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模拟新能源(风能,太阳能,地热能等)

第一, Matlab simulation模拟新能源(风能,太阳能,地热能等)

这个要求已完成,主要研究了风能,光伏。

结构分别如下所示:

模拟新能源(风能,太阳能,地热能等)
模拟新能源(风能,太阳能,地热能等)

第二,出图有关电压,电流,电阻,以及功率输出等的关系图,并且能用matlab code或者在模拟中进行计算材料成本,排放,效率,并且能够有互相的可比性,比如,输出功率统一设定为10MW然后观察每个设备的效率以及损耗,并且建造的成本,运行时的排放污染等。第三,最好能出柱状图,饼图,线形图以及数据表格予以说明。

因为功率输出P=U*I,这里是基于这个公式计算的功率,所以给出每个图的U,I,P关系图。

这里设置单个设备的功率为6.2kw。这里以单个风力发电功率为基准。                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           

风电功率分别为:

模拟新能源(风能,太阳能,地热能等)
模拟新能源(风能,太阳能,地热能等)

由于单块的光伏发电板发电量都比较小,这里需要获得相同功率的光伏输出,那么则需要

6200/169 = 37个光伏发电板。

因此,下面分析发电成本和污染以及设备的损耗,都以这个倍数为基准进行对比。

模拟新能源(风能,太阳能,地热能等)

这里比例,也符合一些文献的信息,比如如下网站:

​​https://www.douban.com/note/476215241/​​

模拟新能源(风能,太阳能,地热能等)

即光伏发电成本略高于风能发电的结果。

下面对污染进行简要的分析。污染问题,这里我们主要针对污染因素对环境造成的影响而导致的环境治理费用进行对比,

因为风能污染主要是噪声等污染

光伏,则主要是光污染,以及蓄电池污染等,

他们污染类型不一样,所以统一转换为需要治理这些污染所投入的成本的对比。

模拟新能源(风能,太阳能,地热能等)

通过分析可知,风能发电的噪声污染治理成本价较高。

不过这里有一个问题需要注意,就是光伏发电需要投入大量的蓄电池,而这些电池在使用寿命达到之后,如果处理不合适,将大大增加环境污染,这里仿真不考虑这个因素。

第四,需要有相对应的设计说明,以及使用了哪些方法进行论证,哪些是不可控因素,哪些是变量,具体模拟时参数的调整,如何控制变量和不可控因素,并且指出最可靠的计算方式和模拟方式,然后再加以讨论

每个电路的涉及到的电路模型和相关理论,在单独的设计说明文档中已经有了说明了。以及相关公式也做了描述。

第五,最后,做一下讨论,关于life cycle assessment,这些实验的方法和数据是否有差错,是否有可修改的地方,这些数据和结果是否是我们理想的数据和结果,如何判定他是可靠的数据和结果。

关于风力发电,其寿命主要取决于风电机组主轴轴承的寿命,这是由于这个逐渐是风力发电中寿命最短的一个部件,根据前面的仿真可知,

模拟新能源(风能,太阳能,地热能等)

而这里的功率和主轴轴承的转速成正比,

其关系满足如下关系式:

模拟新能源(风能,太阳能,地热能等)

这里使用寿命函数和转速之间满足如下式子:

其中N为主轴轴承的循环次数。在较好的工况下,其循环次数为9.49*10^8(这个是实验数据,非仿真数据)随着工况变差, N取值逐渐降低

这里分析如下几种类型的工况

N1=9.49*10^8;

N2=7.71*10^8;

N3=6.23*10^8;

N4=4.23*10^8;

N5=2.81*10^8;

N6=1.11*10^8;

模拟新能源(风能,太阳能,地热能等)

而光伏发电,其主要寿命由蓄电池决定。一般情况下,蓄电池的充放电会逐渐降低可持续充电能力,下面给出了蓄电池的充放电衰减变换情况。