Abstract. Dynamic demand response (DDR) is a package of control methods to enhance power system security. A CPS modelling and simulation platform for DDR in distribution power systems is presented in this paper. CPS modelling requirements of distribution power systems are analyzed. A coupled CPS modelling platform is built for assessing DDR in the distribution power system, which combines seamlessly modelling tools of physical power networks and cyber communication networks. Simulations results of IEEE 13-node test system demonstrate the effectiveness of the modelling and simulation platform.

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This study uses the DCC-GARCH model to compare the correlation between two types of cryptocurrencies in two different fields. In the context of the popularity of NFTs and the metaverse, new cryptocurrencies based on the metaverse have been favored by investors. Through empirical analysis of mana cryptocurrencies in the NFT market, we find that the new cryptocurrencies in the NFT market have high volatility to Bitcoin, Ethereum, and traditional cryptocurrencies in the past year. Therefore, we conclude that new cryptocurrencies are more likely to be one of the factors for portfolio diversification.