研究目的
Investigating the impact of PV power-factor-controlled inverter on the transformer loss of life, cost-effectiveness, GHG emissions, and environmental cost considering long-term characteristics of ambient temperatures and solar irradiance.
研究成果
The study concludes that operating the PV inverter at an optimum power factor minimizes the transformer loading, aging, energy losses cost, and GHG emissions. It also reduces the payback period of the PV system compared to operating at unity power factor or without a PV system.
研究不足
The study is limited to a specific type of transformer (630 kVA, ONAN cooling type, mineral oil-filled) and a specific location (Aswan, Egypt). The impact of PV system size and other renewable energy sources is not considered.
1：Experimental Design and Method Selection:
The study uses a proposed analytical method to find the optimum power factor of PV inverter (PVI) for minimizing transformer aging and energy losses cost. The thermal performance of a 630 kVA mineral oil-filled transformer is simulated in MATLAB.
2：Sample Selection and Data Sources:
The study considers a 630 kVA, ONAN cooling type, mineral oil-filled transformer located at Aswan, Egypt. The PV output power and ambient temperature are considered for long-term impact analysis.
3：List of Experimental Equipment and Materials:
MATLAB programming language for simulation, 630 kVA mineral oil-filled transformer, PV system.
4：Experimental Procedures and Operational Workflow:
The study involves simulating the transformer's thermal performance under different scenarios of PVI operation (no PV, unity PF, and optimum PF) to evaluate aging, cost-effectiveness, and GHG emissions.
5：Data Analysis Methods:
The analysis includes calculating the transformer loading, top oil temperature, winding hottest spot temperature, aging acceleration factor, loss of life, energy losses cost, and GHG emissions.
独家科研数据包，助您复现前沿成果，加速创新突破
获取完整内容
