In this paper a new approach using Harmony Search (HS) algorithm is presented for placing Distributed Generators (DGs) in radial distribution systems. HS is used for multiple objective planning, to evaluate the DG placement and sizing by considering the power losses and voltage profile as objective functions. HS is operated on 12bus, 15-bus and 33-bus radial distribution system(RDS). Obtained r...

High penetration of grid-edge, inverter-based photovoltaic (PV) can cause significant voltage fluctuations not only at the distribution but also sub-transmission levels due to PV output intermittency. This paper proposes a reactive power planning tool for systems mitigate violations and caused by high intermittency with minimum investment cost. The considers all existing var assets in both redu...

Abstract The electric power industry is going through a relatively large transformation period of energy development, and new equipment such as distributed supply has emerged the times require. However, there often problem insufficient coordination between grid frame in main distribution network. This paper starts with two stakeholders, namely, generation operator system operator, to build two-...

Control of networks like those for transportation, power distribution, communication to name a few, provides challenges to planning and scheduling. Many problems can be defined in terms of a basic state space model, but more general problems require an expressive language for talking about the topology and connectivity of the system, which are outside the scope of standard planning languages. I...

Current electric utilities must achieve reliability enhancement of considerable distribution feeders with an economical budget. Thus, optimal preventive maintenance planning is required to balance the benefits and costs programs. In this research, proposed method determines time-varying failure rate each feeder evaluate likelihood future interruptions. Meanwhile, consequences interruptions are ...

The work of CIGRE Study Committee B4 covers all aspects of HVDC and Power Electronics. The work includes monitoring the performance of existing transmission systems, planning, design, testing and operational issues of the new projects. The scope of B4 addresses all the relevant target groups in the power industry interested in power electronics. Economic and environmental subjects of this techn...