Faculty of Engineering and Built Environment
Permanent URI for this communityhttp://ir-dev.dut.ac.za/handle/10321/9
Browse
2 results
Search Results
Item Privacy and security for applications and services in future generation smart grids(2022-05-13) Khumalo, Zephania Philani; Nleya, B.Growing energy demands together with the urge to supply available power in a reliable, as well as efficient manner, has led to the gradual upgrading and modernizing of existing power grid systems into Smart Grids (SGs) by way of incorporating supporting information and communication technology (ICT) subsystems. The latter facilities the two-way flow of both energy (power) and information related to the grid's performance, as well as the end user's requirements. Notably, the ICT subsystem enables key entities such as generation, distribution, transmission, and end-user subsystems to interrelated in real-time, and in the process, this achieving a well reliable, robust as well as efficiently managed SG system. The interactions of the various entities constituting the grid result in the emergence of various services and applications exchanging data throughout the interconnected systems. Whereas the SG is quite efficient in rendering its services, it, however, is exposed to various cyber security threats by adversaries. Notably, security threats vary depending on the applications. On the user end networks, the mandatory aggregation of power consumption as well as exchange of power consumption-related information on individual household area networks (HANs) or among HANs and utility's control canter (CC) can result in adversaries tempering with the processes. In particular key security concerns being that during these operations, individuals' privacy, as well as aggregated data integrity, can be compromised as a result of attacks. The resource-constrained nature of associated devices, objects, and elements of the SG at the user side networks and in the SG core, in general, brings about challenges in implementing robust security measures that inevitably involve the performing of complex crypto-operations.Item Secured smart grid network for Advanced Metering Infrastructure (AMI)(SAIIE, 2016-02) Khumalo, Zephania Philani; Nleya, BakheSmart Grids are generally modern electric power network technology systems used by power utility to optimise the efficiency of power supply. While it is good practice to introduce Smart Grid technology, the use of digital technology introduces security threats on Smart Grid systems. Smart Grids mostly have a sophisticated network arrangement which may be exploited to access private information and private sensitive data therefore there is a need to secure it. Energy theft and the metering information are amongst the biggest fears related to the Smart Grid application. This paper will discuss Smart Grid security technology challenges and possible effective solutions. Particularly overcoming Smart Grid security challenges, a robust communications protocol that will implement security functionalities is required. The solution aspect should include but not be limited to encryption of messages, minimizing delays due to cryptographic processes and guaranteeing integrity of these messages with negligible latency. Smart Grid is a part of Advanced Metering Infrastructure (AMI) and the whole network need to be secured. Advanced Encryption Standard (AES) will be implemented to enhance security of this network. Using OPNET and Java NetBeans 8.2 complier it will be proven that the AES or modified AES will best serve the Power Line Communications (PLC) Smart Grid security challenges.