Bus voltage out-of-limit voice alarm system for hydropower station regulation and control center

Abstract

A bus voltage out-of-limit voice alarm system for a hydropower station regulation and control center comprises a communication module electrically connected with a data module, a monitoring platform and a logic module are both electrically connected with the communication module, and a time delay module is electrically connected with the logic module, a loudspeaker and a man-machine interaction module; the data module collects real-time data of each bus voltage of the power plant side in real time, and triggers the loudspeaker to give an alarm when the voltage exceeds the limit. The monitoring platform can provide accurate and rapid voice alarm information for a dispatching watchman when the bus voltage of a plant station is out of limit or equipment fails.

Description

Technical Field

[0001] This utility model belongs to the field of hydropower station dispatch and control technology, and relates to a bus voltage over-limit voice alarm system for hydropower station control center. Background Technology

[0002] Hydropower station power dispatching and monitoring systems are indispensable tools for dispatchers to monitor the operation of cascade power stations and implement production command. With the successive commissioning and power generation of cascade power stations in the basin and the continuous advancement of intelligent transformation of cascade dispatching, power dispatching and monitoring systems face more application demands. In the long-term operation process, power dispatching and monitoring systems have gradually exposed problems such as insufficient applicability of the bus voltage over-limit voice alarm function module, unintelligent judgment, and untimely alarm response. Summary of the Invention

[0003] The technical problem to be solved by this utility model is to provide a bus voltage over-limit voice alarm system for the control center of a hydropower station, so that when the bus voltage of the station exceeds the limit or equipment fails, the monitoring platform can provide the dispatcher with accurate and fast voice alarm information.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: a bus voltage over-limit voice alarm system for a hydropower station control center, which includes a communication module electrically connected to the data module, a monitoring platform and a logic module electrically connected to the communication module, a delay module electrically connected to the logic module, a speaker and a human-machine interaction module; the data module collects real-time data of the voltage of each bus on the power plant side, and triggers the speaker to issue an alarm when the voltage exceeds the limit.

[0005] The data module collects real-time data of the voltage of each bus on the power plant side through the IEC104 protocol in the power plant communication server.

[0006] The logic module is set to only alarm when the voltage exceeds the limit during bus operation, and not to alarm during maintenance or shutdown.

[0007] The logic module is set to trigger an alarm when the operating requirements are met.

[0008] The logic module determines whether the busbar is under maintenance or out of service when all adjacent switches on the busbar are switched off or the frequency is less than 49 dB.

[0009] The monitoring platform is the iP9000 monitoring system. When the measured value of the bus voltage exceeds the alarm logic limit, the monitoring system will pop up an alarm signal indicating that the near-zone voltage control requirement of the branch plant has exceeded the limit.

[0010] When the measured voltage returns to the specified allowable range, the monitoring platform stops outputting alarm signals.

[0011] When the measured voltage value of the speaker exceeds the alarm logic limit, the speaker will instantly trigger the audio device to output a customized alarm tone.

[0012] When the measured voltage returns to the specified allowable range, the speaker stops outputting an audio prompt tone.

[0013] The main beneficial effects of this utility model are as follows:

[0014] Improving the reliability of bus voltage operation monitoring in power plants and substations facilitates rapid response by dispatching personnel when encountering situations such as bus voltage exceeding limits or bus faults, thus significantly enhancing the safety level of dispatching operations.

[0015] It helps to highlight relevant equipment on the alarm monitoring interface, assisting dispatchers in quickly and accurately finding and identifying abnormal situations such as bus voltage exceeding limits or bus faults, shortening the time for dispatch coordination and accident handling, reducing potential assessments, and lowering safety production risks. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0017] Figure 1 This is a system structure diagram of the present invention.

[0018] The diagram is labeled as follows: Data module 1; Communication module 2; Monitoring platform 3; Logic module 4; Delay module 5; Speaker 6; Human-computer interaction module 7. Detailed Implementation

[0019] like Figure 1 In this paper, a bus voltage over-limit voice alarm system for a hydropower station control center is disclosed. It includes a data module 1 electrically connected to a communication module 2, a monitoring platform 3 and a logic module 4 both electrically connected to the communication module 2, a delay module 5 electrically connected to the logic module 4, a speaker 6 and a human-machine interaction module 7. The data module 1 collects real-time data of the voltage of each bus on the power plant side, and triggers the speaker 6 to issue an alarm when the voltage exceeds the limit.

[0020] In a preferred embodiment, the data module 1 collects real-time data of the voltage of each busbar on the power plant side through the IEC 104 protocol in the power plant communication server.

[0021] In the preferred embodiment, the logic module 4 is configured to only trigger an alarm when the voltage exceeds the limit during bus operation, and not to trigger an alarm during maintenance or shutdown.

[0022] In the preferred embodiment, the logic module 4 is configured to trigger an alarm when the operating requirements are met.

[0023] In a preferred embodiment, the logic module 4 determines whether the busbar is under maintenance or out of service when all adjacent switches on the busbar are switched off or the frequency is less than 49 dB.

[0024] In the preferred embodiment, the monitoring platform 3 is an iP9000 monitoring system. When the measured value of the bus voltage exceeds the alarm logic limit, the monitoring system will pop up an alarm signal indicating that the near-zone voltage control requirement of the branch plant has exceeded the limit.

[0025] In the preferred embodiment, the monitoring platform 3 stops outputting alarm signals when the measured voltage recovers to the specified allowable range.

[0026] In a preferred embodiment, when the measured voltage value exceeds the alarm logic limit, the speaker 6 instantly triggers the audio device to output a customized alarm prompt tone.

[0027] In a preferred embodiment, the speaker 6 stops outputting an audio prompt tone when the measured voltage returns to the specified allowable range.

[0028] Example

[0029] The stability and safety of bus voltage are crucial for the operation of power systems. The monitoring system collects and compares the measured bus voltage values ​​per second from each branch plant with the specified bus voltage limits. When the measured bus voltage exceeds the limit, the monitoring system issues an alarm signal indicating an over-limit of the branch plant's near-zone voltage control requirements, and instantly triggers an audio alarm to intelligently output a voice prompt. When the measured bus voltage returns to within the specified limit, the alarm signal and prompt cease outputting.

[0030] (1) Data acquisition. Real-time data of the voltage of each bus on the power plant side are acquired through the IEC104 protocol in the power plant communication server.

[0031] (2) Bus voltage over-limit alarm logic design. The bus voltage over-limit alarm logic design mainly follows three points: First, the alarm will only be triggered when the bus voltage exceeds the limit during operation, and will not be triggered in other situations such as maintenance and shutdown; Second, the alarm logic must meet the national dispatch operation regulations; Third, the bus maintenance or shutdown can be determined by the fact that all adjacent switches of the bus are open or the frequency F < 49 dB.

[0032] (3) Alarm interface design. An alarm interface is customized in the iP9000 monitoring system. When the measured value of the bus voltage exceeds the alarm logic limit, the monitoring system will pop up an alarm signal indicating that the near-zone voltage control requirement of the branch plant exceeds the limit; when the measured voltage returns to the specified allowable range, the alarm signal will stop being output.

[0033] (4) Audio linkage implementation. When the measured voltage value exceeds the alarm logic limit, the audio device will output a customized alarm prompt tone instantly; when the measured voltage returns to the specified allowable range, the audio prompt tone will stop outputting.

[0034] Enhance the practicality of the bus voltage over-limit voice alarm system. When the bus voltage exceeds the limit or equipment fails, the power dispatch monitoring system can provide the dispatcher with accurate and rapid voice alarm information. This will help to highlight the relevant equipment on the alarm monitoring interface, assist the dispatcher in quickly and accurately finding and learning about abnormal situations such as bus voltage over-limit or bus faults, shorten the time for dispatch coordination and accident handling, reduce potential assessments, and lower the risk of safety production.

[0035] The above embodiments are merely preferred technical solutions of this utility model and should not be considered as limitations on this utility model. The embodiments and features described in this application can be arbitrarily combined without conflict. The protection scope of this utility model should be defined as the technical solution described in the claims, including equivalent substitutions of the technical features described in the claims. That is, equivalent substitutions and improvements within this scope are also within the protection scope of this utility model.

Claims

1. A voice alarm system for bus voltage exceeding limits in a hydropower station control center, characterized in that: It includes data module (1) electrically connected with communication module (2), monitoring platform (3) and logic module (4) are all electrically connected with communication module (2), delay module (5) is electrically connected with logic module (4), speaker (6) and man-machine interaction module (7);Data module (1) real-time data acquisition of each bus voltage of power plant side, when the voltage limit triggers the speaker (6) to send alarm.

2. The bus voltage out-of-limit voice alarm system for the hydroelectric station regulation center according to claim 1, characterized in that: The data module (1) collects the real-time data of each bus voltage of the power plant side through the iec104 protocol in the plant communication server.

3. The bus voltage out-of-limit voice alarm system for the hydroelectric station regulation center according to claim 1, characterized in that: The logic module (4) is set to alarm when the voltage of the bus operation is out of limit, and does not alarm when overhauling and stopping.

4. The bus voltage out-of-limit voice alarm system for the hydroelectric station regulation center according to claim 1, characterized in that: The logic module (4) is set to alarm when the operation regulation is met.

5. The bus voltage out of limit voice alarm system for hydroelectric station control center according to claim 1, characterized in that: The logic module (4) judges the bus maintenance or shutdown when the adjacent switch of the bus is fully divided or the frequency is less than 49 decibels.

6. The bus voltage out of limit voice alarm system for hydroelectric station control center according to claim 1, characterized in that: The monitoring platform (3) is iP9000 monitoring system, when the measured value of bus voltage exceeds the alarm logic limit value, the monitoring system pops up the substation near area voltage control requirement limit alarm signal.

7. The bus voltage out-of-limit voice alarm system for the hydroelectric station regulation center according to claim 6, characterized in that: The monitoring platform (3) stops outputting the alarm signal when the measured voltage recovers to the specified allowable range.

8. The bus voltage out of limit voice alarm system for hydroelectric station control center according to claim 1, characterized in that: The speaker (6) instantaneously links the audio device to output the customized alarm prompt sound when the measured voltage value exceeds the alarm logic limit value.

9. The bus voltage out of limit voice alarm system for hydroelectric station control center according to claim 1, characterized in that: The speaker (6) stops outputting the audio prompt sound when the measured voltage recovers to the specified allowable range.

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