Planning and setup of grid-connected photovoltaic generation systems

Solar PV (Photovoltaic, PV) power generation is currently one of the renewable energy with environmental-fashion trends and new alternative-green energy. Taiwan is located in a subtropical zone with sufficient sunshine and abundant solar resource, and thus, has great potential in solar power development. This project sets up a 30.78kWp grid-connected PV array demonstration system on the roof of a mall building in Taiwan. The system configuration follows the present architectural appearance. The mall office roof is configured, and the PV system is monitored by a central monitoring system. The important data are collected, including the generating voltage of solar module and inverter, current, power, working temperature of the thin film solar module, sunshine amount, and atmospheric temperature. The monitoring system has the functions of real-time monitoring data display, historical monitoring data display, and power generation statistics query. This paper proposes the academic theories and application of PV system equipments, as based on practical experience, describes the related operating procedures and methods, and briefly discusses the engineering practice cases regarding the planning, design, and setup of demonstration system. The findings can serve as reference for subsequent project planning and design, supervision and system management, and maintenance.