Solar Electric Power System, China Solar Electric Power System
Posting Date : Mar 27, 2012 GMT
System includes: 1. PV Array: A number of PV panels connected in series and/or in parallel giving a DC output out of the incident irradiance. Orientation and tilt of these panels are important design parameters, as well as shading from surrounding obstructions. 2. PV controller: control battery bank charge and discharge reasonable and safety. 3. Inverter: A power converter that inverts the DC power from the panels into AC power. The characteristics of the output signal should match the voltage, frequency and power quality limits in the supply network. 4. Battery bank: can be a single battery or multiple batteries connected together to create essentially one large battery of the required voltage and amp-hour capacity. In some ways the battery configuration and capacity are the most important electrical power decision to make, and a wise choice can help guarantee a steady supply of electrical power as well as a system that is simple to operate and maintain. 5. Loads: Stands for the network connected appliances in the building that are fed from the inverter, or, alternatively, from the grid Solar on-grid power system Solar on-grid power system consists of solar panels, a system controller and inverter. Solar panel will produce DC(Direct Current) electricity, and this electricity will be run though the converter and inverter to produce AC(Alternating Current) electricity. Then this energy is run into AC power panel back to the utility companies power grid. As on-grid solar power system enjoys the advantages of battery-free and low cost, this can make the system operation life longer. It also can remote monitoring during the operating. It has been become the main stream in solar power generation. The system brings benefits of pollution reduction, energy conservation and environment protection, all of which make remarkable social values.