Research on Multi-Timescale Coordinated Source-Load Forecasting and Control for Multiple Distributed Resources

Main Article Content

Yuxuan Ji

Keywords

distributed generation, adjustable load, multi-timescale forecasting, power shortfall, optimal control

Abstract

Socioeconomic development continues to increase urban electricity demand. At the same time, the global greenhouse effect has made extreme heat events more frequent and prolonged in recent years, substantially affecting urban power loads. Cities are major load centers but are often far from large power-generation bases, resulting in an inverse geographical distribution of sources and loads. During extreme-heat peak-load periods, remote power supplies may be insufficient because of various constraints. It is therefore necessary to coordinate distributed generation, energy storage, adjustable loads, and other resources in or near cities with remote power supplies across regions to support urban demand and ensure a reliable electricity supply. This paper develops a three-stage, multi-timescale coordinated forecasting and control method for multiple distributed resources. The day-ahead analysis and forecasting, intraday rolling optimization, and real-time coordinated optimization stages are solved sequentially to coordinate multi-resource output. Case-study simulations in a typical grid scenario with an inverse source-load distribution verify the method's feasibility.

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