IEEE PSAP PTI data format

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Partial Description of the IEEE Common Data Format for the   
Exchange of Solved Load Flow Data
5 c" \5 Z9 g1 v0 }2 k5 x- LThe complete description can be found in the paper "Common Data
Format for the Exchange of Solved Load Flow Data", Working Group on a
; T% n" z' I/ b  ^( `- H. jCommon Format for the Exchange of Solved Load Flow Data, _IEEE
2 J% I8 ~0 K1 p2 K7 ITransactions on Power Apparatus and Systems_, Vol. PAS-92, No. 6,
November/December 1973, pp. 1916-1925.
The data file has lines of up to 128 characters. The lines are grouped
: E" c: p& x6 G: `into sections with section headers. Data items are entered in specific
columns. No blank items are allowed, enter zeros instead. Floating point
items should have explicit decimal point. No implicit decimal points
are used.
9 d9 r8 p) S& ]) j( b% f2 o, lData type codes: A - Alphanumeric (no special characters)
                 I - Integer
& e3 _& \6 `% I% W4 ^* ]0 Y                 F - Floating point
                 * - Mandatory item
Title Data
==========
8 T1 |- z2 d1 q2 CFirst card in file.
8 ^1 \: m$ s' KColumns  2- 9   Date, in format DD/MM/YY with leading zeros. If no date
4 r2 [: V6 i% t) U                provided, use 0b/0b/0b where b is blank.
5 y9 w3 S3 \4 f% N$ F; r6 [8 SColumns 11-30   Originator's name (A)
+ y: o# M2 b, kColumns 32-37   MVA Base (F*)
Columns 39-42   Year (I)
Column  44      Season (S - Summer, W - Winter)
Column  46-73   Case identification (A)
Bus Data *
2 y: U" l' z1 R==========
& c" }; j  V# ~Section start card *:
) l' V1 c; e0 y& Y5 \! t3 [---------------------
Columns  1-16   BUS DATA FOLLOWS (not clear that any more than BUS in
                1-3 is significant) *
+ t) U: P( o- {( G7 `Columns  ?- ?   NNNNN ITEMS (column not clear, I would not count on this)
) r7 v5 `* L6 {# e/ EBus data cards *:
2 k2 E; b: G0 `* q* t-----------------
/ @3 D8 S. F" s! F5 u+ s5 \Columns  1- 4   Bus number (I) *
Columns  7-17   Name (A) (left justify) *
Columns 19-20   Load flow area number (I) Don't use zero! *
% o2 O, A. M+ B2 k5 FColumns 21-23   Loss zone number (I)
Columns 25-26   Type (I) *
                 0 - Unregulated (load, PQ)
                 1 - Hold MVAR generation within voltage limits, (PQ)
* c+ b, R6 _' Z. ^9 K; W5 C! w                 2 - Hold voltage within VAR limits (gen, PV)
* {  Q- x4 Z0 Y; J! @% O                 3 - Hold voltage and angle (swing, V-Theta) (must always
% l& g- W7 i( w  Q9 b/ V                      have one)
4 X# L( q/ V9 p  W: m6 IColumns 28-33   Final voltage, p.u. (F) *
) M9 D3 v* ~1 W1 dColumns 34-40   Final angle, degrees (F) *
Columns 41-49   Load MW (F) *
, P1 J7 v% r( a+ zColumns 50-59   Load MVAR (F) *
Columns 60-67   Generation MW (F) *
Columns 68-75   Generation MVAR (F) *
Columns 77-83   Base KV (F)
Columns 85-90   Desired volts (pu) (F) (This is desired remote voltage if
' n0 Y+ k1 x. Z+ l$ y! h( @                this bus is controlling another bus.
6 F  a8 c! _' n  dColumns 91-98   Maximum MVAR or voltage limit (F)
6 b, @9 y3 n2 Q% vColumns 99-106  Minimum MVAR or voltage limit (F)
+ s! V$ k3 k9 ~6 mColumns 107-114 Shunt conductance G (per unit) (F) *
$ f0 a' y4 U1 z9 o1 YColumns 115-122 Shunt susceptance B (per unit) (F) *
; X* P! g" O; g0 `& j9 wColumns 124-127 Remote controlled bus number
Section end card:
3 ]0 J; s  Z" A7 {: o-----------------
3 w: |3 f% P. g# c; b( XColumns  1- 4   -999
Branch Data *
# E: W, \% z! i0 K, q; m0 N/ I=============
) C8 ?- K; i4 }" m. J' O+ K% o8 GSection start card *:
% ~- P& X" E1 C+ [1 P$ x---------------------
Columns  1-16   BRANCH DATA FOLLOWS (not clear that any more than BRANCH
; u) M# K6 X9 ]8 f$ G                is significant) *
Columns 40?- ?  NNNNN ITEMS (column not clear, I would not count on this)
Branch data cards *:
--------------------
Columns  1- 4   Tap bus number (I) *
2 h6 c) Q' X: ~% z  l$ E' C                 For transformers or phase shifters, the side of the model
- q  p; w$ K/ }1 l6 O, K                 the non-unity tap is on
5 M! J) o! ]( b& O' Q- z/ cColumns  6- 9   Z bus number (I) *
                 For transformers and phase shifters, the side of the model
                 the device impedance is on.
Columns 11-12   Load flow area (I)
4 E- n$ _1 ~$ u8 MColumns 13-14   Loss zone (I)
/ V7 Z. O1 @( x$ t8 aColumn  17      Circuit (I) * (Use 1 for single lines)
( r7 T7 K% F  c9 |: t% A# d7 E( nColumn  19      Type (I) *
, h& i. g1 D& `& N. e3 T# w8 x. t, O                 0 - Transmission line
9 k3 i; W% p+ G6 V0 P! {  c                 1 - Fixed tap
. _  d# D7 P: i0 r  |5 U: x                 2 - Variable tap for voltage control (TCUL, LTC)
0 O+ L6 Y) y8 D6 W                 3 - Variable tap (turns ratio) for MVAR control
                 4 - Variable phase angle for MW control (phase shifter)
7 A: S& x7 d% W3 i( Y4 g! @+ D9 fColumns 20-29   Branch resistance R, per unit (F) *
Columns 30-40   Branch reactance X, per unit (F) * No zero impedance lines
' Q6 p. l9 H) x: ]/ W- x) ~Columns 41-50   Line charging B, per unit (F) * (total line charging, +B)
Columns 51-55   Line MVA rating No 1 (I) Left justify!
8 b. M) e' M$ b3 s# d& z9 PColumns 57-61   Line MVA rating No 2 (I) Left justify!
. \7 }* u+ C+ c' G2 k, wColumns 63-67   Line MVA rating No 3 (I) Left justify!
' o2 D: b- Q6 p/ d2 |/ h5 [4 n2 z1 eColumns 69-72   Control bus number
- x( e/ W1 y9 G! k- @Column  74      Side (I)
! H! n! K5 Y! a' b4 M- d                 0 - Controlled bus is one of the terminals
                 1 - Controlled bus is near the tap side
# ~! Z/ d3 d; b5 l' Y; @3 _) Y                 2 - Controlled bus is near the impedance side (Z bus)
; X1 B4 O6 ]6 F. {0 d6 I& Y; C$ UColumns 77-82   Transformer final turns ratio (F)
) o$ F% i9 u7 J; ]  H8 ZColumns 84-90   Transformer (phase shifter) final angle (F)
Columns 91-97   Minimum tap or phase shift (F)
Columns 98-104  Maximum tap or phase shift (F)
! ?- t7 U. h9 kColumns 106-111 Step size (F)
& v6 d2 {* ~. X5 z0 d9 P+ O5 UColumns 113-119 Minimum voltage, MVAR or MW limit (F)
2 I$ O+ g8 d  W6 {4 o7 iColumns 120-126 Maximum voltage, MVAR or MW limit (F)
1 V, \+ a* V. i2 _# U  uSection end card:
-----------------
9 j3 K/ B. Q( J# S4 IColumns  1- 4   -999
Loss Zone Data
==============
Section start card
------------------
$ z; t" e4 N8 ?- K! YColumns  1-16   LOSS ZONES FOLLOWS (not clear that any more than LOSS
                is significant)
; K1 {. s2 l# R4 e. eColumns 40?- ?  NNNNN ITEMS (column not clear, I would not count on this)
Loss Zone Cards:
" ?: k! O% b+ c/ p9 h+ Q9 D----------------
Columns  1- 3   Loss zone number  (I)
Columns  5-16   Loss zone name (A)
Section end card:
-----------------
1 V& R1 f+ M4 z  V2 Z% [Columns  1- 3   -99
Interchange Data *
==================
Section start card
------------------
Columns  1-16   INTERCHANGE DATA FOLLOWS (not clear that any more than
- f! s# t8 y  T1 m( @$ N                first word is significant).
Columns 40?- ?  NNNNN ITEMS (column not clear, I would not count on this)
Interchange Data Cards *:
3 @* @, A9 Z. a-------------------------
: p/ q4 [4 s( \/ N% @" UColumns  1- 2   Area number (I) no zeros! *
2 l  o: U2 I& [) i7 v! a. F+ ?* xColumns  4- 7   Interchange slack bus number (I) *
# u3 ~9 R  G1 b  @4 z( HColumns  9-20   Alternate swing bus name (A)
Columns 21-28   Area interchange export, MW (F) (+ = out) *
Columns 30-35   Area interchange tolerance, MW (F) *
Columns 38-43   Area code (abbreviated name) (A) *
Columns 46-75   Area name (A)
Section end card:
* l0 }( C& k! Z0 I# Z-----------------
5 q$ A* T/ k! \7 |Columns  1- 2   -9
Tie Line Data
6 N) @- h  q1 p=============
: h0 R& Y% F3 k2 T5 ASection start card
------------------
Columns  1-16   TIE LINES FOLLOW (not clear that any more than TIE
! b3 n- ?2 [0 m- g* a+ V/ u, N  R0 k                is significant)
Columns 40?- ?  NNNNN ITEMS (column not clear, I would not count on this)
Tie Line Cards:
---------------
Columns  1- 4   Metered bus number (I)
8 f8 r! z- G+ m' y' r' [Columns  7-8    Metered area number (I)
9 @2 I9 ]) Y' ]/ {1 E: `Columns  11-14  Non-metered bus number (I)
% A# }; G  y; g' p% q9 W. U# M) JColumns  17-18  Non-metered area number (I)
( J) y/ }: m& |5 Z$ g3 ?/ P; q7 TColumn   21     Circuit number
Section end card:
-----------------
Columns  1- 3   -999
END OF DATA
% y; W: b& X( x! R: ]
1 B1 G4 P% @& b3 u( nPSAP File Format
May 20, 1993
The PECO PSAP File Format is fully described in the _PJM Power System
Analysis Package Use's Guide_, available from the Philadelphia
( w5 J; o) ~0 \: z  gElectric Company. The following is a rough description of the
most important parts of the format.
A PSAP data file is divided into sections by code cards. The code is
in the first three columns. There are something like 60 codes, of
which only four are described in this document.
The 1 code indicates that the next card is the case title. Only one
title is allowed per case.
! {/ t7 z+ k1 `9 [) ]; L3 |; N& CThe 4 card indicates that line data follows. The line data ends with
: ?& v$ e# B! ^a 9999 card.
- A+ l% F$ M' DThe 5 card indicates that bus data follows. The bus data ends with
a 9999 card.
The 15 card indicates that area interchange data follows. The data ends with
( t1 I& e5 ?$ @8 ma 9999 card.
Line Data Card (Code 4 cards)
=============================
* Y, ^1 h; \! c4 q8 sCols    Data
* z* C" w+ q& ^  p& q1-4     From bus number
6       Change code (blank in 4 section)
7       'C' if second card present for same line. Used for transformers.
0 f# D$ y/ c1 l. y  h9-12    To bus number
5 x+ s6 @2 m3 ^" S0 b& D; c1 ]/ b14      Circuit number (blank in 4 section)
' A( x) o6 I% S: f/ m2 @9 h16      'T' or 'F' - Load flow area of bus at this end of line gets losses.
/ A. o$ b3 ^3 W- R% y18-23   Line resistance in percent of base. (NOT per unit.)
. t. i: Y& D( g" s        (percent = 100 x per unit) Two default decimal places.
  L  w$ u. v' s. }24-29   Line reactance, in percent. Two default decimal places.
30-35   Line charging MVAR (total). Three default decimal places.
7 `7 s9 O& D5 p9 l1 S# P" @9 k! C36-40   Transformer tap (per unit turns ratio). Three default decimal
        places, 1000 = 1.000.
, M2 N; |, H% C+ o41-45   Min tap, for OLTC. Three default decimal places.
# p3 F4 L, P* d1 A0 W46-50   Max tap, for OLTC. Three default decimal places.
5 A% F1 w. |. g/ }- q  Y% Q8 U- K51-55   Phase shift angle, for OL phase shifter. Two default decimal places.
56-60   Remote voltage control bus number. Negative if lower tap increases
        voltage of this bus.
* \2 o7 I8 j) }4 G1 R. t5 l1 j, ?" r61-64   Normal MVA rating
  v9 i$ O7 h. h  g65-68   Emergency MVA rating
69-72   MVA Base. Default value 100 MVA if blank.
5 J6 `) ~% K& T1 M2 V; \- H% NSecond Line Card (follows 'C' in first card)
% I# I' `6 o& a/ z( Q, g5 O============================================
1-17    Same as first card, except no 'C'. Can be left blank.
35-40   Desired MVAR flow or Min voltage setpoint for OLTC.
41-45   Min phase shifter degrees. Two default decimal places.
46-50   Max phase shifter degrees. Two default decimal places.
3 \$ q4 q' S. V9 ~51-55   Desired MW flow for phase shifter.
" \. z$ i! x* j57-60   Controlled line from bus.
62-65   Controlled line to bus.
67-70   Available taps (number of taps)
71-75   Maximum voltage setpoint. Three default decimal places.
+ h% L- g: J/ G3 l: ^Bus Cards (Code 5 cards)
========================
1-4     Bus number
6       Change code (blank in 5 section)
7 ]- p9 |* ~9 _7       Continue code (blank in 5 section)
8       Regulated bus code:
         Blank - load (PQ) bus
+ Z! c# A. g/ v" }         1     - gen (PV) bus
         2     - swing (V-Theta) bus
10-21   Name
23-26   Bus voltage (control setpoint or solved value).
/ o: y' `0 Y. W& K7 L% U        Three default decimal places.
27-30   Bus angle
9 A% D0 A. ^" `& A8 x31-35   Generation MW
4 f7 Q7 k$ r; |* ~0 n0 H+ h% D/ ~36-40   Generation MVAR (from solution)
2 J8 U8 w* m$ l7 p* e% ?- u8 u41-45   Generation MVAR low limit
46-50   Generation MVAR high limit
( s6 Z: t/ B2 r1 P8 S% f51-55   Bus at which generation controls voltage
& e& X+ n$ o( O% b- i* Z56-60   Load MW
4 p. n) p/ ~; j2 ~9 u61-65   Load MVAR
66-70   Shunt MVAR. Reactors are minus.
71-72   Load flow area. (Used for area interchange and losses).
: i# N+ F3 z: O9 g4 FArea Interchange Cards (Code 15 cards)
======================================
/ F: C* K5 Y" T$ E  N+ Y3-4     Load flow area number
5-8     Swing bus for area interchange. Adjusts generation at this bus
9 T4 M1 N5 S% {4 b& y/ [        to meet area interchange requirement.
1 _) [& g4 Y+ j0 k8 C$ ^" f) q9-14    Area exports, MW. (+ = out of area)
15-19   Area Interchange tolerance, MW
0 [8 z8 A- o/ ]( H# m# C7 H3 r20-55   Area name
1 L- G/ e' @9 f56-60   Area load (usually left blank)
; z) Q) R6 R- Z/ X7 H61-65   Area losses (usually left blank)
8 ]5 ^- F% u# u* R
1 s' T: H( \6 n: h! t+ y/ p. |2 A

Description of the PTI Load Flow Data Format
1 P2 B8 }5 h1 b0 `+ K6 v: e+ H============================================
8 F0 x) O9 Q  _. N& ^Note that PTI reserves the right to change the format at any time.
For use with the IEEE 300 bus test case in PTI format.
7 q  K- Z; |! `$ }Case Identification Data
& V1 S7 a* c/ p/ k, I6 Y========================
First record: IC,SBASE
$ j. y/ b: V% D) E; L' Z0 V IC - 0 for base case, 1 for change data to be added
8 {- o& X7 P+ h" @4 E" c SBASE - System MVA base
Records 2 and 3 - two lines of heading, up to 60 characters per line
Bus Data
/ D; _, D3 [1 {' v========
Bus data records, terminated by a record with a bus number of zero.
) l. T) H' `" Q! g; ]0 p- r- A! X& SI,IDE,PL,QL,GL,BL,IA,VM,VA,'NAME',BASKL,ZONE
& b& f% O" l# R  O: J4 S/ r I - Bus number (1 to 29997)
, D3 D4 q2 N8 \2 V- y* z IDE - Bus type
        1 - Load bus (no generation)
) |( B& B8 t2 T7 I& x; `        2 - Generator or plant bus
% U% y5 Y% ]5 T+ L3 O8 Y! e        3 - Swing bus
" V1 Y8 u, C% [, o- l; p5 Q! ^7 p: }        4 - Islolated bus
( S  S+ e' C" j* J" Y PL - Load MW
QL - Load MVAR
2 _3 f7 S; o& x" k! S GL - Shunt conductance, MW at 1.0 per unit voltage
* A/ D' H  U  x BL - Shunt susceptance, MVAR at 1.0 per unit voltage. (- = reactor)
# e: _8 J. [. x0 B% m IA - Area number, 1-100
VM - Voltage magnitude, per unit
  n0 `3 B! [5 M/ ^7 _" v7 N VA - Voltage angle, degrees
NAME - Bus name, 8 characters, must be enclosed in quotes
8 g( E8 p0 G/ l- z: K1 d' l* t BASKV - Base voltage, KV
ZONE - Loss zone, 1-999
" c  j; z+ q" G/ B( U+ PGenerator Data
0 H% s, ~3 E. z  V+ t==============
Generator data records, terminated by a generator with an index of zero.
I,ID,PG,QG,QT,QB,VS,IREG,MBASE,ZR,ZX,RT,XT,GTAP,STAT,RMPCT,PT,PB
I - Bus number
- [; \/ B7 C' @* B, b5 \; f' oID - Machine identifier (0-9, A-Z)
PG - MW output
, A" H" u5 ]" c6 _QG - MVAR output
1 t, Z) S' Z& M6 ?: N+ q+ c2 nQT - Max MVAR
* i; a/ P( P$ |7 a( Y' X+ oQB - Min MVAR
4 R4 c# E/ k7 P4 a) c" K+ pVS - Voltage setpoint
IREG - Remote controlled bus index (must be type 1), zero to control own
voltage, and must be zero for gen at swing bus
" V) `' m( I& S4 S/ G" x8 C0 ^1 f0 q! LMBASE - Total MVA base of this machine (or machines), defaults to system
/ I$ X& L; s; m+ i6 d MVA base.
ZR,ZX - Machine impedance, pu on MBASE
) [) z" B! A5 XRT,XT - Step up transformer impedance, p.u. on MBASE
GTAP - Step up transformer off nominal turns ratio
+ ]' J& `. E7 d1 t* y; }' x/ b" @STAT - Machine status, 1 in service, 0 out of service
0 N2 v0 h' k6 j. WRMPCT - Percent of total VARS required to hold voltage at bus IREG
2 e9 B' A5 e' `" z9 j to come from bus I - for remote buses controlled by several generators
PT - Max MW
: B+ F7 `( ?" d/ i8 G6 _4 j5 RPB - Min MW
Branch Data
===========
Branch records, ending with a record with from bus of zero
8 S0 u. t5 ]+ Y! v; DI,J,CKT,R,X,B,RATEA,RATEB,RATEC,RATIO,ANGLE,GI,BI,GJ,BJ,ST
I - From bus number
& z0 K) r+ {% TJ - To bus number
! h2 H" B2 ]( d+ K/ F* c" NCKT - Circuit identifier (two character) not clear if integer or alpha
1 K7 U+ i1 X1 W3 m9 R7 ]R - Resistance, per unit
9 ?, v: _, a! G. h( S- Z9 fX - Reactance, per unit
9 f% p* G' ^/ ?- _B - Total line charging, per unit
RATEA - MVA rating A
RATEB, RATEC - Higher MVA ratings
RATIO - Transformer off nominal turns ratio
ANGLE - Transformer phase shift angle
, ?9 k/ c) j* \GI,BI - Line shunt complex admittance for shunt at from end (I) bus, pu.
0 ~1 _) D) N- {: |. q! E0 cGJ,BJ - Line shunt complex admittance for shunt at to end (J) bus, pu.
ST - Initial branch status, 1 - in service, 0 - out of service
& H8 W( o* U( K, rTransformer Adjustment Data
- B" O; p' ]8 O( V9 w===========================
Ends with record with from bus of zero
I,J,CKT,ICONT,RMA,RMI,VMA,VMI,STEP,TABLE
# w4 d; M# q: S7 B+ s$ `: O- {I - From bus number
J - To bus number
5 G$ R4 {. M" F) F* FCKT - Circuit number
ICONT - Number of bus to control. If different from I or J, sign of ICONT
determines control. Positive sign, close to impedance (untapped) bus
of transformer. Negative sign, opposite.
5 n% U1 X) H) r- D" I* g. jRMA - Upper limit of turns ratio or phase shift
RMI - Lower limit of turns ratio or phase shift
( v5 N( t, F  P, R1 kVMA - Upper limit of controlled volts, MW or MVAR
! l  L8 W) `% x! N/ B. yVMI - Lower limit of controlled volts, MW or MVAR
STEP - Turns ratio step increment
TABLE - Zero, or number of a transformer impedance correction table 1-5
Area Interchange Data
9 d4 N4 b- C! h6 n8 g=====================
Ends with I of zero
0 A  X7 m* u0 w$ s3 cI,ISW,PDES,PTOL,'ARNAM'
) ?: e& `! ?$ J' X% pI - Area number (1-100)
ISW - Area interchange slack bus number
% A9 h# ^# m* }9 v5 b1 b0 s3 iPDES - Desired net interchange, MW + = out.
. v. u, F+ x2 j7 ]3 _$ u$ gPTOL - Area interchange tolerance, MW
8 }4 H& E) c. A  n3 {" B* i& l( pARNAM - Area name, 8 characters, enclosed in single quotes.
' Y( k5 K" ^- D; X/ o; GDC Line Data
============
, r% j9 t. O- J: W8 J; O3 W" L7 kEnds with I of zero
, _$ E% v- j' n9 B8 `4 N3 C2 \Each DC line has three consecutive records
I,MDC,RDC,SETVL,VSCHD,VCMOD,RCOMP,DELTI,METER
IPR,NBR,ALFMAX,ALFMN,RCR,XCR,EBASR,TRR,TAPR,TPMXR,TPMNR,TSTPR
IPI,NBI,GAMMX,GAMMN,RCI,XCI,EBASI,TRI,TAPI,TPMXI,TPMNI,TSTPI
9 z+ I1 d7 T8 n  D0 q3 d0 kI - DC Line number
8 c% {0 Y2 Q3 |( o1 _- _- X* L. e3 DMDC - Control mode 0 - blocked 1 - power 2 - current
RDC - Resistance, ohms
, u3 U2 L8 y' aSETVL - Current or power demand
VSCHD - Scheduled compunded DC voltage, KV
# _9 a/ v- s! M. x; X" hVCMOD - Mode switch DC voltage, KV, switch to current control mode below this
3 e; H: d/ j5 |) @4 t2 yRCOMP - Compounding resistance, ohms
* {( C6 ?! o$ ]) M3 {- N" LDELTI - Current margin, per unit of desired current
" ]8 W* _9 c- l" z! XMETER - Metered end code, R - rectifier I - Inverter
IPR - Rectifier converter bus number
NBR - Number of birdges is series rectifier
ALFMAX - Maximum rectifier firing angle, degrees
ALFMN - Minimum rectifier firing angle, degrees
RCR - Rectifier commutating transformer resistance, per bridge, ohms
, M6 g* F  e- Z2 fXCR - Rectifier commutating transformer reactance, per bridge, ohms
EBASR - Rectifier primary base AC volts, KV
* ^, J$ {+ M& XTRR - Rectifier transformer ratio
, ?2 [& q5 a1 m  s5 ]TAPR - Rectifier tap setting
& j: w4 [2 z7 x1 eTPMXR - Maximum rectifier tap setting
TPMNR - Minimum rectifier tap setting
TSTPR - Rectifier tap step
3 W2 n$ Z0 |' JThird record contains inverter quantities corresponding to rectifier
quantities above.
+ D- U( G7 ~6 }+ t* U7 QSwitch Shunt Data
1 z% F  W& P. S: [# e=================
: x0 I1 u4 X4 v: ^! V. M' |  y1 ^Ends with I = 0.
% [. L% P# t* L% M; k, ^I,MODSW,VSWHI,VSWLO,SWREM,BINIT,N1,B1,N2,B2...N8,B8
I - Bus number
4 _/ F5 |% R: FMODSW - Mode 0 - fixed 1 - discrete 2 - continuous
( u! @5 b+ |( i2 |0 l, d2 `VSWHI - Desired voltage upper limit, per unit
) I; M% [2 k9 X8 i, a' i$ [& @VSWLO - Desired voltage lower limit, per unit
SWREM - Number of remote bus to control. 0 to control own bus.
VDES - Desired voltage setpoint, per unit
$ y* z4 n; f9 R, \& T5 a+ W7 KBINIT - Initial switched shunt admittance, MVAR at 1.0 per unit volts
N1 - Number of steps for block 1, first 0 is end of blocks
# q7 f4 B+ N( X1 b8 y0 ZB1 - Admittance increment of block 1 in MVAR at 1.0 per unit volts.
N2, B2, etc, as N1, B1

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