I'm looking for a subject for my research that involves the SST isolation transformer, so I'm looking for some points that might guide it
SSTs are seen as key components of a smart grid. However, several challenges could potentially limit their applicability in distribution grids. Few are mentioned herein. Firstly, it is found that SSTs are less efficient than low-frequency transformers (LFTs), yet their prospective prices are significantly higher. Secondly, SSTs are not compatible with the protection schemes employed in today's LV grids, i.e., they are not drop-in replacements for LFTs. Also notable, concerning the communication, the SST faces a great challenge. The requirements for SST’s wireless communication network are complex because they seek lower latency, greater bandwidth, interoperability, and scalability.
The following article may be of help to you. https://ieeexplore.ieee.org/document/8007304
Moreover; other areas to look into are:
· Economics feasibility study of advanced SST needs to investigate further for quantitative evaluation of data collection, validation, communication, filtering, calibration, protection, PQ, data dissemination and cybersecurity requirements as well as to estimate the payback period. Moreover, the advanced SST combined with cheaper high configured power electronic devices will support the economic feasibility of SST for replacing conventional transformer as well as promotes a significant development and application of the SST.
· In the future, SST would be a key component for smart grids in controlling the electricity routing and new functionalities to the distribution grids. Thus, SST could be designed for revolutionary functionalities of the smart grid to mitigate PQ problems, improve reliability indices, reactive power compensation, and efficiency.
· In the next-generation electric power system, large RE integration would change the grid energy management system. SST could be used as an energy router in order to manage supply and demand efficiently in the smart grids. Thus, a SST with a high level of functionalities as an energy router could be designed in terms of usages and functions in different domains considering power electronics, communications, grid intelligence, and network protocol requirements.
· The overall efficiency of the SST is experiencing reliability challenges as SST still in research and testing level. Thus, an advanced scalable SST model, its algorithm, mathematical formulation of optimization problems and control strategies are needed to be designed to ensure the efficiency improvement without affecting the stability and reliability of the grid as well as provide high-performance behaviour under different operating conditions.
· SST’s fast current limiting is very important for protection and blackout prevention using fast load reduction schemes of the grids. However, due to limited overvoltage and overcurrent capabilities, SST requires additional protection devices compared to conventional LV transformer protection schemes. As SST has not yet been economically justified, therefore, it needs an advanced protection device including flexible control function of the protective relay, sufficient inductive filters and the impact of the time latencies on the overall protective scheme.
· Real-time communications between the SST and the power devices are very important for power transmissions and information exchanges. Thus, an advanced compatible communication system for SST is required to be designed for intelligent energy information dissemination. The communication system must satisfy the transmission latency, reliability, and information security.
Try reading this article: https://ieeexplore.ieee.org/stamp/stamp.jsp?arnumber=8962031