Distributed Control for Optimal Economic Dispatch of a Network of Heterogeneous Power Generators
- 5 April 2012
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Transactions on Power Systems
- Vol. 27 (4), 1750-1760
- https://doi.org/10.1109/tpwrs.2012.2188048
Abstract
In this paper, we present a simple, distributed algorithm for frequency control and optimal economic dispatch of power generators. In this algorithm, each generator independently adjusts its power-frequency set-points of generators to correct for generation and load fluctuations using only the aggregate power imbalance in the network, which can be observed by each generator through local measurements of the frequency deviation on the grid. In the absence of power losses, we prove that the distributed algorithm eventually achieves optimality, i.e., minimum cost power allocations, under mild assumptions (strict convexity and positivity of cost functions); we also present numerical results from simulations to compare its performance with traditional (centralized) dispatch algorithms. Furthermore, we show that the performance of the algorithm is robust in the sense that, even with power losses, it corrects for frequency deviations, and, for low levels of losses, it still achieves near-optimal allocations; we present an approximate analysis to quantify the resulting suboptimality.Keywords
This publication has 22 references indexed in Scilit:
- Economic dispatch using simplified personal best oriented particle swarm optimizerPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2008
- Distributed Price-based Optimal Control of Power Systems2007 IEEE International Conference on Control Applications, 2007
- Online Solving Of Economic Dispatch Problem Using Neural Network Approach And Comparing It With Classical MethodPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2006
- Microgrids in the evolving electricity generation and delivery infrastructurePublished by Institute of Electrical and Electronics Engineers (IEEE) ,2006
- Controlling power systems with price signalsDecision Support Systems, 2005
- Power System Control Centers: Past, Present, and FutureProceedings of the IEEE, 2005
- Be prepared!IEEE Industry Applications Magazine, 2003
- A fuzzy dissolved gas analysis method for the diagnosis of multiple incipient faults in a transformerIEEE Transactions on Power Systems, 2000
- A review of recent advances in economic dispatchIEEE Transactions on Power Systems, 1990
- Homeostatic Utility ControlIEEE Transactions on Power Apparatus and Systems, 1980