研究目的
To investigate the impact of ancillary services and their prices on large-scale solar and wind power penetration in the electricity market, and to propose a model for calculating and comparing generation costs with and without renewable energy integration.
研究成果
The integration of large-scale solar and wind power increases the generation costs for energy and ancillary services due to their variability and higher feed-in tariffs. A flexible ancillary service system is essential to manage this integration effectively. The findings suggest the need for reasonable penetration levels and effective mechanisms in electricity markets to avoid curtailment and ensure stability.
研究不足
The study is based on a simplified 3-bus test system and may not fully capture the complexities of real-world power systems. It focuses on the Vietnamese context, which may limit generalizability. The cost functions and assumptions might not account for all economic factors.
1：Experimental Design and Method Selection:
The study uses a model for calculating generation costs for energy and ancillary services, validated with a case study. It involves running Optimal Power Flow (OPF) with operating reserves using specialized software.
2：Sample Selection and Data Sources:
The case study is based on the Vietnamese power system, with data on power plant capacities, loads, and reserve requirements from sources like the Vietnamese Electricity Regulatory Authority and power development plans.
3：List of Experimental Equipment and Materials:
Powerworld software version 18 is used for simulations.
4：Experimental Procedures and Operational Workflow:
Input parameters of the network, power plants, and load; set up reserve requirements; run OPF with operating reserves; export results for energy output and operating reserve output.
5：Data Analysis Methods:
The objective is to minimize the total cost of energy and ancillary services, with constraints on reserve capacities. Results are compared across scenarios with and without renewable energy penetration.
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