CN107546782A - A kind of evaluation method of the single-point access installed capacity of wind-driven power based on short circuit calculation - Google Patents
A kind of evaluation method of the single-point access installed capacity of wind-driven power based on short circuit calculation Download PDFInfo
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Abstract
The invention discloses a kind of evaluation method of the single-point access installed capacity of wind-driven power based on short circuit calculation, it comprises the following steps：Step 1, the equivalent short circuit impedance and capacity of short circuit of grid entry point are calculated；Step 2, the equiva lent impedance angle for calculating grid entry point；Step 3, the power factor angle for determining grid entry point and voltage pulsation；Step 4, the access installed capacity of wind-driven power for calculating grid entry point.The present invention can be according to different grid entry points, calculating the point allows the installed capacity of wind-driven power of access, when solving former single-point access wind-powered electricity generation, the problem of maximum access installed capacity of wind-driven power can not be determined, so as to relatively clearly and intuitively instruct single-point access wind-powered electricity generation installation size, the power network safety operation in the case of wind power integration ensure that.
Description
Technical Field
The invention relates to the technical field of wind power integration of a power system, in particular to a short circuit calculation-based estimation method for single-point access wind power installed capacity.
Background
The electric energy quality indexes of the electric power system mainly comprise the problems of voltage deviation, voltage fluctuation, voltage flicker and the like. With the large-scale integration of wind power, a wind power plant operated in a grid-connected mode may cause grid voltage fluctuation, and further, a perceptible flicker phenomenon may be caused. The main reason for this is the random variation characteristic of the wind speed and the influence of some inherent characteristics of the wind turbine generator itself, such as wind shear, tower shadow effect, blade gravity deviation and yaw error, which may cause voltage instability, and then frequency collapse and even system disconnection in severe cases.
For the above reasons, the maximum installed capacity of the wind farm allowed to be accessed for a certain grid-connected node in the power system is a relatively concerned problem in designing the grid-connection of the wind farm. At present, however, there is no unified conclusion about the scale of wind power that a certain grid-connected point can allow to be accessed. The short-circuit capacity ratio is defined as the ratio of the wind power capacity of the grid-connected point to the short-circuit capacity of the grid-connected point, the empirical short-circuit capacity ratio given by European countries is 3.3% -5%, Japanese scholars consider that the short-circuit capacity ratio is also allowable at about 10%, different countries have large understanding deviation on single-point access wind power installations, and no unified conclusion is made on how much single-point access wind power installations do not influence the safe and stable operation of a power grid.
Therefore, in order to ensure safe and stable operation of the power grid, an estimation scheme of wind power installed capacity with single-point access needs to be designed.
Disclosure of Invention
The invention provides a short circuit calculation-based estimation method for the installed capacity of single-point access wind power, which can ensure the safe and stable operation of a power grid, and aims to overcome the defect that the maximum installed capacity of an allowed access wind power plant cannot be determined by a certain grid-connected node in the conventional power system.
The technical scheme adopted for solving the technical problems is as follows:
on one hand, the estimation method for the installed capacity of the single-point access wind power based on the short circuit calculation comprises the following steps:
step 1, calculating equivalent short-circuit impedance and short-circuit capacity of a grid-connected point;
step 2, calculating an equivalent impedance angle of the grid-connected point;
step 3, determining power factor angles and voltage fluctuation of the grid-connected points;
and 4, calculating the installed capacity of the accessed wind power of the grid-connected point.
As a possible implementation manner of this embodiment, the specific process of step 1 is: utilizing simulation software of an electric power system, building a grid model around a grid-connected point of a wind power plant according to actual parameters of a transformer substation in a power grid, carrying out short-circuit calculation on the built grid around the grid-connected point of the wind power plant, and obtaining bus short-circuit capacity S of the grid-connected pointkAnd an equivalent short circuit impedance Z, which is:
Z＝R+jX
wherein R is resistance and X is reactance.
As a possible implementation manner of this embodiment, in step 2, an equivalent impedance angle θ is calculated according to the equivalent short-circuit impedance Z of the grid-connected point, where the calculation formula of the equivalent impedance angle θ is:
θ＝arctan(R/X)
wherein R is resistance and X is reactance.
As a possible implementation manner of this embodiment, in step 3, the power factor angle of the grid-connected point is determined according to the power factor and the voltage deviation required by the grid operation specificationAnd allowable voltage fluctuationAnd according to voltage fluctuationThe short circuit ratio is calculated.
As a possible implementation of this embodiment, the voltage fluctuationThe calculation formula of (2) is as follows:
wherein,is a voltage fluctuation; k is a radical ofsIs short-circuit ratio, i.e. installed capacity P of accessed wind power of grid-connected point and short-circuit capacity S of grid-connected pointkThe ratio of (A) to (B); theta is an impedance angle of the equivalent short-circuit impedance of the grid-connected point;is the power factor angle of the grid-connected point.
As a possible implementation manner of the embodiment, in step 4, the short-circuit ratio k is utilizedsAnd short circuit capacity SkCalculating the installed capacity P of the accessed wind power of the grid-connected point, namely P ═ ks×Sk。
As a possible implementation manner of this embodiment, when the power factor angle of the grid-connected point is 0, the maximum installed wind power capacity that the grid-connected point is allowed to access under the same allowable voltage fluctuation value can be obtained.
On the other hand, another estimation method for single-point access wind power installed capacity based on short circuit calculation provided by the embodiment of the invention performs short circuit calculation on a grid-connected point, and calculates the wind power installed capacity allowed to be accessed by the grid-connected point based on the short circuit calculation result.
As a possible implementation manner of this embodiment, the process of performing short circuit calculation on a grid-connected point includes the following steps:
calculating the equivalent short-circuit impedance and short-circuit capacity of the grid-connected point: utilizing simulation software of an electric power system, building a grid model around a grid-connected point of a wind power plant according to actual parameters of a transformer substation in a power grid, carrying out short-circuit calculation on the built grid around the grid-connected point of the wind power plant, and obtaining bus short-circuit capacity S of the grid-connected pointkAnd the equivalent short-circuit impedance Z has the calculation formula as follows: z ═ R + jX, where R is the resistance,X is reactance;
calculating the equivalent impedance angle of the grid-connected point: calculating an equivalent impedance angle theta according to the equivalent short circuit impedance Z of the grid-connected point, wherein the calculation formula of the equivalent impedance angle theta is as follows: θ ═ arctan (R/X), where R is resistance and X is reactance;
determining power factor angle and voltage fluctuation of the grid-connected point: determining a power factor angle of a grid-connected point according to power factors and voltage deviation required by power grid operation specificationsAnd allowable voltage fluctuationAnd according to voltage fluctuationCalculating a short circuit ratio; the voltage fluctuationThe calculation formula of (2) is as follows:wherein,is a voltage fluctuation; k is a radical ofsIs short-circuit ratio, i.e. installed capacity P of accessed wind power of grid-connected point and short-circuit capacity S of grid-connected pointkThe ratio of (A) to (B); theta is an impedance angle of the equivalent short-circuit impedance of the grid-connected point;is the power factor angle of the grid-connected point.
As a possible implementation manner of this embodiment, the process of calculating the installed wind power capacity allowed to be accessed by the grid-connected point based on the short circuit calculation result includes: using short-circuit ratio ksAnd short circuit capacity SkCalculating the installed capacity P of the accessed wind power of the grid-connected point, namely P ═ ks×Sk。
The technical scheme of the embodiment of the invention has the following beneficial effects:
the technical scheme of the embodiment of the invention comprises the steps of firstly calculating the equivalent short-circuit impedance and the short-circuit capacity of a grid-connected point and the equivalent impedance angle of the grid-connected point; then determining the power factor angle and voltage fluctuation of the grid-connected point and calculating the short-circuit ratio; and finally, calculating the installed capacity of the accessed wind power of the grid-connected point according to the short circuit calculation result of the grid-connected point. According to the technical scheme of the embodiment of the invention, the installed capacity of the wind power allowed to be accessed at the point can be calculated according to different grid-connected points, and the problem that the maximum installed capacity of the wind power can not be determined when the wind power is accessed at a single point in the prior art is solved, so that the installed size of the wind power accessed at the single point can be clearly and visually guided, and the safe and stable operation of a power grid under the condition of wind power access is ensured.
Drawings
FIG. 1 is a flow diagram illustrating a short circuit calculation based estimation method for wind installed capacity for single point access, according to an exemplary embodiment;
FIG. 2 is a schematic diagram illustrating a grid model around a wind farm grid connection point according to an exemplary embodiment.
Detailed Description
In order to clearly explain the technical features of the present invention, the following detailed description of the present invention is provided with reference to the accompanying drawings. The following disclosure provides many different embodiments, or examples, for implementing different features of the invention. To simplify the disclosure of the present invention, the components and arrangements of specific examples are described below. Furthermore, the present invention may repeat reference numerals and/or letters in the various examples. This repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed. It should be noted that the components illustrated in the figures are not necessarily drawn to scale. Descriptions of well-known components and processing techniques and procedures are omitted so as to not unnecessarily limit the invention.
Example 1
Fig. 1 is a flowchart illustrating a method for estimating installed capacity of single-point access wind power based on short circuit calculation according to an exemplary embodiment. As shown in fig. 1, an estimation method for wind installed capacity based on single point access of short circuit calculation provided by the embodiment of the present invention includes the following steps:
step 1, calculating the equivalent short-circuit impedance and short-circuit capacity of the grid-connected point. Utilizing BPA power system simulation software, building a grid model around a grid-connected point of a wind power plant according to actual parameters of a bus, a transformer, a transmission line, a power plant bus, a transformer, a unit and the like of a transformer substation in a power grid (the grid model comprises a grid of a wind power plant access voltage level and a higher voltage level or an equivalent grid), building a grid model for a grid-connected point station 3 of the wind power plant A and peripheral stations 1 and 2 thereof, performing short-circuit calculation on a built grid around the grid-connected point of the wind power plant by utilizing a BPA middle short-circuit calculation function, and acquiring bus short-circuit capacity S of the grid-connected pointkAnd an equivalent short circuit impedance Z ═ R + jX, where R is resistance and X is reactance.
And 2, calculating the equivalent impedance angle of the grid-connected point. An equivalent impedance angle θ, i.e., θ ═ arctan (R/X), is calculated from the equivalent short circuit impedance Z of the grid-connected point.
And 3, determining the power factor angle and the voltage fluctuation of the grid-connected point. Determining the power factor angle of the grid-connected point according to the power factor and voltage deviation range required by the power grid operation specification and by combining the actual operation condition of the power gridAnd allowable voltage fluctuationAnd according to voltage fluctuationA short-circuit ratio is calculated, wherein,is a voltage fluctuation; k is a radical ofsIs short-circuit ratio, i.e. installed capacity P of accessed wind power of grid-connected point and short-circuit capacity S of grid-connected pointkThe ratio of (A) to (B); theta is an impedance angle of the equivalent short-circuit impedance of the grid-connected point;is the power factor angle of the grid-connected point. For example, if the grid operation requires a power factor of not less than 0.95 and a voltage deviation of not more than 10%, it can be determined that the power factor angle is 18.2 ° and the voltage fluctuation is 0.1.
And 4, calculating the installed capacity of the accessed wind power of the grid-connected point. According to the constructed formulaThe short-circuit ratio k is obtained by utilizing the parameters of the determined power factor angle, short-circuit impedance angle, voltage fluctuation and the likes(ii) a According to short-circuit capacity SkThe installed capacity P of the accessed wind power, which is allowed to be connected to the grid at the grid connection point, can be obtained, namely P ═ ks×Sk。
In a possible implementation manner, when the power factor angle of the grid-connected point is 0, the maximum installed wind power capacity allowed to be accessed by the grid-connected point under the condition of the same allowed voltage fluctuation value can be obtained.
Example 2
The estimation method for the single-point access wind power installed capacity based on the short circuit calculation comprises the steps of firstly carrying out short circuit calculation on a grid-connected point, and then calculating the wind power installed capacity allowed to be accessed by the grid-connected point based on a short circuit calculation result.
In a possible implementation manner, the process of performing short circuit calculation on the grid-connected point includes the following steps:
calculating the equivalent short-circuit impedance and short-circuit capacity of the grid-connected point: utilizing simulation software of an electric power system, building a grid model around a grid-connected point of a wind power plant according to actual parameters of a transformer substation in a power grid, carrying out short-circuit calculation on the built grid around the grid-connected point of the wind power plant, and obtaining bus short-circuit capacity S of the grid-connected pointkAnd an equivalent short circuit impedance Z, which is R + jX, where R is resistance and X is reactance;
calculating the equivalent impedance angle of the grid-connected point: calculating an equivalent impedance angle theta according to the equivalent short circuit impedance Z of the grid-connected point, wherein the calculation formula of the equivalent impedance angle theta is as follows: θ ═ arctan (R/X), where R is resistance and X is reactance;
determining power factor angle and voltage fluctuation of the grid-connected point: determining a power factor angle of a grid-connected point according to power factors and voltage deviation required by power grid operation specificationsAnd allowable voltage fluctuationAnd according to voltage fluctuationCalculating a short circuit ratio; the voltage fluctuationThe calculation formula of (2) is as follows:wherein,is a voltage fluctuation; k is a radical ofsIs short-circuit ratio, i.e. installed capacity P of accessed wind power of grid-connected point and short-circuit capacity S of grid-connected pointkRatio of (A to B)(ii) a Theta is an impedance angle of the equivalent short-circuit impedance of the grid-connected point;is the power factor angle of the grid-connected point.
In a possible implementation manner, the process of calculating the installed wind power capacity allowed to be accessed by the grid-connected point based on the short circuit calculation result is as follows: using short-circuit ratio ksAnd short circuit capacity SkCalculating the installed capacity P of the accessed wind power of the grid-connected point, namely P ═ ks×Sk。
The method comprises the steps of firstly, calculating the equivalent short-circuit impedance and the short-circuit capacity of a grid-connected point and the equivalent impedance angle of the grid-connected point; then determining the power factor angle and voltage fluctuation of the grid-connected point and calculating the short-circuit ratio; and finally, calculating the installed capacity of the accessed wind power of the grid-connected point according to the short circuit calculation result of the grid-connected point. According to the method, the installed capacity of the wind power allowed to be accessed at the point can be calculated according to different grid-connected points, and the problem that the maximum installed capacity of the wind power can not be determined when the wind power is accessed at a single point in the prior art is solved, so that the installed size of the wind power accessed at the single point can be clearly and visually guided, and the safe and stable operation of a power grid under the condition of wind power access is ensured.
The foregoing is only a preferred embodiment of the present invention, and it will be apparent to those skilled in the art that various modifications and improvements can be made without departing from the principle of the invention, and such modifications and improvements are also considered to be within the scope of the invention.
Claims (10)
1. A method for estimating the installed capacity of single-point access wind power based on short circuit calculation is characterized by comprising the following steps:
step 1, calculating equivalent short-circuit impedance and short-circuit capacity of a grid-connected point;
step 2, calculating an equivalent impedance angle of the grid-connected point;
step 3, determining power factor angles and voltage fluctuation of the grid-connected points;
and 4, calculating the installed capacity of the accessed wind power of the grid-connected point.
2. The short circuit calculation-based estimation method for the installed capacity of the single-point access wind power generation device according to claim 1, wherein the specific process of the step 1 is as follows: utilizing simulation software of an electric power system, building a grid model around a grid-connected point of a wind power plant according to actual parameters of a transformer substation in a power grid, carrying out short-circuit calculation on the built grid around the grid-connected point of the wind power plant, and obtaining bus short-circuit capacity S of the grid-connected pointkAnd an equivalent short circuit impedance Z, which is:
Z＝R+jX
wherein R is resistance and X is reactance.
3. The short circuit calculation-based estimation method for installed capacity of single-point access wind power generation as claimed in claim 2, wherein in step 2, an equivalent impedance angle θ is calculated according to an equivalent short circuit impedance Z of a grid-connected point, and a calculation formula of the equivalent impedance angle θ is as follows:
θ＝arctan(R/X)
wherein R is resistance and X is reactance.
4. The short circuit calculation-based estimation method for installed capacity of single-point access wind power generation as claimed in claim 3, wherein in step 3, the power factor angle of the grid-connected point is determined according to the power factor and voltage deviation required by the grid operation specificationAnd allowable voltage fluctuationAnd according to voltage fluctuationThe short circuit ratio is calculated.
5. The single-point access wind power installation capacitor based on short circuit calculation of claim 4Method for estimating a quantity, characterized in that said voltage fluctuatesThe calculation formula of (2) is as follows:
wherein,is a voltage fluctuation; k is a radical ofsIs short-circuit ratio, i.e. installed capacity P of accessed wind power of grid-connected point and short-circuit capacity S of grid-connected pointkThe ratio of (A) to (B); theta is an impedance angle of the equivalent short-circuit impedance of the grid-connected point;is the power factor angle of the grid-connected point.
6. The short circuit calculation-based estimation method for wind power installed capacity with single point access as claimed in claim 5, wherein in step 4, short circuit ratio k is usedsAnd short circuit capacity SkCalculating the installed capacity P of the accessed wind power of the grid-connected point, namely P ═ ks×Sk。
7. The short circuit calculation-based estimation method for installed capacity of single-point access wind power as claimed in any one of claims 1 to 6, wherein when the power factor angle of the grid-connected point is 0, the maximum installed capacity of wind power allowed to be accessed by the grid-connected point under the same allowed voltage fluctuation value can be obtained.
8. A method for estimating the installed capacity of single-point access wind power based on short circuit calculation is characterized in that short circuit calculation is carried out on a grid-connected point, and the installed capacity of the wind power allowed to be accessed by the grid-connected point is calculated based on the short circuit calculation result.
9. The short circuit calculation-based estimation method for installed capacity of single-point access wind power generation as claimed in claim 8, wherein the short circuit calculation process for the grid-connected point comprises the following steps:
calculating the equivalent short-circuit impedance and short-circuit capacity of the grid-connected point: utilizing simulation software of an electric power system, building a grid model around a grid-connected point of a wind power plant according to actual parameters of a transformer substation in a power grid, carrying out short-circuit calculation on the built grid around the grid-connected point of the wind power plant, and obtaining bus short-circuit capacity S of the grid-connected pointkAnd the equivalent short-circuit impedance Z has the calculation formula as follows: z ═ R + jX, where R is the resistance and X is the reactance;
calculating the equivalent impedance angle of the grid-connected point: calculating an equivalent impedance angle theta according to the equivalent short circuit impedance Z of the grid-connected point, wherein the calculation formula of the equivalent impedance angle theta is as follows: θ ═ arctan (R/X), where R is resistance and X is reactance;
determining power factor angle and voltage fluctuation of the grid-connected point: determining a power factor angle of a grid-connected point according to power factors and voltage deviation required by power grid operation specificationsAnd allowable voltage fluctuationAnd according to voltage fluctuationCalculating a short circuit ratio; the voltage fluctuationThe calculation formula of (2) is as follows:wherein,is a voltage fluctuation; k is a radical ofsIs short-circuit ratio, i.e. installed capacity P of accessed wind power of grid-connected point and short-circuit capacity S of grid-connected pointkThe ratio of (A) to (B); theta is an impedance angle of the equivalent short-circuit impedance of the grid-connected point;is the power factor angle of the grid-connected point.
10. The short circuit calculation-based estimation method for wind power installed capacity with single point access according to claim 9, wherein the short circuit calculation-based process for calculating the wind power installed capacity allowed to be accessed by the grid-connected point comprises: using short-circuit ratio ksAnd short circuit capacity SkCalculating the installed capacity P of the accessed wind power of the grid-connected point, namely P ═ ks×Sk。
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110729757A (en) * | 2019-09-18 | 2020-01-24 | 国网江苏省电力有限公司 | System and method for determining grid-connected capacity of near-direct-current drop point wind power plant |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102347614A (en) * | 2011-09-26 | 2012-02-08 | 武汉大学 | Voltage stability analyzing method and device based on short circuit capacity |
| CN105098842A (en) * | 2015-08-12 | 2015-11-25 | 国网山东省电力公司电力科学研究院 | Wind farm integration capacity determination method in consideration of voltage constraints |
| CN105356508A (en) * | 2015-12-03 | 2016-02-24 | 国家电网公司 | PSD-BPA-based power grid wind power integration evaluation system and method |
| CN106786734A (en) * | 2016-12-13 | 2017-05-31 | 国家电网公司 | Power grid wind accesses site selecting method |
-
2017
- 2017-10-24 CN CN201711002662.2A patent/CN107546782A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102347614A (en) * | 2011-09-26 | 2012-02-08 | 武汉大学 | Voltage stability analyzing method and device based on short circuit capacity |
| CN105098842A (en) * | 2015-08-12 | 2015-11-25 | 国网山东省电力公司电力科学研究院 | Wind farm integration capacity determination method in consideration of voltage constraints |
| CN105356508A (en) * | 2015-12-03 | 2016-02-24 | 国家电网公司 | PSD-BPA-based power grid wind power integration evaluation system and method |
| CN106786734A (en) * | 2016-12-13 | 2017-05-31 | 国家电网公司 | Power grid wind accesses site selecting method |
Non-Patent Citations (2)
| Title |
|---|
| 徐凌飞: "风电场装机容量与配电网短路容量的关系", 《衡水学院学报》 * |
| 王伟胜等: "风电场最大装机容量和电网短路容量的关系", 《国际电力》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110729757A (en) * | 2019-09-18 | 2020-01-24 | 国网江苏省电力有限公司 | System and method for determining grid-connected capacity of near-direct-current drop point wind power plant |
| CN110729757B (en) * | 2019-09-18 | 2021-11-02 | 国网江苏省电力有限公司 | System and method for determining grid-connected capacity of near-direct-current drop point wind power plant |
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