The operation of distribution networks with wide-scale, actively managed, distributed energy resources (DERs) has generated a demand for more sophisticated study tools, development aids, and test facilities to analyse technical operational issues related to the bi-directional power flow on distribution networks. This study discusses the challenges of modelling large distribution networks, characterised by tightly coupled transmission lines, unbalanced phase loads, and power electronic interfaced generating sources, on a real-time simulator. The test system used in this work is the IEEE 123 Node Test Feeder and is modelled in the Distribution Mode of the RTDS®. The steady-state results are compared against a non-real-time simulation tool and the published IEEE data to validate the accuracy of the modelling approach taken. The use of real-time simulators for control and power hardware in the loop applications for large distribution networks integrated with DERs is presented.
M. Dyck and O. Nzimako, "Real-time simulation of large distribution networks with distributed energy resources," in CIRED - Open Access Proceedings Journal, vol. 2017, no. 1, pp. 1402-1405, 10 2017, doi: 10.1049/oap-cired.2017.0423.
KEYWORDS: distributed power generation, distribution networks, load flow