Distribution grid reconfiguration through Simulated Annealing and Tabu Search
When it comes to improving the power losses and the economic reliability indicators of an active distribution grid, the network reconfiguration is one of the most encountered solutions. Many algorithms are appropriate to carry out such an operation. A good comparison from the point of view of the results and computation performance can be made when Simulated Annealing and Tabu Search are used. Thus in this work the network reconfiguration of a system with 3 supply points and 16 consumer nodes through Tabu Search and Simulated Annealing will be introduced.
Analog Intellectual Property Cores design is still under study [1, 2]. The precharacterized cell libraries concept cannot be applied because the devices (transistors, capacitors, resistors,...) are electrically sized regarding a specific context. Thus, the trend is to develop reusable generators. To guarantee a reusable and fast placement, slicing tree floorplan can be used. Considering a particular electrical sizing and a specific process, the analog devices may occupy a wide range of shapes because of folding. Finding the correct aspect ratio for each device which optimizes the placement under a specific height and/or width constraint may lead to examine a high number of cases. This paper presents a general placement method to manage rectangular objects with varying aspect ratio. This approach allows hierarchical layout-aware electrical sizing of analog circuits.