，则先分联络开关，再合1号进线开关；若2号进线开关不在合位且第二进线电压不正常，则直接合1号进线开关；Process 1: The voltage of the first incoming line returns to normal, if the No. position and the voltage of the second incoming line is abnormal, then close the No. 1 incoming line switch directly;
过程2：第二进线电压恢复正常，若1号进线开关在合位或第一进线电压正常，则先分联络开关，再合2号进线开关；若1号进线开关不在合位且第一进线电压不正常，则直接合2号进线开关。Process 2: The voltage of the second incoming line returns to normal, if the No. position and the first incoming line voltage is abnormal, then close the No. 2 incoming line switch directly.
具体如图4至图7所示，图4为本发明实施例2进线开关1联络开关的1号进线开关合闸流程示意图。图5为本发明实施例2进线开关1联络开关的1号进线开关分闸流程示意图。图6为本发明实施例2进线开关1联络开关的备自投入流程示意图1(分第一进线开关，合联络开关)。图7为本发明实施例2进线开关1联络开关的备自投入流程示意图2(合第一进线开关)。Specifically, as shown in Fig. 4 to Fig. 7, Fig. 4 is a schematic diagram of the closing flow of the No. 1 incoming line switch of the second incoming line switch 1 connection switch in the embodiment of the present invention. Fig. 5 is a schematic diagram of the opening flow of the No. 1 incoming line switch of the second incoming line switch 1 tie switch according to Embodiment 2 of the present invention. Fig. 6 is a schematic diagram 1 of the backup and self-introduction process of the incoming line switch 1 tie switch in embodiment 2 of the present invention (divided into the first incoming line switch and closed tie switch). Fig. 7 is a schematic diagram 2 of the backup self-introduction process of the incoming line switch 1 tie switch according to the embodiment 2 of the present invention (combined with the first incoming line switch).
特别的，如图2所示，在本实施例中还包括第三进线，所述第三进线通过3号进线开关连接至所述第二母线，所述3号进线开关适用于自用配电系统，为自用配电第二母线引自检修配电的进线开关。In particular, as shown in FIG. 2 , in this embodiment, a third incoming line is also included, and the third incoming line is connected to the second busbar through a No. 3 incoming line switch, and the No. 3 incoming line switch is suitable for The self-use power distribution system is the incoming switch for the self-use power distribution second bus leading from the maintenance power distribution.
较佳的，在本实施例中包括第三进线的备自投的自恢复过程为；Preferably, in this embodiment, the self-recovery process of the standby self-switching including the third incoming line is as follows;
过程1：第一进线电压恢复正常，若2号进线开关在合位或第二进线电压正常，则先分联络开关和3号进线开关，再合1号进线开关；若2号进线开关不在合位且第二进线电压不正常，则分3号进线开关后直接合1号进线开关；Process 1: The voltage of the first incoming line returns to normal, if the No. No. incoming line switch is not in the close position and the voltage of the second incoming line is abnormal, then divide the No. 3 incoming line switch and directly close the No. 1 incoming line switch;
过程2：第二进线电压恢复正常，若1号进线开关在合位或第一进线电压正常，则先分联络开关和3号进线开关，再合2号进线开关；若1号进线开关不在合位且第一进线电压不正常，则分3号进线开关后直接合2号进线开关。Process 2: The voltage of the second incoming line returns to normal, if the No. If the No. 1 incoming line switch is not in the close position and the voltage of the first incoming line is abnormal, then divide the No. 3 incoming line switch and then directly close the No. 2 incoming line switch.
具体如图8至图14所示，图8为本发明实施例3进线开关1联络开关的备自投运行条件示意图。图9为本发明实施例3进线开关1联络开关的1号进线开关合闸流程示意图。图10为本发明实施例3进线开关1联络开关的1号进线开关分闸流程示意图。图11为本发明实施例3进线开关1联络开关的备自投入流程示意图1(分第一进线开关，合联络开关)。图12为本发明实施例3进线开关1联络开关的备自投入流程示意图2(合第一进线开关)。图13为本发明实施例3进线开关1联络开关的3号进线开关合闸流程示意图。图14为本发明实施例3进线开关1联络开关的3号进线开关分闸流程示意图。Specifically, as shown in Fig. 8 to Fig. 14, Fig. 8 is a schematic diagram of the operating conditions of the standby automatic switching of the incoming line switch 1 tie switch according to Embodiment 3 of the present invention. Fig. 9 is a schematic diagram of the closing process of the No. 1 incoming line switch of the incoming line switch 1 tie switch according to Embodiment 3 of the present invention. Fig. 10 is a schematic diagram of the opening flow of the No. 1 incoming line switch of the incoming line switch 1 tie switch according to Embodiment 3 of the present invention. Fig. 11 is a schematic diagram 1 of the self-introduction process of the incoming line switch 1 tie switch in embodiment 3 of the present invention (divided into the first incoming line switch and closed tie switch). Fig. 12 is a schematic diagram 2 of the backup self-input process of the incoming line switch 1 tie switch according to Embodiment 3 of the present invention (closed to the first incoming line switch). Fig. 13 is a schematic diagram of the closing process of the No. 3 incoming line switch of the third incoming line switch 1 tie switch according to the embodiment 3 of the present invention. Fig. 14 is a schematic diagram of the opening flow of the No. 3 incoming line switch of the third incoming line switch 1 tie switch according to Embodiment 3 of the present invention.
在本实施例中，所述1号进线开关与2号进线开关分别为0.4kV各自配电盘第一母线和第二母线的进线开关，所述联络开关为0.4kV各自配电盘第一母线、第二母线的联络开关。In this embodiment, the No. 1 incoming line switch and No. 2 incoming line switch are respectively the incoming line switches of the first busbar and the second busbar of the respective 0.4kV switchboards, and the tie switches are the first busbars and the second busbars of the respective 0.4kV switchboards. Tie switch for the second busbar.
以上所述仅为本发明的较佳实施例，凡依本发明申请专利范围所做的均等变化与修饰，皆应属本发明的涵盖范围。The above descriptions are only preferred embodiments of the present invention, and all equivalent changes and modifications made according to the scope of the patent application of the present invention shall fall within the scope of the present invention.
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