GRID SERVICE MODEL FOR REAL TIME ECONOMIC LOAD DISPATCH
R Ramesh, V. Ramachandran · Iranian journal of electrical and computer engineering · 2007
The main objective of this paper is to develop a distributed model using grid environment through which the economic load dispatch solutions of multi-area power systems can be obtained continuously. Grid computing is a viable solution in order to exploit the enormous amount of computing power available across Internet to solve large interconnected power system problems. A grid service model is proposed for economic load dispatch, which provides the solutions at specific intervals of time. The proposed model is designed in such a way that any node in the grid can provide the economic load dispatch (ELD) solution. The node which serves as a server node at a specific instance in the grid can obtain the power system data from other client grid nodes and responds with economic load dispatch solutions. The proposed model is highly distributed and has inherent features of scalability, reliability and also uses all available computing power, hence economic feasibility of analyzing power system problems was taken care implicitly. HE POWER system and control need huge volume of data and hence a new approach is required to enable the power system data to be processed, analyzed and interpreted by different power system clients. The power system economic dispatch problem is dealt with determination of optimal combination of power outputs for all generating units, which minimizes the total fuel cost while satisfying the operational constraints. Existing power system simulations are primarily desktop applications with a small number of exceptions implemented on parallel processing computers. The existing Web enabled models for power system operations are mainly concerned with exchange of information and do not provide a reliable environment to solve power system problems (1). The exchange of computing power is inherent in the grid environment and hence quicker and fault tolerant models can be proposed for solving power system problems. In the proposed Grid Service model for solving power system problems, an attempt is made to create a grid environment for solving economic load dispatch problem in which the grids are clusters of interconnected computers that can collectively provide quicker access to very large power system data.