CN104166768B - It is a kind of by transformer nameplate Parameter Switch be flow data parameter method - Google Patents
It is a kind of by transformer nameplate Parameter Switch be flow data parameter method Download PDFInfo
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Abstract
The present invention provides a kind of by method of the transformer nameplate Parameter Switch for flow data parameter, pass through Design of Transformer nameplate parameter list and transformer flow data parameter list, standardized administration transformer nameplate parameter, according to PSD PFNT and PSASP by transformer nameplate Parameter Switch be flow data parameter.Transformer nameplate Parameter Switch easily can be needed into data format into PSD PFNT and PSASP transformer models using this method, and transformer nameplate parameter and flow data parameter are all stored in database.Shown by practical application, this method substantially increases the accuracy rate and efficiency that simulation calculation staff prepares transformer flow data parameter.
Description
Technical field
The present invention relates to electric system simulation calculating field, and in particular to a kind of is trend by transformer nameplate Parameter Switch
The method of data parameters.
Background technology
China's power system has had been enter into the epoch of bulk power grid, super, extra-high voltage, big Energy Base and long distance power transmission, with
Large Copacity at a distance transferring electricity from the west to the east and extensive receiving-end system for principal character national alternating current-direct current interconnected power grid preliminary shape
Into.
With national alternating current-direct current, the development of super, extra-high voltage, the implementation of networking project, electric system simulation calculating data
Scale it is increasing, net save between on calculate data renewal and exchange also become more and more frequently and it is important, enter by hand
Row exchanges error-prone, expends a large amount of manpowers and time.Traffic control department utilizes planning and designing data or planning and designing department
Usually it is also required to complete by manual transition form using existing running mode data aspect, operating efficiency is not high, not yet realizes
It is automatic to organically combine.With the development and realization of electricity marketization, operation of power networks person, Power Generation and power network user are each other
Need to realize data sharing, use, the specification that explicit data is exchanged.
With the development of computer technology, grid equipment parameter database management platform is developed, to electric system simulation
Calculating carries out unification, specification, scientific management with device parameter, and it is steady to provide accurate trend for electric system simulation calculation procedure
Stationary interface data file.
Because power transformer device category is various, there are three-phase transformer, single-phase transformer, 2 winding transformers, 3 windings
Transformer, the short-circuit test of the nameplate data of transformer between no-load test, winding etc. is obtained.According further to simulation calculation program
The different transformer models of middle use, are computed correctly and fill in the parameter corresponding with transformer model by nameplate parameter, this
Process is to be easy to error.And power transformer is distributed more in power system, it is incorrect that its reactance value is filled out, and can influence nothing
The distribution of work(trend, in addition can make should be able to convergent trend do not restrain.The equivalent resistance as caused by copper loss is calculated not in transformer
Standard, can cause the loss of calculating transformer inaccurate.
The content of the invention
In order to overcome the above-mentioned deficiencies of the prior art, it is trend number by transformer nameplate Parameter Switch that the present invention, which is provided a kind of,
According to the method for parameter, pass through Design of Transformer nameplate parameter list and transformer flow data parameter list, the inscription of standardized administration transformer
Board parameter, according to PSD-PFNT and PSASP by transformer nameplate Parameter Switch be Load flow calculation data parameters.Use this method
Transformer nameplate Parameter Switch easily can be needed into data format into PSD-PFNT and PSAS transformer models, and transformation
Device nameplate parameter and Load flow calculation are all stored in database with parameter.Shown by practical application, this method substantially increases imitative
True evaluation work personnel prepare the accuracy rate and efficiency of transformer flow data parameter.
In order to realize foregoing invention purpose, the present invention is adopted the following technical scheme that：
The present invention provide it is a kind of by transformer nameplate Parameter Switch be flow data parameter method, methods described include with
Lower step：
Step 1：Define transformer nameplate parameter list；
Step 2：Define transformer flow data parameter list；
Step 3：It is PSD-PFNT and PSASP flow data parameters by transformer nameplate Parameter Switch.
In the step 1, the often inscription of row storage two-winding transformer or three-winding transformer in transformer nameplate parameter list
Board parameter, including transformer model TYPP, Transformer Winding number WIND, nameplate wiring WICB, rated capacity, rated voltage, change
Depressor short-circuit test data, No-load Test of Transformer data and the affiliated power plant and substation's information of transformer.
For two-winding transformer, rated capacity includes high-pressure side rated capacity Sh and low-pressure side rated capacity Sl, dimension
It is MVA；
For three-winding transformer, rated capacity includes high-pressure side rated capacity Sh, medium voltage side rated capacity Sm and low pressure
Side rated capacity Sl, dimension is MVA.
For two-winding transformer, rated voltage includes high-pressure side rated voltage Vh and low-pressure side rated voltage Vl, dimension
It is kV；
For three-winding transformer, rated voltage includes high-pressure side rated voltage Vh, medium voltage side rated voltage Vm and low pressure
Side rated voltage Vl, dimension is kV.
For two-winding transformer, transformer short-circuit test data includes height short circuit in winding and PKhl and height winding is lost
Short-circuit voltage percentage UKhl, dimension is kW；
For three-winding transformer, transformer short-circuit test data includes senior middle school short circuit in winding loss PKhm, height winding
Short circuit loss PKhl, in low short circuit in winding loss PKml, senior middle school short circuit in winding voltage percentage UKhm, height short circuit in winding voltage
Percentage UKhl low short circuit in winding voltage percentage UKml with, dimension is kW.
For two-winding transformer and three-winding transformer, No-load Test of Transformer data include open circuit loss DP0 and sky
Carry electric current percentage DI0.
The affiliated power plant and substation's information of transformer includes plant stand title STAN and its affiliated province name PRV, putting equipment in service time YER and set
It is standby to exit time YERT.
In the step 2, often row deposits the trend of two-winding transformer or three-winding transformer in flow data parameter list
Data parameters, including system reference capacity SB, reference voltage, transformer Equivalent Circuit Parameter and Load flow calculation topological relation etc.
Information.
For two-winding transformer, reference voltage includes high-pressure side reference voltage V Bh and low-pressure side reference voltage V Bl, single
Position is kV；
For three-winding transformer, reference voltage includes high-pressure side reference voltage V Bh, medium voltage side reference voltage V Bm and low
Side reference voltage VBl is pressed, unit is kV.
For two-winding transformer, transformer Equivalent Circuit Parameter includes high pressure side resistance Rh, high-pressure side reactance Xh, excitatory
Conductance G0, magnetizing susceptance B0 and high-pressure side no-load voltage ratio TKh, dimension is perunit value；
For three-winding transformer, transformer Equivalent Circuit Parameter includes high pressure side resistance Rh, medium voltage side resistance Rm, low pressure
Side resistance Rl, high-pressure side reactance Xh, medium voltage side reactance Xm, low-pressure side reactance Xl, excitatory conductance G0, magnetizing susceptance B0, high-pressure side
No-load voltage ratio TKh and medium voltage side no-load voltage ratio TKm, dimension is per unit value.
Load flow calculation includes high-voltage side bus title nameh, medium voltage side bus title namem, low-pressure side bus with information
Title namel, neutral point bus title namez, controlled nodename kname and controlled voltage vcon.
In the step 3, for two-winding transformer, PSD-PFNT Load flow calculation flow data Parameters include
The equivalent resistance Rh of PSD-PFNT transformer modelsPSD-PFNT, equivalent reactance XhPSD-PFNT, excitatory resistance G0PSD-PFNTWith excitatory electricity
Anti- B0PSD-PFNT；
PSASP Load flow calculations include the equivalent resistance Rh of PSASP transformer models with flow data parameterPSASP, equivalent electric
Anti- XhPSASP, excitatory resistance G0PSASPWith excitatory reactance B0PSASP.The equivalent resistance Rh of PSD-PFNT transformer modelsPSD-PFNT, etc.
Imitate reactance XhPSD-PFNT, excitatory resistance G0PSD-PFNTWith excitatory reactance B0PSD-PFNTIt is expressed as：
Wherein, PKhl is lost for height short circuit in winding, and UKhl is height short circuit in winding voltage percentage, and SB is system benchmark
Capacity, Sh is high-pressure side rated capacity, and DP0 is open circuit loss, and DI0 is no-load current percentage.
The equivalent resistance Rh of PSASP transformer modelsPSASP, equivalent reactance XhPSASP, excitatory resistance G0PSASPWith excitatory reactance
B0PSASPIt is expressed as：
Wherein, VBl is low-pressure side reference voltage, and Vl is low-pressure side rated voltage.
It is high that PSD-PFNT Load flow calculations flow data and PSASP Load flow calculations include transformer with flow data parameter
Press side, medium voltage side, low-pressure side equivalent resistance Rh, Rm and Rl, high voltage side of transformer, medium voltage side, low-pressure side equivalent reactance Xh, Xm and
Xl, excitatory resistance G0 and excitatory reactance B0.
(1) high voltage side of transformer equivalent resistance Rh, medium voltage side equivalent resistance Rm and low-pressure side equivalent resistance Rl are expressed as：
Wherein, SB is system reference capacity, and Sh is high-pressure side rated capacity；PH, PM and PL are respectively high pressure winding, middle pressure
Winding, low pressure winding short circuit loss, are expressed as：
Wherein, PKHM ' is senior middle school's short circuit in winding loss of conversion to high pressure content, and PKHL ' is that high pressure content is arrived in conversion
Height short circuit in winding loss value, PKML ' low short circuit in winding losses into mesolow capacity larger side for conversion, is represented respectively
For：
Wherein, PKhm, PKhl and PKml be respectively the loss of senior middle school short circuit in winding, the loss of height short circuit in winding and in low winding
Short circuit loss, Sh, Sm and Sl are respectively high-pressure side rated capacity, medium voltage side rated capacity and low-pressure side rated capacity；
S=min { Sm, Sl }；
(2) high pressure winding equivalent reactance Xh, middle pressure winding equivalent reactance Xm and low pressure winding equivalent reactance Xl are expressed as：
Wherein, VH, VM and VL are respectively high pressure winding, middle pressure winding, low pressure winding impedance voltage percentage, are represented respectively
For：
Wherein, UKhm is senior middle school's short circuit in winding voltage percentage, and UKhl is height short circuit in winding voltage percentage, and UKml is
In low short circuit in winding voltage percentage；
(3) excitatory resistance G0 and excitatory reactance B0 are expressed as：
Wherein, DP0 is open circuit loss, and DI0 is no-load current percentage.
Compared with prior art, the beneficial effects of the present invention are：
With existing domestic main flow PSD-PFNT and the independent calculating transformer of PSASP simulation calculation programs flow data parameter
Method compare, the present invention consider conventional two kind computation model of the power transformer in Load flow calculation, transformer nameplate
Parameter and flow data parameter are all retained, and transformer nameplate parameter, automatic computer sim- ulation meter are managed by data base normalization
Calculation program data, improve the accuracy and reliability of transformer flow data parameter, greatly improve design, planning and operation people
The operating efficiency that member's data prepare, is that the accurate of calculation of tidal current provides safeguard.
Brief description of the drawings
Fig. 1 is the method flow diagram for flow data parameter by transformer nameplate Parameter Switch；
Fig. 2 is PSD-PFNT depressor model schematics in the embodiment of the present invention；
Fig. 3 is PSASP transformer model schematic diagrames in the embodiment of the present invention.
Embodiment
The present invention is described in further detail below in conjunction with the accompanying drawings.
Operation, planning and the design department of power system pass through frequently with electric system simulation software for calculation to calculate operation electricity
The security and stability of net, the reasonable and feasibility of planning and designing power network.Load flow calculation is one of basic simulation calculation, Load flow calculation
The accurate of initial data is to ensure that the correct main factor of result of calculation.Generator, transformer, circuit, reactive-load compensation equipment,
Load etc. constitutes original Load flow calculation file, wherein the computation model species being related to by the Load flow calculation of transformer equipment with parameter
Many, calculating parameter is also more, the trend with existing domestic main flow PSD-PFNT and the independent calculating transformer of PSASP simulation calculation programs
The method of data parameters is compared, and the present invention considers conventional two kind computation model of the power transformer in Load flow calculation, is become
Depressor initial data and trend use tricks to count according to being all retained, and the original nameplate data of transformer are managed by data base normalization,
Automatic computer sim- ulation calculation procedure data, improve accuracy and reliability that transformer calculates data, greatly improve design, rule
The operating efficiency prepared with operations staff's data is drawn, is that the accurate of calculation of tidal current provides safeguard.
Such as Fig. 1, the present invention provides a kind of by the method that transformer nameplate Parameter Switch is flow data parameter, methods described
Comprise the following steps：
Step 1：Define transformer nameplate parameter list；
Step 2：Define transformer flow data parameter list；
Step 3：It is PSD-PFNT and PSASP flow data parameters by transformer nameplate Parameter Switch.
In the step 1, the often inscription of row storage two-winding transformer or three-winding transformer in transformer nameplate parameter list
Board parameter, including transformer model TYPP, Transformer Winding number WIND, nameplate wiring WICB, rated capacity, rated voltage, change
Depressor short-circuit test data, No-load Test of Transformer data and the affiliated power plant and substation's information of transformer.
For two-winding transformer, rated capacity includes high-pressure side rated capacity Sh and low-pressure side rated capacity Sl, dimension
It is MVA；
For three-winding transformer, rated capacity includes high-pressure side rated capacity Sh, medium voltage side rated capacity Sm and low pressure
Side rated capacity Sl, dimension is MVA.
For two-winding transformer, rated voltage includes high-pressure side rated voltage Vh and low-pressure side rated voltage Vl, dimension
It is kV；
For three-winding transformer, rated voltage includes high-pressure side rated voltage Vh, medium voltage side rated voltage Vm and low pressure
Side rated voltage Vl, dimension is kV.
For two-winding transformer, transformer short-circuit test data includes height short circuit in winding and PKhl and height winding is lost
Short-circuit voltage percentage UKhl, dimension is kW；
For three-winding transformer, transformer short-circuit test data includes senior middle school short circuit in winding loss PKhm, height winding
Short circuit loss PKhl, in low short circuit in winding loss PKml, senior middle school short circuit in winding voltage percentage UKhm, height short circuit in winding voltage
Percentage UKhl low short circuit in winding voltage percentage UKml with, dimension is kW.
For two-winding transformer and three-winding transformer, No-load Test of Transformer data include open circuit loss DP0 and sky
Carry electric current percentage DI0.
The affiliated power plant and substation's information of transformer includes plant stand title STAN and its affiliated province name PRV, putting equipment in service time YER and set
It is standby to exit time YERT.
In the step 2, often row deposits the trend of two-winding transformer or three-winding transformer in flow data parameter list
Data parameters, including system reference capacity SB, reference voltage, transformer Equivalent Circuit Parameter and Load flow calculation topological relation etc.
Information.
For two-winding transformer, reference voltage includes high-pressure side reference voltage V Bh and low-pressure side reference voltage V Bl, single
Position is kV；
For three-winding transformer, reference voltage includes high-pressure side reference voltage V Bh, medium voltage side reference voltage V Bm and low
Side reference voltage VBl is pressed, unit is kV.
For two-winding transformer, transformer Equivalent Circuit Parameter includes high pressure side resistance Rh, high-pressure side reactance Xh, excitatory
Conductance G0, magnetizing susceptance B0 and high-pressure side no-load voltage ratio TKh, dimension is perunit value；
For three-winding transformer, transformer Equivalent Circuit Parameter includes high pressure side resistance Rh, medium voltage side resistance Rm, low pressure
Side resistance Rl, high-pressure side reactance Xh, medium voltage side reactance Xm, low-pressure side reactance Xl, excitatory conductance G0, magnetizing susceptance B0, high-pressure side
No-load voltage ratio TKh and medium voltage side no-load voltage ratio TKm, dimension is perunit value.
Load flow calculation includes high-voltage side bus title nameh, medium voltage side bus title namem, low-pressure side bus with information
Title namel, neutral point bus title namez, controlled nodename kname and controlled voltage vcon.
Such as Fig. 2, PSD-PFNT transformer computation models are an IJ branch roads, including two calculating buses of I, J, transformer
Impedance Z t, no-load voltage ratio is TKi and TKj two ideal transformers.Respectively add an ideal transformer, transformer respectively in I sides, J sides
No-load voltage ratio is TKi and TKj, and transformer impedance Zt is placed on the standard side of I, J both sides, therefore, and PSD-PFNT transformers computation model becomes
Depressor impedance Z t or transformer admittance and I, J side voltage per unit value are not related, capacity, short circuit loss, sky only with transformer
Load-loss, short-circuit voltage percentage, no-load current percentage and system reference capacity are relevant.
Such as Fig. 3, PSASP transformer computation models are an IJ branch roads, including two calculating buses of I, J, transformer impedance
Zt, no-load voltage ratio is TKj ideal transformer.Add ideal transformer in the J sides of IJ branch roads, the no-load voltage ratio of J sides is TKj, and I sides are standards
Side, impedance Z t or admittance the branch road conversion of no-load voltage ratio transformer are to the standard side of ideal transformer, and therefore, impedance value or admittance value are needed
Take reference voltage and reality I sides virtual voltage to be converted with I sides, i.e., be corrected with I sides voltage per unit value；
For two-winding transformer, PSD-PFNT Load flow calculations include PSD-PFNT transformer models with flow data parameter
Equivalent resistance RhPSD-PFNT, equivalent reactance XhPSD-PFNT, excitatory resistance G0PSD-PFNTWith excitatory reactance B0PSD-PFNT；
PSASP Load flow calculations include the equivalent resistance Rh of PSASP transformer models with flow data parameterPSASP, equivalent electric
Anti- XhPSASP, excitatory resistance G0PSASPWith excitatory reactance B0PSASP。。
The equivalent resistance Rh of PSD-PFNT transformer modelsPSD-PFNT, equivalent reactance XhPSD-PFNT, excitatory resistance G0PSD-PFNT
With excitatory reactance B0PSD-PFNTIt is expressed as：
Wherein, PKhl is lost for height short circuit in winding, and UKhl is height short circuit in winding voltage percentage, and SB is system benchmark
Capacity, Sh is high-pressure side rated capacity, and DP0 is open circuit loss, and DI0 is no-load current percentage.
The equivalent resistance Rh of PSASP transformer modelsPSASP, equivalent reactance XhPSASP, excitatory resistance G0PSASPWith excitatory reactance
B0PSASPIt is expressed as：
Wherein, VBl is low-pressure side reference voltage, and Vl is low-pressure side rated voltage.
PSD-PFNT Load flow calculations include transformation with flow data parameter and PSASP Load flow calculations flow data parameter
Device high-pressure side, medium voltage side, low-pressure side equivalent resistance Rh, Rm and Rl, high voltage side of transformer, medium voltage side, low-pressure side equivalent reactance Xh,
Xm and Xl, excitatory resistance G0 and excitatory reactance B0.
(1) high voltage side of transformer equivalent resistance Rh, medium voltage side equivalent resistance Rm and low-pressure side equivalent resistance Rl are expressed as：
Wherein, SB is system reference capacity, and Sh is high-pressure side rated capacity；PH, PM and PL are respectively high pressure winding, middle pressure
Winding, low pressure winding short circuit loss, are expressed as：
Wherein, PKHM ' is senior middle school's short circuit in winding loss of conversion to high pressure content, and PKHL ' is that high pressure content is arrived in conversion
Height short circuit in winding loss value, PKML ' low short circuit in winding losses into mesolow capacity larger side for conversion, is represented respectively
For：
Wherein, PKhm, PKhl and PKml be respectively the loss of senior middle school short circuit in winding, the loss of height short circuit in winding and in low winding
Short circuit loss, Sh, Sm and Sl are respectively high-pressure side rated capacity, medium voltage side rated capacity and low-pressure side rated capacity；
S=min { Sm, Sl }；
(2) high pressure winding equivalent reactance Xh, middle pressure winding equivalent reactance Xm and low pressure winding equivalent reactance Xl are expressed as：
Wherein, VH, VM and VL are respectively high pressure winding, middle pressure winding, low pressure winding impedance voltage percentage, are represented respectively
For：
Wherein, UKhm is senior middle school's short circuit in winding voltage percentage, and UKhl is height short circuit in winding voltage percentage, and UKml is
In low short circuit in winding voltage percentage；
(3) excitatory resistance G0 and excitatory reactance B0 are expressed as：
Wherein, DP0 is open circuit loss, and DI0 is no-load current percentage.
Finally it should be noted that：The above embodiments are merely illustrative of the technical scheme of the present invention and are not intended to be limiting thereof, institute
The those of ordinary skill in category field with reference to above-described embodiment still can to the present invention embodiment modify or
Equivalent substitution, these any modifications or equivalent substitution without departing from spirit and scope of the invention are applying for this pending hair
Within bright claims.
Claims (1)
1. it is a kind of by method of the transformer nameplate Parameter Switch for flow data parameter, it is characterised in that：Methods described include with
Lower step：
Step 1：Define transformer nameplate parameter list；
Step 2：Define transformer flow data parameter list；
Step 3：It is PSD-PFNT and PSASP Load flow calculation flow data parameters by transformer nameplate Parameter Switch；
In the step 1, often the nameplate of row storage two-winding transformer or three-winding transformer is joined in transformer nameplate parameter list
Number, including transformer model TYPP, Transformer Winding number WIND, nameplate wiring WICB, rated capacity, rated voltage, transformer
Short-circuit test data, No-load Test of Transformer data and the affiliated power plant and substation's information of transformer；
For two-winding transformer, rated capacity includes high-pressure side rated capacity Sh and low-pressure side rated capacity Sl, and dimension is
MVA；
For three-winding transformer, rated capacity includes high-pressure side rated capacity Sh, medium voltage side rated capacity Sm and low-pressure side volume
Constant volume Sl, dimension is MVA；
For two-winding transformer, rated voltage includes high-pressure side rated voltage Vh and low-pressure side rated voltage Vl, and dimension is
kV；
For three-winding transformer, rated voltage includes high-pressure side rated voltage Vh, medium voltage side rated voltage Vm and low-pressure side volume
Determine voltage Vl, dimension is kV；
For two-winding transformer, transformer short-circuit test data includes height short circuit in winding and PKhl and height short circuit in winding is lost
Voltage percentage UKhl, dimension is kW；
For three-winding transformer, transformer short-circuit test data includes senior middle school short circuit in winding loss PKhm, height short circuit in winding
Be lost PKhl, in low short circuit in winding loss PKml, senior middle school short circuit in winding voltage percentage UKhm, height short circuit in winding voltage percentage
Number UKhl low short circuit in winding voltage percentage UKml with, dimension is kW；
For two-winding transformer and three-winding transformer, No-load Test of Transformer data include open circuit loss DP0 and zero load electricity
Flow percentage DI0；
The affiliated power plant and substation's information of transformer includes plant stand title STAN and its affiliated province name PRV, and putting equipment in service time YER and equipment are moved back
Go out time YERT；
In the step 2, often row deposits the flow data of two-winding transformer or three-winding transformer in flow data parameter list
Parameter, including system reference capacity SB, reference voltage, transformer Equivalent Circuit Parameter and Load flow calculation topological relation；
For two-winding transformer, reference voltage includes high-pressure side reference voltage V Bh and low-pressure side reference voltage V Bl, and unit is
kV；
For three-winding transformer, reference voltage includes high-pressure side reference voltage V Bh, medium voltage side reference voltage V Bm and low-pressure side
Reference voltage V Bl, unit is kV；
For two-winding transformer, transformer Equivalent Circuit Parameter includes high pressure side resistance Rh, high-pressure side reactance Xh, excitatory conductance
G0, magnetizing susceptance B0 and high-pressure side no-load voltage ratio TKh, dimension is perunit value；
For three-winding transformer, transformer Equivalent Circuit Parameter includes high pressure side resistance Rh, medium voltage side resistance Rm, low-pressure side electricity
Hinder Rl, high-pressure side reactance Xh, medium voltage side reactance Xm, low-pressure side reactance Xl, excitatory conductance G0, magnetizing susceptance B0, high-pressure side no-load voltage ratio
TKh and medium voltage side no-load voltage ratio TKm, dimension is per unit value；
Load flow calculation includes high-voltage side bus title nameh, medium voltage side bus title namem, low-pressure side bus title with information
Namel, neutral point bus title namez, controlled nodename kname and controlled voltage vcon；
In the step 3, for two-winding transformer, PSD-PFNT Load flow calculations include PSD- with flow data Parameter
The equivalent resistance Rh of PFNT transformer modelsPSD-PFNT, equivalent reactance XhPSD-PFNT, excitatory resistance G0PSD-PFNTWith excitatory reactance
B0PSD-PFNT；
PSASP Load flow calculations include the equivalent resistance Rh of PSASP transformer models with flow data parameterPSASP, equivalent reactance
XhPSASP, excitatory resistance G0PSASPWith excitatory reactance B0PSASP；
The equivalent resistance Rh of PSD-PFNT transformer modelsPSD-PFNT, equivalent reactance XhPSD-PFNT, excitatory resistance G0PSD-PFNTWith swash
The anti-B0 of magnetoelectricityPSD-PFNTIt is expressed as：
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<mo>-</mo>
<mrow>
<mo>(</mo>
<mn>3</mn>
<mo>)</mo>
</mrow>
</mrow>
<mrow>
<mi>B</mi>
<msub>
<mn>0</mn>
<mrow>
<mi>P</mi>
<mi>S</mi>
<mi>D</mi>
<mo>-</mo>
<mi>P</mi>
<mi>F</mi>
<mi>N</mi>
<mi>T</mi>
</mrow>
</msub>
<mo>=</mo>
<mfrac>
<mrow>
<mi>D</mi>
<mi>I</mi>
<mn>0</mn>
<mo>*</mo>
<mi>S</mi>
<mi>h</mi>
</mrow>
<mrow>
<mn>100</mn>
<mo>*</mo>
<mi>S</mi>
<mi>B</mi>
</mrow>
</mfrac>
<mo>-</mo>
<mo>-</mo>
<mo>-</mo>
<mrow>
<mo>(</mo>
<mn>4</mn>
<mo>)</mo>
</mrow>
</mrow>
Wherein, PKhl is lost for height short circuit in winding, and UKhl is height short circuit in winding voltage percentage, and SB holds for system benchmark
Amount, Sh is high-pressure side rated capacity, and DP0 is open circuit loss, and DI0 is no-load current percentage；
The equivalent resistance Rh of PSASP transformer modelsPSASP, equivalent reactance XhPSASP, excitatory resistance G0PSASPWith excitatory reactance
B0PSASPIt is expressed as：
<mrow>
<msub>
<mi>Rh</mi>
<mrow>
<mi>P</mi>
<mi>S</mi>
<mi>A</mi>
<mi>S</mi>
<mi>P</mi>
</mrow>
</msub>
<mo>=</mo>
<mfrac>
<mrow>
<mi>P</mi>
<mi>K</mi>
<mi>h</mi>
<mi>l</mi>
<mo>*</mo>
<mi>S</mi>
<mi>B</mi>
</mrow>
<mrow>
<mn>1000</mn>
<mo>*</mo>
<mi>S</mi>
<mi>h</mi>
<mo>*</mo>
<mi>S</mi>
<mi>h</mi>
</mrow>
</mfrac>
<mo>*</mo>
<mfrac>
<mrow>
<msup>
<mi>Vl</mi>
<mn>2</mn>
</msup>
</mrow>
<mrow>
<msup>
<mi>VBl</mi>
<mn>2</mn>
</msup>
</mrow>
</mfrac>
<mo>-</mo>
<mo>-</mo>
<mo>-</mo>
<mrow>
<mo>(</mo>
<mn>5</mn>
<mo>)</mo>
</mrow>
</mrow>
<mrow>
<msub>
<mi>Xh</mi>
<mrow>
<mi>P</mi>
<mi>S</mi>
<mi>A</mi>
<mi>S</mi>
<mi>P</mi>
</mrow>
</msub>
<mo>=</mo>
<mfrac>
<mrow>
<mi>U</mi>
<mi>K</mi>
<mi>h</mi>
<mi>l</mi>
<mo>*</mo>
<mi>S</mi>
<mi>B</mi>
</mrow>
<mrow>
<mn>100</mn>
<mo>*</mo>
<mi>S</mi>
<mi>h</mi>
</mrow>
</mfrac>
<mo>*</mo>
<mfrac>
<mrow>
<msup>
<mi>Vl</mi>
<mn>2</mn>
</msup>
</mrow>
<mrow>
<msup>
<mi>VBl</mi>
<mn>2</mn>
</msup>
</mrow>
</mfrac>
<mo>-</mo>
<mo>-</mo>
<mo>-</mo>
<mrow>
<mo>(</mo>
<mn>6</mn>
<mo>)</mo>
</mrow>
</mrow>
<mrow>
<mi>G</mi>
<msub>
<mn>0</mn>
<mrow>
<mi>P</mi>
<mi>S</mi>
<mi>A</mi>
<mi>S</mi>
<mi>P</mi>
</mrow>
</msub>
<mo>=</mo>
<mfrac>
<mrow>
<mi>D</mi>
<mi>P</mi>
<mn>0</mn>
</mrow>
<mrow>
<mn>1000</mn>
<mo>*</mo>
<mi>S</mi>
<mi>B</mi>
</mrow>
</mfrac>
<mo>*</mo>
<mfrac>
<mrow>
<msup>
<mi>VBl</mi>
<mn>2</mn>
</msup>
</mrow>
<mrow>
<msup>
<mi>Vl</mi>
<mn>2</mn>
</msup>
</mrow>
</mfrac>
<mo>-</mo>
<mo>-</mo>
<mo>-</mo>
<mrow>
<mo>(</mo>
<mn>7</mn>
<mo>)</mo>
</mrow>
</mrow>
<mrow>
<mi>B</mi>
<msub>
<mn>0</mn>
<mrow>
<mi>P</mi>
<mi>S</mi>
<mi>A</mi>
<mi>S</mi>
<mi>P</mi>
</mrow>
</msub>
<mo>=</mo>
<mfrac>
<mrow>
<mi>D</mi>
<mi>I</mi>
<mn>0</mn>
<mo>*</mo>
<mi>S</mi>
<mi>h</mi>
</mrow>
<mrow>
<mn>100</mn>
<mo>*</mo>
<mi>S</mi>
<mi>B</mi>
</mrow>
</mfrac>
<mo>*</mo>
<mfrac>
<mrow>
<msup>
<mi>VBl</mi>
<mn>2</mn>
</msup>
</mrow>
<mrow>
<msup>
<mi>Vl</mi>
<mn>2</mn>
</msup>
</mrow>
</mfrac>
<mo>-</mo>
<mo>-</mo>
<mo>-</mo>
<mrow>
<mo>(</mo>
<mn>8</mn>
<mo>)</mo>
</mrow>
</mrow>
Wherein, VBl is low-pressure side reference voltage, and Vl is low-pressure side rated voltage；
In the step 3, for two-winding transformer, PSD-PFNT Load flow calculations flow data and PSASP Load flow calculations are used
Flow data parameter include high voltage side of transformer, medium voltage side, low-pressure side equivalent resistance Rh, Rm and Rl, high voltage side of transformer, in
Press side, low-pressure side equivalent reactance Xh, Xm and Xl, excitatory resistance G0 and excitatory reactance B0；
(1) high voltage side of transformer equivalent resistance Rh, medium voltage side equivalent resistance Rm and low-pressure side equivalent resistance Rl are expressed as：
<mrow>
<mtable>
<mtr>
<mtd>
<mrow>
<mi>R</mi>
<mi>h</mi>
<mo>=</mo>
<mi>P</mi>
<mi>H</mi>
<mo>*</mo>
<mfrac>
<mrow>
<mi>S</mi>
<mi>B</mi>
</mrow>
<mrow>
<mn>1000</mn>
<mo>*</mo>
<msup>
<mi>Sh</mi>
<mn>2</mn>
</msup>
</mrow>
</mfrac>
</mrow>
</mtd>
</mtr>
<mtr>
<mtd>
<mrow>
<mi>R</mi>
<mi>m</mi>
<mo>=</mo>
<mi>P</mi>
<mi>M</mi>
<mo>*</mo>
<mfrac>
<mrow>
<mi>S</mi>
<mi>B</mi>
</mrow>
<mrow>
<mn>1000</mn>
<mo>*</mo>
<msup>
<mi>Sh</mi>
<mn>2</mn>
</msup>
</mrow>
</mfrac>
</mrow>
</mtd>
</mtr>
<mtr>
<mtd>
<mrow>
<mi>R</mi>
<mi>l</mi>
<mo>=</mo>
<mi>P</mi>
<mi>L</mi>
<mo>*</mo>
<mfrac>
<mrow>
<mi>S</mi>
<mi>B</mi>
</mrow>
<mrow>
<mn>1000</mn>
<mo>*</mo>
<msup>
<mi>Sh</mi>
<mn>2</mn>
</msup>
</mrow>
</mfrac>
</mrow>
</mtd>
</mtr>
</mtable>
<mo>-</mo>
<mo>-</mo>
<mo>-</mo>
<mrow>
<mo>(</mo>
<mn>9</mn>
<mo>)</mo>
</mrow>
</mrow>
Wherein, SB is system reference capacity, and Sh is high-pressure side rated capacity；PH, PM and PL be respectively high pressure winding, middle pressure around
Group, low pressure winding short circuit loss, are expressed as：
<mrow>
<mtable>
<mtr>
<mtd>
<mrow>
<mi>P</mi>
<mi>H</mi>
<mo>=</mo>
<mn>0.5</mn>
<mo>*</mo>
<mrow>
<mo>(</mo>
<msup>
<mi>PKHM</mi>
<mo>&prime;</mo>
</msup>
<mo>+</mo>
<msup>
<mi>PKHL</mi>
<mo>&prime;</mo>
</msup>
<mo>-</mo>
<msup>
<mi>PKML</mi>
<mo>&prime;</mo>
</msup>
<mo>)</mo>
</mrow>
</mrow>
</mtd>
</mtr>
<mtr>
<mtd>
<mrow>
<mi>P</mi>
<mi>M</mi>
<mo>=</mo>
<mn>0.5</mn>
<mo>*</mo>
<mrow>
<mo>(</mo>
<msup>
<mi>PKML</mi>
<mo>&prime;</mo>
</msup>
<mo>+</mo>
<msup>
<mi>PKHM</mi>
<mo>&prime;</mo>
</msup>
<mo>-</mo>
<msup>
<mi>PKHL</mi>
<mo>&prime;</mo>
</msup>
<mo>)</mo>
</mrow>
</mrow>
</mtd>
</mtr>
<mtr>
<mtd>
<mrow>
<mi>P</mi>
<mi>L</mi>
<mo>=</mo>
<mn>0.5</mn>
<mo>*</mo>
<mrow>
<mo>(</mo>
<msup>
<mi>PKHL</mi>
<mo>&prime;</mo>
</msup>
<mo>+</mo>
<msup>
<mi>PKML</mi>
<mo>&prime;</mo>
</msup>
<mo>-</mo>
<msup>
<mi>PKHM</mi>
<mo>&prime;</mo>
</msup>
<mo>)</mo>
</mrow>
</mrow>
</mtd>
</mtr>
</mtable>
<mo>-</mo>
<mo>-</mo>
<mo>-</mo>
<mrow>
<mo>(</mo>
<mn>10</mn>
<mo>)</mo>
</mrow>
</mrow>
Wherein, PKHM ' is senior middle school's short circuit in winding loss of conversion to high pressure content, and PKHL ' is height of the conversion to high pressure content
Short circuit in winding loss value, PKML ' low short circuit in winding losses into mesolow capacity larger side for conversion, is expressed as：
<mrow>
<mtable>
<mtr>
<mtd>
<mrow>
<msup>
<mi>PKHM</mi>
<mo>&prime;</mo>
</msup>
<mo>=</mo>
<mi>P</mi>
<mi>K</mi>
<mi>h</mi>
<mi>m</mi>
<mo>&CenterDot;</mo>
<msup>
<mrow>
<mo>(</mo>
<mi>S</mi>
<mi>h</mi>
<mo>/</mo>
<mi>S</mi>
<mi>m</mi>
<mo>)</mo>
</mrow>
<mn>2</mn>
</msup>
</mrow>
</mtd>
</mtr>
<mtr>
<mtd>
<mrow>
<msup>
<mi>PKHL</mi>
<mo>&prime;</mo>
</msup>
<mo>=</mo>
<mi>P</mi>
<mi>K</mi>
<mi>h</mi>
<mi>l</mi>
<mo>&CenterDot;</mo>
<msup>
<mrow>
<mo>(</mo>
<mi>S</mi>
<mi>h</mi>
<mo>/</mo>
<mi>S</mi>
<mi>l</mi>
<mo>)</mo>
</mrow>
<mn>2</mn>
</msup>
</mrow>
</mtd>
</mtr>
<mtr>
<mtd>
<mrow>
<msup>
<mi>PKML</mi>
<mo>&prime;</mo>
</msup>
<mo>=</mo>
<mi>P</mi>
<mi>K</mi>
<mi>m</mi>
<mi>l</mi>
<mo>&CenterDot;</mo>
<msup>
<mrow>
<mo>(</mo>
<mi>S</mi>
<mi>h</mi>
<mo>/</mo>
<mi>S</mi>
<mo>)</mo>
</mrow>
<mn>2</mn>
</msup>
</mrow>
</mtd>
</mtr>
</mtable>
<mo>-</mo>
<mo>-</mo>
<mo>-</mo>
<mrow>
<mo>(</mo>
<mn>11</mn>
<mo>)</mo>
</mrow>
</mrow>
Wherein, PKhm, PKhl and PKml be respectively the loss of senior middle school short circuit in winding, the loss of height short circuit in winding and in low short circuit in winding
Loss, Sh, Sm and Sl are respectively high-pressure side rated capacity, medium voltage side rated capacity and low-pressure side rated capacity；S=min Sm,
Sl}；
(2) high pressure winding equivalent reactance Xh, middle pressure winding equivalent reactance Xm and low pressure winding equivalent reactance Xl are expressed as：
<mrow>
<mtable>
<mtr>
<mtd>
<mrow>
<mi>X</mi>
<mi>h</mi>
<mo>=</mo>
<mi>V</mi>
<mi>H</mi>
<mo>*</mo>
<mfrac>
<mrow>
<mi>S</mi>
<mi>B</mi>
</mrow>
<mrow>
<mn>100</mn>
<mo>*</mo>
<mi>S</mi>
<mi>h</mi>
</mrow>
</mfrac>
</mrow>
</mtd>
</mtr>
<mtr>
<mtd>
<mrow>
<mi>X</mi>
<mi>m</mi>
<mo>=</mo>
<mi>V</mi>
<mi>M</mi>
<mo>*</mo>
<mfrac>
<mrow>
<mi>S</mi>
<mi>B</mi>
</mrow>
<mrow>
<mn>100</mn>
<mo>*</mo>
<mi>S</mi>
<mi>h</mi>
</mrow>
</mfrac>
</mrow>
</mtd>
</mtr>
<mtr>
<mtd>
<mrow>
<mi>X</mi>
<mi>l</mi>
<mo>=</mo>
<mi>V</mi>
<mi>L</mi>
<mo>*</mo>
<mfrac>
<mrow>
<mi>S</mi>
<mi>B</mi>
</mrow>
<mrow>
<mn>100</mn>
<mo>*</mo>
<mi>S</mi>
<mi>h</mi>
</mrow>
</mfrac>
</mrow>
</mtd>
</mtr>
</mtable>
<mo>-</mo>
<mo>-</mo>
<mo>-</mo>
<mrow>
<mo>(</mo>
<mn>12</mn>
<mo>)</mo>
</mrow>
</mrow>
Wherein, SB be system reference capacity, Sh be high-pressure side rated capacity, VH, VM and VL be respectively high pressure winding, middle pressure around
Group, low pressure winding impedance voltage percentage, are expressed as：
<mrow>
<mtable>
<mtr>
<mtd>
<mrow>
<mi>V</mi>
<mi>H</mi>
<mo>=</mo>
<mn>0.5</mn>
<mo>*</mo>
<mrow>
<mo>(</mo>
<mi>U</mi>
<mi>K</mi>
<mi>h</mi>
<mi>m</mi>
<mo>*</mo>
<mi>U</mi>
<mi>K</mi>
<mi>m</mi>
<mi>l</mi>
<mo>-</mo>
<mi>U</mi>
<mi>K</mi>
<mi>m</mi>
<mi>l</mi>
<mo>)</mo>
</mrow>
</mrow>
</mtd>
</mtr>
<mtr>
<mtd>
<mrow>
<mi>V</mi>
<mi>M</mi>
<mo>=</mo>
<mn>0.5</mn>
<mo>*</mo>
<mrow>
<mo>(</mo>
<mi>U</mi>
<mi>K</mi>
<mi>h</mi>
<mi>m</mi>
<mo>*</mo>
<mi>U</mi>
<mi>K</mi>
<mi>m</mi>
<mi>l</mi>
<mo>-</mo>
<mi>U</mi>
<mi>K</mi>
<mi>h</mi>
<mi>l</mi>
<mo>)</mo>
</mrow>
</mrow>
</mtd>
</mtr>
<mtr>
<mtd>
<mrow>
<mi>V</mi>
<mi>L</mi>
<mo>=</mo>
<mn>0.5</mn>
<mo>*</mo>
<mrow>
<mo>(</mo>
<mi>U</mi>
<mi>K</mi>
<mi>h</mi>
<mi>l</mi>
<mo>*</mo>
<mi>U</mi>
<mi>K</mi>
<mi>m</mi>
<mi>l</mi>
<mo>-</mo>
<mi>U</mi>
<mi>K</mi>
<mi>h</mi>
<mi>m</mi>
<mo>)</mo>
</mrow>
</mrow>
</mtd>
</mtr>
</mtable>
<mo>-</mo>
<mo>-</mo>
<mo>-</mo>
<mrow>
<mo>(</mo>
<mn>13</mn>
<mo>)</mo>
</mrow>
</mrow>
Wherein, UKhm is senior middle school's short circuit in winding voltage percentage, and UKhl is height short circuit in winding voltage percentage, and UKml is low in being
Short circuit in winding voltage percentage；
(3) excitatory resistance G0 and excitatory reactance B0 are expressed as：
<mrow>
<mi>G</mi>
<mn>0</mn>
<mo>=</mo>
<mfrac>
<mrow>
<mi>D</mi>
<mi>P</mi>
<mn>0</mn>
</mrow>
<mrow>
<mn>1000</mn>
<mo>*</mo>
<mi>S</mi>
<mi>B</mi>
</mrow>
</mfrac>
<mo>-</mo>
<mo>-</mo>
<mo>-</mo>
<mrow>
<mo>(</mo>
<mn>14</mn>
<mo>)</mo>
</mrow>
</mrow>
<mrow>
<mi>B</mi>
<mn>0</mn>
<mo>=</mo>
<mfrac>
<mrow>
<mi>D</mi>
<mi>I</mi>
<mn>0</mn>
<mo>*</mo>
<mi>S</mi>
<mi>h</mi>
</mrow>
<mrow>
<mn>100</mn>
<mo>*</mo>
<mi>S</mi>
<mi>B</mi>
</mrow>
</mfrac>
<mo>-</mo>
<mo>-</mo>
<mo>-</mo>
<mrow>
<mo>(</mo>
<mn>15</mn>
<mo>)</mo>
</mrow>
</mrow>
Wherein, SB is system reference capacity, and Sh is high-pressure side rated capacity, and DP0 is open circuit loss, and DI0 is no-load current percentage
Number.
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| CN102521343A (en) * | 2011-12-09 | 2012-06-27 | 山东大学 | Transformation method of input data of simulation software of power system |
| CN103984822A (en) * | 2014-05-16 | 2014-08-13 | 国家电网公司 | Three phase flow implementation method based on advanced digital power system simulator |
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| CN102521343A (en) * | 2011-12-09 | 2012-06-27 | 山东大学 | Transformation method of input data of simulation software of power system |
| CN103984822A (en) * | 2014-05-16 | 2014-08-13 | 国家电网公司 | Three phase flow implementation method based on advanced digital power system simulator |
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