Self-organized cyber physical power system blockchain architecture and protocol

Ting Yang,Meng Wang,Jialin Liu,Haibo Pen,Feng Zhai

doi:10.1177/1550147718803311

Abstract

The state parameters of electrical equipment and power system control parameters are the key data to realize the precise control and cooperative autonomy of a cyber physical power system. The trustworthiness of the data is the primary condition to guarantee the electric power system’s safe and reliable operation. In the traditional centralized data acquisition and management architecture, the security and trustworthiness completely depend on the central main server. A small mistake in the main server will result in data loss, which is irreversible and fatal. Blockchain technique combines the dispersed data with mutual backup and retrieval mechanism, which guarantees that the data cannot be tampered with and forged privately. Based on the blockchain technology, this article proposes a novel data trustworthy acquisition model with high credibility, applied to a self-organized cyber physical power system. In order to overcome the long time-consuming process of building traditional blockchains, a new on-demand data transmission routing algorithm with M/M/1/k queuing model is proposed in this article. Different scales of IEEE standard bus systems are employed as experimental examples to evaluate the algorithm’s performance. The results show that the proposed algorithm can effectively shorten the time consumption of blockchain construction and realize the data trustworthiness of cyber physical power system.

Highlights

The deep integration of power systems and information systems evolves into the cyber physical power system (CPPS), which realizes the full perception and precise control of smart grid.[1]
In this article, based on the private blockchain technology, we propose a novel private data trustworthy acquisition method applied to CPPS
In the time-driven mechanism, the period to generate new data blocks is set according to the CPPS data measuring cycle, such as power metering from each smart meters and switch and electrical device status reporting

Summary

Introduction

The deep integration of power systems and information systems evolves into the cyber physical power system (CPPS), which realizes the full perception and precise control of smart grid.[1]. The M/M/1/k queuing model and on-demand data transmission routing algorithm are presented to realize the quick construction of blockchain to achieve the real-time and trustworthiness requirements of CPPS. In section ‘‘Data blockchain in CPPS,’’ the private data block trustworthy acquisition method in CPPS is established, and the M/M/1/k mixed queuing model and on-demand data-driven routing algorithm are proposed and discussed. In the time-driven mechanism, the period to generate new data blocks is set according to the CPPS data measuring cycle, such as power metering from each smart meters and switch and electrical device status reporting. We used the mixed queuing theory and first-come, first-served (FCFS) mechanism to reduce the time consumption of data block generation in the CPPS terminal and proposed a new on-demand driven routing algorithm to reduce the delay during data block broadcast or point-to-point transmission.

Experiments and performance evaluation

Findings

Conclusion