鮮筍

鮮筍

結果 (英文) 1:

Fresh bamboo shoots

結果 (英文) 2:

Meaning: At present, with the consumption of non-renewable energy such as coal, oil and environmental problems in the world, many countries pay more attention to wind power, solar energy and other new energy and renewable energy research, development and utilization. Among them, solar photovoltaic power generation is the use of solar light wave particle diphotoability in the electron connection electron solar power generation. Solar photovoltaic power generation can be from a few watts to several megawatts, with its inexhaustible, pollution-free, design and installation is easily limited by geographical constraints and this, noise-free, long-life and almost maintenance-free and other excellent characteristics and increasingly become one of the new forms of power generation. It is being promoted and applied rapidly. Has great prospects for development. At present, the use of solar energy and the characteristics of photovoltaic cells research is a hot topic in the 21st century, many have invested a lot of manpower and material resources to study solar energy receivers. Because of the large initial investment of photovoltaic system, it is of great significance to study the fault diagnosis of photovoltaic array, the maximum power point tracking control, the new grid-connected topology and its grid-connected control algorithm to improve the reliability and efficiency of the system.

In order to make the power generation truly achieve the practical level, one is to improve the efficiency of the conversion of the borrowed power generation and reduce its cost, and the other is to achieve the power generation and production bureau will produce.

At present, the main civilian solar cells are single-crystal silicon, polysilicon, amorphous silicon three kinds. Single-crystal silicon solar cell conversion efficiency is the highest, it has reached more than 20%, but expensive. Amorphous silicon solar cells are the least efficient and cheapest, and the most promising future for general power generation will be such batteries.

Of course, solar cells for special purposes and laboratories are much more efficient, such as the new solar cells developed by Boeing in the United States, developed by the Company of Arsenide and The Ringo, in exchange for 36% efficiency, which is almost catching up with the efficiency of coal-fired power generation. But because it is too expensive, it is currently limited to satellite use.