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Local control unit processor-based control method for hydropower station unit

A technology of on-site monitoring and control methods, applied in the field of automation, can solve problems such as national and collective losses, waste of resources, environment, and inability to use resources, and achieve the effects of high automation integration, small investment, and flexible application

Inactive Publication Date: 2015-12-09
STATE GRID CORP OF CHINA +2
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  • Abstract
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Problems solved by technology

However, these hydropower plants generally cannot use the original resources for transformation, but need to re-purchase a complete set of automation equipment to realize the automatic quasi-synchronization function of the units
The cost of transformation is huge, and the direct abandonment of original resources has also caused a great waste of resources and serious damage to the environment, bringing irreparable losses to the country and the collective

Method used

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  • Local control unit processor-based control method for hydropower station unit

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Embodiment Construction

[0017] Such as figure 1 As shown, this hydropower unit is based on the control method of the on-site monitoring unit, and the multi-functional power meter is connected to the on-site monitoring unit through a communication channel. The control method includes the following steps:

[0018] (1) The on-site monitoring unit enters the ready state after being powered on, and enters the standby state when the power supply is normal;

[0019] (2) On-site monitoring unit and communication channel conduct status self-inspection;

[0020] (3) Read in data: read the current data of the multifunctional power meter into the register of the local monitoring unit, and reach the standard initial state after processing. The current data includes voltage amplitude condition data, frequency data, and phase angle data;

[0021] (4) Data processing and judgment of voltage amplitude conditions;

[0022] (5) Frequency data processing and judgment;

[0023] (6) Phase angle data processing and judg...

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Abstract

The invention discloses a local control unit processor-based control method for a hydropower station unit. A multifunctional electric power meter is connected with a local control unit processor through a communication channel; and the control method comprises the following steps: (1) entering the local control unit processor into a ready condition after electrifying, and entering a standby starting state after power supply is normal; (2) carrying out state self-inspection on the local control unit processor and the communication channel; (3) reading data, namely reading current data of the multifunctional electric power meter into a register of the local control unit processor, and reaching the standard initial state after processing, wherein the current data comprise voltage amplitude condition data, frequency data and phase angle data; (4) carrying out voltage amplitude condition data processing and judging; (5) carrying out frequency data processing and judging; (6) carrying out phase angle data processing and judging; (7) carrying out integrated processing; (8) carrying out outputting; (9) connecting a grid; and (10) finishing actions, and restoring the state into the initial state.

Description

technical field [0001] The invention relates to the technical field of automation, in particular to a control method based on an on-site monitoring unit for a hydropower station unit. Background technique [0002] At present, in order to meet the relevant requirements of the State Grid Corporation of China for the full realization of intelligent substation equipment in the 12th Five-Year Plan, conventional hydropower plants must undergo automation technology transformation. However, these hydropower plants generally cannot use the original resources for transformation, but need to re-purchase a complete set of automation equipment to realize the automatic quasi-synchronization function of the units. The cost of transformation is huge, and the direct abandonment of original resources has also caused a great waste of resources and serious damage to the environment, bringing irreparable losses to the country and the collective. Contents of the invention [0003] In order to ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J3/38H02J13/00
CPCY02E40/70Y04S10/12
Inventor 袁参李延明邱轶清齐世平胡育松宁宇牛志伟
Owner STATE GRID CORP OF CHINA
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