journal article·2026-04-30Open access

Annual Chronological Production Simulation Method for Regional Power Grids Considering Inter-Provincial Monthly Medium-Term Mutual Assistance

Deping Gao, Wei Yan, Siqi Zhang

Applied Sciences· Volume 16· Issue 9

Abstract

This study proposes a three-stage chronological production simulation method to enhance inter-provincial resource coordination. The core innovation lies in combining the “multi-time-scale decomposition” strategy with the “intra-provincial balancing and inter-provincial mutual assistance” mechanism. A three-stage optimization model for annual chronological production simulation is constructed. Specifically, the inter-provincial monthly medium-term mutual assistance stage takes into account the constraints of inter-provincial monthly transaction electricity volume, so as to adapt to the current situation in China where inter-provincial medium-term power transactions are mostly carried out on a monthly cycle. Simulation analysis was conducted based on a case study built with actual data from the Chongqing and Sichuan power grids in the southwestern region of China, which verifies the effectiveness of the proposed method.
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Research context

OpenAlex topics: Electric Power System Optimization · Energy Load and Power Forecasting · Integrated Energy Systems Optimization

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

State Key Laboratory of Power Transmission Equipment & System Security and New Technology, Chongqing University, Shapingba District, Chongqing 400044, China

References (30)

Show source-provided references
1. Coordinated abandoned wind accommodation analysis of multi-area interconnected combined heat and power system considering exchanging power cost
2. Liang, Y., Liu, H., Zhou, H., Meng, Z., Liu, J., and Zhou, M. (2024). Multi-Stage Coordinated Planning for Transmission and Energy Storage Considering Large-Scale Renewable Energy Integration. Appl. Sci., 14.10.3390/app14156486 ↗
3. The role of regional renewable energy integration in electricity decarbonization—A case study of Japan10.1016/j.apenergy.2024.123118 ↗
4. Optimizing renewable energy integration pathways: Inter-regional coordination and storage in India’s power sector10.1016/j.apenergy.2025.126134 ↗
5. Mid-long term optimal dispatching-based study on optimal model of inter-provincial power purchase and sale strategy during wet and dry seasons for hydropower enriched regions
6. Robust Optimal Dispatch of Regional Power Grid Considering Flexible Resources on Both Source and Load Sides
7. Implementation of the principle of freedom of contract in the conclusion of contracts for the purchase and sale of electric power in retail electricity markets
8. A generation method of inter-provincial power support strategies based on ultra-short-term balance margin
9. Scheduling Large-Scale Re-newable Energy: Through Cross-Regional Generation-Load Balancing10.1109/MPE.2025.3542382 ↗
10. Piotr, O., Krzysztof, P., and Marek, S. (2025). Peak Shaving Strategy in the Context of the Charging Process of a Battery Energy Storage System in the Railway Microgrid. Energies, 18.10.3390/en18112674 ↗
11. Key Market Mechanisms for Cross-Regional Tradings in the Electricity Market: Insights from Theory and Real-World Implementations10.1109/ACCESS.2024.3428310 ↗
12. Valeriu, S.C., and Eduard, M.N. (2025). Price Behavior and Market Integration in European Union Electricity Markets: A VECM Analysis. Energies, 18.10.3390/en18040770 ↗
13. A novel integrated double-sided auction for energy trading in day-ahead electricity market10.1016/j.rineng.2025.108906 ↗
14. Standing Committee of the National People’s Congress (1995). Electric Power Law of the People’s Republic of China, Revised 2018, Article 21.
15. State Council of the People’s Republic of China (1993). Regulations on Grid Dispatch Management, Decree No. 115; Administrative Regulation.
16. National Development and Reform Commission, and National Energy Administration (2025). Administrative Measures for Cross-Provincial and Cross-Regional Power Emergency Dispatch, Fagai Yunxing Gui [2025] No. 1193; Policy Document.
17. A new multi-provincial grid complementary operation index and its application
18. A new production simulation method for coordinated operation of multi-provincial power grid
19. A modeler’s guide to handle complexity in energy systems optimization10.1016/j.adapen.2021.100063 ↗
20. Large-scale unit commitment under uncertainty: An updated literature survey10.1007/s10479-018-3003-z ↗
21. Cross-regional power supply-demand analysis model based on clustered unit commitment10.1002/eej.23368 ↗
22. Modeling the hidden flexibility of clustered unit commitment10.1109/TPWRS.2019.2908051 ↗
23. The impact of sub-hourly modelling in power systems with significant levels of renewable generation10.1016/j.apenergy.2013.07.027 ↗
24. Long-term Stochastic Operation Simulation Algorithm Based on Daily Electric Energy Balance and Intra-day Verification
25. Multiple Time-scale Production Simulation of Power System with Large-scale Renewable Energy
26. Panoramic Operation Simulation Approach and Estimation Index System for New Energy Power System Considering Multi-period Coordination
27. An Annual Peak Regulation Auxiliary Service Demand Assessment Model Based on Multi-time Scale Stochastic Optimization
28. Loehr, L., Houben, R., Guntermann, C., and Moser, A. (2022). Nested Decomposition Approach for Dispatch Optimization of Large-Scale, Integrated Electricity, Methane and Hydrogen Infrastructures. Energies, 15.10.3390/en15082716 ↗
29. Annual Electricity Purchase Strategy Optimization of Provincial Power Grid Company Based on Hierarchical Chronological Production Simulation
30. Miao, M., Lou, S., Zhang, Y., and Chen, X. (2021). Research on the Optimized Operation of Hybrid Wind and Battery Energy Storage System Based on Peak-Valley Electricity Price. Energies, 14.10.3390/en14123707 ↗