DynamicExp#

( General )

EPRI’s OpenDSS Documentation for this component: https://opendss.epri.com/DynamicExp.html

#	Name	Type	Default	Description
1	`NVariables`	integer	0	(Int) Number of state variables to be considered in the differential equation.
2	`VarNames`	array of strings		([String]) Array of strings with the names of the state variables.
3	`Var`	string		(String) Activates the state variable using the given name.
4	`VarIdx`	integer		(Int) read-only, returns the index of the active state variable.
5	`Expression`	string		It is the differential expression using OpenDSS RPN syntax. The expression must be contained within brackets in case of having multiple equations, for example: expression=“[w dt = 1 M / (P_m Dw - P_e -) ]”
6	`Domain`	string (from enum. Domain)	Time	It is the domain for which the equation is defined, it can be one of [time*, dq]. By deafult, dynamic epxressions are defined in the time domain.
7	`Like`	string (DynamicExp name) deprecated		Make like another object, e.g.: New Capacitor.C2 like=c1 …

Enumerations#

DynamicExp: Domain#

Value
`Time`
`dq`

Sample links#

These are the 3 sample files with occurrences of this DSS object.

# of occurrences	Link
2	`IBRDynamics_Cases/GFL_IEEE123/Run_IEEE123Bus_GFLDaily_DynExp.DSS`
1	`Examples/Dynamic_Expressions/Dynamic_KundurDynExp.dss`
1	`Examples/Dynamic_Expressions/Dynamic_KundurDynExp-steady-state-only.dss`

Links are provided to the dss-extensions/electricdss-src repository since there are some edits and fixes. Otherwise, these files should be available on the official OpenDSS SVN or in the OpenDSS application folder if your have a local installation.