Frequency stability analysis in low frequency AC systems for renewables power transmission

J. Dong, A.B. Attya, O. Anaya-Lara

Research output: Contribution to conferencePaper

Abstract

The foreseen high penetration levels of wind energy will have serious implications on frequency stability, hence developed control methods of wind turbine and alternative technologies including energy storage should enable the provision of frequency support by wind power. Active research is ongoing to investigate the possibility of collecting and transmitting offshore wind power through low frequency alternating current systems (LFAC). This paper develops a novel method to enhance frequency support capability of generators connected to a LFAC system. The leveraged frequency regulation ability of the generators at LFAC system is emphasized. The voltage is proportional to the frequency of the LFAC system, so that the transformers can be protected when frequency drops. Then the generators at LFAC system acquire sufficient time for frequency regulation. In this paper, a hydro generator at LFAC system is regarded as an energy storage plant, which is connected to the LFAC system rather than normal frequency grid.

Conference

Conference6th IEEE International Conference on Clean Electrical Power
CountryItaly
CityGenoa
Period27/06/1729/06/17

Fingerprint

Frequency stability
Power transmission
Wind power
Energy storage
Wind turbines
Electric potential

Keywords

  • frequency regulation
  • low frequency AC systems
  • LFAC
  • hydropower
  • wind power

Cite this

Dong, J., Attya, A. B., & Anaya-Lara, O. (2017). Frequency stability analysis in low frequency AC systems for renewables power transmission. Paper presented at 6th IEEE International Conference on Clean Electrical Power, Genoa, Italy.
Dong, J. ; Attya, A.B. ; Anaya-Lara, O./ Frequency stability analysis in low frequency AC systems for renewables power transmission. Paper presented at 6th IEEE International Conference on Clean Electrical Power, Genoa, Italy.
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abstract = "The foreseen high penetration levels of wind energy will have serious implications on frequency stability, hence developed control methods of wind turbine and alternative technologies including energy storage should enable the provision of frequency support by wind power. Active research is ongoing to investigate the possibility of collecting and transmitting offshore wind power through low frequency alternating current systems (LFAC). This paper develops a novel method to enhance frequency support capability of generators connected to a LFAC system. The leveraged frequency regulation ability of the generators at LFAC system is emphasized. The voltage is proportional to the frequency of the LFAC system, so that the transformers can be protected when frequency drops. Then the generators at LFAC system acquire sufficient time for frequency regulation. In this paper, a hydro generator at LFAC system is regarded as an energy storage plant, which is connected to the LFAC system rather than normal frequency grid.",
keywords = "frequency regulation, low frequency AC systems, LFAC, hydropower, wind power",
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note = "6th IEEE International Conference on Clean Electrical Power ; Conference date: 27-06-2017 Through 29-06-2017",

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Dong, J, Attya, AB & Anaya-Lara, O 2017, 'Frequency stability analysis in low frequency AC systems for renewables power transmission' Paper presented at 6th IEEE International Conference on Clean Electrical Power, Genoa, Italy, 27/06/17 - 29/06/17, .

Frequency stability analysis in low frequency AC systems for renewables power transmission. / Dong, J.; Attya, A.B.; Anaya-Lara, O.

2017. Paper presented at 6th IEEE International Conference on Clean Electrical Power, Genoa, Italy.

Research output: Contribution to conferencePaper

TY - CONF

T1 - Frequency stability analysis in low frequency AC systems for renewables power transmission

AU - Dong,J.

AU - Attya,A.B.

AU - Anaya-Lara,O.

PY - 2017/6/27

Y1 - 2017/6/27

N2 - The foreseen high penetration levels of wind energy will have serious implications on frequency stability, hence developed control methods of wind turbine and alternative technologies including energy storage should enable the provision of frequency support by wind power. Active research is ongoing to investigate the possibility of collecting and transmitting offshore wind power through low frequency alternating current systems (LFAC). This paper develops a novel method to enhance frequency support capability of generators connected to a LFAC system. The leveraged frequency regulation ability of the generators at LFAC system is emphasized. The voltage is proportional to the frequency of the LFAC system, so that the transformers can be protected when frequency drops. Then the generators at LFAC system acquire sufficient time for frequency regulation. In this paper, a hydro generator at LFAC system is regarded as an energy storage plant, which is connected to the LFAC system rather than normal frequency grid.

AB - The foreseen high penetration levels of wind energy will have serious implications on frequency stability, hence developed control methods of wind turbine and alternative technologies including energy storage should enable the provision of frequency support by wind power. Active research is ongoing to investigate the possibility of collecting and transmitting offshore wind power through low frequency alternating current systems (LFAC). This paper develops a novel method to enhance frequency support capability of generators connected to a LFAC system. The leveraged frequency regulation ability of the generators at LFAC system is emphasized. The voltage is proportional to the frequency of the LFAC system, so that the transformers can be protected when frequency drops. Then the generators at LFAC system acquire sufficient time for frequency regulation. In this paper, a hydro generator at LFAC system is regarded as an energy storage plant, which is connected to the LFAC system rather than normal frequency grid.

KW - frequency regulation

KW - low frequency AC systems

KW - LFAC

KW - hydropower

KW - wind power

M3 - Paper

ER -

Dong J, Attya AB, Anaya-Lara O. Frequency stability analysis in low frequency AC systems for renewables power transmission. 2017. Paper presented at 6th IEEE International Conference on Clean Electrical Power, Genoa, Italy.