Wind power partition electricity price estimation method based on peak load regulation auxiliary service compensation
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A wind power and peak shaving technology, applied in wind power generation, electrical components, circuit devices, etc., can solve problems such as cost disconnection, wind curtailment and power limit
Inactive Publication Date: 2017-07-21
HUAZHONG UNIV OF SCI & TECH +1
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[0003] The present invention proposes a wind power price estimation method based on peak shaving auxiliary service compensation, which coordinates the wind power price and peak shaving compensation, satisfies the auxiliary service compensation principle of "who benefits, who bears", and solves the current wind power network price and peak shaving Disconnection of compensation costs and the problem of curtailment of wind and power rationing due to economic reasons
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example 1
[0057] image 3 , 4 Predict the power curve P of wind power for a certain day in a certain place in central China w (t) and load forecast curve P d (t), take this as an example for illustration.
[0058] 1. Collect the conventional technical parameters of the power grid at the receiving end, and obtain the start-up and shutdown plan of the thermal power unit for the next day U i (t), wind power forecast power curve P w (t) if image 3 , Grid load forecast curve P d (t) if Figure 4 , calculating the lower limit of technical output of the power grid system and the lower limit of free peak regulation;
[0059] The conventional technical parameters of the receiving end power grid include the total number of thermal power units N g , the output upper and lower limits P of each thermal power unit i i max ,P i min , up and down ramp rate R Ui , R Di , the lower limit of free peak shaving Pi TF ; Including the number of pumped storage units N p , the upper and lower l...
Embodiment 2
[0080] Figure 7 , 8 is the load forecast curve P for a certain day in a certain place in Central China d (t) and wind power forecast power curve P w (t), take this as an example for illustration.
[0081] 1. Collect the conventional technical parameters of the power grid at the receiving end, and obtain the start-up and shutdown plan of the thermal power unit for the next day U i (t), wind power forecast power curve P w (t) if Figure 7 , Grid load forecast curve P d (t) if Figure 8 , calculating the lower limit of technical output of the power grid system and the lower limit of free peak regulation;
[0082] The conventional technical parameters of the receiving end power grid include the total number of thermal power units N g , the upper and lower limits P of the technical output of each thermal power unit i i max ,P i min , up and down ramp rate R Ui , R Di , the lower limit of free peak shaving P i TF ; Including the number of pumped storage units N p , t...
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Abstract
The invention discloses a wind power partition electricity price estimation method based on peak load regulation auxiliary service compensation. According to the method, through collecting receiving-end power grid routine technology parameters, a power grid load prediction curve, a wind power prediction power curve and a power grid thermal power set start-stop plan are acquired, thermal power set deep peak load regulation cost and start-stop cost caused by wind power access and compensation cost of wind power peak load regulation participation of a pumped storage set are considered, the wind power curve is partitioned according to a required peak load regulation means, and electricity price estimation is carried out for different zones according to the corresponding peak load regulation auxiliary service compensation cost. The method is advantaged in that wind power partition is carried out according to wind power consumption difficulty and peak load regulation margin of a peak load regulation set, marginal cost benefits of the thermal power set and the pumped storage set for respectively participating in wind power peak load regulation consumption are considered to carry out wind power electricity price estimation, solution to a wind power abandon phenomenon because of peak load regulation cost is facilitated, reduction of wind power resource waste is facilitated, and economic benefits of a wind power set and a wind power plant can be improved.
Description
technical field [0001] The invention belongs to the field of electrical engineering, and in particular relates to a method for estimating electricity prices in wind power zones. Background technique [0002] As the energy crisis and environmental pollution become more and more serious, renewable energy represented by wind power has ushered in rapid development. As of the end of 2015, the cumulative installed capacity of wind power in my country reached 145,204MW, accounting for 33.6% of the global wind power share. Due to the characteristics of wind resources, the output power of wind farms has strong fluctuations and anti-peaking characteristics. Large-scale wind power access and consumption requires strong peaking capabilities of the power grid. At present, in China, the commonly used methods of paid peak regulation include pumped storage power station pumping peak regulation, thermal power unit deep operation peak regulation, thermal power unit start-stop peak regulation...
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