Design of benchmark of medium voltage distribution network for investigation of DG integration

Abstract

The widespread use of distributed generation (DG) relies on methods and techniques aimed at facilitating the network integration of DG. In this context a methodology for the evaluation of the quality and relative merits of these methods and techniques is missing. CIGRE Task Force C6.04.02, which is affiliated with CIGRE Study Committee C6, has addressed this problem by proposing a set of resource and network benchmarks. In the present paper, the benchmark for integrating DG in medium voltage distribution networks is described. The proposed benchmark is representative of a real network while it is also designed for ease of use.The application of the benchmark is described through several case studies that show the impact of DG on power flow and voltage profiles at the medium voltage level.

Conditions for stability of droop-controlled inverter-based microgrids

“…The qualifier "bounded" is, of course, critical, and its establishment is stymied by the presence of the linear term in θ contained in H(x) given in (33). The inclusion of this term destroys the natural topology of the system, e.g., with θ ∈ S n−1 , and we have to look at the system with θ evolving in R n−1 -which is not a bounded set.…”

“…The theoretical analysis is illustrated via simulation examples based on the three-phase islanded Subnetwork 1 of the CIGRE benchmark medium voltage distribution network [33]. The network is a meshed network and consists of 11 main buses, see Fig.…”

“…The following two modifications are made compared to the original system given in [33]: first, at bus 9b the combined heat and power (CHP) diesel generator is replaced by an inverter-interfaced CHP fuel cell (FC). Second, since the original network given in [33] stems from a distribution network connected to a transmission system, the power ratings of the generation units are scaled by a factor 4 compared to [33], such that the controllable units (CHPs, batteries, FC) can satisfy the load demand in autonomous operation mode at least during some period of time.…”

“…networks with nonzero conductances. Our analysis is validated in Section 7 with simulation examples based on the CIGRE (Conseil International des Grands Réseaux Electriques) benchmark MV distribution network [33]. The paper is wrapped-up with some conclusions and discussion of future work in Section 8.…”

A hierarchical voltage control method for multi-terminal AC/DC distribution system

“…Thus, the disadvantage of traditional AC distribution network has become more obvious [1][2][3] . Accord to the research, AC/DC distribution network is one of the optimal solution [4,5].…”