A wind farm spinning reserve capacity optimization method considering rotor inertial kinetic energy

Abstract

The invention discloses a wind power farm spinning reserve capacity optimization method considering rotor inertia kinetic energy. Rotor inertia kinetic energy is brought into spinning reserve capacity, a reserve optimization operation mode and a dispatching optimization operation mode are built, a wind power farm control center selects the operation modes according to dispatching instructions issued by a dispatching master station, calculates and acquires optimization results and finally issues the optimization results to wind turbine groups, and wind turbine generators in the wind turbine groups execute the operation modes. The potential of frequency adjustment or emergency reserve of the rotor inertia kinetic energy can be maximally mined, wind curtailment capacity can be minimized when the reserve optimization operation mode is executed in a common operation scene of a wind power farm, considerable economic benefits are brought for wind power farm businessmen, spinning reserve capacity is maximized when the dispatching optimization operation mode is executed, and particularly, the method plays a very positive role in stable operation of a power grid when the power grid runs short of the spinning reserve capacity.

Description

technical field [0001] The invention relates to a method for optimizing the rotating reserve capacity of a wind farm considering the inertial kinetic energy of a rotor, and belongs to the technical field of wind farms. Background technique [0002] At present, domestic and foreign countries have begun to devote themselves to the research on the spinning reserve control technology of wind turbines and even the whole wind farm. On July 10, 2014, "Power System Automation", Volume 38, Issue 13, published the document "Decision Model and Method for Power System Spinning Reserve Risks Including Large-Scale Wind Farms". The influence and its nature were analyzed. Although this method can fully mobilize the control performance of the generator set, it still belongs to the traditional scheduling algorithm and does not consider the rotor inertial kinetic energy stored in the wind turbine as a rotating reserve. According to the latest research and actual test results, the considerable...

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Problems solved by technology

On July 10, 2014, "Power System Automation", Volume 38, Issue 13, published the document "Decision Model and Method for Power System Spinning Reserve Risks Including Large-Scale Wind Farms". The influence and its nature of the wind turbine were analyzed. Although this method can fully mobilize the control performance of the generator set, it still belongs to the traditional scheduling algorithm, and does not consider the rotor inertial kinetic energy stored in the wind turbine as a rotating reserve.

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