Hybrid AC/DC microgrids facilitate the procedure of DC power connection into the conventional AC power system by developing the distributed generations (DGs) technologies. The conversion processes between AC and DC electrical powers are more convenient by hybrid systems. In this paper, an energy management system (EMS) for a hybrid microgrid network is proposed due to the optimal utilization of...

This paper analyses and compares different methodologies for supporting system frequency in low inertia power systems using HVDC interconnectors. Reduced system inertia, caused by the massive integration of converter-interfaced renewables and the displacement of conventional synchronous generation, can result in high values of rate of change of frequency (ROCOF), increasing the risk of frequenc...

Accurate inertia estimates and forecasts are crucial to support the system operation in future low-inertia power systems. A large literature on estimation methods is available. This paper aims provide an overview classification of methods. The considers time horizon applicable to, i.e., offline post mortem, online real forecasting methods, scope estimation, e.g., system-wide, regional, generati...

This study examines the transient stability of low-inertia power systems with inverter-based generation (IBG) and proposes a sufficient criterion. In grids, interactions are induced between electromagnetic dynamics IBG electromechanical synchronous generator (SG) under fault. For this, hybrid IBG-SG system is established delta-power-frequency model developed. Based on this model, new mechanisms...

As an efficient alternative to fossil fuels, renewable energy sources have attained great attention due to their sustainable, cost-effective, and environmentally friendly characteristic. However, as a deficiency, renewable energy sources have low reliability because of their non-deterministic and stochastic generation pattern. The use of hybrid renewable generation systems along with the storag...

In this paper, a new hybrid routing protocol is presented for low power Wireless Sensor Networks (WSNs). The new system uses an integrated piezoelectric energy harvester to increase the network lifetime. Power dissipation is one of the most important factors affecting lifetime of a WSN. An innovative cluster head selection technique using Cuckoo optimization algorithm has been used in the desig...

This paper investigates the implementation and application of multi-variable grid-forming hybrid angle control (HAC) for high-power converters in transmission grids. We explore system-level performance robustness HAC concept contrast to other schemes i.e., power-frequency droop matching controls. Our findings suggests that, similar ac-based control, enhances small-signal frequency stability low...

-In haptic devices the problem of major concern is the inertia offered by the haptic device. When using it in unconstrained space, it should offer the least inertia. Depending on the interaction mechanism we are required to adapt different control algorithms to maintain transparency. This paper investigates force feedback method of inertia reduction and analyses its advantages over the feed for...