With the increase interest in renewable power generation, the demand for a smart and intelligent power system is increasing. This has led to the use of digital communication infrastructure in power systems called smart grid. Smart grid offers many advantages such as the availability of uninterrupted power supply to consumers, reduction in line losses, accommodating increase renewable generation and storage, involvement of consumers in electricity markets, and demand side response. Future power systems or smart grids will have increase share of renewable generation such as solar and wind as well as rely on storage. These renewable generation and storage rely on power electronic converters. Each manufacturer of converters/inverters use their own algorithm to programme their hardware and make it efficient. Additionally, these converters rely on communication protocols to respond to any signal from system operator. Therefore, these smart converters/inverters are vulnerable to cyber-attacks. Although various Cyber Physical Systems (CPS) have been proposed in the past, there is no universal standard for CPS which can be used with different types of converters. This project is aimed to investigate the various cyber challenges for power system operator incorporating increase converter connected generation into the system. The specific objectives of the project are outlined below. Objectives: 1. Investigate the various challenges arises with the use of smart converters 2. Investigate the existing CPS, their advantages, disadvantages and limitations 3. Develop CPS for future power systems 4. Incorporate the knowledge in future standards for CPS in power systems