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Hydropower station unit water inflowing control method

A water inflow control and hydropower station technology, applied in the field of automation, can solve problems such as single control mode and inability to quickly close the gate, and achieve the effect of a safe water pressure increase rate

Active Publication Date: 2014-02-05
STATE GRID CORP OF CHINA +2
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In the vicious and particularly serious accident at the Sayano-Shushensk Hydropower Station in Russia, the water intake control system of the unit only used one control unit, so the control method was single. When the control unit failed, the gate could not be closed quickly in an emergency

Method used

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  • Hydropower station unit water inflowing control method

Examples

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Comparison scheme
Effect test

Embodiment Construction

[0017] Such as figure 1 As shown, the water intake control method of this hydropower unit includes the following steps:

[0018] (1) After the system is powered on, it enters the ready state, and when the power supply is normal, it enters the standby environment;

[0019] (2) Self-inspection of equipment hardware and communication channel status;

[0020] (3) Read the initial state of the data: read the current data of the external device into the register, and reach the standard initial state after being processed by the program;

[0021] (4) Fault detection: Make a logical judgment on the initial standard state quantity, and distinguish the problematic situation. If it is a general fault, perform step (5); if it is a serious fault, perform step (9);

[0022] (5) Instruction reception: detect and distinguish the source of the instruction;

[0023] (6) Distinguish the operation mode. If it is on-site, after the sign enters the on-site mode, start the on-site logic function,...

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Abstract

The invention discloses a hydropower station unit water inflowing control method which includes the steps that (1) a system enters a preparation state after being powered up, and after a power supply is normal, the system enters a standby environment; (2) self-inspection of the state of equipment hardware and communication channels is carried out; (3) a data initial state is read in; (4) failure detection is carried out, if a failure is common, the step (5) is carried out, and if the failure is serious, the step (9) is carried out; (5) instructions are received, and the sources of the instructions are detected and distinguished; (6) operating modes are distinguished, if the operating mode is achieved on site, the step (7) is carried out, and if the operating mode is carried out in a distant place, the step (7) is carried out; (7) a gate is opened and a mechanism operates; (8) whether the openness reaches a set value is detected; (9) the instructions are reset and execution motions are stopped; (10) the method is finished.

Description

technical field [0001] The invention belongs to the technical field of automation, and in particular relates to a method for controlling water intake of a hydropower station unit. Background technique [0002] In the vicious and particularly serious accident at the Sayano-Shushensk Hydropower Station in Russia, the water intake control system of the unit used only one control unit, so the control method was single. When the control unit failed, the gate could not be closed quickly in an emergency. Contents of the invention [0003] The technical problem of the present invention is: to overcome the deficiencies of the prior art, to provide a method for controlling the water intake of hydropower station units, which uses two sets of control units, and when one set of control units fails, the other set of control units can still reliably and quickly Close the gate to ensure a safe water pressure rise rate when the gate is dropped quickly, and observe the operating status of t...

Claims

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Application Information

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IPC IPC(8): G05B9/03
Inventor 袁参齐世平李延明
Owner STATE GRID CORP OF CHINA
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