Proposal of Emergency Direct Load Control Algorism for Maui Smart Grid Demonstration Project

Abstract

The rate of renewable energy will increase to 40% by 2030 in Maui Island. It will be challenge to keep electric frequency when wind generation reduces suddenly. In late years, electric company in Hawaii controls residential water heaters to keep electric frequency. But the comfort impact for consumers by demand control is very large. So we propose the new demand response method “Emergency DLC Algorism” to improve comfort impact for consumers. The characteristics of our Emergency DLC algorism is multistep control request. It can reduce the over load control from target value, can complete load control before the dead line and can reduce the comfort impact for consumers.