研究目的
To develop a simulating tool using VHDL-AMS for modeling and simulation of a grid-tied real solar power plant to find the real electrical energy generation, considering monthly averaged direct normal radiation and solar panel characteristics, as part of initial developments for a larger tool to optimize coordinated operation with hydroelectric power plants.
研究成果
The VHDL-AMS language was successfully used to model and simulate a grid-tied solar power plant, with simulation results showing satisfactory agreement with real measurements (maximum error of 2.95% and minimal error of 0.01%). This work serves as an initial development for a larger tool aimed at optimizing coordinated operation between solar and hydroelectric power systems, particularly in tropical regions with alternating rain and sun conditions.
研究不足
The modeling only considers the power electrical system without the control system. The study is based on a specific case study in one location (Montería, Colombia) and uses averaged radiation data, which may not capture all variabilities. The VHDL-AMS code is not fully detailed due to space constraints.
1：Experimental Design and Method Selection:
The study uses VHDL-AMS language for modeling and simulation, supported by SystemVision? software, to describe the electrical system of a grid-tied solar power plant. The design rationale is to create abstract models that simulate the system's behavior and performance.
2：Sample Selection and Data Sources:
A real 21.0 kWp solar power plant in Montería, Colombia, is used as the case study. Data includes measurements from the Circuitor (CDP-0) device over 2 weeks in March, and monthly averaged direct normal radiation data from NASA's Surface meteorology and Solar Energy Web site (164.17 W/m2 for March).
3：0 kWp solar power plant in Montería, Colombia, is used as the case study. Data includes measurements from the Circuitor (CDP-0) device over 2 weeks in March, and monthly averaged direct normal radiation data from NASA's Surface meteorology and Solar Energy Web site (17 W/m2 for March).
List of Experimental Equipment and Materials:
3. List of Experimental Equipment and Materials: Solar panels (90 panels of 255 Wp), SMA On Grid inverters (3 units), Circuitor dynamic power controller (CDP-0), and software tools (SystemVision? for VHDL-AMS simulation).
4：Experimental Procedures and Operational Workflow:
Model the photovoltaic solar panel and entire system in VHDL-AMS using SystemVision?. Simulate the system to obtain voltage, current, and power characterizations. Compare simulation results with real measurements from the Circuitor device over specified hours (6:00 to 18:00).
5：0).
Data Analysis Methods:
5. Data Analysis Methods: Compare real measures and VHDL-AMS simulations using error calculations (maximum, average, and minimal error percentages) to validate the model's accuracy.
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