World Wind Power Network News: At present, China's power system has a high proportion of coal and electricity, and in some regions it is mainly heating units with poor peak shaving capacity. Nuclear power has developed rapidly but it has not been able to participate in peak shaving, and hydropower and gas-fired power generation have peaked. The proportion of power supplies with superior performance is too low, resulting in the weak ability of existing power systems to accept new energy sources. At the same time, China's energy resources are located far away from the load, and they have to implement large-scale centralized development of wind power and optoelectronics and transport them over long distances, which further increases the risk of power grid operation and control. With the rapid expansion of the domestic new energy power generation scale, the contradiction between the power grid and new energy sources has become increasingly prominent.
The inherent randomness, intermittentity, and uncontrollability of green new energy sources such as photovoltaic power generation, wind power generation, etc., make it impossible for renewable energy power plants to formulate and implement accurate power generation plans similar to other conventional power supplies. The dispatching brings tremendous pressure; at the same time, the reactive power voltage and frequency problems and power quality problems caused by the large-scale access of renewable energy can not be ignored, and it will bring significant changes to the peaking of the power grid and the safe operation of the system. influences.
Flywheel energy storage technology can solve the problem of randomness and volatility of new energy power generation to a large extent. It can realize smooth output of new energy power generation and effectively regulate the changes in grid voltage, frequency, and phase caused by new energy generation, and make it large-scale. Wind power and solar power are easily and reliably incorporated into the conventional grid to reduce greenhouse gas emissions. Source: Polaris Power Network
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