A new approach stemming from the adiabatic-connection (AC) formalism is proposed to derive parameter-free double-hybrid (DH) exchange-correlation functionals. It is based on a quadratic form that models the integrand of the coupling parameter, whose components are chosen to satisfy several well-known limiting conditions. Its integration leads to DHs containing a single parameter controlling the...

This publication presents the results of a series of laboratory investigations on the DC ion current coupling between nearby AC and DC conductors, which is an important consideration in the design of hybrid AC/DC transmission towers. The corona activity depends on the surface condition of the conductor. Whether or not the conductors produced corona was controlled by selectively wetting them. Th...

Since the limited power capacity, finite inertia, and dynamic loads make the shipboard power system (SPS) vulnerable, the automatic reconfiguration for failure recovery in SPS is an extremely significant but still challenging problem. It is not only required to operate accurately and optimally, but also to satisfy operating constraints. In this paper, we consider the reconfiguration optimizatio...

Aiming at the problems of transient over-current and over-voltage in switching process AC/DC hybrid microgrid grid-connected mode island mode, which leads to sudden change transmission power seriously affects quality. In this paper, an improved seamless control strategy droop with disturbance observer is designed. The main work as follow: according diffident calculation methods adaptive realize...

Abstract This paper proposes a new software design method of dynamic equivalents for the AC/DC hybrid power system. First, some critical issues grid have been intensively investigated. Then, in consideration function requirements, this builds general framework equivalent software, which follows routine separateness modules and data switching, flexible extensibility. Finally, tool is developed w...