Search

This paper, based on the Northeast Asia (NEA) power system interconnection, presents an integration of renewable generation (RG), demand response (DR) or distributed generation (DG), high-voltage direct-current (HVDC), and nuclear power plant load-following operation under Smart Grid (SM) in the South Korean power system. The reliable power system depends on considering the reliability that affect after the system is connected or disconnected. The land-to-land power system interconnection in NEA countries will use as the back to back (BTB) technique for power transmission lines; whereas the point-to-point (PTP) will be used for over-sea interconnection, such as a Jeju Island and South Korea-Japan submarine transmission. In this paper, we will suggest how to design and analyze the operation mechanism/algorithm of the reliability side for the NEA, and an integration of RG, DR, HVDC, and nuclear power plant load-following operation under SM in the South Korean power system. Also, we present an inter-area power flow map for a power flow analysis for NEA countries to relieve the possible future power imbalances within the metropolitan areas or the southeastern area of Korea.

In this paper, a virtual power system simulator (VPSS) using a virtual power plant (VPP) concept is introduced. VPSS efficiently emulates power system operations and electricity transactions in order to protect the access to future electricity markets utilizing the power system interconnections in Northeast Asia (NEA). This paper introduces methods on how to structure and operate the operative mechanism and the simulator design for these proposed inter-regional interconnections in the NEA. The inter-regional power system interconnection structure is expressed by using an interregional scenario performed by the Integrated Inter-Regional Transmission Organization (IIRTO). In these NEA countries, electric power bidding scenarios and price signal scenarios are options that are able to be defined by one VPSS based on the IIRTO parameters.

These days energy demand is gradually increasing around the world. Even though the electric power efficiency has been continuously improved, limited energy resources and the shortage of land to construct generators are still unsolved problems. Also, there are environmental limitations such as the Kyoto-Protocol. There is a lot of research to deal with those things. National-wide cooperation is progressing on this research. Trades among energy-rich nations and energy-poor nations are a reasonable answer to meet the demands. Power system interconnection gives eco-friendly energy' applications and a flexible operating power system. This paper is focused on a scheme for an interconnected power system based on the economic side. It is mainly to discuss the power system market dynamics algorithm illustrated over a separate market structure.

Many electric power suppliers are suffering from huge losses due to higher cost related to generation of resources, especially fossil fuel. Many ideas have been proposed to renovate the price distortion in the electricity market. Among these ideas, smart metering system has been considered as an effective method for improving the pattern in power consumption of energy consumers thus reducing the financial burden of electricity companies. In this paper, we reviewed smart metering system of other countries and explained our development of smart metering system specialized for Korean residential environments. With this developed system, we have conducted a pilot demonstration for 2 months in the winter season Dec. 2008 to Feb. 2009. 77 various sized households in two different cities volunteered to participate in this demonstration. During this demonstration, our study focused on verifying the effectiveness of IHD (In-Home Display) which is an essential component of Korean smart metering system. The result of this demonstration is also included in this paper.