Wind turbine output fluctuations and load changes can also cause insufficient power supply to the system. This is due to the grid connection of large-scale wind power, which makes the static characteristics of the output of the traditional generator set in the system change, resulting in insufficient power supply.
At this time, the energy storage technology can be used as a backup power source to generate electricity and smooth the wind power output curve. According to the response characteristics of the energy storage power supply, the backup power supply can be divided into the following three categories:
(1) FM power supply (minute level), generally start and stop the power supply with online fast response characteristics.
(2) Load tracking power supply (hour class), generally start and stop the power supply with fast response characteristics (such as water and electricity).
(3) Base load power supply (day level), generally start and stop the power supply with slow response characteristics (such as thermal power, nuclear power, etc.).
When the proportion of wind power generation is high, the system has higher requirements for frequency modulation and load tracking and accident backup. This requires that the charge and discharge cycle of the energy storage system should be at the minute level, and at the same time, the system's requirements for the base load unit combination are also increased. When the wind power grid-connected capacity is large, the charge and discharge cycle of the energy storage system can be maintained from hour to day.
In view of the incompatibility of the randomness and volatility of wind power to the grid, the flexible response characteristics of the energy storage device make it a power source with different time scales in the power system, and solve the problem of large-scale wind power grid-connected power supply. Adequacy issues provide ideas.
Spring-type terminals are new types of spring-type terminals, which have been widely used in the world's electrical and electronic engineering industries: lighting, elevator control, instrumentation, power, chemistry, and automotive power.
If the terminal block is black, one of the possibilities is not necessarily burning black, oxidation may also be black. So how to verify whether it is burnt black? The method we take is to wipe it with a finger. If it can be wiped off, like soot, it is the black substance formed by oxidation, which can only be ground off with sandpaper or a file.
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