File IO

File IO

General Data Formats

parse_file(file; import_all)

Parses a Matpower .m file or PTI (PSS(R)E-v33) .raw file into a PowerModels data structure. All fields from PTI files will be imported if import_all is true (Default: false).

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Parses the iostream from a file

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Parses json from iostream or string

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Matpower Data Files

The following method is the main exported methods for parsing Matpower data files:

Parses the matpwer data from either a filename or an IO object

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We also provide the following (internal) helper methods:

adds dcline costs, if gen costs exist

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Export cost data

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Export fields of a component type

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Export power network data in the matpower format

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Export power network data in the matpower format

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Get a default value for dict entry

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Converts a Matpower dict into a PowerModels dict

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merges bus name data into buses, if names exist

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merges generator cost functions into generator data, if costs exist

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merges Matpower tables based on the table extension syntax

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sets all branch transformer taps to 1.0, to simplify branch models

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adds pmin and pmax values at to and from buses

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Parses the matpwer data from either a filename or an IO object

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split_loads_shunts(data)

Seperates Loads and Shunts in data under separate "load" and "shunt" keys in the PowerModels data format. Includes references to originating bus via "loadbus" and "shuntbus" keys, respectively.

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PTI Data Files (PSS/E)

Note: This feature supports the parsing and conversion of PTI files into a PowerModels format for the following power network components: buses, loads, shunts (fixed and approximation of switched), branches, two-winding and three-winding transformers (incl. magnetizing admittance), generators, two-terminal dc lines, and voltage source converter HVDC lines.

The following method is the main exported method for parsing PSS(R)E v33 specified PTI data files:

PowerModels.parse_ptiFunction.
parse_pti(filename::String)

Open PTI raw file given by filename, returning a Dict of the data parsed into the proper types.

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parse_pti(io::IO)

Reads PTI data in io::IO, returning a Dict of the data parsed into the proper types.

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parse_psse(pti_data)

Converts PSS(R)E-style data parsed from a PTI raw file, passed by pti_data into a format suitable for use internally in PowerModels. Imports all remaining data from the PTI file if import_all is true (Default: false).

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Parses directly from file

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Parses directly from iostream

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The following internal helper methods are also provided:

create_starbus(pm_data, transformer)

Creates a starbus from a given three-winding transformer. "sourceid" is given by `["busi", "name", "I", "J", "K", "CKT"]` where "bus_i" and "name" are the modified names for the starbus, and "I", "J", "K" and "CKT" come from the originating transformer, in the PSS(R)E transformer specification.

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find_max_bus_id(pm_data)

Returns the maximum bus id in pm_data

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get_bus_value(bus_i, field, pm_data)

Returns the value of field of bus_i from the PowerModels data. Requires "bus" Dict to already be populated.

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Imports remaining keys from data_in into data_out, excluding keys in exclude

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init_bus!(bus, id)

Initializes a bus of id id with default values given in the PSS(R)E specification.

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parse_psse(pti_data)

Converts PSS(R)E-style data parsed from a PTI raw file, passed by pti_data into a format suitable for use internally in PowerModels. Imports all remaining data from the PTI file if import_all is true (Default: false).

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Parses directly from iostream

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Parses directly from file

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psse2pm_branch!(pm_data, pti_data)

Parses PSS(R)E-style Branch data into a PowerModels-style Dict. "source_id" is given by ["I", "J", "CKT"] in PSS(R)E Branch specification.

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psse2pm_bus!(pm_data, pti_data)

Parses PSS(R)E-style Bus data into a PowerModels-style Dict. "source_id" is given by ["I", "NAME"] in PSS(R)E Bus specification.

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psse2pm_dcline!(pm_data, pti_data)

Parses PSS(R)E-style Two-Terminal and VSC DC Lines data into a PowerModels compatible Dict structure by first converting them to a simple DC Line Model. For Two-Terminal DC lines, "sourceid" is given by ["IPR", "IPI", "NAME"] in the PSS(R)E Two-Terminal DC specification. For Voltage Source Converters, "sourceid" is given by ["IBUS1", "IBUS2", "NAME"], where "IBUS1" is "IBUS" of the first converter bus, and "IBUS2" is the "IBUS" of the second converter bus, in the PSS(R)E Voltage Source Converter specification.

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psse2pm_generator!(pm_data, pti_data)

Parses PSS(R)E-style Generator data in a PowerModels-style Dict. "source_id" is given by ["I", "ID"] in PSS(R)E Generator specification.

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psse2pm_load!(pm_data, pti_data)

Parses PSS(R)E-style Load data into a PowerModels-style Dict. "source_id" is given by ["I", "ID"] in the PSS(R)E Load specification.

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psse2pm_shunt!(pm_data, pti_data)

Parses PSS(R)E-style Fixed and Switched Shunt data into a PowerModels-style Dict. "source_id" is given by ["I", "ID"] for Fixed Shunts, and ["I", "SWREM"] for Switched Shunts, as given by the PSS(R)E Fixed and Switched Shunts specifications.

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psse2pm_transformer!(pm_data, pti_data)

Parses PSS(R)E-style Transformer data into a PowerModels-style Dict. "source_id" is given by ["I", "J", "K", "CKT", "winding"], where "winding" is 0 if transformer is two-winding, and 1, 2, or 3 for three-winding, and the remaining keys are defined in the PSS(R)E Transformer specification.

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add_section_data!(pti_data, section_data, section)

Internal function. Adds section_data::Dict, which contains all parsed elements of a PTI file section given by section, into the parent pti_data::Dict

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_get_component_property(section, ret, search_field, search_value)

Internal function. Finds a component in section where search_field == search_value and returns ret from that component.

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_get_line_elements(line)

Internal function. Uses regular expressions to extract all separate data elements from a line of a PTI file and populate them into an Array{String}. Comments, typically indicated at the end of a line with a '/' character, are also extracted separately, and Array{Array{String}, String} is returned.

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_get_pti_default(section, field, data, component)

Internal function. Returns a default value in section for field in component from data.

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_get_pti_dtypes(field_name)

Internal function. Returns array of data types for PTI file section given by field_name, as enumerated by PSS/E Program Operation Manual.

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_get_pti_sections()

Internal function. Returns Array of the names of the sections, in the order that they appear in a PTI file, v33

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_parse_line_element!(data, elements, section)

Internal function. Parses a single "line" of data elements from a PTI file, as given by elements which is an array of the line, typically split at ,. Elements are parsed into data types given by section and saved into data::Dict.

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_parse_pti_data(data_string, sections)

Internal function. Parse a PTI raw file into a Dict, given the data_string of the file and a list of the sections in the PTI file (typically given by default by get_pti_sections().

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_populate_defaults!(pti_data)

Internal function. Populates empty fields with PSS(R)E PTI v33 default values

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parse_pti(io::IO)

Reads PTI data in io::IO, returning a Dict of the data parsed into the proper types.

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parse_pti(filename::String)

Open PTI raw file given by filename, returning a Dict of the data parsed into the proper types.

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