2 results about "Multi level systems" patented technology

The invention belongs to the technical field of electronic power, and particularly relates to a hardware protection circuit of a multi-cascade power system and a fault response method, and the circuit comprises a main controller, a plurality of fault signal generation branches, a public hardware fault bus and a plurality of isolation control branches. Each isolation control branch is composed of an optical coupling isolator and a switch tube, receives a fault signal of the corresponding subunit, and drives a common fault bus level to change. And the main controller detects the bus state in real time through hardware interruption, and directly triggers a protection action. Through hardware interconnection and electrical isolation design, microsecond-level fault response under a multi-level system is achieved, the defects that a traditional software protection mode is high in delay, and ground potentials among multiple levels are inconsistent and difficult to isolate are overcome, and the reliability and safety of a complex power system are remarkably improved.

A technique for inventory optimization using a simulated service model is provided. In one technique, a first optimization technique is used to generate a first output based on demand data, comprising a first plurality of output values, each corresponding to a node in a multi-level system. While using the first optimization technique, a plurality of variable values ​​are generated, each corresponding to a node in the multi-level system. Then, a second optimization technique, different from the first optimization technique, is used to generate a second output based on the demand data and the plurality of variable values, comprising a second plurality of output values, each corresponding to a node in the multi-level system.