An application of robust power system security to power system operation for high-penetration of PV

The rapid growth in demand of electricity combined with renewable energy sources (RESs) are presenting serious challenges for the optimal network operation. The future perspective of the dramatic increase in RESs, such as wind and solar energy, may lead to severe problems related to the load dispatch. Other important aspect is the reduction of controllable resources yielding concerns about the reliability issues of such sources. This paper focuses on a new technique for mitigating the irregularity associated with renewable power generation. A new method is proposed for 24-hour and real-time generation schedule as an efficient solution for demand and supply management over the limited control resources of a power system. Load following capability will be considered as critically limited. The flexible operational outcome of the proposed approach satisfies the economical requirements and reliability against uncertainties of RESs.

show abstract

“…Step A-2 Calculate per-unit fuel cost at present dispatching power by using the following equation (19).…”

Section: Stochastic Load Flow Constraintmentioning

confidence: 99%

“…Our goal is to develop a new type of smart grid controller that enforces robust security against uncertainties [19]. Fig.…”

Section: A Controller Configurationmentioning

confidence: 99%

A robust supply and demand controller against uncertainties of renewable energy sources

Sasaki

Seikoba

Okihara

et al. 2014

2014 Power Systems Computation Conference

Self Cite

View full text Add to dashboard Cite

show abstract

“…Thus, a sharp increase in PV installment is expected [1]. Moreover, by utilizing this concept of Robust security, Robust dynamic security region (RDS), the region directly related to security evaluation among the four regions defined by Robust security, can be used as a quantitative evaluation index for N-1 security [11]. When PV is penetrated on a large scale in a power grid, problems such as voltage adjustments for the distribution grid, deficiency in adjustment to absorb output fluctuations, and frequency fluctuations have been pointed out [2].…”

Section: Introductionmentioning

confidence: 99%

A Study on the Power System Security under Future Uncertainties

Okumoto

Yorino

Sasaki

et al. 2016

Electrical Engineering Japan

Self Cite

View full text Add to dashboard Cite

In this paper, we propose three applications to quantitatively evaluate N-1 security with increased uncertainties. By using a robust dynamic security region (RDS), which is based on the concept of robust power system security (RS), the key region for judging the security and a new evaluation index for quantitative analysis, we can evaluate power system security as follows. (1) The calculation of the RDS at the time of yearly peak load demand can be recognized as the benchmark for the N-1 security at present, and this method can be applied to the future power system with increased renewable energy resources (RES) such as PV.(2) We show the yearly declining trend for N-1 security resulting from increased PV deployment year by year. (3) We calculate the necessary amount of additional power supply capacity, including conventional electric power generators or storage batteries, needed for maintaining the N-1 security at the present level. The effectiveness of the proposed method is demonstrated through simulations using a model system with three machines. C⃝ 2016 Wiley Periodicals, Inc. Electr Eng Jpn, 197(1): 15-25, 2016; Published online in Wiley Online Library (wileyonlinelibrary.com).Keywords: robust power system security (RS); new evaluation index for N-1 security; benchmark for N-1 security; increased PV penetration.

show abstract

“…However, it is a fact that no effective methodologies exist up to now to evaluate the N-1 security quantitatively with increased RES. In order to cope with this problem, the authors have proposed a new criterion named "Robust Power System Security (RS)" by extending the conventional N-1 security criterion [8,9]. Y. Okumoto is with the Chugoku Electric Power Co., Hiroshima, Japan (okumotoy@ms3.megaegg.ne.jp) N. Yorino, Y. Zoka, Y. Sasaki, T. Akiyoshi and T. Isoya are with Graduate School of Engineering, Hiroshima University, Higashi-Hiroshima, Japan RS is defined as an area of power system operation in which the system is secure regardless of uncertainties in parameters such as RES outputs.…”

Section: Introductionmentioning

confidence: 99%

A study on the power system security with increased PV penetration by applying the robust power system security

Okumoto

Yorino

Zoka

et al. 2014

IEEE PES Innovative Smart Grid Technologies, Europe

Self Cite

View full text Add to dashboard Cite

This paper proposes a method of evaluating the N-1 security quantitatively with increased PV penetration. The authors applied the concept of Robust Power System Security (RS) proposed by us to this method. By using Robust Dynamic Security region (RDS), which is based on this concept and the key region for judging the security, we can evaluate the power system security as follows. (1) RDS is identified as the benchmark of the N-1 security. (2) Yearly declining trend of the N-1 security is shown in Japan. (3) The necessary amount of additional power supply capacity can be calculated to maintain the future N-1 security same as the present level. The effectiveness of the proposed method is demonstrated through simulations using a three machines model system.Index Terms-Robust Power System Security (RS),

show abstract

An application of robust power system security to power system operation for high-penetration of PV

Cited by 16 publications

References 25 publications

A robust supply and demand controller against uncertainties of renewable energy sources

A robust supply and demand controller against uncertainties of renewable energy sources

A Study on the Power System Security under Future Uncertainties

A study on the power system security with increased PV penetration by applying the robust power system security

Contact Info

Product

Resources

About