Black start control system and method for excitation system of pumped storage power station

A technology of pumped storage power station and excitation system, which is applied in the direction of control system, control generator, electrical components, etc., can solve the problem of not being able to start power generation automatically, and achieve the effect of high reliability, good safety, and easy positioning

Active Publication Date: 2016-10-12
STATE GRID CORP OF CHINA +2
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The present invention aims to solve the problem that the existing hydro-generator cannot be automatically started to generate electricity after it is shut down due to a failure, and provides an automatic black start of the hydro-generator within a specified time after the hydro-generator is shut down due to a

Method used

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  • Black start control system and method for excitation system of pumped storage power station
  • Black start control system and method for excitation system of pumped storage power station
  • Black start control system and method for excitation system of pumped storage power station

Examples

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Example Embodiment

[0033] Example, black start control device for excitation system of pumped storage power station, see figure 1 , figure 2 , image 3 As shown, it includes a backup power supply, a monitoring system, an excitation system, and a hydroelectric generator. The backup power supply, the excitation system and the hydroelectric generator are respectively connected to the monitoring system, and the backup power supply and the hydroelectric generator are respectively connected to the excitation system. . An address encoder and a rotational speed sensor are arranged on the water turbine, and the address encoder and the rotational speed sensor are respectively connected with the monitoring system.

[0034] The excitation system includes switch K1, switch K2, switch K3, switch K4, switch K5, switch K6, relay J1, relay J2, relay J3, relay J4, relay J5, relay J6, relay J7, relay J8, excitation contactor C2 , De-excitation switch, de-excitation switch closing coil, excitation AC switch, excitati...

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Abstract

The invention discloses a black start control system and method for the excitation system of a pumped storage power station and relates to the technical field of hydropower station black start. The black start control system and method solve a problem that a hydraulic generator can be automatically black started within preset time after being stopped by faults so as to rapidly restore the power supply of a power system, and are high in reliability and good in safety. The black start control system comprises a standby power supply, a monitoring system, an excitation system, and a hydraulic generator. The standby power supply, the excitation system, and the hydraulic generator are connected with the monitoring system. The standby power supply and the hydraulic generator are connected with the excitation system. After the power system powered by the hydraulic generator is subjected to power outage, a generator set with a black start capability is started to generate power and further drive the hydraulic generator without a black start capability to generate power, thereby gradually restoring the whole power system.

Description

Technical field [0001] The invention relates to the technical field of black start of a hydropower station, in particular to a black start control device for an excitation system of a pumped storage power station and a control method thereof. Background technique [0002] Existing hydro-generators are generally not equipped with a black start device that can automatically start after shutdown. When the hydro-generator is shut down due to a failure, it is necessary to manually go to the site of the hydropower station to start each hydro-generator, resulting in a power outage Later, the power system cannot be restored in time, the power restoration speed is slow, the efficiency is low, and the reliability is poor, which has a greater impact on production and life. Therefore, it is very necessary to design a control device that can automatically restore power supply within a set time after the hydro-generator is stopped. Summary of the invention [0003] The present invention is to ...

Claims

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Application Information

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IPC IPC(8): H02P9/08H02P101/10
CPCH02P9/08H02P2101/10
Inventor 陈灵峰邸海燕郑树青戴建军
Owner STATE GRID CORP OF CHINA
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