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An intelligent monitoring method and system for an unattended hydropower plant

A hydropower plant, intelligent technology, applied in circuit devices, electrical components, etc., can solve problems such as the inability to complete comprehensive equipment diagnosis and analysis, and achieve the effect of reducing daily workload, avoiding accidental downtime, and improving success rate

Active Publication Date: 2019-11-05
HUANENG LANCANG RIVER HYDROPOWER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the equipment data monitoring system in the power station includes computer monitoring system, unit status monitoring system, main transformer online monitoring system, generator partial discharge monitoring system, chromatographic analysis system, environmental monitoring system, etc., but they are relatively independent systems. Unable to complete the equipment comprehensive diagnosis and analysis function under the high-level management mode of the power station

Method used

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  • An intelligent monitoring method and system for an unattended hydropower plant
  • An intelligent monitoring method and system for an unattended hydropower plant
  • An intelligent monitoring method and system for an unattended hydropower plant

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Embodiment 1

[0065] As shown in the figure, the intelligent monitoring method for an unattended hydropower plant provided in this embodiment includes the following steps:

[0066] S1: Obtain the working state signal of the generator set: when the governor guide vane is fully closed, the speed is zero, and the generator outlet circuit breaker GCB is in the position, the computer monitoring system determines that the generator set is in a shutdown state; when the speed of the generator set is greater than 95% When the rated speed, the terminal voltage of the machine is greater than 85% of the rated voltage, and the generator outlet circuit breaker GCB is closed, the computer monitoring system determines that the generator set is in the power generation state; the computer monitoring system transmits the determined status of the generator set to the intelligent monitoring disk system.

[0067] S2: Judging the state of the generator according to the working state signal of the generator set. T...

Embodiment 2

[0103]As shown in the figure, this embodiment provides an intelligent monitoring system for unattended hydropower plants, which aggregates and integrates the data of each subsystem, realizes automatic generation of operation and maintenance production reports, automatic analysis of the operation status of important auxiliary equipment, and the process of unit startup and shutdown. Automatic statistics of the time used in each link in the process, automatic early warning of the trend of the whole plant's measuring points, and notification of maintenance personnel by phone and text messages. Reduce the workload of maintenance personnel and lay the foundation for the realization of "unmanned duty".

[0104] The intelligent disk monitoring system of an unattended hydropower plant provided in this embodiment includes an intelligent data analysis host, an intelligent disk monitoring display server, a data aggregation communication machine, an optical fiber disk array, and a human-com...

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Abstract

The invention discloses a method for intelligent monitoring an unattended hydropower plant. The method comprises the following steps of first, determining a power generation state fixed value and a shutdown state fixed value of a generator set; obtaining a working status signal of the generator set; and then determining the power generation state and shutdown state of the generator according to the working status signal of the generator set, and obtaining and storing the time used when the generator sets start and stop during startup and shutdown process of the generator set; and finally determining whether the generator set runs properly during the startup and shutdown process according to the power generation state fixed value and the shutdown state fixed value, and producing alarm information according to the power generation state fixed value and the shutdown state fixed value. According to the method and system for intelligent monitoring the unattended hydropower plant, the security of a computer monitoring system can be ensured and the secondary safety protection requirements of a power system are met, the daily workload of operation and maintenance personnel is greatly reduced, the startup and shutdown process of the generator set is monitored automatically and effectively, and the problem existing in the generator set during the startup and shutdown process is warned in advance, so as to improve the success rate of automatic startup and shutdown of the power plant and provide a strong guarantee for the unattended and remote monitoring operation mode of the hydropower plant.

Description

technical field [0001] The invention relates to the field of hydropower plant monitoring, in particular to an intelligent monitoring method and system for an unattended hydropower plant. Background technique [0002] With the increase of single unit capacity and total installed capacity of hydropower stations, the technical requirements for the operation, maintenance and fault handling of ultra-large hydropower station units are getting higher and higher, which is more difficult and risky. Operation, maintenance and management personnel need to monitor a lot of equipment parameters. The computer monitoring system is mainly responsible for the real-time online monitoring of the entire power station equipment, and completes the closed-loop real-time control of the power station. It does not have perfect production data analysis, equipment operation status prediction, and telephone notification. And human-computer interaction to obtain information function. [0003] At present...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J13/00
CPCH02J13/0086
Inventor 鲁俊兵张洪涛乔进国胡丰陈映喜纪正堂齐巨涛曹一凡李锐奎王远洪张卫民胡金飞张会军杨定祥王海涛李春露平金伟张李小璟陈川周俊衫辉金荣崔光云贺飞代文龙李义刚曾阳麟
Owner HUANENG LANCANG RIVER HYDROPOWER