On Conceptual Structuration and Coupling Methods of Co-Simulation Frameworks in Cyber-Physical Energy System Validation

Abstract

Co-simulation is an emerging method for cyber-physical energy system (CPES) assessment and validation. Combining simulators of different domains into a joint experiment, co-simulation provides a holistic framework to consider the whole CPES at system level. In this paper, we present a systematic structuration of co-simulation based on a conceptual point of view. A co-simulation framework is then considered in its conceptual, semantic, syntactic, dynamic and technical layers. Coupling methods are investigated and classified according to these layers. This paper would serve as a solid theoretical base for specification of future applications of co-simulation and selection of coupling methods in CPES assessment and validation.

Integration of SCADA services in cross-infrastructure holistic tests of cyber-physical energy systems

“…In the framework of a holistic test implementation, however, both need to be taken into account to fully assure the semantic coherence. As for the testsemantics in CPES, the testing description standard TTCN-3 [5] and the 62559 template from SGAM model [15] are notable options. However, no automated process has been registered up to now.…”

“…Researchers have come up with some innovative approaches to overcome these challenges: e.g. cosimulation to investigate the interconnection of domains from a global point of view [3]- [5], hardware-in-the-loop (HIL) where a real hardware is integrated to the validation framework to consider the realistic behaviour of such hardware and its impact to the system [6], [7], hybridsimulation [8], integration of HIL to co-simulation [9]. These approaches can be implemented either in a single platform or by coupling several complementary platforms in a crossinfrastructure manner [10], [11].…”

Cross-infrastructure holistic experiment design for cyber-physical energy system validation

“…In fact, the HIL interface is located intra-platform while best effort interconnection is established between the simulators and the cloud server. From then, the user has the capability to configure the test accordingly by using real-time connections or using a formalism wrapping technique such as waveform relaxation method [10]. Another option is using a common message "hub" to govern exchanged signals and to route the messages.…”

Assessment of Methods for the Real-Time Simulation of Electronic and Thermal Circuits

“…Such simulation processes often describe multiphysics systems of great complexity, composed by subsystems with very different behavior and physical properties. This task can be performed in an efficient way by means of co-simulation schemes, integrating the dynamics of each subsystem with its own dedicated solver, and coupling these through the exchange of a limited set of input and output variables [2][3][4][5]. This is the case of test benches in the automotive industry, in which physical components of a vehicle are interfaced to an RT simulation of the overall system, which may include mechanical, thermal, electronic, or hydraulic effects, as well as interactions with the driving environment.…”