The Vulnerability Evaluation Method for Regional Multiple Energy System

The regional multiple energy systemshas the characteristics of large scale, complex dynamic process and strong randomness. The vulnerability evaluation of RMES has great significance to improve the security and stability of the system. To evaluate the vulnerability of RMES, a vulnerability evaluation framework is implemented which includes probability modeling of distribution generations (DGs), power flow calculation and comprehensive evaluation. Then, the vulnerability evaluation indexes system is established based on the topological structure and operational risk. Finally, the grey comprehensive evaluation method is applied to calculate the solution of the evaluation models. An improved IEEE-37 test case is built on the CloudPSS platform to test the method. The test results show that the vulnerability indexes of each scheme can be calculated accurately, and the comprehensive vulnerabilities of different schemes can be ranked by the method. The method can be applied to the analysis of the safety and stability of RMES and provides some guiding significance for the construction of RMES.