Method for estimating the installation benefit of fan tower lifter based on the utilization of abandoned air

A technology for elevators and fan towers, which is applied in the field of estimating the installation benefits of fan towers and elevators, can solve problems such as low maintenance efficiency of hidden safety hazards in life and so on.

Inactive Publication Date: 2018-12-18
XINJIANG UNIVERSITY
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  • Application Information

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Problems solved by technology

The installation of high-power wind turbines in my country is increasing year by year, and the average height is more than 80 mete

Method used

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  • Method for estimating the installation benefit of fan tower lifter based on the utilization of abandoned air
  • Method for estimating the installation benefit of fan tower lifter based on the utilization of abandoned air
  • Method for estimating the installation benefit of fan tower lifter based on the utilization of abandoned air

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Experimental program
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Effect test

Embodiment 1

[0077] Based on the wind turbine tower elevator installation benefit estimation method based on the utilization of abandoned wind, the statistics of the abandoned wind power include the following steps:

[0078] Step 1: Statistics of abandoned wind power

[0079] Using the analysis of probability distribution and time series, the probability of each stage of curtailment of wind power between 10:00-20:00 every day is counted;

[0080] (1) Taking the abandoned wind power during the period of 10:00-20:00 every day as a data unit, set W max It is the maximum value of abandoned wind power. It is stipulated that ΔW represents the interval of abandoned wind power. Generally, ΔW=0.1Wmax is used, and S is used to represent 10 stages of abandoned wind power within the data collection range. If W is within 10:00-20:00 For any value of wind power, there is W∈{ΔW(i-1),ΔW·i};

[0081] Probability distribution is used to calculate the probability of each stage of wind power abandonment, an...

Embodiment 2

[0152] All the data in this example come from a wind farm in Dabancheng, Xinjiang. The installed capacity of the wind farm is 50MW, and there are 25 wind turbines of 2MW. At present, elevators are installed in some wind turbines. For the convenience of checking and calculation, it is assumed that all 25 wind turbines are installed Analysis with lift:

[0153] 1. Statistics of abandoned wind power:

[0154] Through MATLAB software programming, the data of the wind farm for one year is processed, and the probability distribution of each wind curtailment stage in the time period of 10:00-20:00 within a year is obtained, and the result is shown in Figure (3):

[0155] from above image 3 It can be seen that the phase of wind curtailment is mainly concentrated between 1T-4T, and the maximum value of wind power curtailment during working hours is 448.9 MW. Calculated by formula (2), the power curtailment of wind farms in the daily 10:00-20:00 time period is about It is 124.8MW. If...

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Abstract

The invention belongs to the technical field of electric power planning, and relates to a method for estimating the installation benefit of a wind turbine tower lifter based on the utilization of abandoned wind. The method comprises the following steps: statistics of abandoned wind power, evaluation of input amount of maintenance personnel, evaluation of operation times and quantification of energy consumption of the lifter, and cost of a wind farm-benefit modeling. Through the analysis of the four aspects, it is concluded that the tower drum elevator after installation can on the one hand absorb abandoned wind to avoid energy waste, on the other hand, it can ensure the life safety of the staff and improve the maintenance efficiency of the fan.

Description

technical field [0001] The invention belongs to the technical field of electric power planning, and relates to a method for estimating the installation benefits of wind turbine tower lifts based on abandoned wind utilization. Background technique [0002] Since the implementation of the "Renewable Energy Law" in 2006, my country's wind power industry has continued to develop rapidly. However, due to the randomness of wind power and the excess installed capacity of power, the integration of large-scale wind power into the grid will increase the difficulty of grid dispatching and increase the cost of system operation, resulting in serious wind power curtailment and wind abandonment in wind farms. In addition, in the case of power limitation, the power generation value of the wind farm connected to the grid is lower than the power limit value issued by the dispatching center from time to time, which further reduces the utilization rate of wind resources. One of the reasons for...

Claims

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Application Information

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IPC IPC(8): G06F17/18G06Q50/06
CPCG06F17/18G06Q50/06
Inventor 谢丽蓉牛永朝王智勇郭涛李进卫陈贵晁勤王晋瑞
Owner XINJIANG UNIVERSITY
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