Frequency control using fast demand response in power system with a large penetration of renewable energy sources

AbstractIn response to mounting concerns regarding environmental problem and depletion of Energy Resources, the introduction of Renewable Energy Sources (RESs), has been advancing in recent years. The system frequency deviation is a serious problem for a RESs-integrated power system. In this paper, we propose a system frequency control method using the automated demand response (ADR) for an isolated power system with RESs. The ADR can automatically adjust the consumption power of appliances after receiving the DR signal. It is assumed that consumption power of controllable loads is automatically varied based on the electricity price information from the real-time pricing (RTP). This method improves the supply-demand balancing, and hence the system frequency control is achieved. Furthermore, the stability of controller is demonstrated by indicating the poles of the control system.

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Load frequency control for renewable energy sources for isolated power system by introducing large scale PV and storage battery

Energy Reports ◽

10.1016/j.egyr.2020.12.030 ◽

2020 ◽

Vol 6 ◽

pp. 1597-1603

Author(s):

Lei Liu ◽

Tomonobu Senjyu ◽

Takeyoshi Kato ◽

Abdul Motin Howlader ◽

Paras Mandal ◽

...

Keyword(s):

Renewable Energy ◽

Power System ◽

Large Scale ◽

Frequency Control ◽

Renewable Energy Sources ◽

Load Frequency Control ◽

Energy Sources ◽

Storage Battery ◽

Load Frequency ◽

And Storage

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An application of adjustable speed diesel power plant to frequency control of small scale power system with renewable energy sources

2019 IEEE PES Asia-Pacific Power and Energy Engineering Conference (APPEEC) ◽

10.1109/appeec45492.2019.8994410 ◽

2019 ◽

Author(s):

Rion Takahashi ◽

Atsushi Umemura ◽

Junji Tamura

Keyword(s):

Renewable Energy ◽

Power Plant ◽

Power System ◽

Frequency Control ◽

Renewable Energy Sources ◽

Energy Sources ◽

Small Scale ◽

Adjustable Speed

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Evaluation Method for Penetration Limit of Renewable Energy Sources in Korean Power System

Energies ◽

10.3390/en12214207 ◽

2019 ◽

Vol 12 (21) ◽

pp. 4207

Author(s):

Han Gwon ◽

Woo Choi ◽

Kyung Kook

Keyword(s):

Power Generation ◽

Renewable Energy ◽

Power System ◽

Evaluation Method ◽

Frequency Control ◽

Renewable Energy Sources ◽

Supply And Demand ◽

Total Power ◽

Energy Sources ◽

Primary Frequency

As Korea aims to increase the extent to which renewable energy sources (RES) account for up to 20% of the total power generated in the country by 2030, the feasibility of this target is a major concern. This concern largely results from the Korean power system possessing unique characteristics, such as its electrical isolation and high density. To achieve the RES target, the reliable operation of the power system must coexist with an increased share of RES power generation. This study proposes a method to evaluate the penetration limit of RES in the Korean power system considering the existing plans for the long-term electricity supply and demand, as well as its operational requirements. The Korea electric power corporation (KEPCO) planning database of the Korean power system for the next 15 years was employed to determine the penetration limit of RES considering the reliability criteria, including the minimum power generation of conventional sources, primary frequency control requirement, 10-min reserve requirement, and frequency stability.

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