: Public Class
Created: 05/07/2009 03:06:53 PM
Modified: 06/24/2012 03:35:05 PM
Project:
Advanced:
IEEE steam turbine/governor model  (with optional deadband and nonlinear valve gain added).<br /></p><p><br /></p><p>Ref<font color="#0f0f0f">erence: IEEE Transactions on Power Apparatus and Systems</font><br /></p><p><font color="#0f0f0f">November/December 1973, Volume PAS-92, Number 6</font><br /></p><p><font color="#0f0f0f"><i><u>Dynamic Models for Steam and Hydro Turbines in Power System Studies</u></i>, Page 1904</font><br /></p><p><br /></p><p><b>Parameter Notes:</b><br /></p><p><ol><li>Per unit parameters are on base of <b>MWbase</b>, which is normally the MW capability of the turbine.</li><br /></p><p><li><b>T3</b> must be greater than zero.  All other time constants may be zero.</li><br /></p><p><li>For a tandem-compound turbine the parameters <b>K2</b>, <b>K4</b>, <b>K6</b>, and <b>K8</b> are ignored. For a cross-compound turbine, two generators are connected to this turbine-governor model.</li><br /></p><p><li>Each generator must be represented in the load flow by data on its own MVA base.  The values of <b>K1</b>, <b>K3</b>, <b>K5</b>, <b>K7</b> must be specified to describe the proportionate development of power on the first turbine shaft.  <b>K2</b>, <b>K4</b>, <b>K6</b>, <b>K8</b> must describe the second turbine shaft. Normally <b>K1</b> + <b>K3</b> + <b>K5</b> + <b>K7</b> = 1.0 and <b>K2</b> + <b>K4</b> + <b>K6</b> + <b>K8</b> = 1.0  (if second generator is present).</li><br /></p><p><li>The division of power between the two shafts is in proportion to the values of MVA bases of the two generators.  The initial condition load flow should, therefore, have the two generators loaded to the same fraction of each one’s MVA base.</li><br /></p><p><li><font color="#0f0f0f">The intentional input speed deadband follows the relationship shown  in the GovSteamIEEE1InputSpeedDeadband diagram.</font></li><br /></p><p><li><font color="#0f0f0f">The unintentional deadband can be used to represent backlash hysteresis in the control components by the relationship shown in the GovSteamIEEE1BacklashHysteresis diagram.</font></li><br /></p><p><li>The nonlinear gain between gate position and power may be input with up to 6 points.  The (0.,0.) and (1.,1.) points are assumed and need not be input.  The output is not allowed to go beyond 0. and 1. However, if <b>Pmax</b> > 1., the input and output are scaled by <b>Pmax</b>.</li><br /></p><p><li>If <b>GV1</b> is input as a negative number, the default full-arc steam valve curve shown in the “typical data” will be used.  If input is omitted or if all zero values are input, a straight line is used.</li><br /></p><p><li><b>Pref</b> has units of p.u. power.</li><br /></p><p></ol><br /></p>
Attribute
Public <a href="../../../EA1/EA61.htm">Frequency</a>
  db1

Details:
GUIDBasedOn={728C92DB-A6A4-4b53-BD90-41DA56B7E3B2}
Notes: Intentional deadband width (db1).
Public <a href="../../../EA1/EA55.htm">ActivePower</a>
  db2

Details:
GUIDBasedOn={5ACC9A8D-5F75-4866-9480-09496B401AB9}
Notes: Unintentional deadband (db2).
Public <a href="../../../EA1/EA61.htm">Frequency</a>
  eps

Details:
GUIDBasedOn={5E7A0800-00DF-4aee-9C98-D8902F80FA33}
Notes: Intentional db hysteresis (eps).
Public <a href="../../../EA1/EA66.htm">PU</a>
  gv1

Details:
GUIDBasedOn={F9839D3E-0CE3-49a9-B2B9-C4576D4A15FD}
Notes: Nonlinear gain valve position point 1 (GV1).
Public <a href="../../../EA1/EA66.htm">PU</a>
  gv2

Details:
GUIDBasedOn={BA808B25-07AC-4610-8228-2DFB7833E5E0}
Notes: Nonlinear gain valve position point 2 (GV2).
Public <a href="../../../EA1/EA66.htm">PU</a>
  gv3

Details:
GUIDBasedOn={F5F0BFFC-F80C-4f51-98D3-B9C4833FEA7A}
Notes: Nonlinear gain valve position point 3 (GV3).
Public <a href="../../../EA1/EA66.htm">PU</a>
  gv4

Details:
GUIDBasedOn={4A7D3167-F8D1-4ac1-A593-C89EEEEF762E}
Notes: Nonlinear gain valve position point 4 (GV4).
Public <a href="../../../EA1/EA66.htm">PU</a>
  gv5

Details:
GUIDBasedOn={AAB2B56B-F8DB-461c-9911-1E9BF108CE7A}
Notes: Nonlinear gain valve position point 5; (<i>GV5</i>).
Public <a href="../../../EA1/EA66.htm">PU</a>
  gv6

Details:
GUIDBasedOn={21ADD5E1-5627-455f-B808-3556670B117C}
Notes: Nonlinear gain valve position point 6 (GV6).
Public <a href="../../../EA1/EA66.htm">PU</a>
  k

Details:
GUIDBasedOn={3B0BA29C-E505-4c31-AC6D-22153D6A2344}
Notes: Governor gain (reciprocal of droop) (K) (> 0.).
Public <a href="../../../EA1/EA52.htm">Float</a>
  k1

Details:
GUIDBasedOn={A060B705-473C-4759-8722-F969343AE905}
Notes: Fraction of HP shaft power after first boiler pass (K1).
Public <a href="../../../EA1/EA52.htm">Float</a>
  k2

Details:
GUIDBasedOn={B0B3C600-89FE-49dd-8BE5-0329DB19BED2}
Notes: Fraction of LP shaft power after first boiler pass (K2).
Public <a href="../../../EA1/EA52.htm">Float</a>
  k3

Details:
GUIDBasedOn={C1E03DCC-834D-48ff-BF02-C4A6BD824048}
Notes: Fraction of HP shaft power after second boiler pass (K3).
Public <a href="../../../EA1/EA52.htm">Float</a>
  k4

Details:
GUIDBasedOn={A8101D28-E0EF-46ae-98F5-8971B0A67A9F}
Notes: Fraction of LP shaft power after second boiler pass (K4).
Public <a href="../../../EA1/EA52.htm">Float</a>
  k5

Details:
GUIDBasedOn={9C327305-9C97-4c50-8F82-4588422553FF}
Notes: Fraction of HP shaft power after third boiler pass (K5).
Public <a href="../../../EA1/EA52.htm">Float</a>
  k6

Details:
GUIDBasedOn={685AB351-306B-47f2-A371-2600CB4EB8EC}
Notes: Fraction of LP shaft power after third boiler pass (K6).
Public <a href="../../../EA1/EA52.htm">Float</a>
  k7

Details:
GUIDBasedOn={8CD0911F-2504-4fd2-8D74-ABC801E1D654}
Notes: Fraction of HP shaft power after fourth boiler pass (K7).
Public <a href="../../../EA1/EA52.htm">Float</a>
  k8

Details:
GUIDBasedOn={6B1B64DE-7290-41e6-9585-F82E0BF93C3E}
Notes: Fraction of LP shaft power after fourth boiler pass (K8).
Public <a href="../../../EA1/EA55.htm">ActivePower</a>
  mwbase

Details:
GUIDBasedOn={D7E35874-9E7E-401b-8C00-EFF8CE6D581B}
Notes: Base for power values (MWbase) (> 0.)<i>.</i>
Public <a href="../../../EA1/EA66.htm">PU</a>
  pgv1

Details:
GUIDBasedOn={DC0A0C4B-0C31-43dc-ABD9-C36192383D4E}
Notes: Nonlinear gain power value point 1 (Pgv1).
Public <a href="../../../EA1/EA66.htm">PU</a>
  pgv2

Details:
GUIDBasedOn={965D27F2-B267-469e-A28B-9B46C2ED1146}
Notes: Nonlinear gain power value point 2 (Pgv2).
Public <a href="../../../EA1/EA66.htm">PU</a>
  pgv3

Details:
GUIDBasedOn={A9E299FD-04F6-442b-8FC7-E1AE33D0197F}
Notes: Nonlinear gain power value point 3 (Pgv3).
Public <a href="../../../EA1/EA66.htm">PU</a>
  pgv4

Details:
GUIDBasedOn={3AAE78B1-FE38-4ed8-B00C-9DD8CED31A1B}
Notes: Nonlinear gain power value point 4 (Pgv4).
Public <a href="../../../EA1/EA66.htm">PU</a>
  pgv5

Details:
GUIDBasedOn={E05E2819-72FD-4e66-8DB7-99D0CD8F8C4C}
Notes: Nonlinear gain power value point 5 (Pgv5).
Public <a href="../../../EA1/EA66.htm">PU</a>
  pgv6

Details:
GUIDBasedOn={FC02864E-C8D4-4a91-A98A-29444448E7D9}
Notes: Nonlinear gain power value point 6 (Pgv6).
Public <a href="../../../EA1/EA66.htm">PU</a>
  pmax

Details:
GUIDBasedOn={C0A21ABD-B86F-4be6-843A-6418DBDFBA74}
Notes: Maximum valve opening (Pmax) (> Pmin).
Public <a href="../../../EA1/EA66.htm">PU</a>
  pmin

Details:
GUIDBasedOn={E07CF9E0-312E-4170-B843-E218030E028A}
Notes: Minimum valve opening (Pmin) (>= 0.).
Public <a href="../../../EA1/EA71.htm">Seconds</a>
  t1

Details:
GUIDBasedOn={A43E3910-A206-47ce-90EF-4EDDCEAD2B97}
Notes: Governor lag time constant (T1).
Public <a href="../../../EA1/EA71.htm">Seconds</a>
  t2

Details:
GUIDBasedOn={7B8DF74C-AF7D-4355-BC96-3E03C80DC2C2}
Notes: Governor lead time constant (T2).
Public <a href="../../../EA1/EA71.htm">Seconds</a>
  t3

Details:
GUIDBasedOn={528BF1FA-2DE1-49af-9EFE-992F44D064BA}
Notes: Valve positioner time constant (T3) (> 0.).
Public <a href="../../../EA1/EA71.htm">Seconds</a>
  t4

Details:
GUIDBasedOn={D42E87AF-7FB9-4f45-8951-C2672F43892A}
Notes: Inlet piping/steam bowl time constant (T4).
Public <a href="../../../EA1/EA71.htm">Seconds</a>
  t5

Details:
GUIDBasedOn={C87552A6-806A-4e71-8690-82F8580A2D8D}
Notes: Time constant of second boiler pass (T5).
Public <a href="../../../EA1/EA71.htm">Seconds</a>
  t6

Details:
GUIDBasedOn={B6FEADDA-2652-401b-BCAC-3EC97560751D}
Notes: Time constant of third boiler pass (T6).
Public <a href="../../../EA1/EA71.htm">Seconds</a>
  t7

Details:
GUIDBasedOn={034804D5-AB66-4855-9002-4CDF1ACC780C}
Notes: Time constant of fourth boiler pass (T7).
Public <a href="../../../EA1/EA52.htm">Float</a>
  uc

Details:
GUIDBasedOn={84320485-7039-4a2a-BCCC-AEC25896CF5B}
Notes: Maximum valve closing velocity (Uc) (< 0.). Unit = p.u./sec. 
Public <a href="../../../EA1/EA52.htm">Float</a>
  uo

Details:
GUIDBasedOn={9FE36435-360D-4cee-9774-BBBBAC457B3C}
Notes: Maximum valve opening velocity (Uo) (> 0.). Unit = p.u./sec.
Tag Value
GUIDBasedOn {0C56115D-6698-4d80-ACEC-59C9609E8EB6}
Details:
 
Object Type Connection Notes
TurbineGovernorDynamics Class Generalization