Economic Dispatch Strategy of Multi-energy System Considering N-1 Security Constraints

The integration of multi-energy system is motivated by the energy evolution around the world and is currently popular. MES operation is faced with reliability challenges. This paper proposes an economic dispatch strategy of MES considering N-l security constraints. The MES includes the electricity, heating, cooling, gas energy types. The N-l security constraints of all the four above energy conversion devices are modeled. We carry out a case study to simulate the proposed model. The results verify that the proposed optimal scheduling strategy can ensure the continuous supply of energy for important cooling, heating, and electric energy load regardless of the energy supply device failure.