Unscheduled interchange (UI) price based secondary frequency control of an interconnected hybrid power system

Author

Konar, G. ; Chakraborty, N. ; Mandal, K.K.

Author_Institution

Dept. of Power Eng., Jadavpur Univ., Kolkata, India

fYear

2014

fDate

11-13 Dec. 2014

Firstpage

1

Lastpage

6

Abstract

The availability based tariff (ABT) structure introduced by Government of India established inter region grid discipline through Central Electricity Regulatory Commission Regulation 2009. Using this regulation the over /under injection by the generators during off-peak/peak hours are discouraged and the frequency is maintained within a range amongst five regional grids of India. This work follows the rules of frequency regulation based on unscheduled interchange (UI) charges for power flow between three interconnected area having different combinations of thermal, hydro and diesel power generators. This UI based secondary frequency control scheme is simulated in MATLAB/Simulink. Though the system response is slow, but it finally establish the frequency within the specified limits (50.3 Hz - 49.2 Hz) and economic power generation is maintained.

Keywords

frequency control; hybrid power systems; load flow; power generation control; power generation economics; power system interconnection; pricing; ABT structure; Central Electricity Regulatory Commission Regulation 2009; Government of India; MATLAB-Simulink; UI price; availability based tariff structure; diesel power generators; economic power generation; frequency 50.3 Hz to 49.2 Hz; hydropower generators; inter region grid discipline; interconnected hybrid power system; over injection; power flow; secondary frequency control scheme; thermal power generators; under injection; unscheduled interchange price; Availability; Electricity; Frequency control; Generators; Power generation; Power systems; Time-frequency analysis; Availability Based Tariff (ABT); CERC; Unscheduled Interchange (UI) charge; interconnected hybrid power system; marginal cost;

fLanguage

English

Publisher

ieee

Conference_Titel

India Conference (INDICON), 2014 Annual IEEE

Conference_Location

Pune

Print_ISBN

978-1-4799-5362-2

Type

conf

DOI

10.1109/INDICON.2014.7030553

Filename

7030553