Estimation of power system inertia constant and capacity of spinning-reserve support generators using measured frequency transients

Inoue, Taiki; Taniguchi, Haruhito; Ikeguchi, Y.; Yoshida, Kanako

doi:10.1109/59.574933

Cited by 246 publications

(114 citation statements)

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“…6 shows the dynamic response of the controller for different values of parameter. From (13) it can be noted that the controller gain γ and weighting factor α are inversely related, i.e., a higher value of the controller gain will decrease the value of the weighting factor α in (9). The latter implies that, as γ increases, larger variations in i ESS P − Δ will be tolerated (see Fig.…”

Section: B Central Virtual Inertia Command For the I-th Control Areamentioning

confidence: 92%

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Notice of Violation of IEEE Publication Principles: LFC by coordinated virtual inertia mimicking and PEVs in power utility with MW-class distributed PV generation

Datta

Ishikawa

Naitoh

et al. 2012

2012 IEEE 13th Workshop on Control and Modeling for Power Electronics (COMPEL)

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This paper presents a load frequency control (LFC) by using distributed energy storage systems (ESSs) and plug-in electric vehicles (PEVs) in a large power system with MW-level distributed PV generation. The ESSs are controlled to mimic virtual inertia. Controls are done in two levels: central and local. An optimal virtual inertia is calculated considering the total PV power variation in a control area. Based on this, central ESS power command is decided and by coordination, this central ESS power command is distributed to the local ESSs to emulate the optimal virtual inertia. PEVs are used for the LFC considering user convenience, availability and state of charge (SOC) of the batteries. Effectiveness of the proposed method to provide LFC is verified by numerical simulation results.

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Section: B Central Virtual Inertia Command For the I-th Control Areamentioning

confidence: 92%

“…Finally, from (10) the optimal virtual inertia can be defined as: (13) has been defined to simplify the notation. The surface of Fig.…”

Section: B Central Virtual Inertia Command For the I-th Control Areamentioning

confidence: 99%

Notice of Violation of IEEE Publication Principles: LFC by coordinated virtual inertia mimicking and PEVs in power utility with MW-class distributed PV generation

Datta

Ishikawa

Naitoh

et al. 2012

2012 IEEE 13th Workshop on Control and Modeling for Power Electronics (COMPEL)

View full text Add to dashboard Cite

show abstract

“…From Fig. 1 it is obvious that the usual interpretation that higher demand implies higher system stored energy is not directly applicable (Inoue, et al, 1997). Moreover, the operational policy of the system ensures a minimum system stored energy of ~25000 MWs from synchronous generators which limits the minimum system inertial constant in Fig.…”

Section: Load Inertia Estimation Of Irish Power Systemmentioning

confidence: 99%

“…In particular, the load power sensitivity to frequency, which links to load inertia, is important for system overall frequency response simulation. The white-box approach has been applied in different areas of power system modelling as well as load modelling (Bank Tavakoli, et al, 2009;Inoue, et al, 1997). The grey-box approach is widely used in power system load modelling as well (Welfonder, et al, 1989;O'Sullivan and O'Malley, 1996).…”

Section: System Identification and Parameter Estimation: Load Modellimentioning

confidence: 99%

Load Inertia Estimation Using White and Grey-Box Estimators for Power Systems with High Wind Penetration

Tavakoli

Power

Ruttledge

et al. 2012

IFAC Proceedings Volumes

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The increasing penetration of wind farms in power systems has increased concerns over the frequency behaviour and control of synchronous power systems due to a low contribution from modern wind turbines to overall system inertia. With this trend of conventional generators being displaced by variable speed wind turbines, the contribution from load inertia becomes more significant. The need for greater consideration towards load inertia estimation, or even on-line tracking of load inertia, seems to be required. A white-box method for estimation of load inertia is examined using system frequency and generator output power signals from previous generator forced outages. A grey-box identification method is also applied to estimate the inertia of synchronous generators. The impact of sampling rates, time shifting and signal averaging on parameter estimation is also considered. The method is shown to be robust enough to be applied for load inertia estimation in control centres.

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“…Research has been conducted in [106] to estimate the total inertia constant of the power system. The research was aimed at determining spinning reserve requirements for the power system.…”

Section: Inertia Estimationmentioning

confidence: 99%

Virtual Inertia: Current Trends and Future Directions

et al. 2017

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Abstract:The modern power system is progressing from a synchronous machine-based system towards an inverter-dominated system, with large-scale penetration of renewable energy sources (RESs) like wind and photovoltaics. RES units today represent a major share of the generation, and the traditional approach of integrating them as grid following units can lead to frequency instability. Many researchers have pointed towards using inverters with virtual inertia control algorithms so that they appear as synchronous generators to the grid, maintaining and enhancing system stability. This paper presents a literature review of the current state-of-the-art of virtual inertia implementation techniques, and explores potential research directions and challenges. The major virtual inertia topologies are compared and classified. Through literature review and simulations of some selected topologies it has been shown that similar inertial response can be achieved by relating the parameters of these topologies through time constants and inertia constants, although the exact frequency dynamics may vary slightly. The suitability of a topology depends on system control architecture and desired level of detail in replication of the dynamics of synchronous generators. A discussion on the challenges and research directions points out several research needs, especially for systems level integration of virtual inertia systems.

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Estimation of power system inertia constant and capacity of spinning-reserve support generators using measured frequency transients

Cited by 246 publications

References 1 publication

Notice of Violation of IEEE Publication Principles: LFC by coordinated virtual inertia mimicking and PEVs in power utility with MW-class distributed PV generation

Notice of Violation of IEEE Publication Principles: LFC by coordinated virtual inertia mimicking and PEVs in power utility with MW-class distributed PV generation

Load Inertia Estimation Using White and Grey-Box Estimators for Power Systems with High Wind Penetration

Virtual Inertia: Current Trends and Future Directions

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