Stable-control load shedding method based on electrolytic aluminum control characteristics

Abstract

The invention provides a stable-control load shedding method based on electrolytic aluminum control characteristics and relates to the field of electric systems and automatic control. In order to solve the problems that a safe stable control system of a power grid cannot shed a part of load generated by electrolytic aluminum to cause load over-shedding and electric safety accidents, the stable-control load shedding method disclosed by the invention is provided. The method disclosed by the invention comprises the steps: calculating sheddable rectifier unit number sections and sheddable load sections of an electrolytic actuating station; collecting all rounds of sheddable load and the total amount of a public actuating station; detecting whether elements have fault and calculating the totalamount of load to be shed; comparing the total amount of the load to be shed with sheddable load sections of the electrolytic aluminum and executing stable-control measures. The method disclosed by the invention can be applied to safe stable control configuration and strategy researches of the power grid, provides reference for stable-control load shedding systems related to electrolytic aluminumpower consumption load and meanwhile is suitable for designs of electrolytic aluminum automatic control systems.

Description

technical field [0001] The invention relates to the field of electric power system and automatic control, in particular to a steady control load shedding method based on the control characteristics of electrolytic aluminum. Background technique [0002] Order No. 599 of the State Council "Regulations on Emergency Response and Investigation and Handling of Electric Power Safety Accidents" (hereinafter referred to as the "Regulations") clarified that the load shedding of the stability control system is equal to the load loss due to failure. It will also trigger the "Regulations", and the power production and operation unit shall bear the corresponding responsibility for power safety accidents. The current stable control load shedding control is configured according to specific operating conditions. When the total load in the area is large and the load shedding unit is small, it will not cause regional power accidents after load shedding; When the load unit load is large, espe...

AI Technical Summary

Problems solved by technology

Due to the large power load of electrolytic aluminum and the high reliability of power supply, if the load of the whole electrolytic aluminum plant is cut off, not only will there be economic losses caused by the power outage of the whole plant, but it will also cause load overload and power safety accidents

At home and abroad, there is no uniform and effective method for partial load shedding of electrolytic aluminum. For electrolytic aluminum plants that have been built, operating units often adopt passive defense measures such as operation mode control and accident filing, which greatly affects the flexibility of the normal operation of the power grid.

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