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Wind power plant active power scheduling method for guaranteeing flexible tower resonance ride-through

A technology of active power and scheduling method, which is applied in wind power generation, wind motor combination, wind engine, etc., can solve the problems of large torque and speed changes, difficult control of unit load, and easy resonance, etc., to reduce the load of wind turbines and improve Effects of improving safety and response speed

Active Publication Date: 2019-11-12
XEMC WINDPOWER CO LTD +1
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Problems solved by technology

Since the unit is in the speed range near the resonance speed point of the impeller, resonance is very easy to occur, and the torque and speed change greatly, so the load of the unit is not easy to control

Method used

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  • Wind power plant active power scheduling method for guaranteeing flexible tower resonance ride-through
  • Wind power plant active power scheduling method for guaranteeing flexible tower resonance ride-through
  • Wind power plant active power scheduling method for guaranteeing flexible tower resonance ride-through

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Embodiment Construction

[0020] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0021] The present invention will be further described in detail below in combination with specific embodiments.

[0022] Specifically, the flow chart of active power scheduling in the embodiment of the present invention is as follows figure 2 shown, including the following steps:

[0023] Step 1. Obtain the active power regulation target value X from the power dispatching system, and execute Step 2.

[0024] Step 2. If X>Y, Y is the total real-time active power of the whole field, execute Step 3; otherwise, execute Step 5.

[0025] Step 3. Classify the controllable fan according to priority 1,...

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Abstract

The invention discloses a wind power plant active power scheduling method for guaranteeing flexible tower resonance ride-through. The method comprises the following steps: obtaining an active power regulation and control target value from a power scheduling system; if the active power regulation and control target value is greater than the sum of the full-field real-time active power, dividing controllable fans into seven up-regulation priorities according to the real-time power and the propeller angle, and sequentially increasing the power of the fans until a full-field active power limit value reaches the active power regulation and control target value; if the active power regulation and control target value is less than a full-field real-time active power sum, dividing the active powerregulation and control target value into eight down-regulation priorities, sequentially decreasing the power of the fans until the full-field active power limit value reaches the active power regulation and control target value, and returning an active power set value of each fan to the power scheduling system. In the power scheduling process, it can be guaranteed that the fans smoothly pass through a resonance rotating speed interval, so the fans are prevented from staying in the resonance rotating speed interval; the frequencies of the fans passing through the resonance rotating speed interval are reduced, the loads of the fans are effectively reduced, and the safety of the fans are improved.

Description

technical field [0001] The invention belongs to the field of wind power generation, and in particular relates to a method for dispatching active power of a wind farm to ensure soft tower resonance crossing. Background technique [0002] At present, the transformation of energy and power continues to advance, and the adjustment of power supply structure is imperative. Wind power and photovoltaic power generation will be the fastest-growing types of power sources in my country, and my country's power source structure is developing in a cleaner and lower-carbon direction. Under the conventional transformation scenario, the installed capacity of onshore wind power will be 700 million kilowatts in 2035, and it will increase to 970 million kilowatts in 2050. Under the electrification scenario, the installed capacity of onshore wind power will be 830 million kilowatts in 2035, and will increase to 1.30 billion kilowatts in 2050. In 2035 and 2050, the installed capacity of offshor...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J3/38H02J3/46F03D7/00F03D9/25
CPCH02J3/46F03D9/25F03D7/00Y02E10/76Y02E10/72
Inventor 曾冰黄凌翔许可沈帅言曹俊伟
Owner XEMC WINDPOWER CO LTD
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