研究目的
To propose and demonstrate an innovative method for power factor correction using a solar plant as a source of reactive power to relieve transformer overloading.
研究成果
The research demonstrates that a solar plant can effectively perform power factor correction, reducing transformer overloading by supplying reactive power during idle periods. This approach increases asset utilization and can save costs by reducing grid power purchases, though it necessitates a larger plant capacity for reactive power.
研究不足
The method requires a large solar plant capacity to meet high reactive power demands, which may be costly. The inverters may need modifications to provide more reactive power than real power efficiently.
1：Experimental Design and Method Selection:
The study involves designing a solar system to provide both real and reactive power, utilizing solar plant inverters as STATCOM during idle times. Equations for calculating real power, reactive power, corrected current, and load are used based on electrical principles.
2：Sample Selection and Data Sources:
A case study of a food processing plant with 7 transformers is used. Data on transformer loads and currents were logged hourly over 5 weekdays.
3：List of Experimental Equipment and Materials:
Solar plant with inverters capable of reactive power generation, data logger for recording transformer loads, and Microsoft Excel for data analysis.
4：Experimental Procedures and Operational Workflow:
Installed a logger to record transformer loads, calculated required reactive and real power using equations, designed a 2000 kW solar plant, and simulated its operation in real and reactive power modes.
5：Data Analysis Methods:
Data analyzed using Microsoft Excel to plot profiles of reactive power, real power, and current reductions after power factor correction.
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