Research Of Base Station Wind-Solar-Hydrogen Hydrid Independent Power Control System

At present, there are two mainly problems of power supply to base station. Firstly, the cost of using commercial electricity is too high; Secondly, the annual power consumption increasing sharply year by year, runs counter to the "Energy saving and emission reduction" requirements of the Communications industry. To solve the problems, it is suggested to use wind-solar-hydrogen hybrid independent power to supply for base station. The main principle is:use wind and solar energy to power for base station when the wind and solar power is sufficient, and translate extra power into hydrogen power in store. Then energy would be converted into electric energy to power for base station when the wind and solar energy is not sufficient. But the hybrid independent power currently has a problem that is this power lacks effective power supply control mode for base station and management mechanism of energy conversion. The wind-solar complementary independent power is different from wind-solar-hydrogen hybrid independent power, which means its control modes cannot used to solve problems mentioned above. The management mechanisms of wind-solar complementary independent power are too simple, the energy utilization is very low, and this cannot meet the requirements of intelligent control and remote management on power that Operators need. This paper gives a Maximum Power Point Tracking algorithm to control energy conversion; this can increase the energy utilization of the wind-solar complementary system. A distributed intelligent control and remote management of power system based on field bus is given to meet the requirements in controlling and management.This paper gives an introduction of the wind-solar-hydrogen hybrid independent power at first, gives a control system model for this power system and analyses its reliability and functions. Then a control strategy to enhance wind-solar system energy utilization is given after researching on power supply module’s features. A control method is proposed to improve the reliability of hydrogen cell and accumulator cell. Next, this paper gives the design’s details of the power management system, which introduces the management system architecture, central control system and local control system design. The paper focuses on the implementation of the base station’s local control system both in hardware and software based on sensor and field bus technologies.