研究目的
To propose a robust power management strategy (PMS) for an integrated residential solar photovoltaic (PV) and energy storage unit (ESU) to take advantage of time-of-use (ToU) electricity pricing, improving the reliability and efficiency of the power system and reducing the total electricity cost for the consumer.
研究成果
The proposed PMS is effective and robust against various scenarios, including changes in PV irradiation and load demand. It ensures seamless switching between operation modes and efficient power management to take advantage of ToU electricity pricing. The experimental results validate the practical feasibility of the PMS, demonstrating its potential to improve the reliability and efficiency of power systems and reduce electricity costs for consumers.
研究不足
The study focuses on a specific configuration of an integrated PV and ESU system and may not cover all possible variations in system design or operating conditions. The experimental setup is limited to laboratory conditions, and real-world applications may present additional challenges.
1：Experimental Design and Method Selection:
The study involves the design of a PMS for an integrated PV and ESU system, utilizing automatic switching control among various operation modes. The methodology includes the use of PI controllers and sliding mode control (SMC) for system stability and robustness.
2：Sample Selection and Data Sources:
The experimental setup includes a 5 kW PV array, a 3.5kWh ESU formed by 12V single lead acid batteries, and three power converters. Data on PV irradiation, load changes, and state of charge of the ESU are collected.
3：5kWh ESU formed by 12V single lead acid batteries, and three power converters. Data on PV irradiation, load changes, and state of charge of the ESU are collected.
List of Experimental Equipment and Materials:
3. List of Experimental Equipment and Materials: Equipment includes a solar PV emulator (TerraSas, 30kW), a 10.2kWh ESU, a four-leg built-in IGBT power stack, and a General Purpose Inverter Control (GPIC) card from National Instruments.
4：2kWh ESU, a four-leg built-in IGBT power stack, and a General Purpose Inverter Control (GPIC) card from National Instruments.
Experimental Procedures and Operational Workflow:
4. Experimental Procedures and Operational Workflow: The PMS is tested under various scenarios including constant PV irradiation and load demand, high power demand, increased irradiation, and islanding mode. The system's response to these scenarios is monitored and analyzed.
5：Data Analysis Methods:
The performance of the PMS is evaluated based on its ability to regulate the dc-link voltage, manage power flow between the PV, ESU, and grid, and respond to load and irradiation changes.
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
