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Pumped storage operation state optimization method in dispatching of multi-source power system containing wind storage

A power system dispatching and pumped storage technology, which is applied in the storage of electric energy systems, wind power generation, electrical components, etc., can solve problems such as waste of pumped storage resources, difficulty in solving discrete integer variables and continuous variables at the same time, and reduce Effects of uncertainty, smoothing wind power fluctuations, and simplifying the optimization process

Pending Publication Date: 2020-12-18
XIAN UNIV OF TECH
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Problems solved by technology

[0005] The purpose of the present invention is to provide a method for optimizing the operation state of pumped storage in multi-source power system scheduling with wind storage, which solves the waste of pumped storage resources in the prior art and the discrete integer variables and continuous variables in the scheduling model Simultaneously solve more difficult problems

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  • Pumped storage operation state optimization method in dispatching of multi-source power system containing wind storage
  • Pumped storage operation state optimization method in dispatching of multi-source power system containing wind storage
  • Pumped storage operation state optimization method in dispatching of multi-source power system containing wind storage

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Embodiment Construction

[0036]The present invention will be described in detail below with reference to the drawings and specific embodiments.

[0037]The method for optimizing the operation state of pumped-storage energy in the dispatch of a multi-source power system with wind storage according to the present invention, the process is asfigure 1 As shown, the specific implementation is as follows:

[0038]Step 1. Calculate the net load value of wind power in each dispatch period tt=1,2,...,T, T represents the total number of scheduling periods in the entire scheduling period;

[0039]Step 2. Net load value of each scheduling period t calculated according to step 1Calculate the average value of the net load of the entire scheduling period

[0040]Step 3, calculated according to step 1And step 2 calculatedCalculate the standard deviation of the net load of the entire scheduling period

[0041]Step 4. Calculate the net load of each periodAnd meanDeviation

[0042]Step 5. Define the deviation threshold δ according to the rated...

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Abstract

The invention discloses a pumped storage operation state optimization method in dispatching of a multi-source power system containing wind storage, which is specifically implemented according to the following steps: step 1, calculating a net load value after wind power is accessed to a network in each dispatching time period t; step 2, calculating a mean value of net loads in the whole dispatchingperiod; step 3, calculating standard deviation of net load in whole scheduling period; step 4, calculating the deviation between the net load of each time period and the mean value; step 5, defininga deviation threshold value delta according to the rated operation capability of pumped storage and the degree of deviation between the net load and the mean value; step 6, determining the operation state of pumped storage in the corresponding time period according to the deviation degree of the net load in each time period from the mean value. The invention discloses a pumped storage operation state optimization method in dispatching of a multi-source power system containing wind storage, and solves the problems of pumped storage resource waste and difficulty in solving discrete integer variables and continuous variables in a dispatching model at the same time in the prior art.

Description

Technical field[0001]The invention belongs to the technical field of power system operation control methods, and relates to a method for optimizing the operation state of pumped storage in multi-source power system dispatching with wind storage.Background technique[0002]In the context of the current energy transition, new energy power generation represented by wind power has developed rapidly. However, wind power has the characteristics of random intermittent and reverse peak regulation, which brings new challenges to the safe and stable operation of the power grid. Pumped storage is known as the best peak-shaving power source for wind power. The traditional operation method of pumped storage is "peak-shaving and valley-filling". It generates electricity during the peak period of the load curve and pumps water during the trough period. Under the incentive mechanism of the peak-valley price difference Ensure the economic benefits of pumped storage. However, with the increase in the s...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06Q10/04G06Q50/06H02J3/28H02J15/00
CPCG06Q10/04G06Q50/06H02J3/28H02J15/003H02J2203/20Y02E10/76Y02E70/30
Inventor 王开艳贾嵘周承文王娇何伟同颛孙旭
Owner XIAN UNIV OF TECH
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