Voice alarm method for hydropower station line switch accident tripping

Abstract

The invention discloses a voice alarm method for hydropower station line switch accident tripping. The method comprises the following steps: establishing a line switch accident tripping object signal point library; performing alarm grade grading on the line switch accident tripping object signals in the line switch accident tripping object signal point library; designing a line switch accident tripping comprehensive judgment strategy; s3, collecting a line switch accident tripping object signal of the current GIS system, inputting the signal into the judgment strategy of S3 for comprehensive judgment, and performing voice alarm on an output result through a loudspeaker; the problems that in the prior art, comprehensive judgment cannot be carried out on line fault tripping, voice playing is carried out when a single signal bit breaks down, broadcast information is complex, and fault positioning and fault danger degree judgment cannot be achieved are solved, comprehensive judgment can be carried out through multi-point-position signals, and a total tripping signal is output; the accuracy and simplification of alarm information are ensured, and the efficiency of ladder dispatching management is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of hydraulic generator line fault alarm, and in particular relates to a voice alarm method for accident tripping of a line switch in a hydropower station. Background Art

[0002] The current hydropower station power dispatching monitoring system is relatively backward in terms of intelligent voice alarm functions and has many problems. First, when a line suddenly trips due to a fault, a large number of signals will be displayed on the screen in a short period of time in the event column, and the voice alarm system will broadcast a large number of unrefined, disordered and accident tripping signals, which is not targeted and not applicable to the dispatching duty business. Second, the judgment is not intelligent enough, and the alarm strategy mainly uses a single signal displacement output alarm in the line. Third, the fault is difficult to locate. When a sudden accident occurs in the line, a large number of data points will act instantly, which will cause the voice alarm system to continuously output. The voice broadcast time is long and the semantics are messy, and the key information is submerged. The voice alarm can only serve as a sound reminder, and cannot effectively reflect the content of the fault itself. The fault is difficult to locate quickly; therefore, it is necessary to design a voice alarm method for the accident tripping of the hydropower station line switch to solve the above problems. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide a voice alarm method for the accident tripping of a hydropower station line switch, which is used to solve the problem that in the prior art, a comprehensive judgment cannot be made on the line fault tripping, and voice is played when a single signal position fails, resulting in complicated broadcast information and inability to locate the fault and determine the degree of fault danger. A comprehensive judgment can be made through multi-point signals, and a total tripping signal can be output, thereby ensuring the accuracy and simplification of the alarm information and improving the efficiency of ladder scheduling management.

[0004] In order to achieve the above technical effects, the technical solution adopted by the present invention is: A voice alarm method for accident tripping of a line switch in a hydropower station comprises the following steps: S1, establish a signal point library for line switch accident tripping objects; S2, classifying the alarm levels of the line switch accident trip object signals in the line switch accident trip object signal point library; S3, design comprehensive judgment strategy for line switch accident tripping; S4, collects the line switch accident tripping object signal of the current GIS system, inputs it into the judgment strategy of S3 for comprehensive judgment, and issues a voice alarm for the output result through the speaker.

[0005] Preferably, in step S1, establishing a line switch accident trip object signal point library includes: Collect the action signals of multiple sets of line switch differentials, multiple sets of outgoing line switch short leads, multiple sets of incoming line switch short leads and switch failure protection relays; Collect the opening and closing signals of the outgoing line switch, middle switch and incoming line switch of GIS; Collect the opening and closing signals of multiple adjacent switches of the outgoing line switch, middle switch and incoming line switch of GIS; The collected signal values ​​are associated with the signal points and entered into the database to form a line switch accident tripping object signal point library.

[0006] Preferably, in step S2, grading the alarm level of the line switch accident tripping signal in the line switch accident tripping object signal point library comprises: The action signals of multiple sets of line switch differentials, multiple sets of outgoing line switch short leads, multiple sets of incoming line switch short leads, multiple sets of incoming line switch short differentials and switch failure protection relays are regarded as low priority signals; The opening and closing signals of the outgoing line switch, the middle switch and the incoming line switch of the GIS are regarded as high priority signals; The opening and closing signals of multiple adjacent switches of the GIS outgoing line switch, middle switch and incoming line switch are used as high priority signals.

[0007] Preferably, in step S3, the comprehensive determination strategy for line switch accident tripping includes: For outgoing line switches, high priority signals are collected first: If the GIS outgoing line switch changes from the closed position to the open position, and all adjacent switches are in the closed position, the low priority signal will continue to be collected: The action signals of multiple sets of line switch differentials, multiple sets of outgoing line switch short leads and switch failure protection relays are collected. If at least one switch action is met, the outgoing line switch tripping signal is output.

[0008] Preferably, in step S3, the comprehensive determination strategy for line switch accident tripping includes: For the middle switch, the high priority signal is collected first: If the middle switch of the GIS changes from the closed position to the open position and all adjacent switches are in the closed position, the low priority signal will continue to be collected: The action signals of multiple sets of line switch differentials, multiple sets of outgoing line switch short leads, multiple sets of incoming line switch short leads and switch failure protection relays are collected. If at least one switch action is met, the middle switch tripping signal is output.

[0009] Preferably, in step S3, the comprehensive determination strategy for line switch accident tripping includes: For incoming line switches, high priority signals are collected first: If the incoming line switch of the GIS changes from the closed position to the open position, and all adjacent switches are in the closed position, the low priority signal will continue to be collected: Collect the action signals of multiple sets of incoming line switch short difference, multiple sets of incoming line switch short lead and switch failure protection relay. If at least one switch action is met, the incoming line side switch tripping signal is output.

[0010] The beneficial effects of the present invention are as follows: The present application constructs a database by collecting data from multiple signal points related to the tripping of a line switch, and divides the alarm levels of multiple signal points based on the database, and then formulates a comprehensive judgment strategy for the accidental tripping of the line switch to comprehensively consider the impact of the actions of multiple signal points, thereby outputting a single alarm signal as a comprehensive alarm; this avoids the problem that the line fault tripping in the prior art cannot be comprehensively judged, and a single signal position action is used as the judgment condition for the occurrence of a fault, and the single signal position action is used for voice playback, resulting in complicated broadcast information and the inability to locate the fault and determine the degree of fault danger; the present application performs comprehensive judgment through multi-point signals and outputs a total tripping signal, thereby ensuring the accuracy and simplification of the alarm information and improving the efficiency of ladder scheduling management. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a flowchart of this application; Figure 2 It is a schematic diagram of a comprehensive determination strategy for a line switch accident tripping in an embodiment of the present application; Figure 3 This is a diagram of the alarm display interface in an embodiment of the present application. DETAILED DESCRIPTION

[0012] Embodiment 1: like Figure 1 As shown, a voice alarm method for accident tripping of a line switch in a hydropower station comprises the following steps: S1, establish a signal point library for line switch accident tripping objects; S2, classifying the alarm levels of the line switch accident trip object signals in the line switch accident trip object signal point library; S3, design comprehensive judgment strategy for line switch accident tripping; S4, collects the line switch accident tripping object signal of the current GIS system, inputs it into the judgment strategy of S3 for comprehensive judgment, and issues a voice alarm for the output result through the speaker.

[0013] Preferably, in step S1, establishing a line switch accident trip object signal point library includes: Collect the action signals of multiple sets of line switch differentials, multiple sets of outgoing line switch short leads, multiple sets of incoming line switch short leads and switch failure protection relays; Collect the opening and closing signals of the outgoing line switch, middle switch and incoming line switch of GIS; Collect the opening and closing signals of multiple adjacent switches of the outgoing line switch, middle switch and incoming line switch of GIS; The collected signal values ​​are associated with the signal points and entered into the database to form a line switch accident tripping object signal point library.

[0014] Preferably, in step S2, grading the alarm level of the line switch accident tripping signal in the line switch accident tripping object signal point library comprises: The action signals of multiple sets of line switch differentials, multiple sets of outgoing line switch short leads, multiple sets of incoming line switch short leads, multiple sets of incoming line switch short differentials and switch failure protection relays are regarded as low priority signals; The opening and closing signals of the outgoing line switch, the middle switch and the incoming line switch of the GIS are regarded as high priority signals; The opening and closing signals of multiple adjacent switches of the GIS outgoing line switch, middle switch and incoming line switch are used as high priority signals.

[0015] Preferably, in step S3, the comprehensive determination strategy for line switch accident tripping includes: For outgoing line switches, high priority signals are collected first: If the GIS outgoing line switch changes from the closed position to the open position, and all adjacent switches are in the closed position, the low priority signal will continue to be collected: The action signals of multiple sets of line switch differentials, multiple sets of outgoing line switch short leads and switch failure protection relays are collected. If at least one switch action is met, the outgoing line switch tripping signal is output.

[0016] Preferably, in step S3, the comprehensive determination strategy for line switch accident tripping includes: For the middle switch, the high priority signal is collected first: If the middle switch of the GIS changes from the closed position to the open position and all adjacent switches are in the closed position, the low priority signal will continue to be collected: The action signals of multiple sets of line switch differentials, multiple sets of outgoing line switch short leads, multiple sets of incoming line switch short leads and switch failure protection relays are collected. If at least one switch action is met, the middle switch tripping signal is output.

[0017] Preferably, in step S3, the comprehensive determination strategy for line switch accident tripping includes: For incoming line switches, high priority signals are collected first: If the incoming line switch of the GIS changes from the closed position to the open position, and all adjacent switches are in the closed position, the low priority signal will continue to be collected: Collect the action signals of multiple sets of incoming line switch short difference, multiple sets of incoming line switch short lead and switch failure protection relay. If at least one switch action is met, the incoming line side switch tripping signal is output.

[0018] Embodiment 2: like Figure 2 As shown in the figure, taking the GIS equipment of a hydropower plant as an example, the comprehensive judgment strategy for the accident tripping of the line switch is designed as follows: For outgoing line switches, high priority signals are collected first: If the outgoing line switch of GIS changes from the closed position to the open position, and the adjacent switch 1 and the adjacent switch 2 are both in the closed position, the low priority signal will continue to be collected: The action signals of 2 sets of line switch differentials, 2 sets of outgoing line switch short leads and switch failure protection relays are collected. If at least one switch action is met, the outgoing line switch tripping signal is output.

[0019] For the middle switch, the high priority signal is collected first: If the middle switch of the GIS changes from the closed position to the open position, and the adjacent switch 1 and the adjacent switch 2 are both in the closed position, the low priority signal will continue to be collected: The action signals of 2 sets of line switch differentials, 2 sets of outgoing line switch short leads, 2 sets of incoming line switch short leads and switch failure protection relays are collected. If at least one switch action is met, the middle switch tripping signal is output.

[0020] For incoming line switches, high priority signals are collected first: If the incoming line switch of the GIS changes from the closed position to the open position, and the adjacent switch 1 and the adjacent switch 2 are both in the closed position, the low priority signal will continue to be collected: The action signals of 2 sets of incoming line switch short difference, 2 sets of incoming line switch short lead and switch failure protection relay are collected. If at least one switch action is met, the incoming line side switch tripping signal is output.

[0021] Embodiment three: like Figure 3 As shown, the present application is also configured with a human-computer interaction interface, including a touch screen, on which trip signal indications for different lines are set. When the line switch with the corresponding number outputs a trip signal, the corresponding indicator light lights up, and at the same time as the voice alarm, the number and location of the specific trip device can be intuitively displayed through visual interaction.

Claims

1. A voice alarm method for accident tripping of a line switch in a hydropower station, characterized in that: The following steps are involved: S1, establish a signal point library for line switch accident tripping objects; S2, classifying the alarm levels of the line switch accident trip object signals in the line switch accident trip object signal point library; S3, design comprehensive judgment strategy for line switch accident tripping; S4, collects the line switch accident tripping object signal of the current GIS system, inputs it into the judgment strategy of S3 for comprehensive judgment, and issues a voice alarm for the output result through the speaker.

2. A voice alarm method for accident tripping of a hydropower station line switch according to claim 1, characterized in that: In step S1, establishing a line switch accident trip object signal point library includes: Collect the action signals of multiple sets of line switch differentials, multiple sets of outgoing line switch short leads, multiple sets of incoming line switch short leads and switch failure protection relays; Collect the opening and closing signals of the outgoing line switch, middle switch and incoming line switch of GIS; Collect the opening and closing signals of multiple adjacent switches of the outgoing line switch, middle switch and incoming line switch of GIS; The collected signal values ​​are associated with the signal points and entered into the database to form a line switch accident tripping object signal point library.

3. A voice alarm method for accident tripping of a hydropower station line switch according to claim 1, characterized in that: In step S2, the alarm level of the line switch accident tripping signal in the line switch accident tripping object signal point library is classified as follows: The action signals of multiple sets of line switch differentials, multiple sets of outgoing line switch short leads, multiple sets of incoming line switch short leads, multiple sets of incoming line switch short differentials and switch failure protection relays are regarded as low priority signals; The opening and closing signals of the outgoing line switch, the middle switch and the incoming line switch of the GIS are regarded as high priority signals; The opening and closing signals of multiple adjacent switches of the GIS outgoing line switch, middle switch and incoming line switch are used as high priority signals.

4. A voice alarm method for accident tripping of a hydropower station line switch according to claim 3, characterized in that: In step S3, the comprehensive judgment strategy for line switch accident tripping includes: For outgoing line switches, high priority signals are collected first: If the GIS outgoing line switch changes from the closed position to the open position, and all adjacent switches are in the closed position, the low priority signal will continue to be collected: The action signals of multiple sets of line switch differentials, multiple sets of outgoing line switch short leads and switch failure protection relays are collected. If at least one switch action is met, the outgoing line switch tripping signal is output.

5. A voice alarm method for accident tripping of a line switch in a hydropower station according to claim 3, characterized in that: In step S3, the comprehensive judgment strategy for line switch accident tripping includes: For the middle switch, the high priority signal is collected first: If the middle switch of the GIS changes from the closed position to the open position and all adjacent switches are in the closed position, the low priority signal will continue to be collected: The action signals of multiple sets of line switch differentials, multiple sets of outgoing line switch short leads, multiple sets of incoming line switch short leads and switch failure protection relays are collected. If at least one switch action is met, the middle switch tripping signal is output.

6. A voice alarm method for accident tripping of a line switch in a hydropower station according to claim 3, characterized in that: In step S3, the comprehensive judgment strategy for line switch accident tripping includes: For incoming line switches, high priority signals are collected first: If the incoming line switch of the GIS changes from the closed position to the open position, and all adjacent switches are in the closed position, the low priority signal will continue to be collected: The action signals of multiple sets of incoming short-difference switches, multiple sets of incoming short-lead switches and switch failure protection relays are collected. If at least one switch action is met, the incoming side switch tripping signal is output.

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