Wind power generation and photovoltaic power generation are both unstable energy sources. When there is no sun or wind, electricity generation will suddenly stop. If the capacity of these energy sources in the power grid exceeds 20%, it will impact the power grid and cause instability in its operation. This is why there is also a saying that wind power and photovoltaic power are grid-unfriendly energy sources.
Why can the electricity grid now only accommodate a maximum of 20% of wind capacity?
Wind turbines grew too quickly and had a significant impact on the electricity grid. The low-voltage switchover has almost been transformed. Once the AVC transformation is completed, the response of the power grid will be improved. I think the large scale power rationing you havementioned is not a deliberate restriction on the part of the electricity network. This depends on the capacity of the local wind farm's grid connection point. Your grid connection point is 220 kV or 110 kV, and the capacity cannot exceed 100 kV. while wind farms in Northeast China and Inner Mongolia. The large one can reach 400,000 and the medium one can reach 200,000. The electricity consumption in the Northeast and Inner Mongolia is not so large when it is initially designed. , the trend of developing new energy is a national policy. The power grid can deploy wind farms, but it must comply with national policies. In line with the development trend, wind farms have been built in large numbers, but the power grid has not been kept up. or transformed in advance, leading to widespread energy rationing. At present, if the wind farm isbuilt near a 500kV main station, there will be almost no power rationing, that is, it will almost be the Spring Festival, because you can't influence it, and your total or zero production will have almost no impact on its voltage. I suggest you report this to your superiors. The location of the post is very important. Avoid the ends of these lines and be close to the main station! In addition, smart grids will come and bread will come.
This is mainly related to the inherent characteristics of wind energy.
For example: the stability and adaptability of wind power output voltage and power, including frequency stability.
Imagine an extreme situation: if a large capacity electricity grid is powered by wind energy. Wind energy and load change at any time. For the latter, of course. But for the first one, it dependsof the Wind God’s satisfaction – that’s simply not possible! Then, when a larger load comes on line, the power grid can collapse due to insufficient power. ...
Wind energy itself therefore has an impact on the stability of the electricity network. This is why a limit on the overall proportion is necessary.
As technology advances, an increase in this ratio is possible, but limitations are also necessary.