You want to calculate the optimal rotation speed of the generator of the Three Gorges Dam

Introduction Do you want to calculate the optimal speed of the Three Gorges Dam generator? The Three Gorges Dam is not 170 meters high, only about 130 meters, and 175 meters is the altitude. Head (the difference in water level between the dam and the dam)

You want to calculate the optimal rotation speed of the generator of the Three Gorges Dam

The Three Gorges Dam is not 170 meters high, only about 130 meters, and 175 meters is the altitude. The water height (the difference in water level between the dam and the dam) is approximately 100 meters (during the rainy season). There is no point in calculating the optimal rotation speed of the generator, because as long as it is a generator for the power grid, the rotation speed is fixed, and one revolution will not change. No more, not even one turn less (except for wind power, which is a DC permanent magnet generator). The Three Gorges Generator is the largest hydrogenerator in the world, with a power of 700,000 kilowatts and a rotation speed of 75 rpm (because the generator has 40 pairs of magnetic poles, or 80 poles. The nominal production voltage electricity is 20). kV, the rated current is 22,453 amps, 75. The rotation speed cannot be changed in any way, otherwise you will not be able torez not access the Internet.

The largest thermal power station in Sichuan is fully powered. What challenges will persistent extremely high temperatures bring to electrical safety?

Wind power and photovoltaics are new energy sources that China is working to develop. The electricity network must fully absorb them and prioritize their use. Hydroelectricity also requires priority use of the electricity network during periods of flooding. This is a comprehensive consideration of a series of factors such as environmental protection and the reduction of carbon emissions by the State. The electricity network can therefore do nothing! Why is it called “junk electricity”? There are mainly two aspects.

First, photovoltaic and wind energy have low installed capacity and are dispersed, making it difficult to meet needspeak load regulation of the electricity network! To put it simply, when the weather is sunny and the wind is blowing, the insufficient thermal power will be supplemented. When short-term electricity demand increases rapidly, photovoltaic and wind power cannot meet it. On cloudy days and when there is no wind, the power plant is dead. In the event of a power outage, thermal energy is used! And the price of new electricity on the network is relatively high! This means that when the sun rises, the heat load is reduced and when the sun sets, the heat load increases. For the power grid, constant adjustments are required, which is not conducive to the safety and economical operation of the power grid. Secondly, wind and photovoltaic power are not stable enough, resulting in the transmission of harmonics to the power grid system, whichwhich will increase power losses and affect motor efficiency, which will affect high precision manufacturing! These two reasons should be the reason why photovoltaic and wind energy are called "garbage energy".

Both are new energy production, which are currently encouraged and vigorously developed by the state, and there are huge state subsidies. , the grid settlement price for thermal power is about 0.3 yuan per kilowatt hour, and the price of wind and photovoltaic power generation ranges from 0.3 to 0.8 yuan.

Both types of electricity generation had a fatal flaw at the time, namely their intermittency. Solar power produced electricity during the day and could not produce electricity at night. Wind power could produce electricity when it was windy. but could not produce electricity when it did notthere was no wind. These two types of power generation are actually not well received by the power grid, but due to state support for new energy and requirements for energy saving and emission reduction, the electricity network company must accept them unconditionally.

There are more and more of these two types of electricity production, which lead to instability in the electricity network. At present, we mainly rely on thermal energy peak shaving, pumped energy storage, wind energy heating and wind energy heating. building energy storage power plants to solve intermittent problems. At the same time, wind and solar energy forecasts are becoming increasingly accurate, which also reduces pressure on electricity grid regulation.

ManyThese places in Sichuan experienced electricity shortages due to high temperatures, so Sichuan's largest thermal power station began supplying electricity at full capacity. High temperatures pose many electrical safety challenges. First of all, people feel sick during the day in hot weather. It's very hot, but with many places under power rationing, turning on the air conditioning has become a luxury, not to mention it keeps people from sleep peacefully at night, and resorting to thermal energy production is not guaranteed to solve the problem. issue. Second, the proportion of thermal power generation in Sichuan Province is only about 15%.Recently, the Department of Energy decided to increase this proportion to 20%. After all, local businesses cannot produce without the support of electricity, and lCorporate production is closely linked to economic development. Furthermore, the use of electricity is closely linked to society as a whole. Only when the electricity supply is normal are people willing to go out to consume. Currently, Sichuan's hydropower generation is insufficient, and the security of electricity supply depends on how thermal power generation plays its role.

1. Unable to guarantee electricity consumption for urban residents

Recently In Sichuan, people are suffering the consequences of power cuts fluent. Since summer, it's very hot during the day, but they can't turn on the air conditioner at will. sleep due to power outages. What is more important is that although thermal power plants located at various locations provide electrical power cIncomplete, they may not be able to resolve all of these issues immediately.

2. Enterprise production is affected

In modern society, enterprise production must rely on power supply, to ensure the correct movement of the machine. Long-term electricity rationing and even power outages have led to a large number of factories and businesses shutting down production. On the one hand, this prevents companies from carrying out their production tasks and, on the other hand, it has a lasting impact on overall social and economic development. Recently, the Sichuan Provincial Electric Power Department has increased the proportion of thermal power generation to about 20%.

3. Electricity can only be guaranteed if its consumption is guaranteed

Put aside industrial production activitiesuction and residents Let's not talk about electricity consumption in daily life, but from the perspective of the development of the whole society. If you want economic development, you have to make sure people are willing to consume. However, hydroelectric power generation is insufficient these days, and relying solely on thermal power generation will not necessarily solve all problems. Therefore, thermal power generation is also in great difficulty. pressure in the near future.

  • Popular Focus
  • Where is the cheapest battery wholesale?

    Where is the cheapest battery wholesale in Tangxia, Sanyuanli, Baiyun District? There is an enterprise specializing in the independent production of electric vehicles in Tangxia, Sanyuanli, Baiyun District, Baiyun Sanyuanli Avenue, Baiyun Sanyuanli Street
    08-02
  • Four 3.7V lithium batteries in series and parallel produce 7.4V/4.4A. How to reduce it to 4.8V/4.4A?

    Four 3.7V lithium batteries in series and parallel produce 7.4V/4.4A. I personally think it is impossible to reduce it to 4.8V/4.4A. Because the discharge platform of lithium batteries is generally set
    08-10
  • What are the materials of the negative electrodes of lithium batteries?

    What are the materials of the negative electrodes of lithium batteries? The main commercial applications of lithium batteries include graphite, which is a sheet of copper used to guide current and which does not react. another safe
    08-02
  • The difference between 18500 and 26500 batteries

    What is the difference between 18500 and 26500 batteries? The answer above is 18650. The person asking the question should ask what is the difference between 18505 and 26500 batteries. In the case of Fuant ER1
    08-02
  • What does 3.7V 80mAh written on a lithium battery mean?

    What does 3.7V 80mAh written on a lithium battery mean? 3.7 V, 80 mA = 0.08 A, H means 1 hour, or 3600 seconds. Taken together, it is
    08-02
  • How long does a lithium battery (cell phone battery) last?

    How long does a lithium battery (cell phone battery) last? The lifespan of mobile phone batteries, under normal conditions of use and without serious impact, the lifespan set by the manufacturer must be 5 years.
    08-02
  • Will lithium batteries explode when charging?

    Will lithium batteries explode when charged? Will lithium batteries explode when charged? Lithium battery explosions usually occur during the charging process, because the negative electrode material of lithium batteries is graphite or other carbon materi
    08-02
  • Parameters of lgdas31865 lithium battery

    Parameters of lgdas31865 lithium battery The parameters of lgdas31865 lithium battery are as follows: LGDAS31865 is a model 18650 lithium battery with a capacity of
    08-02
  • What are the main components of lithium battery electrolyte?

    What are the main components of lithium battery electrolyte? The composition of lithium battery electrolyte is shown below. 1. Ethylene carbonate: molecular formula C3H4O3. Colorless transparent liquid (>35℃), room temperature
    08-02
  • Who are the lithium battery manufacturers in Shandong?

    What are the lithium battery manufacturers in Shandong? Shandong Shengyang Power Supply Co., Ltd. and Shandong Weineng Environmental Protection Power Technology Co., Ltd. 1. Shandong Shengyang Power Supply Co., Ltd. is located in Shengyang, Qufu City.
    08-02
  • Types of drone batteries available in 2024

    Part 1. Types of drone batteries available in 2024In 2024, drone batteries have advanced significantly, offering a range of options to cater to various needs in
    07-30
  • How long does it take to charge 26650 battery?

    How long does it take to charge a 26650 battery? The charging time for a 26650 battery is generally between 3 and 6 hours, but the precise time depends on the power of the charger and the capacity of the battery. in general
    08-02
  • For what?Sure, here's an article based on the phrase "For what?

    The simple yet profound question, "For what?" often serves as a gateway to deeper reflections on purpose and intention. It is a query that invites us to delve into the reasons behind actions, decisions, and circumstances that shape our lives and the wor
    08-02
  • Choosing the Right Cart Battery

    This comprehensive guide will walk you through everything you need about cart batteries, from understanding different types to making an informed purchase decision.
    08-02
  • 30mAh~500mAh 3.7 V Li-ion Battery

    Welcome to Ufine's collection of 3.7V lithium-ion batteries ranging from 30mAh to 500mAh. Explore a diverse range of compact and lightweight batteries suitable for various electronic devices,
    08-02
  • Here are 10 essential facts about drone batteries for 2024.

    10 Key Facts About Drone Battery for 2024 In 2024, drone batteries have advanced significantly, offering a range of options to cater to various needs in the consumer, commercial, and industrial sectors. Below are the primary types of drone batteries avai
    08-02
  • Could you please explain the difference among IMR, ICR, INR, and IFR 18650 batteries?

    What is the Difference Between IMR, ICR, INR, and IFR 18650 Battery?In 18650 batteries, discerning the differences among IMR, ICR, INR, and IFR types is fundamental for tailored and efficient battery usage. These distinct
    08-02
  • Safety considerations for cart batteries

    Selecting the ideal cart battery is crucial for ensuring optimal performance and longevity of your electric vehicle or vaping device. This comprehensive guide w
    08-01