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After a certain period of time, coal power will still be an important component of power supply and will still need to exist at a certain scale of capacity for a longer time.
(Source: Power Magazine ID: energymagazine Text | Luo Dun)
After General Jinping proposed China’s “carbonization peak” and carbon neutrality targets in September 2020, coal-electricity with a machine capacity of more than 1 billion kilowatts has become an embarrassing existence in the Chinese dynamic circle. Many people believe that as the carbon reduction potential of coal-electricity is gradually reaching the bottom, the final addition of coal-electricity will be the key to carbonization peak and carbon neutrality in China’s power industry.
After the fog in 2013, coal and electricity have always been under blame in the domestic market, and now it has reached the edge of “death”. However, the life span of coal electricity may not be as good as looking at the isolated perspective of carbon neutrality targets, and it must be judged from the environment and format of the entire power system.
When we have a broad perspective, the conclusions can be different: not only will the coal and electricity not only die, but will even play the role of the actor in the new future power system.
The impact of large-scale and online light and online light
In the context of carbon neutrality, the industry expects that the annual growth rate of new style and optical devices will be 50 million kw and 70 million kw in the next ten years. In 2030, the new dynamic devices will exceed 1.2 billion kw, reaching more than 1.7 billion kw, and it is widely expected to reach 1.2 billion kw by 2025, with a growth rate significantly exceeding the 13th Five-Year Plan period. During the 13th Five-Year Plan period, the average annual increase in wind turbines was about 30 million kw (exhausted in 2020, and the new engines exceeded 70 million kw that year), and the average annual increase in photovoltaic engines was about 50 million kw. Even for third-party institutions, most of the predicted wind photosynthetic projects have an average annual addition of more than 100 million kw.
The power system is a non-linear time-changing energy balance system that exceeds the scale. It must always maintain balance. The production organization form is “source load”. Electricity is the active adjustment episode, and the negative impact of the passiveness is the passiveness of the session. Is their logic edited? The power system is actively adjusted, followed by the load operation, and a precise and controllable power generation system is used to match a basic and detectable power system. Through the rotational adjustment during the actual operation, the power system can be operated safely and reliably.
New powers mainly based on wind and light power generation cannot be as good as “source load” (wind, light is not controlled), or can only “source load” (wind and light is abandoned, reducing output); at the same time, after a large number of distributed new powers are connected on the power side, Pinay escortThe accuracy of the negative load was also greatly reduced. As a result, the scale of new forces has been greatly connected, which will have a grand impact on traditional Internet. Before the power supply side energy has developed completely, the wind and optical power generation systems do not have the ability to adjust peak frequency, rotate and ineffective replenishment. The atmosphere conditions of the random machine make the machine work change at the same time, which makes the network structure more impactful, so that the network needs to be constructed in wind and optical power systems to construct corresponding rotation and reactive power compensation to solve peak frequency and to effectively control and adjust the voltage. Other common power supplies are required to supply active power to supplement adjustment to ensure that the network is continuously, stable and reliable for the load. href=”https://philippines-sugar.net/”>Escort manila power supply.
In theory, the power generation capacity added by the wind and light entering the network is not as effective as reducing the common power generation units owned by the power system. Therefore, the existence of wind and light generation in a certain sense is equivalent to adding an “indeterministic burden” to the Internet.
When wind and optical power are connected to the power network in a large scale, facing the future of “two highs” (high proportional cleaning power, high proportional power electronic system), we must not only adjust the specific gravity (disposal) of new power generation, but also ensure the safety of power. We must build a new power system with new power as the main body. A new power system with new power as the main body means that wind and optical power generation will be the main body of future power systems. Coal and electricity will be reduced from the main force to assist in power, but it must also bear the responsibility of “pressure” for power supply safety. The coal power positioned as a booster power, Sugar daddy is positioned as a power supply, and the overall capacity of the facelift cannot be as low as possible, but the operational effectiveness (applied hours) Sugar daddy cannot be as high as possible!
Coal and electric power are the “trump card” of Internet safety
The wave of wind and optical power is completely changed randomly without the weather conditions, and is much higher than the normal negative load changes on the Internet. So,, the adjustable capacity prepared by photoelectric generation cannot be easily completed with temporary start and shutdown, but must be kept in the rotation preparation state. As a result, the larger the capacity of the wind and light generator, the larger the capacity of the rotation is. Therefore, when the wind and light power generation are connected to the power network in a large proportion, it must be equipped with a large number of flexible and adjustable power sources, that is, flexible power sources. In theory, the Sugar baby‘s statistical power can be a flexible power source because they are all adjustable and controllable. For example, hydroelectric (including pumping and storage), gas, battery (electrochemical energy storage), and coal electricity.
In terms of hydroelectricity, my country’s hydroelectricity installation capacity is 37 million kw, of which 30 million kw of pumping storage stations are no longer large due to double pressure from resources and environment. The adjustment of the hydroelectric factory (including pumping and storage) is stronger. The capacity is large and the opening/stop adjustment of the machine is a more fantastic peak-pressing power supply. However, the layout of the water and electricity is subject to the constraints of natural resources and is limited in both address selection and capacity. Adding the water and electricity cycle (the dry period) will make it sometimes have the need for peaking. Today, the 30 million kw machine capacity of our pumping and storage station clearly lacks the efficiency of fully bearing the flexible power supply.
Electricity is extremely advantageous in peak adjustment and ultra-low emissions. The air-electric stop rate is fast, and the large machine can be kept for 1 hour when it is activated until it is full of load. , can quickly respond to network demand, and can provide reliable peak support for the network; nitrogen oxide emissions are small, S02 and smoke emission bases are zero, and the ratio of coal to electricity is clean and environmentally friendly. However, due to China’s “rich in coal, oil and gas” resource income, the higher gas price and safe supply are not fully guaranteed, making my country’s gas electric machines more unlimited. By the end of 2020, my country’s gas electric machines reached 100 million kw, but only account for 4.5% of the total engine capacity; otherwise, summer is often the natural gas air, and the demand for ensuring the growth will also restrain the output of gas electric peaks.
Today, I think about the energy storage application system, especially the electrochemical (battery) energy storage, and a large number of hydrogen energy storage. The battery can control the output power with power electronics, and the response should be very agile. It is very suitable for the power system’s modulation frequency. The frequency consequence is 1.7 times that of the hydroelectric motor, which is far better than that of the coal motor. From the medium and long term Sugar daddy, energy storage or energy (hyperactivity can be seen as a kind of energy storage) plus a smart power systemIt is the final solution to realize the reduction of large-scale new forces and thus the carbon neutrality of the power system. However, during the near term, the energy supply cannot fully implement peak performance.
First, the capacity of the energy storage system, which is mainly based on the steel battery, is unlimited. The capacity is set to 10% of the installation capacity, and the charging (discharging) time is 2 hours. For power systems, such a setup is useful in setting up a single-frequency modulation over a short time (“minute” level), but it does not have enough power to peak with “day” or “week” as the time period. Assuming that the accumulated installation machines of the wind and optical TC:
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