Optimization and application of control strategy for remote standby automatic transfer system with two-station tandem supply structure
This paper proposes a control strategy for a remote standby automatic transfer system to enhance the power supply security of small-scale distribution networks with a two-station single-chain power supply structure.This strategy is based on a peer-to-peer communication control mode without a master,utilizing millisecond-level real-time interaction information to automatically identify open points,locate faults,rapidly isolate faults,disconnect small power sources,restore power supply,and automatically identify and lock out load-shedding from the stable system.It also leverages the unified low-voltage standardized device hardware from the State Grid Corporation without changing the definition of the interface,such as input,output,analog,and power,while adding a dedicated communication module to the CPU board.This model reduces cost and facilitates on-site construction and upgrade transformations.Both RTDS simulation tests and field applications verify the effectiveness of this control strategy,offering insights into similar studies for other regions with comparable grid structures.
remote automatic bus transfer systemsingle-chain power supply structurecontrol strategysimulation test
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