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  • 固体蓄能器在风电的推广与使用
  • 本站编辑:杭州欧克液压科技有限公司发布日期:2018-08-07 10:36 浏览次数:

      风能作为取之不尽、用之不竭的可再生清洁能源,且清洁环保,并可再生,据有关资料显示,我国陆地风能资源的理论储量为32.26亿kw,可开发利用的风能储量为2.53亿kw,风能资源丰富的沿海和岛屿,其可开发量为10亿kw,截止2013年,全国并网风电装机7548万千瓦,同比增长24.5%,装机容量稳居世界靠前;全国并网风电发电量1401亿千瓦时,同比增长36.6%,高于同期风电装机增速。随着国家对环保的重视、能源危机、装机成本的不断下降等因素的影响,以及对风电扶持政策的相继出台,风电将迎来跨越式的发展,这就使得风电的缺陷日益突出。众所周知,风能具有间歇性和随机性的特点,当风速发生变化时,风电机组的输出功率也跟着变化,用电高峰时可能没有风,可用电低峰时,风力却很大,从而影响电网的正常运行,风力发电的供给与需求很难协调起来,“弃风”现象十分普遍,这就使得风力发电的年有效利用小时数很低。破解这一难题的关键是发展风电蓄能技术,当风力丰富电网处于用电低峰时,将多余电量储存起来,在电网处于用电高峰时,将储存的电量输入电网,保证并网电量稳定。只有把风力发电技术和储能技术结合起来,取长补短,优势互补,才能使风力发电产业顺利发展。

Wind energy, as an inexhaustible and inexhaustible renewable clean energy, is clean and renewable and renewable. According to the relevant data, the theoretical reserves of China's land wind energy resources are 3 billion 226 million KW, the utilization of wind energy reserves is 253 million KW, the coastal and islands with abundant wind energy resources are 1 billion kw, up to 201. 3 years, the national grid of wind power installed 75 million 480 thousand kilowatts, an increase of 24.5%, installed capacity is the world's first; the national grid of wind power generation of 140 billion 100 million kwh, an increase of 36.6%, higher than the growth rate of wind power installed at the same time. With the importance of environmental protection, the energy crisis, the declining cost of installation and other factors, as well as the introduction of wind power support policies, wind power will usher in a leap forward development, which makes the defects of wind power increasingly prominent. As we all know, wind energy has the characteristics of intermittence and randomness. When the wind speed changes, the output power of the wind turbine is also changed. When the peak is used, the wind may not be wind, when the peak is available, the wind is very large, which affects the normal operation of the power grid, and the supply and demand of the wind power generation can hardly be coordinated. " The phenomenon of wind is very common, which makes the annual effective utilization hours of wind power generation very low. The key to solve this problem is to develop the wind energy storage technology. When the wind power rich power grid is in the low peak of electricity use, the excess electricity is stored. When the power grid is in the peak of power consumption, the stored electricity is entered into the power grid to ensure the stability of the grid connected. The wind power industry can develop smoothly only by combining wind power generation technology with energy storage technology, learning from each other's strengths and complementing each other's strengths.

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储能就是将暂时不用的能量储存起来,待用时在释放出来,它分为,化学储能、物理储能和其他储能,化学储能主要是指利用蓄电池储存能量;物理储能分为压缩空气储能、抽水储能、飞轮储能等;其他储能主要有超导电磁储能、超级电容储能、蓄氢储能、蓄热储能、蓄冷储能等,上述储能方式各有千秋,但缺乏一种,使用简便、储能量幅度大、投资少见效快、经济适用的蓄能方式,《一种高效固体蓄能器》专利技术的诞生,或将改变这一现状。

Energy storage is a temporary storage of energy, which is released when it is used. It is divided into chemical energy storage, physical storage and other storage energy. Chemical energy storage is mainly used to store energy by storage battery; physical energy storage can be divided into compressed air energy storage, pumped storage energy, flywheel storage energy, and other storage energy mainly have superconducting electromagnetic storage. Energy storage, storage energy, storage energy, storage energy, storage energy, storage energy and so on. The above storage methods are different, but there is a lack of one kind, which is easy to use, large energy storage, less investment, less efficient and economical, the birth of "a kind of high efficiency solid accumulator", or will change this situation.

固体蓄能器顾名思义,它是利用固体完成蓄能,应属于物理蓄能,它与其他各种蓄能方式相比,具有特的优势,化学蓄能虽使用历史悠久、范围广,但其存在一定的弊端,首先是蓄能量相对较小,其次是废旧电瓶处理容易污染环境;现有的物理蓄能虽然克服了化学蓄能的弊端,但其所储存的能量需要二次转换,才能完成蓄能,效能低,另外,抽水蓄能虽然储存容量大,但也摆脱不了二次转换的制约,且投资大、占地多、见效慢;较为先进的其他蓄能方式虽然攻克了诸多蓄能难题,但由于技术还不成熟,且蓄能成本过高,现阶段很难推广使用,致使现阶段制约风电发展的难题始终未被攻克。

The solid accumulator, as its name implies, is the use of solid to complete the energy storage, should belong to the physical energy storage, it has a unique advantage compared with the other various energy storage methods. Although the chemical energy storage has a long history and a wide range, it has some drawbacks, first of all, the energy storage is relatively small, and the second is that the waste battery treatment is easy to stain. Although the existing physical energy storage can overcome the disadvantages of chemical energy storage, the energy stored in the storage needs two times to complete the energy storage and low efficiency. In addition, although the storage capacity of the pumped storage energy is large, it can not get rid of the restriction of the two conversion, and the investment is large, the land is more occupied and the efficiency is slow, and the more advanced other Although the energy storage method has conquered many energy storage problems, but because the technology is not mature, and the cost of energy storage is too high, it is difficult to popularize it at the present stage. The problem of wind power development at this stage has not been tackled.

高效固体蓄能器的研制或许可以改变这一现状,它根据能量来源于地球引力,又回归于地球引力的理论,即地球引力是宇宙中比较原始的力;依据地球引力失衡可获取能量的原理,利用固体材料制成特殊形状,可以轻易移动的特点,研制出来的,简单地说,就是利用所需储存的能量,改变固体的位能,需输出能量时,使固体的位能转换成势能,众所周知,所有的能量,无论获取的方式如何,均来源于地球引力,又回归于地球引力,也就是说,将回归于地球引力的能量,储存起来,并加以再利用,是解决蓄能的有效方法,它结构简单、使用方便、、容量可大可小,不需要二次转换效能高,具有结构简单、使用方便、容量可大可小的特点外,比较重要的一点是效率高,其通过机械传动,直接将能量储存起来,无需经过电能-储存-电能转换,从而大幅度减少效能损耗,提高效率。以风力发电为例,蓄能过程,只需将风力发电机产生的机械能,直接传输给固体蓄能器,蓄能完成,而无需将风力发电机的机械能转换为电能储存,其效率高于目前所有的蓄能器。

The development of an efficient solid accumulator may change this situation. It is based on the theory that the energy comes from the gravity of the earth and is returned to the earth's gravitational force, that is, the gravitational force of the earth is the most primitive force in the universe; the principle of obtaining energy according to the unbalance of the earth's gravitational force is made of the solid material into a special shape that can be easily moved. It is developed, simply to say, to use the energy stored in the required storage, to change the potential energy of the solid, to convert the energy of the solid to the potential energy. It is known that all the energy, regardless of the way of obtaining, comes from the gravity of the earth and back to the earth's gravitational force, that is to say, it will return to the earth. The energy of the earth's gravitational force is stored and used again. It is an effective method to solve the energy storage. It is simple in structure, convenient in use, without pollution and large in capacity. It does not need two conversion efficiency. It has the characteristics of simple structure, convenient use and large capacity, and the most important point is high efficiency. Through mechanical transmission, energy can be stored directly without energy - storage - energy conversion, thus greatly reducing efficiency loss and improving efficiency. As an example of wind power generation, the energy storage process, only the mechanical energy produced by the wind generator is transmitted directly to the solid accumulator, and the energy storage is completed without the need to convert the mechanical energy of the wind turbine to the electric energy storage, its efficiency is higher than all the current accumulators.