Abstract
Advantages of wind-solar complementary power generation system to utilize solar and wind energy in the aspect of resource and technical economy have been reviewed tersely. Convenience of entering and exiting generating equipment and load from DC as well as AC bus are interpreted briefly. The factors that affect the electrical power output of the system were analyzed and studied. Based on the law of energy conservation, the energetic matching algorithm was proposed which forms the foundation of optimal configuration of system. Finally, the intelligent control and on-line monitoring of wind-solar complementary power generation system were discussed.
Highlights
Wind and solar energy have some shortcomings such as randomness, instability and high cost of power generation
Wind-solar complementary power generation system is the combination of their advantages
There are two methods to optimize the design of wind-solar complementary power generation system: one is power matching, that is, in condition of different solar irradiance and wind speed, the total power of photovoltaic array as well as wind turbine generator sets (WTGS) is not less than that of load, which is used for optimal control of the system; the other is energetic matching one, in which the sum of power generation of photovoltaic array and WTGS is not less than the total power consumption of load, which is mainly used to optimize design, and will be discussed later in this article
Summary
Wind and solar energy have some shortcomings such as randomness, instability and high cost of power generation. With rapid technological progress of wind-solar complementary power generation, some large tool software packages have been adopted to simulate performance of system. There are two methods to optimize the design of wind-solar complementary power generation system: one is power matching, that is, in condition of different solar irradiance and wind speed, the total power of photovoltaic array as well as WTGS is not less than that of load, which is used for optimal control of the system; the other is energetic matching one, in which the sum of power generation of photovoltaic array and WTGS is not less than the total power consumption of load (including the system energy consumption), which is mainly used to optimize design, and will be discussed later in this article. The smaller the value, the better [4]
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