maxPowerFlow ⚡

Intro

It is Python script for calculating Maximum Power Flow (MPF) in flowgate of power system. MPF determine according with standart of Russian System Operator of the United Power System ("SO UPS", JSC)

Technical requirments

• Python (32-bit)
• pywin32
• RastrWin3 (x86) v 2.0.0.5709 or better

Calculating requirments

• Power system model .rg2 file
• Flowgate .json file
• Trajectory .csv file
• Faults .json file

Manual

1. Make yours .rg2 file by RastrWin3 and put it in /samples folder
2. Run "main" file
3. Input path to .json and .csv files forming flowgate and trajectory
4. Input value of active power fluctuation

Example of script running:

>> Select path to flowgate .json: C:\...\samples\flowgate.json
>> Select path to faults .json: C:\...\samples\faults.json
>> Select path to trajectory .csv: C:\...\samples\vector.csv
>> Input positive power fluctuations: 30

Example of script output:

>> MPF in normal regime (0.8*Pmax): 2216.57
>> MPF by the acceptable voltage level in the pre-emergency regime (1,15*Ucr): 2757.89
>> MPF in the post-emergency regime after fault (0.92*Pmax): 2132.61
>> MPF by the acceptable voltage level in the post-emergency regime after fault (1.1*Ucr): 2339.69
>> MPF by acceptable current in normal regime (Iacc): 1787.14
>> MPF by acceptable current in the post-emergency regime after fault (Iem_acc): 1479.26

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Explanation

About .rg2 files

To find out how to make a .rg file use RastrWin3 -> Помощь -> Справка -> User Manual EN

About flowgate .json

Use flowgate .json file such a this structure:

    {
	    "line_1": {
		    "ip": 17, 
		    "iq": 16, 
		    "np": 0
	    }, 
	    "line_2": {
		    "ip": 6, 
		    "iq": 11, 
		    "np": 0
	    }, 
	    "line_3": {
		    "ip": 4, 
		    "iq": 14, 
		    "np": 0
	    }
    }

Parameter	Meaning	Values
ip	Node number according to the start of the line in .rg2	int
iq	Node number according to the end of the line in .rg2	int
np	Parallel line number in .rg2	usually 1 or 2

About faults .json

Use faults .json file such a this structure:

    {
	    "outage_of_6_11": {
		    "ip": 6, 
		    "iq": 11, 
		    "np": 0,
		    "sta": 1
	    }, 
	    "outage_of_4_14": {
		    "ip": 4, 
		    "iq": 14,
		    "np": 0,
		    "sta": 1
	    }
    }

Parameter	Meaning	Values
ip	Node number according to the start of the line in .rg2	int
iq	Node number according to the end of the line in .rg2	int
np	Parallel line number in .rg2	usually 1 or 2
sta	Line status	0 - on, 1 - off

About trajectory .csv

Use trajectory .csv file such a this structure:

    variable,node,value,tg
    pn,23,-3.0,1
    pn,24,-3.0,1
    ...
    pg,6,-4.0,0
    pg,7,-4.0,0
    pg,8,-2.0,0
    pg,9,-1.0,0

Parameter	Meaning	Values
variable	Type of node in .rg2	pn - load, pg - generator
node	Node number in .rg2	int
value	Changing the power in the node	float
tg	Power factor in node	float