Electric Power ›› 2016, Vol. 49 ›› Issue (4): 174-180.DOI: 10.11930/j.issn.1004-9649.2016.04.174.07

• Technology Economics • Previous Articles     Next Articles

Sensitivity Analysis of Micro-grid Scheduling to on-Grid Price and DG Subsidies

ZHANG Shixiang, TIAN Qindan   

  1. Shanghai University of Electric Power, Shanghai 200090, China
  • Received:2015-09-14 Online:2016-04-20 Published:2016-04-27
  • Supported by:
    This work is supported by Shanghai Social Science Planning Program (No. 2013BGL016); Key Innovation Program of Shanghai Municipal Education Commission(No. 14ZS146); Key Research Construction Project for Humanities and Social Sciences in Universities of Shangai (No. WKJD15004); Key Consultation Project of Chinese Academy of Engineering (No. 2016-XZ-29).

Abstract: Facing severe haze problems in many parts of China, the Chinese government vigorously supports the development and utilization of new energy sources. In addition to subsidies, the distributed generations(DGs) are opened to be integrated to the grid. With consideration of each DG’s generating and carbon emissions cost in a micro-grid, and by taking one day as an optimization cycle and the economy, environmental protection, emission reduction and reliability as objective, a low-carbon scheduling model of micro-grid is established, and a low-carbon micro-grid scheduling strategy of micro-grid is developed. The chaotic particle swarm optimization algorithm is used to adjust the output of each DG and the purchase/sale quantity of electricity from the main grid, so as to realize the lowest low-carbon composite cost in a day within a micro-grid. On this basis, a sensitivity analysis is conducted on the micro-grid scheduling to the on-grid price and DG subsidies, which can provide a reference for the government to formulate the policy on promoting micro-grid construction, energy-saving and emission-reduction, and new energy development.

Key words: on-grid price, DG subsidy, micro-grid scheduling, sensitivity

CLC Number: