As a clean and renewable energy source, wind power has been widely used around the world. However, the operation of a wind power grid-connected power generation system can be affected by many factors, one of which is the voltage problem.
In wind power systems, voltage is a very important parameter. Since wind farms are often far from the load center, they need to deliver power to their destination via long-distance transmission lines. In this process, the wind farm outlet voltage may fluctuate or shift due to the impedance and inductive reactance of the line. Therefore, in order to ensure the stability and reliability of the wind power grid-connected power generation system, it is usually necessary to set a certain voltage level on the low-voltage side to ensure the normal operation of the system.
In wind power systems, 069kV is a relatively common low-voltage side voltage level. The selection of this voltage level is mainly based on the following aspects:
1.Compatibility: 0The 69kV voltage level matches the voltage level of the distribution system in many countries and regions, so it is easy to connect wind power into the distribution network.
2.Stability: In wind power systems, 0The voltage level of 69kV is relatively stable and not easily affected by external factors, which can ensure the normal operation of the system.
3.Economy: 0The voltage level of 69kV is relatively low, so it can reduce costs and improve economic benefits in equipment selection and circuit design.
4.Safety: In wind power systems, 0The voltage level of 69kV is relatively low, which can reduce the threat to personal safety and improve the safety of the system.
To sum up, the low-voltage side voltage in the wind power system is selected as 069kV is mainly based on compatibility, stability, economy and safety considerations. This option ensures the stability and reliability of the grid-connected wind power generation system, while reducing costs and improving safety.