Abstract
This paper evaluates meta-heuristic and deterministic approaches for distribution network voltage control. As part of this evaluation, a novel meta-heuristic algorithm, Cuckoo Search, is applied for distribution network voltage control and compared with a deterministic voltage control algorithm, the oriented discrete coordinate decent method (ODCDM). ODCDM has been adopted in a state-of-the-art industrial product and applied in real distribution networks. These two algorithms have been evaluated under a set of test cases, which were generated to represent the voltage control problems in current and future distribution networks. Sampled test results have been presented, and findings have been discussed regarding the adoption of different optimization algorithms for current and future distribution networks.
Highlights
Voltage control is expected to become increasingly difficult in future distribution networks due to the proliferation of renewable generation and other unplanned low carbon technologies (LCT) [1].Various architectures and algorithms have been proposed for voltage control
The voltage control problem was formulated as a mixed integer nonlinear optimization problem (MINLP), and network loss minimization was defined as the optimization objective
It was found that there were no significant differences between the results achieved by both algorithms, in terms of network loss minimization
Summary
Various architectures and algorithms have been proposed for voltage control These architectures can be broadly categorized as either centralized or distributed control architectures, both of which could provide solutions for future voltage control problems [2]. Various optimization algorithms have been proposed in previous research to solve voltage control problems, which can be classified as deterministic or metaheuristic algorithms [3]. The voltage control problem was formulated as a mixed integer nonlinear optimization problem (MINLP), and network loss minimization was defined as the optimization objective. In [5], the oriented coordinate descent method (ODCDM) was applied to solve the distribution network voltage control problem. Some of them have been successfully implemented within real distribution networks, such ODCDM [6] They can only guarantee local optimal solutions for non-convex optimization problems [3]. They are not designed for mixed-integer problems, Energies 2017, 10, 1138; doi:10.3390/en10081138 www.mdpi.com/journal/energies
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