Radial distribution systems reconfiguration considering power losses cost and damage cost due to power supply interruption of consumers

Abstract

Distribution system reconfiguration problem is a complex optimization process to find a structure with minimum losses in which the satisfaction of both sides, that is consumers and distribution system companies, need to be met. One of the most significant parameters in this regard is to increase the reliability of system. This parameter, on one hand, increases the satisfaction of power consumption and on the other hand, improves the economic benefits of distribution companies. Distribution system reconfiguration, considering the reliability parameters, seems to make the attempts to solve the problem of optimization difficult. In this paper, a new heuristic approach for distribution system reconfiguration in order to decrease the power losses cost and damage cost due to power supply interruption of consumers has been presented. Radial network construction and all energized nodes constraints are the most important ones that should be considered in distribution system reconfiguration problem. Hence, in this paper a new codification is proposed which is computationally efficient and guarantees to generate only feasible radial topologies all times. In order to illustrate the performance of proposed heuristic method, modified 33-bus and 119-bus distribution networks have been employed which have led to the desired results.

Multi-Objective Service Restoration of Radial Distribution System in the Presence of Non-Linear Loads

“…In this paper, two meta-heuristic optimization algorithms are applied to solve the service restoration problem. IEEE 33 bus [45] and IEEE 69 bus test systems are taken for case study. It is assumed that some priority customers are present in both the networks.…”

Optimal Placement and Sizing of Distributed Generation Sources in Distribution Networks Using SPEA Algorithm

“…The Effect of active and reactive power injection on objective functions are evaluated in the test 33-bus radial distribution network; a constant power load model has been used in the simulation. The detailed data for this system is given in table 1 in the Appendix [29]. Figure 2 illustrates the network structure of the system.…”

“…Figure 2. 33-bus test distribution system [29] A mesh plot have been used to evaluate the stability index, the total active power losses and the total reactive power losses in the 33-bus distributed network versus the location and size of both active and reactive power injection. Figure. 3 shows that the active power injection affect the stability index more than the reactive power injection and the improvement level increase as the penetration level increase.…”

“…This system functions at 11 kV nominal voltage. The detailed data for this system is given in table 3 in the Appendix [29].…”

“…Case III: Two different DGs are connected to the modified IEEE 119-node test feeder ( Figure 10) [29]. The first one is a type 3 DG with a maximum capacity of 1,9 MW and the second one is considered as a set of reactive compensators (type 4 DG) of 0.2MVA.…”