Research On The New Transmission And Distribution Power Grid Construction And New Energy Sources Microgrid Interconnection

Energy provide a large power to develop today's society,the sustainable development of energy has become the urgent need to solve the problem witch facing by the world.Energy Internet helps to achieve the efficient allocation of energy and mass use of renewable energy,and provides the solutions and new direction for the world energy green through low carbon sustainable development route.In this paper,the new construction of transmission and distribution power grid under the Energy Internet environment was researched,transmission and distribution power grid have adopted FACTS,HVDC,Distributed generation and Energy storage technology under the new form;Aim at the actual situation construction of power grid communication system in Yuhang district,Designed the bidirectional power communication system to meet the needs of users and power grid "two-way communication",the grid electricity information collection system and the user interactive system is developed and designed,achieve the goal of two-way communication in Yuhang distict power grid;the technology of micro grid parallel in electric power transmission has been deeply researched,and choose micro power grid which include photovoltaic cell to simulation though Matlab,the simulation using master-slave control technology phase lock loop technology,synchronization technology,combined with the grid control strategy,simulation results show that,in this paper,the control strategy achieve the goal of make the micro power grid smooth to parallel in.In this paper,the micro grid control and information integration system structure after he interconnection is studied put forward the control and information integration system structure based on IEC61850 SCL model and related configuration.