Power network load rapid balance adjusting system and control method thereof

Abstract

The invention discloses a power network load rapid balance adjusting system and a control method thereof. The power network load rapid balance adjusting system comprises a local power network and a power distribution unit and also comprises an electricity consumption information collection unit, a control unit, a bidirectional AC / DC conversion unit, a rapid electric energy storage unit and a dry type load. The bidirectional AC / DC conversion unit can rapidly switch the flow direction of electric energy based on needs. The rapid electric energy storage unit can rapidly store and output electric energy. The dry type load can supplement the capacity of the rapid electric energy storage unit. The cost is reduced. With the adoption of the system and the control method thereof, superfluous electric energy can be rapidly transmitted to the rapid electric energy storage unit and the dry type load for buffering or electric energy stored in the rapid electric energy storage unit can be instantly released when output power of the local power network instantly changes, so that the object of stabilizing the output power and the working state of the local power network is achieved, the secure operation of the local power network and power consumer equipment can be ensured, and advantages of energy conversation, high efficiency, environment protection and reliability can be achieved.

Description

technical field [0001] The invention belongs to the technical field of power grid load regulation systems, and relates to a power grid load fast balance regulation system and a control method thereof. Background technique [0002] For some production enterprises with large electricity consumption and heavy industrial enterprises with large-capacity electrical equipment, such as oil drilling platforms, oil refineries, cement plants, etc., when suddenly connecting or throwing off large-capacity loads, it will cause local Large changes in grid voltage, frequency and other parameters will reduce power quality and even cause tripping. In some production enterprises, this situation will often occur, seriously affecting the normal production of the factory and the safety of electricity use. The existing power grid The load regulation scheme has a low degree of automation and a slow response speed, and cannot achieve an effective balance between the load regulation response speed an...

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Problems solved by technology

[0002] For some production enterprises with large electricity consumption and heavy industrial enterprises with large-capacity electrical equipment, such as oil drilling platforms, oil refineries, cement plants, etc., when suddenly connecting or throwing off large-capacity loads, it will cause local Large changes in grid voltage, frequency and other parameters will reduce power quality and even cause tripping. In some production enterprises, this situation will often occur, seriously affecting the normal production of the factory and the safety of electricity use. The existing power grid The load regulation scheme has a low degree of automation and a slow response speed, and cannot achieve an effective balance between the load regulation response speed and the grid capacity

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