Economic Research Institute

A Study on Power Grid Project Portfolio Based on Multiscale Feature Integration

Power grid companies have established a feasibility study reserve phase to optimize the rolling schedule of annual investments, in which projects undergo preliminary feasibility studies, are incorporated into a project reserve pool, and subsequently proceed through release, imple...

Adaptive ADMM-based optimal power flow for distribution systems via dynamic penalty strategy

To mitigate voltage fluctuations caused by intermittent distributed generation (DG), this paper proposes a reactive power optimization strategy based on an Improved Alternating Direction Method of Multipliers (I-ADMM). The model coordinates switchable capacitor banks (SCBs), on-l...

Structural Associations of Digital Economy Components with Green Economic Efficiency in China

Digital transformation may improve productive efficiency while increasing energy and material demand. We examine its association with green economic efficiency (GEE) in a balanced panel of 30 Chinese provincial-level regions from 2012 to 2023. GEE is measured using an undesirable...

Coordinated Planning of Hybrid Energy Storage and Transmission Infrastructure for High Renewable Energy Penetration

Against the backdrop of increasing renewable energy penetration, distribution networks face the dual challenges of spatiotemporal mismatch between sources and loads, as well as the surging costs of physical capacity expansion. To address these issues, this paper proposes a joint...

A spatiotemporal deep learning framework for electricity price linkage forecasting using graph attention and reinforcement learning

Medium- and long-term electricity spot-price forecasting is affected by temporal fluctuation, cross-market transmission, and unstable regional coupling, making single-market sequence models insufficient for linkage-aware prediction. This study proposes DL-GNN-LP, a spatiotemporal...