Active/reactive power control system of intelligent wind power station

Abstract

The invention provides an active / reactive power control system of an intelligent wind power station. The active / reactive power control system comprises an information collection module, an order receiving module, an AGC (Automatic Gain Control) module, an AVC (Automatic Volume Control) module and an order issuing module; a power grid dispatching system respectively issues orders to the AGC module and the AVC module through the order receiving module; and the AGC module and the AVC module respectively calculate an active target value of an air blower and reactive target values of the air blower and a static reactive compensating device by respectively collecting remote-metering and remote-signaling information and a dispatch issuing order of the equipment through the information collection module, and issuing a calculation result to the air blower and the static reactive compensating device through the order issuing module. The active / reactive distribution distributes according to regulation capability of the single air blower; reactive regulation uses the strategy that the static reactive compensating device is prior to the air blower; the static reactive compensating device is much faster and more accurate than the air blower in the response speed, so that the reactive regulation can be rapidly and accurately responded; and moving average is carried out on real-time data, so as to filter values with large fluctuation. Therefore, the algorithm is more accurate.

Description

technical field [0001] The invention belongs to the technical field of wind farm control, and in particular relates to an intelligent wind farm active and reactive power control system. Background technique [0002] Active and reactive power control of wind farms is still in its infancy. Active and reactive power control has been very mature in traditional power generation industries such as thermal power and hydropower, but it still faces many problems in the emerging wind power industry. Due to the instability of wind resources and other characteristics, the active and reactive power control of wind power is much more complicated and difficult than other power generation industries. At present, the active and reactive power control of many domestic wind farms is carried out manually, and the strategy of equal distribution is mostly adopted. There are many disadvantages of manual control, such as long response time, unreasonable distribution, high error rate, and high lab...

AI Technical Summary

Problems solved by technology

There are many disadvantages of manual control, such as long response time, unreasonable allocation, high error rate, high labor cost, etc.

The average distribution strategy is easy to implement, but the distribution is unreasonable, and the power generation capacity of each wind turbine cannot be fully utilized, and it also poses a major threat to the safe and reliable operation of the power grid

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