CN109165441A - Simulation Calculation Method of Induced Voltage and Current in Parallel AC Transmission Line Based on ATP-EMTP - Google Patents

Simulation Calculation Method of Induced Voltage and Current in Parallel AC Transmission Line Based on ATP-EMTP Download PDF

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Publication number
CN109165441A
CN109165441A CN201810959072.7A CN201810959072A CN109165441A CN 109165441 A CN109165441 A CN 109165441A CN 201810959072 A CN201810959072 A CN 201810959072A CN 109165441 A CN109165441 A CN 109165441A
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transmission line
current
atp
emtp
parameters
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Inventor
刘勇
刘承志
任红昕
郭鑫
孙明刚
陈曦鸣
马雷
王军燕
王鹏
张金锋
刘汝伟
李亮
席照才
李迎春
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Baoding Huadian Keyuan Electric Co ltd
State Grid Anhui Electric Power Co Ltd
Construction Branch of State Grid Anhui Electric Power Co Ltd
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Baoding Huadian Keyuan Electric Co ltd
State Grid Anhui Electric Power Co Ltd
Construction Branch of State Grid Anhui Electric Power Co Ltd
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Priority to CN201810959072.7A priority Critical patent/CN109165441A/en
Publication of CN109165441A publication Critical patent/CN109165441A/en
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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F30/00—Computer-aided design [CAD]
    • G06F30/20—Design optimisation, verification or simulation
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof

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  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
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  • Evolutionary Computation (AREA)
  • Geometry (AREA)
  • General Engineering & Computer Science (AREA)
  • Supply And Distribution Of Alternating Current (AREA)

Abstract

The invention provides a simulation calculation method of induced voltage and current of a parallel alternating current transmission line based on ATP-EMTP, which comprises the steps of establishing a model through ATP-EMTP simulation software, setting transmission line related parameters in the ATP-EMTP software according to acquired transmission line parameters, ground wire parameters, transmission tower parameters and transmission line soil resistivity parameters, and establishing a line model; and establishing a voltage source and a current source at two ends of the live operation transmission line according to the acquired live operation transmission line operation parameters to calculate the static induction voltage, the static induction current, the electromagnetic induction voltage and the electromagnetic induction current of the construction line. The method can accurately evaluate the magnitude of the induced voltage and the induced current on the parallel alternating current transmission line construction line, make safety measures in time and improve the safety operation capability of transmission line workers.

Description

Based on the emulation of the parallel transmission line of alternation current induced voltage of ATP-EMTP and electric current Calculation method
Technical field
The present invention relates to transmission line of electricity simulation calculation field, in particular to a kind of parallel ac transmission based on ATP-EMTP The emulated computation method of line influence voltage and current.
Background technique
As high pressure, UHV transmission line engineering construction are more and more, occupy ground saving line corridor, reducing city In the case where, the case where inevitably transmission line of electricity is parallel and scissors crossing.The a plurality of general transmission of electricity of route is walked Corridor is commonplace, and due to electrostatic coupling and electromagnetic coupling complicated between transmission line of electricity, on interruption maintenance maintenance line Quite high induced voltage and induced current can be generated, the safety of the person and equipment is seriously jeopardized.
According to studies have shown that closing on ultrahigh voltage alternating current transmission lines induced voltage can reach tens of kilovolts, induced current can Reach tens of amperes.And parallel two transmission line of alternation currents induced electricity Study on Problems is few, therefore, how to obtain parallel two friendships Induced voltage and faradic size are problems in the urgent need to address at present when flowing transmission line of electricity.
The purpose of the present invention is overcome the deficiencies in the prior art, proposes a kind of use ATP-EMTP software emulation two Induced voltage, faradic calculation method when parallel alternating current circuit, it is horizontal convenient for assessment induced voltage and induced current, in time Safety measure is carried out, Research Work of Power Transmission Line personnel safety work capacity is improved.
Summary of the invention
The present invention proposes a kind of simulation calculation of parallel transmission line of alternation current induced voltage and electric current based on ATP-EMTP Method, comprising the following steps:
Step 1: obtaining electrical basic parameter
Including transmission line parameter, ground wire parameter, transmission tower parameter, soil resistivity parameter along transmission line of electricity, band Electricity operation route operating parameter；
Step 2: building ATP-EMTP simulation model
According to soil resistivity along acquired transmission line parameter, ground wire parameter, transmission tower parameter, transmission line of electricity Parameter is arranged the transmission line of electricity relevant parameter in ATP-EMTP software, establishes circuit model；According to the charging operation of acquisition Route operating parameter establishes voltage source and current source at charging operation transmission line of electricity both ends；
Step 3: induced voltage and induced current calculate
Electrostatic induction voltage, electrostatic sense including calculating parallel transmission line of alternation current according to the simulation model of the step 2 Answer electric current, electromagnetic induction voltage and em induced current.
Further, transmission line parameter includes between transmission line of electricity model, internal diameter, outer diameter, D.C. resistance, division number, division Away from, arc sag, phase sequence.
Further, ground wire parameter includes ground wire model, internal diameter, outer diameter, D.C. resistance, arc sag.
Further, transmission tower parameter includes shaft tower model, exhales height, span, conducting wire in shaft tower hitch point.
Further, charging operation route operating parameter includes working line voltage class, transmission power.
Further, the lumped parameter model in ATP-EMTP may be selected to short distance transmission line of electricity, to long-distance transmission line Road need to select the distributed parameter model in ATP-EMTP.
Further, voltage source is connected to working line head end, and current source is connected to working line end.
Further, when computing electric power line electrostatic induction voltage, the transmission line of electricity of induction needs both ends to open a way；Calculate power transmission line When the electromagnetic induction voltage of road, the transmission line of electricity of induction needs one end to be grounded, one end open circuit；When calculating static induced current, induction Transmission line of electricity needs one end to be grounded, one end open circuit；When calculating em induced current, the transmission line of electricity both ends of induction are both needed to be grounded.
Further, the induced voltage of induction line and electric current need split-phase to detect.
Detailed description of the invention
Fig. 1 is transmission line of electricity Model model setting figure in the method for the present invention；
Fig. 2 is the positional diagram of transmission line of electricity.
Specific embodiment
With reference to the accompanying drawings and examples, specific embodiments of the present invention will be described in further detail.
Present invention combination CDEGS software to carry out simulation calculation to the induced current and induced voltage of transmission line of electricity.
Exchange the emulated computation method of transmission lines in parallel inductive voltage and current, comprising the following steps:
Step 1 obtains electrical basic parameter
1) transmission line parameter involved in obtaining, including transmission line of electricity model, internal diameter, outer diameter, division number, direct current Resistance, division spacing, arc sag, phase sequence etc.；
2) ground wire parameter, including ground wire model, internal diameter, outer diameter, arc sag, D.C. resistance involved in obtaining etc.；
3) transmission tower parameter involved in obtaining, including shaft tower model, exhale height, span, conducting wire in shaft tower hitch point etc.；
4) soil resistivity parameter involved in obtaining；
5) working line operating parameter, including working line voltage class, transmission power etc. are obtained.
Step 2 builds ATP-EMTP simulation model
1) model of power transmission system designs.According to soil resistivity, electric transmission line erection mode, power transmission line along transmission line of electricity Road phase sequence, working line and induction line and the factors such as line space determine transmission line of electricity sectional pattern.
2) model of power transmission system is built.Lumped parameter model in ATP-EMTP may be selected to short distance transmission line of electricity, it is right Long distance transmission line need to select the distributed parameter model in ATP-EMTP, by the designed each section of transmission line of electricity of step 1), It is simulated in ATP-EMTP with the model of power transmission system of selection, and is connected each section of transmission line of electricity according to transmission line of electricity phase sequence figure Come.
3) transmission line parameter is arranged.The parameter that need to be arranged has in the LCC (transmission line of electricity module) in ATP-EMTP Model, data module.The parameter and step 2 data analytical calculation that the setting of this partial parameters is collected according to step 1 obtain. Transmission line of electricity type and corresponding feature are set specially in Model module, as shown in Figure 1, setting model of power transmission system, setting Soil resistivity, transmission line of electricity frequency of delivery, transmission line length；Data module setting transmission line of electricity phase number, internal diameter, outer diameter, D.C. resistance, horizontal distance, conductor height, span centre drift height divide spacing, ground wire shielding angle, division number.
Choosing 1000kV transmission line of electricity is 0 point of reference levels distance, and 500kV transmission line of electricity is on the left of 1000kV, then horizontal Distance Horiz1=Horiz0-d1, induction line is on the right side of 1000kV, then horizontal distance Horiz2=Horiz0-d2.Tower height is It is segmented average tower height in LCC moduleConductor height is average in segmentation LCC module Conductor height VmidAverage arc sag is subtracted for average conductor height.
4) source is applied to working line.It is voltage source and current source that this, which applies source,.The data source of voltage source and current source According to alive circuit working voltage and transmission power, voltage source is line voltage virtual value, and current source is phase current virtual value, such as 1000kV transmission line of electricity, transmission power 5600MW, when power factor 0.95, voltage source is set as when ATP-EMTP is modeled 1000000V, according to formulaThe current source of calculating is set as 3403.3A.Three phase line It then needs to define phase sequence angle, driving source is selected according to actual track phase sequence when establishing conductor.Specially select ATP-EMTP In Sources module in AC source 1&3 module, double-click AC source 1&3 module, carry out Component:AC Source setting, left end applies source and then selects Type of source for voltage source by the way of voltage source, and voltage is arranged The amplitude (peak value or virtual value) in source, frequency, phase angle；Frequency is 50HZ, and phase angle is constant；Then one end Jie of voltage source is run Route head end.The other end applies source and then selects Type of source for current source by the way of current source, and electric current is arranged The amplitude (peak value or virtual value) in source, frequency, phase angle；Frequency is 50HZ, and phase angle is constant；By one end Jie working line of current source End.And at the beginning of voltage source or current source are set≤0, dwell time > simulation time T max.
5) simulation time step-length is arranged.Open the ATP-Settings under the ATP module in ATP-EMTP, setting emulation step Long delta T < 1 × 10-3, simulation time T max > delta T.
Step 3, induced voltage and induced current calculate
Fig. 2 shows the positional diagrams of transmission line of electricity to need when calculating inductive voltage and current:
(1) by the equal short circuit grounding of construction line first and end, the electromagnetic induction electricity under different working line trends can be obtained Stream.
(2) every route first and end is opened a way, the electrostatic induction voltage under different working line trends can be obtained.
(2) every route short at one end is grounded, the electromagnetism sense under different working line trends can be obtained in other end open circuit Answer voltage, static induced current.
Finally, carrying out ATP-EMTP model debugging, specific simulation calculation can be carried out later.
1) ATP program is run, checks whether each section of transposition and phase sequence are accurate, if mistake, checks LCC (transmission line of electricity paragraph by paragraph Module) phase sequence, and correct, until phase sequence is all consistent with design phase sequence.
2) calculation is arranged.When computing electric power line electrostatic induction voltage, the transmission line of electricity of induction needs both ends to open a way；Meter When calculating transmission line of electricity electromagnetic induction voltage, the transmission line of electricity of induction needs one end to be grounded, one end open circuit；Calculate static induced current When, the transmission line of electricity of induction needs one end to be grounded, one end open circuit.When calculating em induced current, the transmission line of electricity both ends of induction are equal It needs to be grounded.
3) since the every phase conductor height of induction line, every phase and working line spacing are different, the induced electricity of induction line Pressure and electric current need split-phase to detect.
4) probe current subject string is connected in each single-phase power transmission line, by detecting voltage source and is connected in the every of induction A single-phase power transmission line both ends double-click the content that probe current source setting probe current source is shown, select Steady-state's Curr/Power selects the Curr.Ampl in Onscreen, then the probe current source shows the electricity passed through after debugging calculating Flow amplitude.The content that detecting voltage source setting detecting voltage source is shown is double-clicked, the Voltage of Steady-state is selected, selects U in Onscreen then debugs voltage magnitude and angle that the detecting voltage source after calculating shows simultaneously wiring waypoint.
Induced voltage, electric current under different working line trends can be precisely calculated by above step.
It is emphasized that embodiment of the present invention be it is illustrative, without being restrictive, therefore packet of the present invention Include and be not limited to embodiment described in specific embodiment, it is all by those skilled in the art according to the technique and scheme of the present invention The other embodiments obtained, also belong to the scope of protection of the invention.

Claims (9)

1.一种基于ATP-EMTP的平行交流输电线路感应电压和电流的仿真计算方法，包括以下步骤：1. A simulation calculation method based on ATP-EMTP parallel AC transmission line induced voltage and current, comprising the following steps: 步骤1：获取电气基本参数Step 1: Get the basic electrical parameters 包括输电线路参数，地线参数，输电杆塔参数，输电线路沿线土壤电阻率参数，带电运行线路运行参数；Including transmission line parameters, ground wire parameters, transmission tower parameters, soil resistivity parameters along the transmission line, and live line operating parameters; 步骤2：搭建ATP-EMTP仿真模型Step 2: Build the ATP-EMTP simulation model 根据所获取的输电线路参数、地线参数、输电杆塔参数、输电线路沿线土壤电阻率参数，设置ATP-EMTP软件中的输电线路相关参数，建立线路模型；根据获取的所述带电运行线路运行参数，在带电运行输电线路两端建立电压源和电流源；According to the obtained transmission line parameters, ground wire parameters, transmission tower parameters, and soil resistivity parameters along the transmission line, set the relevant parameters of the transmission line in the ATP-EMTP software, and establish a line model; , establish a voltage source and a current source at both ends of the live transmission line; 步骤3：感应电压和感应电流计算Step 3: Induced Voltage and Induced Current Calculations 包括根据所述步骤2的仿真模型计算平行交流输电线路的静电感应电压、静电感应电流、电磁感应电压和电磁感应电流。It includes calculating the electrostatically induced voltage, electrostatically induced current, electromagnetically induced voltage and electromagnetically induced current of the parallel AC transmission line according to the simulation model of step 2. 2.根据权利要求1所述的一种基于ATP-EMTP的平行交流输电线路感应电压和电流的仿真计算方法，其特征在于：所述输电线路参数包括输电线路型号、内径、外径、直流电阻、分裂数、分裂间距、弧垂、相序。2. a kind of simulation calculation method based on ATP-EMTP parallel AC transmission line induced voltage and current according to claim 1, is characterized in that: described transmission line parameter comprises transmission line model, inner diameter, outer diameter, direct current resistance , split number, split spacing, sag, phase sequence. 3.根据权利要求1所述的一种基于ATP-EMTP的平行交流输电线路感应电压和电流的仿真计算方法，其特征在于：所述地线参数包括地线型号、内径、外径、直流电阻、弧垂。3. a kind of simulation calculation method based on ATP-EMTP parallel AC transmission line induced voltage and current according to claim 1, is characterized in that: described ground wire parameter comprises ground wire model, inner diameter, outer diameter, direct current resistance , sag. 4.根据权利要求1所述的一种基于ATP-EMTP的平行交流输电线路感应电压和电流的仿真计算方法，其特征在于：所述输电杆塔参数包括杆塔型号、呼高、档距、导线在杆塔悬挂点。4. a kind of simulation calculation method based on ATP-EMTP parallel AC transmission line induced voltage and current according to claim 1, it is characterized in that: described transmission tower parameter comprises tower model, call height, span, wire in Pole tower suspension point. 5.根据权利要求1所述的一种基于ATP-EMTP的平行交流输电线路感应电压和电流的仿真计算方法，其特征在于：所述带电运行线路运行参数包括运行线路电压等级、输送功率。5 . The ATP-EMTP-based simulation calculation method for induced voltage and current in parallel AC transmission lines according to claim 1 , wherein the live line operating parameters include operating line voltage levels and transmission power. 6 . 6.根据权利要求1所述的一种基于ATP-EMTP的平行交流输电线路感应电压和电流的仿真计算方法，其特征在于：对短距离输电线路可选择ATP-EMTP中的集中参数模型，对长距离输电线路需选择ATP-EMTP中的分布参数模型。6. a kind of simulation calculation method based on the parallel AC transmission line induced voltage and current of ATP-EMTP according to claim 1, is characterized in that: the centralized parameter model in ATP-EMTP can be selected to short-distance transmission line, to Long-distance transmission lines need to choose the distributed parameter model in ATP-EMTP. 7.根据权利要求1所述的一种基于ATP-EMTP的平行交流输电线路感应电压和电流的仿真计算方法，其特征在于：所述电压源接于运行线路首端，电流源接于运行线路末端。7. a kind of simulation calculation method based on ATP-EMTP parallel AC transmission line induced voltage and current according to claim 1, it is characterized in that: described voltage source is connected to the head end of the running line, and the current source is connected to the running line end. 8.根据权利要求1所述的一种基于ATP-EMTP的平行交流输电线路感应电压和电流的仿真计算方法，其特征在于：计算输电线路静电感应电压时，感应的输电线路需两端开路；计算输电线路电磁感应电压时，感应的输电线路需一端接地，一端开路；计算静电感应电流时，感应的输电线路需一端接地，一端开路；计算电磁感应电流时，感应的输电线路两端均需接地。8. a kind of simulation calculation method based on the parallel AC transmission line induced voltage and current of ATP-EMTP according to claim 1, it is characterized in that: when calculating the static induced voltage of the transmission line, the transmission line of induction needs both ends to be open circuit; When electromagnetically induced voltage of a transmission line, one end of the induced transmission line needs to be grounded and one end is open; when calculating electrostatic induced current, one end of the induced transmission line needs to be grounded and one end is open; when calculating electromagnetically induced current, both ends of the induced transmission line need to be grounded. 9.根据权利要求8所述的一种基于ATP-EMTP的平行交流输电线路感应电压和电流的仿真计算方法，其特征在于：感应线路的感应电压及电流需分相探测。9 . The simulation calculation method for the induced voltage and current of a parallel AC transmission line based on ATP-EMTP according to claim 8 , wherein the induced voltage and current of the inductive line need to be detected in phases. 10 .
CN201810959072.7A 2018-08-22 2018-08-22 Simulation Calculation Method of Induced Voltage and Current in Parallel AC Transmission Line Based on ATP-EMTP Pending CN109165441A (en)

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CN109932532A (en) * 2019-03-18 2019-06-25 国网内蒙古东部电力有限公司电力科学研究院 A kind of test platform and method for line induction
CN109946566A (en) * 2019-03-22 2019-06-28 广东辰誉电力科技有限公司 A kind of high-pressure parallel transmission line of electricity induced voltage and induced current analysis method
CN112711865A (en) * 2021-01-19 2021-04-27 国网河北省电力有限公司 Power transmission line inductive electric simulation refined modeling method
CN113688504A (en) * 2021-07-26 2021-11-23 南方电网科学研究院有限责任公司 Parameterized modeling method, system, medium and power terminal for line electromagnetic interference
CN114580157A (en) * 2022-02-22 2022-06-03 国核电力规划设计研究院有限公司 Method and System for Determining Power Loss of Ground Wire in AC Overhead Transmission Line

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CN109932532A (en) * 2019-03-18 2019-06-25 国网内蒙古东部电力有限公司电力科学研究院 A kind of test platform and method for line induction
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CN113688504A (en) * 2021-07-26 2021-11-23 南方电网科学研究院有限责任公司 Parameterized modeling method, system, medium and power terminal for line electromagnetic interference
CN113688504B (en) * 2021-07-26 2024-03-22 南方电网科学研究院有限责任公司 Parameterized modeling method, system, medium and power terminal for line electromagnetic interference
CN114580157A (en) * 2022-02-22 2022-06-03 国核电力规划设计研究院有限公司 Method and System for Determining Power Loss of Ground Wire in AC Overhead Transmission Line
CN114580157B (en) * 2022-02-22 2025-05-02 国核电力规划设计研究院有限公司 Method and system for determining ground wire power loss in AC overhead transmission line

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Application publication date: 20190108