CN110739698A - 10kV bus voltage and public distribution transformer outlet voltage allocation method and system - Google Patents
10kV bus voltage and public distribution transformer outlet voltage allocation method and system Download PDFInfo
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Abstract
The invention provides a method and a system for allocating voltage of types of 10kV buses and voltage of a public distribution transformer outlet, the method comprises the steps of S1, respectively setting voltage sampling points at a plurality of typical public distribution transformer outlets of a 10kV public line of a transformer substation, S2, collecting the voltage of the 10kV bus sampling points of the transformer substation through a dispatching automation system, collecting the voltage of each typical public distribution transformer voltage sampling point through an electricity information collection system, generating a transmission transformation voltage model according to corresponding distribution transformer gears and the distance between the 10kV bus of the transformer substation and the voltage sampling points, S3, regulating the actual voltage value of the 10kV bus of a phase-dependent transformer substation through the dispatching automation system according to the standard range of the voltage of the public distribution transformer outlet and the transmission transformation voltage model, and S4, correcting the transmission transformation voltage model until the outlet voltage of the public distribution transformer meets the standard voltage value.
Description
Technical Field
The invention belongs to the technical field of voltage distribution of transformer substations, and particularly relates to a method and a system for distributing types of 10kV bus voltages and public distribution transformer outlet voltages.
Background
The electric energy is converted into 10kV bus voltage through a transformer substation, is transmitted through a 10kV line, is converted into 220V or 380V through a 0.4kV distribution transformer and then is directly supplied to a user. According to the requirements of the row standard, the qualified range of the voltage of a 10kV bus of the transformer substation is 10 kV-10.7 kV, and the qualified range of the 220V single-phase power supply voltage is 198V-235.4V. However, in operation, the 10kV bus voltage of the transformer substation operates in a high level of a qualified range, but the outlet voltage of the 0.4kV distribution transformer operates over 235.4V for a long time, namely, the overvoltage of a low-voltage user occurs.
This is a disadvantage of the prior art, and therefore, it is necessary to provide methods and systems for adjusting the 10kV bus voltage and the outlet voltage of the utility distribution transformer.
Disclosure of Invention
Aiming at the defects that the 10kV bus voltage of the transformer substation in the prior art runs in a high position in a qualified range, but the outlet voltage of a 0.4kV distribution transformer runs for a long time exceeding 235.4V, the invention provides a method and a system for allocating kinds of 10kV bus voltages and public distribution transformer outlet voltages, so as to solve the technical problems.
, the invention provides a method for matching kinds of 10kV bus voltage with public distribution transformer outlet voltage, which comprises the following steps:
s1, respectively setting voltage sampling points at a plurality of typical public distribution transformer outlets of a 10kV public line of a transformer substation;
s2, acquiring voltage of a 10kV bus voltage sampling point of the transformer substation through a dispatching automation system, acquiring voltage of each typical public distribution transformer voltage sampling point through an electricity utilization information acquisition system, and generating a transmission transformation voltage model according to a corresponding distribution transformer gear and the distance between the 10kV bus of the transformer substation and the voltage sampling point;
s3, adjusting the actual voltage value of the 10kV bus of the corresponding substation through a dispatching automation system according to the standard range of the public distribution transformer outlet voltage and a transmission transformation voltage model;
and S4, correcting the transmission transformation voltage model until the outlet voltage of the public distribution transformer meets the standard voltage value.
, the step S1 includes the following steps:
s11, setting voltage sampling points on a 10kV bus of the transformer substation;
s12, respectively setting voltage sampling points at a plurality of typical public distribution transformer outlets of a corresponding 10kV public line of a transformer substation;
s13, acquiring the length of a transmission line between a 10kV bus of the transformer substation and a typical public distribution transformer;
s14, obtaining basic information and operation information of a typical public distribution transformer gear. And setting voltage sampling points at a plurality of typical public distribution transformer outlets according to actual needs.
, the step S2 includes the following steps:
s21, connecting a 10kV bus voltage sampling point of the transformer substation with a dispatching automation system;
s22, connecting each typical public distribution transformer outlet voltage sampling point with an electricity utilization information acquisition system;
s23, acquiring the voltage of a 10kV bus of the transformer substation through a dispatching automation system;
s24, collecting voltage of each typical public distribution transformer outlet voltage sampling point through a power utilization information collection system;
and S25, generating a transmission transformation voltage model according to the 10kV bus voltage of the transformer substation, the voltage of each typical common distribution transformer outlet voltage sampling point and the length of the transmission line. The power utilization information acquisition system is used for acquiring and monitoring common voltage data.
, the step S3 includes the following steps:
s31, obtaining a maximum allowed voltage value of a typical common distribution transformer outlet;
s32, calculating the maximum initial voltage value of the 10kV bus according to the transmission transformation voltage model;
and S33, adjusting the gear of a main transformer of the transformer substation or switching a capacitor bank through a voltage automatic control module of the dispatching automation system to enable the difference between the initial output value of the voltage of the 10kV bus of the transformer substation and the maximum initial voltage value to be a set difference value. Typically, the common distribution outlet voltage is low below 198V and over 235.4V.
, the step S4 includes the following steps:
s41, after the voltage output of the 10kV bus of the transformer substation is adjusted, whether the typical public distribution transformer outlet voltage is larger than the allowable maximum value of the typical public distribution transformer outlet voltage is obtained and judged;
s42, if yes, correcting the transmission conversion voltage model, and returning to the step S32;
and if not, judging that the typical common distribution transformer outlet voltage meets the standard, and storing the transmission transformation voltage model and the adjustment of the dispatching automation system on the 10kV bus voltage of the transformer substation. And continuously correcting the transmission transformation voltage model until the continuous overvoltage phenomenon does not occur at the voltage of the public distribution transformation outlet.
In a second aspect, the present invention provides an system for adjusting 10kV bus voltage and public distribution transformer outlet voltage, including:
the voltage sampling point setting module is used for respectively setting voltage sampling points at a plurality of typical public distribution transformer outlets of a 10kV public line of a transformer substation;
the transmission transformation voltage model generation module is used for acquiring the voltage of a 10kV bus voltage sampling point of the transformer substation through the dispatching automation system, acquiring the voltage of each typical public distribution transformer voltage sampling point through the power utilization information acquisition system, and generating a transmission transformation voltage model according to a corresponding distribution transformer gear and the distance between the 10kV bus of the transformer substation and the voltage sampling point;
the 10kV bus voltage adjusting module is used for adjusting the actual voltage value of the 10kV bus of the corresponding substation through the dispatching automation system according to the standard range of the public distribution transformer outlet voltage and the transmission transformation voltage model;
and the transmission conversion voltage model correction module is used for correcting the transmission conversion voltage model until the outlet voltage of the public distribution transformer meets the standard voltage value.
, the voltage sampling point setting module includes:
the voltage sampling point -th setting unit is used for setting a voltage sampling point on a 10kV bus of the transformer substation;
the second voltage sampling point setting unit is used for respectively setting voltage sampling points at a plurality of typical public distribution transformer outlets of a corresponding 10kV public line of the transformer substation;
the transmission line length obtaining unit is used for obtaining the length of a transmission line between a 10kV bus of the transformer substation and a typical public distribution transformer;
and the public distribution transformer information acquisition unit is used for acquiring the basic information and the running information of the typical public distribution transformer gear.
Further , the transmission transformed voltage model generation module includes:
the dispatching automation system connecting unit is used for connecting the 10kV bus voltage sampling point of the transformer substation with the dispatching automation system;
the power consumption information acquisition system connecting unit is used for connecting each typical public distribution transformer outlet voltage sampling point with the power consumption information acquisition system;
the 10kV bus voltage acquisition unit is used for acquiring the 10kV bus voltage of the transformer substation through the dispatching automation system;
each typical public distribution transformer outlet voltage acquisition unit is used for acquiring voltage of each typical public distribution transformer outlet voltage sampling point through the power utilization information acquisition system;
and the transmission transformation voltage model generation unit is used for generating a transmission transformation voltage model according to the 10kV bus voltage of the transformer substation, the voltage of each typical public distribution transformer outlet voltage sampling point and the length of the transmission line.
, the 10kV bus voltage adjusting module comprises:
the typical public distribution transformer outlet voltage allowed maximum value acquisition unit is used for acquiring the maximum value allowed by the typical public distribution transformer outlet voltage;
the maximum initial voltage value calculating unit is used for calculating the maximum initial voltage value of the 10kV bus according to the transmission transformation voltage model;
and the transformer substation main transformer gear or switched capacitor bank adjusting unit is used for adjusting the transformer substation main transformer gear or switched capacitor bank through the automatic control module of the dispatching automation system, so that the difference between the initial output value of the 10kV bus voltage and the maximum initial voltage value is a set difference value.
Further , the transmit transformed voltage model modification module includes:
the typical public distribution transformer outlet voltage judging unit is used for obtaining and judging whether the typical public distribution transformer outlet voltage is larger than the maximum value allowed by the typical public distribution transformer outlet voltage after the 10kV bus voltage output of the transformer substation is adjusted;
the transmission voltage model correction unit is used for correcting the transmission conversion voltage model when the typical public distribution transformer outlet voltage is larger than the maximum value allowed by the typical public distribution transformer outlet voltage;
and the adjustment and storage unit is used for judging that the typical public distribution transformer outlet voltage meets the standard when the typical public distribution transformer outlet voltage is less than or equal to the maximum value allowed by the typical public distribution transformer outlet voltage, and storing the transmission transformation voltage model and the adjustment of the dispatching automation system on the 10kV bus voltage of the transformer substation.
The beneficial effect of the invention is that,
according to the method and the system for allocating the 10kV bus voltage and the public distribution transformer outlet voltage, provided by the invention, the sampling point is arranged on the 10kV bus of the transformer substation, the transmission transformation voltage model is generated, the actual value of the 10kV bus voltage of the transformer substation is adjusted according to the standard range of the outlet voltage of the public distribution transformer, and finally the condition that the public distribution transformer outlet voltage is not continuously overvoltage is ensured.
In addition, the invention has reliable design principle and simple structure, fully utilizes the prior information system and has very wide application prospect of .
Therefore, compared with the prior art, the invention has prominent substantive features and remarkable progress, and the beneficial effects of the implementation are also obvious.
Drawings
In order to more clearly illustrate the embodiments or technical solutions in the prior art of the present invention, the drawings used in the description of the embodiments or prior art will be briefly described below, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without creative efforts.
FIG. 1 is a schematic flow chart of the method of the present invention;
FIG. 2 is a second schematic flow chart of the method of the present invention;
FIG. 3 is a schematic diagram of the system of the present invention;
in the figure, a 1-voltage sampling point setting module, a 1.1-voltage sampling point setting unit, a 1.2-voltage sampling point second setting unit, a 1.3-transmission line length obtaining unit, a 1.4-public distribution transformer information obtaining unit, a 2-transmission transformation voltage model generating module, a 2.1-dispatching automation system connecting unit, a 2.2-electricity utilization information acquisition system connecting unit, a 2.3-10kV bus voltage acquisition unit, a 2.4-typical public distribution transformer outlet voltage acquisition unit, a 2.5-transmission transformation voltage model generating unit, a 3-10kV bus voltage adjusting module, a 3.1-typical public distribution transformer outlet voltage allowable maximum value obtaining unit, a 3.2-maximum initial voltage calculating unit, a 3.3-transformer station main transformer gear or switching capacitor group adjusting unit, a 4-transmission transformation voltage model correcting module, a 4.1-typical public distribution transformer outlet voltage judging unit, a 4.2-transmission voltage model correcting unit and a 4.3-adjusting unit.
Detailed Description
In order to make those skilled in the art better understand the technical solution of the present invention, the technical solution in the embodiment of the present invention will be clearly and completely described below with reference to the drawings in the embodiment of the present invention, and it is obvious that the described embodiment is only a partial embodiment of of the present invention, rather than a whole embodiment.
Example 1:
as shown in fig. 1, the invention provides a method for allocating types of 10kV bus voltages and public distribution transformer outlet voltages, comprising the following steps:
s1, respectively setting voltage sampling points at a plurality of typical public distribution transformer outlets of a 10kV public line of a transformer substation;
s2, acquiring voltage of a 10kV bus voltage sampling point of the transformer substation through a dispatching automation system, acquiring voltage of each typical public distribution transformer voltage sampling point through an electricity utilization information acquisition system, and generating a transmission transformation voltage model according to a corresponding distribution transformer gear and the distance between the 10kV bus of the transformer substation and the voltage sampling point;
s3, adjusting the actual voltage value of the 10kV bus of the corresponding substation through a dispatching automation system according to the standard range of the public distribution transformer outlet voltage and a transmission transformation voltage model;
and S4, correcting the transmission transformation voltage model until the outlet voltage of the public distribution transformer meets the standard voltage value.
Example 2:
as shown in fig. 2, the invention provides a method for allocating types of 10kV bus voltages and public distribution transformer outlet voltages, comprising the following steps:
s1, respectively setting voltage sampling points at a plurality of typical public distribution transformer outlets of a 10kV public line of a transformer substation; the method comprises the following specific steps:
s11, setting voltage sampling points on a 10kV bus of the transformer substation;
s12, respectively setting voltage sampling points at a plurality of typical public distribution transformer outlets of a corresponding 10kV public line of a transformer substation;
s13, acquiring the length of a transmission line between a 10kV bus of the transformer substation and a typical public distribution transformer;
s14, acquiring basic information and running information of a typical public distribution transformer gear;
s2, acquiring voltage of a 10kV bus voltage sampling point of the transformer substation through a dispatching automation system, acquiring voltage of each typical public distribution transformer voltage sampling point through an electricity utilization information acquisition system, and generating a transmission transformation voltage model according to a corresponding distribution transformer gear and the distance between the 10kV bus of the transformer substation and the voltage sampling point; the method comprises the following specific steps:
s21, connecting a 10kV bus voltage sampling point of the transformer substation with a dispatching automation system;
s22, connecting each typical public distribution transformer outlet voltage sampling point with an electricity utilization information acquisition system;
s23, acquiring the voltage of a 10kV bus of the transformer substation through a dispatching automation system;
s24, collecting voltage of each typical public distribution transformer outlet voltage sampling point through a power utilization information collection system;
s25, generating a transmission transformation voltage model according to the 10kV bus voltage of the transformer substation, the voltage of each typical common distribution transformer outlet voltage sampling point and the length of a transmission line;
s3, adjusting the actual voltage value of the 10kV bus of the corresponding substation through a dispatching automation system according to the standard range of the public distribution transformer outlet voltage and a transmission transformation voltage model; the method comprises the following specific steps:
s31, obtaining a maximum allowed voltage value of a typical common distribution transformer outlet;
s32, calculating the maximum initial voltage value of the 10kV bus according to the transmission transformation voltage model;
s33, adjusting the gear of a main transformer of the transformer substation or switching a capacitor bank through a voltage automatic control module of the dispatching automation system to enable the difference between the initial output value of the voltage of the 10kV bus of the transformer substation and the maximum initial voltage value to be a set difference value; generally, the common distribution transformer outlet voltage is lower than 198V and is overvoltage greater than 235.4V;
s4, correcting the transmission transformation voltage model until the outlet voltage of the public distribution transformer meets the standard voltage value; the method comprises the following specific steps:
the method comprises the following specific steps:
s41, after the voltage output of the 10kV bus of the transformer substation is adjusted, whether the typical public distribution transformer outlet voltage is larger than the allowable maximum value of the typical public distribution transformer outlet voltage is obtained and judged;
s42, if yes, correcting the transmission conversion voltage model, and returning to the step S32;
if not, judging that the typical common distribution transformer outlet voltage meets the standard, and storing the transmission transformation voltage model and the adjustment of the dispatching automation system on the 10kV bus voltage of the transformer substation; and continuously correcting the transmission transformation voltage model until the continuous overvoltage phenomenon does not occur at the voltage of the public distribution transformation outlet.
Example 3:
as shown in fig. 3, the present invention provides kinds of system for adjusting 10kV bus voltage and public distribution transformer outlet voltage, including:
the voltage sampling point setting module 1 is used for respectively setting voltage sampling points at a plurality of typical public distribution transformer outlets of a 10kV public line of a transformer substation; the voltage sampling point setting module 1 includes:
the th voltage sampling point setting unit 1.1 is used for setting voltage sampling points on a 10kV bus of the transformer substation;
the second voltage sampling point setting unit 1.2 is used for respectively setting voltage sampling points at a plurality of typical public distribution transformer outlets of a corresponding 10kV public line of the transformer substation;
the transmission line length obtaining unit 1.3 is used for obtaining the length of a transmission line between a 10kV bus of a transformer substation and a typical public distribution transformer;
the public distribution transformer information acquisition unit 1.4 is used for acquiring the basic information and the running information of a typical public distribution transformer gear;
the transmission transformation voltage model generation module 2 is used for acquiring the voltage of a 10kV bus voltage sampling point of the transformer substation through a dispatching automation system, acquiring the voltage of each typical public distribution transformer voltage sampling point through an electricity utilization information acquisition system, and generating a transmission transformation voltage model according to a corresponding distribution transformer gear and the distance between the 10kV bus of the transformer substation and the voltage sampling point; the transmission transformation voltage model generation module 2 includes:
the dispatching automation system connecting unit 2.1 is used for connecting the 10kV bus voltage sampling point of the transformer substation with the dispatching automation system;
the power consumption information acquisition system connecting unit 2.2 is used for connecting each typical public distribution transformer outlet voltage sampling point with the power consumption information acquisition system;
the 10kV bus voltage acquisition unit 2.3 is used for acquiring the 10kV bus voltage of the transformer substation through the dispatching automation system;
each typical public distribution transformer outlet voltage acquisition unit 2.4 is used for acquiring voltage of each typical public distribution transformer outlet voltage sampling point through the power utilization information acquisition system;
the transmission transformation voltage model generation unit 2.5 is used for generating a transmission transformation voltage model according to the 10kV bus voltage of the transformer substation, the voltage of each typical common distribution transformer outlet voltage sampling point and the length of the transmission line;
the 10kV bus voltage adjusting module 3 is used for adjusting the actual voltage value of the 10kV bus of the corresponding substation through the dispatching automation system according to the standard range of the public distribution transformer outlet voltage and the transmission transformation voltage model; the 10kV bus voltage adjustment module 3 includes:
a typical common distribution transformer outlet voltage allowable maximum value acquisition unit 3.1 for acquiring a maximum value allowed by the typical common distribution transformer outlet voltage;
the maximum initial voltage value calculating unit 3.2 is used for calculating the maximum initial voltage value of the 10kV bus according to the transmission transformation voltage model;
a transformer substation main transformer gear or switched capacitor bank adjusting unit 3.3, which is used for adjusting the transformer substation main transformer gear or switched capacitor bank through an automatic control module of a dispatching automation system, so that the difference between the initial output value of the 10kV bus voltage and the maximum initial voltage value is a set difference value;
the transmission transformation voltage model correction module 4 is used for correcting the transmission transformation voltage model until the outlet voltage of the public distribution transformer meets the standard voltage value; the transmission conversion voltage model modification module 4 includes:
the typical public distribution transformer outlet voltage judging unit 4.1 is used for obtaining and judging whether the typical public distribution transformer outlet voltage is larger than the maximum value allowed by the typical public distribution transformer outlet voltage after regulating the voltage output of a 10kV bus of the transformer substation;
a transmission voltage model correction unit 4.2 for correcting the transmission transformation voltage model when the typical common distribution transformer outlet voltage is greater than the maximum value allowed by the typical common distribution transformer outlet voltage;
and the adjustment storage unit 4.3 is used for judging that the typical public distribution transformer outlet voltage meets the standard when the typical public distribution transformer outlet voltage is less than or equal to the maximum value allowed by the typical public distribution transformer outlet voltage, and storing the adjustment of the transmission transformation voltage model and the dispatching automation system to the 10kV bus voltage of the transformer substation.
Although the present invention has been described in detail by referring to the drawings in connection with the preferred embodiments, the present invention is not limited thereto. Various equivalent modifications or substitutions can be made on the embodiments of the present invention by those skilled in the art without departing from the spirit and scope of the present invention, and these modifications or substitutions are within the scope of the present invention/any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.
Claims (10)
1, kinds of 10kV bus voltage and public distribution transformer outlet voltage allocation method, characterized by comprising the following steps:
s1, respectively setting voltage sampling points at a plurality of typical public distribution transformer outlets of a 10kV public line of a transformer substation;
s2, acquiring voltage of a 10kV bus voltage sampling point of the transformer substation through a dispatching automation system, acquiring voltage of each typical public distribution transformer voltage sampling point through an electricity utilization information acquisition system, and generating a transmission transformation voltage model according to a corresponding distribution transformer gear and the distance between the 10kV bus of the transformer substation and the voltage sampling point;
s3, adjusting the actual voltage value of the 10kV bus of the corresponding substation through a dispatching automation system according to the standard range of the public distribution transformer outlet voltage and a transmission transformation voltage model;
and S4, correcting the transmission transformation voltage model until the outlet voltage of the public distribution transformer meets the standard voltage value.
2. The method for matching a 10kV bus voltage with a public distribution transformer outlet voltage according to claim 1, wherein the step S1 specifically comprises the following steps:
s11, setting voltage sampling points on a 10kV bus of the transformer substation;
s12, respectively setting voltage sampling points at a plurality of typical public distribution transformer outlets of a corresponding 10kV public line of a transformer substation;
s13, acquiring the length of a transmission line between a 10kV bus of the transformer substation and a typical public distribution transformer;
s14, obtaining basic information and operation information of a typical public distribution transformer gear.
3. The method for matching a 10kV bus voltage with a public distribution transformer outlet voltage according to claim 2, wherein the step S2 comprises the following steps:
s21, connecting a 10kV bus voltage sampling point of the transformer substation with a dispatching automation system;
s22, connecting each typical public distribution transformer outlet voltage sampling point with an electricity utilization information acquisition system;
s23, acquiring the voltage of a 10kV bus of the transformer substation through a dispatching automation system;
s24, collecting voltage of each typical public distribution transformer outlet voltage sampling point through a power utilization information collection system;
and S25, generating a transmission transformation voltage model according to the 10kV bus voltage of the transformer substation, the voltage of each typical common distribution transformer outlet voltage sampling point and the length of the transmission line.
4. The method for matching a 10kV bus voltage with a public distribution transformer outlet voltage according to claim 3, wherein the step S3 comprises the following steps:
s31, obtaining a maximum allowed voltage value of a typical common distribution transformer outlet;
s32, calculating the maximum initial voltage value of the 10kV bus according to the transmission transformation voltage model;
and S33, adjusting the gear of a main transformer of the transformer substation or switching a capacitor bank through a voltage automatic control module of the dispatching automation system to enable the difference between the initial output value of the voltage of the 10kV bus of the transformer substation and the maximum initial voltage value to be a set difference value.
5. The method for matching a 10kV bus voltage with a public distribution transformer outlet voltage according to claim 4, wherein the step S4 comprises the following steps:
s41, after the voltage output of the 10kV bus of the transformer substation is adjusted, whether the typical public distribution transformer outlet voltage is larger than the allowable maximum value of the typical public distribution transformer outlet voltage is obtained and judged;
s42, if yes, correcting the transmission conversion voltage model, and returning to the step S32;
and if not, judging that the typical common distribution transformer outlet voltage meets the standard, and storing the transmission transformation voltage model and the adjustment of the dispatching automation system on the 10kV bus voltage of the transformer substation.
6, kind 10kV generating line voltage and public distribution transform export voltage allotment system, its characterized in that includes:
the voltage sampling point setting module (1) is used for respectively setting voltage sampling points at a plurality of typical public distribution transformer outlets of a 10kV public line of a transformer substation;
the transmission transformation voltage model generation module (2) is used for acquiring the voltage of a 10kV bus voltage sampling point of the transformer substation through a dispatching automation system, acquiring the voltage of each typical public distribution transformer voltage sampling point through an electricity utilization information acquisition system, and generating a transmission transformation voltage model according to a corresponding distribution transformer gear and the distance between the 10kV bus of the transformer substation and the voltage sampling point;
the 10kV bus voltage adjusting module (3) is used for adjusting the actual voltage value of the 10kV bus of the corresponding substation through the dispatching automation system according to the standard range of the public distribution transformer outlet voltage and the transmission transformation voltage model;
and the transmission conversion voltage model correction module (4) is used for correcting the transmission conversion voltage model until the outlet voltage of the public distribution transformer meets the standard voltage value.
7. The 10kV bus voltage and utility distribution transformer outlet voltage regulation system according to claim 6, wherein the voltage sampling point setting module (1) comprises:
the voltage sampling point th setting unit (1.1) is used for setting a voltage sampling point on a 10kV bus of the transformer substation;
the second voltage sampling point setting unit (1.2) is used for respectively setting voltage sampling points at a plurality of typical public distribution transformer outlets of a corresponding 10kV public line of the transformer substation;
the transmission line length obtaining unit (1.3) is used for obtaining the length of a transmission line between a 10kV bus of a transformer substation and a typical public distribution transformer;
and a public distribution information acquisition unit (1.4) for acquiring the basic information and the operation information of the typical public distribution gear.
8. The 10kV bus voltage and utility distribution transformer outlet voltage regulation system of claim 6, wherein the transmission transformation voltage model generation module (2) comprises:
the dispatching automation system connecting unit (2.1) is used for connecting the 10kV bus voltage sampling point of the transformer substation with the dispatching automation system;
the power consumption information acquisition system connecting unit (2.2) is used for connecting each typical public distribution transformer outlet voltage sampling point with the power consumption information acquisition system;
the 10kV bus voltage acquisition unit (2.3) is used for acquiring the 10kV bus voltage of the transformer substation through the dispatching automation system;
each typical public distribution transformer outlet voltage acquisition unit (2.4) is used for acquiring voltage of each typical public distribution transformer outlet voltage sampling point through the power utilization information acquisition system;
and the transmission transformation voltage model generation unit (2.5) is used for generating a transmission transformation voltage model according to the 10kV bus voltage of the transformer substation, the voltage of each typical public distribution transformer outlet voltage sampling point and the length of the transmission line.
9. The 10kV bus voltage and utility distribution transformer outlet voltage regulation system of claim 6, wherein the 10kV bus voltage regulation module (3) comprises:
a typical common distribution transformer outlet voltage allowable maximum value acquisition unit (3.1) for acquiring a maximum value allowed by the typical common distribution transformer outlet voltage;
the maximum initial voltage value calculating unit (3.2) is used for calculating the maximum initial voltage value of the 10kV bus according to the transmission transformation voltage model;
and the transformer substation main transformer gear or switched capacitor bank adjusting unit (3.3) is used for adjusting the transformer substation main transformer gear or switched capacitor bank through the automatic control module of the dispatching automation system, so that the difference between the initial output value of the 10kV bus voltage and the maximum initial voltage value is a set difference value.
10. The 10kV bus voltage and utility distribution transformer outlet voltage regulation system of claim 6, wherein the transmission transformation voltage model modification module (4) comprises:
the typical public distribution transformer outlet voltage judging unit (4.1) is used for obtaining and judging whether the typical public distribution transformer outlet voltage is larger than the maximum value allowed by the typical public distribution transformer outlet voltage after regulating the voltage output of a 10kV bus of the transformer substation;
a transmission voltage model correction unit (4.2) for correcting the transmission transformation voltage model when the typical common distribution transformer outlet voltage is greater than the maximum value allowed by the typical common distribution transformer outlet voltage;
and the adjustment and storage unit (4.3) is used for judging that the typical public distribution transformer outlet voltage meets the standard when the typical public distribution transformer outlet voltage is less than or equal to the maximum value allowed by the typical public distribution transformer outlet voltage, and storing the adjustment of the transmission transformation voltage model and the dispatching automation system to the 10kV bus voltage of the transformer substation.
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| CN111398859A (en) * | 2020-03-17 | 2020-07-10 | 国网江西省电力有限公司电力科学研究院 | User low-voltage cause big data analysis method and system |
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