研究目的
Investigating the utilization of PV inverters instead of conventional reactive power compensation units for reactive power compensation in low voltage systems, considering both technical and economic aspects.
研究成果
The study demonstrates that PV inverters can effectively compensate for reactive power in low voltage systems, offering both technical and economic benefits over conventional RPCUs. However, the choice between increasing inverter size or reducing active power injection depends on the specific system requirements and cost considerations.
研究不足
The study is limited to a specific real-life system and may not cover all possible scenarios in low voltage power systems. The economic evaluation is based on current electricity prices and may vary with market changes.
1：Experimental Design and Method Selection:
The study evaluates the use of PV inverters for reactive power compensation in a real-life system with a low capacitive power factor issue due to an online UPS system. It includes technical analysis and economic evaluation.
2：Sample Selection and Data Sources:
The study is based on the Ayasl? Research Center system at Middle East Technical University, Ankara, Turkey, equipped with a 50 kWp PV system, loads with UPS systems, and an RPCU.
3：List of Experimental Equipment and Materials:
PV system, RPCU, UPS systems, and grid-connected inverters are used.
4：Experimental Procedures and Operational Workflow:
The study analyzes the system's operation under different conditions, including reactive power compensation by PV inverters, and evaluates the economic impact.
5：Data Analysis Methods:
The analysis includes technical evaluation of PV inverter operation for reactive power compensation and economic evaluation of short and long-term costs.
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