New Progress of Technology for Wind Power Access to Power Grid

Because of uncertainty and the mutability of wind power, big proportion wind power access to the power grid can influence its operation, dispatching and stability. The paper introduced the factors that need to consider for wind power field access to power grid, and analyzed the technologies of wind power field access to power grid and its control including regulation of reactive power capacity, low voltage crossing, reducing output and regulation of changing rate of active power. The newest technology of wind power access to power grid can control reactive and active power of entire wind power field, regulate the voltage of points of access to power grid, which makes wind power field access to power grid under the fault condition of power grid, and has important role for power grid to accept high proportion wind power.