Yoshifumi Zoka

TL;DR: In this article, an optimal allocation method for flexible ac transmission system (FACTS) devices for market-based power systems considering congestion relief and voltage stability is presented, which accurately evaluates the annual cost and benefits obtainable by FACTS devices installation by formulating a large scale optimization problem that contains power flow analyses for a large number of system states representing annual power system operations.

TL;DR: In this paper, an interaction problem that might be induced from various kinds of distributed generators installed in a microgrid is investigated. But the authors focus on the problem of mutual oscillation.

TL;DR: In this article, a new economic load dispatch (ELD) method is proposed in order to make the best use of the ramp-rate capability of existing generators to cope with the disturbances caused by loads as well as by renewable energy generations.

TL;DR: In this paper, the authors proposed a method for the economic evaluation of an autonomous independent network of distributed energy resources called Microgrid Microgrid is a new framework of power delivery system that is formed by small, modular generation systems connected to each other to create a small autonomous grid.

TL;DR: In this paper, a new voltage control scheme for distribution networks based on a multi-agent system is proposed, where large voltage fluctuations caused by PV generations are effectively regulated by adjusting the conventional types of tap-changing controllers.