市电即我们所说的工频交流电(AC),交流电的常用三个量来表征:电压、电流、频率。世界各国的常用交流电工频频率有50Hz(赫兹)与60Hz(赫兹)两种,民用交流电压分布由100V至380V不等。机房一般引入三相380V,50HZ的市电作为电源,但是设备的电源整流模块用的是单相220V的电压。
City electricity, that is, we call AC, alternating current commonly used three quantities to characterize: voltage, current, frequency. There are two kinds of common AC power frequency in the world, 50Hz (Hz) and 60Hz (Hz), and the distribution of civil AC voltage is from 100V to 380V. The computer room usually introduces three-phase 380V and 50HZ city power as the power supply, but the power rectifier module of the equipment uses the voltage of single-phase 220V.
市电即我们所说的工频交流电(AC),交流电的常用三个量来表征:电压、电流、频率。世界各国的常用交流电工频频率有50Hz(赫兹)与60Hz(赫兹)两种,民用交流电压分布由100V至380V不等。机房一般引入三相380V,50HZ的市电作为电源,但是设备的电源整流模块用的是单相220V的电压。
City electricity, that is, we call AC, alternating current commonly used three quantities to characterize: voltage, current, frequency. There are two kinds of common AC power frequency in the world, 50Hz (Hz) and 60Hz (Hz), and the distribution of civil AC voltage is from 100V to 380V. The computer room usually introduces three-phase 380V and 50HZ city power as the power supply, but the power rectifier module of the equipment uses the voltage of single-phase 220V.
全世界市电有不相同的电压标准,如我国一般为220V(伏),日本为110V(伏),美国为110V(伏)。 通俗点说,市电就是区别于发电的电,也就是从政府的电网里面提取的电力资源。
The world power market has different voltage standards, such as our country is generally 220V (volts), Japan is 110V (volts), the United States is 110V (volts). Popularly speaking, the city electricity is different from the power generation, that is, from the government's power grid to extract power resources.
220V市电的供电,标准如下:
The power supply standard for 220V city is as follows:
火线与零线间 :220V±10%
Between FireWire and zero line: 220V + 10%
零线与地线间 :小于5V大于0V
Between zero line and ground wire: less than 5V, greater than 0V
火线与地线间: 小于220V±10%
Between fire line and ground wire: less than 220V + 10%
低于或高于正常值 市电线路,建议用户改善线路。
Below or above the normal value of the city power line, it is recommended that users improve the line.
1、火地远低于220V,布线异常。
1, fire is much lower than that of 220V, abnormal wiring.
2、火地完全为零时,无地线。
2, completely zero no ground fire.
3、零地间大于5V,地线不好。
3, zero ground is greater than 5V, the ground is not good.
4、零地间完全为0,无地线。建议用户改善线路,或安装地线。
4, zero to earth is 0, no ground wire. Suggest that the user improve the line or install the ground wire.
风力发电机因风量不稳定,故其输出的是13~25V变化的交流电,须经充电器整流,再对蓄电瓶充电,使风力发电机产生的电能变成化学能。然后用有保护电路的逆变电源,把电瓶里的化学能转变成交流220V市电,才能保证稳定使用。
Due to the unstable air flow rate, the output of the wind-driven generator is alternating current from 13 to 25V. The charger must be rectified by the charger, and then charged to the storage battery, so that the electric energy generated by the wind generator can be turned into chemical energy. Then, with the protective circuit of the inverter power, the battery's chemical energy into AC 220V power, to ensure stable use.
通常人们认为,风力发电的功率完全由风力发电机的功率决定,想选购大一点的风力发电机,而这是不正确的。目前的风力发电机只是给电瓶充电,而由电瓶把电能贮存起来,人们终使用电功率的大小与电瓶大小有更密切的关系。功率的大小更主要取决于风量的大小,而不仅是机头功率的大小。在内地,小的风力发电机会比大的更合适。因为它更容易被小风量带动而发电,持续不断的小风,会比一时狂风更能供给较大的能量。当无风时人们还可以正常使用风力带来的电能,也就是说一台200W风力发电机也可以通过大电瓶与逆变器的配合使用,获得500W甚至1000W乃至更大的功率输出。
It is generally believed that the power of the wind power is entirely determined by the power of the wind turbine, and it is incorrect to choose a larger wind generator. The current wind turbines only charge the battery, while the battery stores the electricity, and the final use of electrical power is closely related to the size of the battery. The magnitude of power depends more on the size of the air flow than on the power of the nose. In the interior, smaller wind power opportunities are better than large ones. Because it's easier to be a small amount of wind driven generator, constant wind, will be able to supply more energy than a gust of wind. It can also be caused by normal use of wind power when no wind, that is to say a 200W wind power generator can also be through with large battery and inverter, 500W or even 1000W and even greater power output.
使用风力发电机,就是源源不断地把风能变成我们家庭使用的标准市电,其节约的程度是明显的,一个家庭一年的用电只需20元电瓶液的代价。而现在的风力发电机比几年前的性能有很大改进,以前只是在少数边远地区使用,风力发电机接一个15W的灯泡直接用电,一明一暗并会经常损坏灯泡。而现在由于技术进步,采用的充电器、逆变器,风力发电成为有一定科技含量的小系统,并能在一定条件下代替正常的市电。山区可以借此系统做一个常年不花钱的路灯;高速公路可用它做夜晚的路标灯;山区的孩子可以在日光灯下晚自;城市小高层楼顶也可用风力电机,这不但节约而且是真正绿色电源。家庭用风力发电机,不但可以防止停电,而且还能增加生活情趣。在旅游景区、边防、学校、乃至落后的山区,风力发电机正在成为人们的采购热点。无线电爱好者可用自己的技术在风力发电方面为山区人民服务,使人们看电视及照明用电与城市同步,也能使自己劳动致富。
The use of wind turbines is the steady flow of wind energy into the standard electricity used in our homes. The degree of savings is obvious. The cost of electricity for a household is only 20 yuan per month. Today's wind turbines are much better than they were a few years ago. They used to be used only in a few remote areas. The wind turbines connected to a 15W bulb were powered directly, bright and dark, and often damaged the bulb. Now, due to technological advances, the use of advanced chargers and inverters, wind power generation has a certain scientific and technological content of small systems, and can be in some conditions to replace the normal city electricity. The mountain can be a perennial free street to highway system; it can be used to make the road in the night light; the children in the mountainous area in the fluorescent lamp under the night; city high-rise roof wind motor can also be used, this not only saves and is the real green power. A family of wind turbines not only prevents blackouts, but also adds zest to life. In the tourist attractions, border defense, schools, troops and even backward mountain areas, wind turbines are becoming a hot spot for people to purchase. Radio enthusiasts can use their technology to serve the mountain people in wind power, enabling people to watch television and lighting, and use electricity to synchronize with the city, as well as to enrich themselves.
尽管风力发电机多种多样,但归纳起来可分为两类:①水平轴风力发电机,风轮的旋转轴与风向平行;②垂直轴风力发电机,风轮的旋转轴垂直于地面或者气流方向。
Although the wind power generator is varied, but summed up can be divided into two types: the horizontal axis wind turbine, the axis of rotation of the wind wheel and parallel to the wind direction; the vertical axis wind turbine, the wind wheel rotation axis perpendicular to the ground or the air flow direction.
水平轴风力发电机
Horizontal shaft wind power generator
水平轴风力发电机科分为升力型和阻力型两类。升力型风力发电机旋转速度快,阻力型旋转速度慢。对于风力发电,多采用升力型水平轴风力发电机。大多数水平轴风力发电机具有对风装置,能随风向改变而转动。对于小型风力发电机,这种对风装置采用尾舵,而对于大型的风力发电机,则利用风向传感元件以及伺服电机组成的传动机构。
The horizontal axis wind power generator is divided into two types: lift type and resistance type. The lift type wind power generator has fast rotation speed and slow resistance type rotation speed. For wind power generation, more lift type horizontal axis wind turbines are adopted. Most horizontal axis wind turbines rotate with the wind device and change with the wind. For small wind turbines, the tail rudder is used in the wind turbine, and the large wind turbine is composed of a wind direction sensing element and a servo motor.
风力机的风轮在塔架前面的称为上风向风力机,风轮在塔架后面的则成为下风向风机。水平轴风力发电机的式样很多,有的具有反转叶片的风轮,有的再一个塔架上安装多个风轮,以便在输出功率一定的条件下减少塔架的成本,还有的水平轴风力发电机在风轮周围产生漩涡,集中气流,增加气流速度。
The wind wheel of the wind turbine is called the upper wind direction wind machine in front of the tower, and the wind wheel is a downwind wind fan behind the tower. Horizontal axis wind turbine, a lot of style, the wind wheel blade has some reversal, another some tower is provided with a plurality of wind wheel, in order to reduce the cost of the tower in condition of a certain output power, and the horizontal axis wind turbine vortex, the wind wheel around the concentrated stream flow velocity increases.
垂直轴风力发电机
Vertical axis wind power generator
垂直轴风力发电机在风向改变的时候无需对风,在这点上相对于水平轴风力发电机是一大优势,它不仅使结构设计简化,而且也减少了风轮对风时的陀螺力。
The vertical axis wind turbine when the wind changes without the wind, at this point relative to the horizontal axis wind turbine is a big advantage, it not only makes the structure of simple design, but also to reduce the wind force when the wind wheel gyroscope.
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