Equivalent energy function approach to power system probabilistic modeling

Wang, X.

doi:10.1109/59.14528

Cited by 61 publications

(18 citation statements)

References 5 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Conventional algorithms, like Fourier series method [3], semi-invariant method [4], piecewise linear approximation method [5], and equivalent energy function method [6], are all based on ELDC and its transformation. However, ELDC methods omit the chronological information of system, thus these approaches are not suitable for strong time-varying and random system like wind power integrated systems.…”

Section: Introductionmentioning

confidence: 99%

Universal Generating Function Based Probabilistic Production Simulation Approach Considering Wind Speed Correlation

Zhou

Wang

et al. 2017

Energies

View full text Add to dashboard Cite

Due to the volatile and correlated nature of wind speed, a high share of wind power penetration poses challenges to power system production simulation. Existing power system probabilistic production simulation approaches are in short of considering the time-varying characteristics of wind power and load, as well as the correlation between wind speeds at the same time, which brings about some problems in planning and analysis for the power system with high wind power penetration. Based on universal generating function (UGF), this paper proposes a novel probabilistic production simulation approach considering wind speed correlation. UGF is utilized to develop the chronological models of wind power that characterizes wind speed correlation simultaneously, as well as the chronological models of conventional generation sources and load. The supply and demand are matched chronologically to not only obtain generation schedules, but also reliability indices both at each simulation interval and the whole period. The proposed approach has been tested on the improved IEEE-RTS 79 test system and is compared with the Monte Carlo approach and the sequence operation theory approach. The results verified the proposed approach with the merits of computation simplicity and accuracy.

show abstract

Section: Introductionmentioning

confidence: 99%

Universal Generating Function Based Probabilistic Production Simulation Approach Considering Wind Speed Correlation

Zhou

Wang

et al. 2017

Energies

View full text Add to dashboard Cite

show abstract

“…Current literatures on the stochastic production simulation algorithms of power systems mainly include the piecewise linear approximations method [4,5], the slab method [6], the equivalent power function method [7][8][9] and the half-invariant method [10][11][12]. The fundamental idea of all these algorithms is to convert the chronological load curve to a sequential load curve during which process the time information is lost and the time-variant characteristics of wind power and PV power cannot be reflected effectively.…”

Section: Introductionmentioning

confidence: 99%

Operation Modeling of Power Systems Integrated with Large-Scale New Energy Power Sources

et al. 2016

Energies

View full text Add to dashboard Cite

Abstract:In the most current methods of probabilistic power system production simulation, the output characteristics of new energy power generation (NEPG) has not been comprehensively considered. In this paper, the power output characteristics of wind power generation and photovoltaic power generation are firstly analyzed based on statistical methods according to their historical operating data. Then the characteristic indexes and the filtering principle of the NEPG historical output scenarios are introduced with the confidence level, and the calculation model of NEPG's credible capacity is proposed. Based on this, taking the minimum production costs or the best energy-saving and emission-reduction effect as the optimization objective, the power system operation model with large-scale integration of new energy power generation (NEPG) is established considering the power balance, the electricity balance and the peak balance. Besides, the constraints of the operating characteristics of different power generation types, the maintenance schedule, the load reservation, the emergency reservation, the water abandonment and the transmitting capacity between different areas are also considered. With the proposed power system operation model, the operation simulations are carried out based on the actual Northwest power grid of China, which resolves the new energy power accommodations considering different system operating conditions. The simulation results well verify the validity of the proposed power system operation model in the accommodation analysis for the power system which is penetrated with large scale NEPG.

show abstract

“…It is a deep description of power system. The main algorithms of probabilistic production simulation based on continuous load curve are sub-linear approximation algorithm [1] , cumulant method [2,3] and equivalent energy function method [4,5] and so on. The references [6,7] proposed a probabilistic production simulation method based on chronological Load Curve.…”

Section: Introductionmentioning

confidence: 99%

The Probabilistic Production Simulation for Mixed Wind-Hydro-Thermal Power System and the Sensitivity Analysis for the Indices of Abandoned Wind

Zhang¹,

Zhu²,

Shen³

et al. 2012

2012 Asia-Pacific Power and Energy Engineering Conference

View full text Add to dashboard Cite

In order to adapt the new situation that large-scale wind power is being integrated into power system more and more, the probabilistic production simulation method for mixed windhydro-thermal power system is researched and improved in this paper. The units loading order is redefined based on equivalent continuous load curve. The indices of loss of wind energy expectation (LWEE) and abandoned wind rate (AWR) are proposed based on the improved production simulation. The analytical expression of partial derivative of the indices with respect to conventional unit capacity is derived based on cumulant method. The results on IEEE-RTS79 system demonstrate that the proposed method is feasible and effective.

show abstract

Equivalent energy function approach to power system probabilistic modeling

Cited by 61 publications

References 5 publications

Universal Generating Function Based Probabilistic Production Simulation Approach Considering Wind Speed Correlation

Universal Generating Function Based Probabilistic Production Simulation Approach Considering Wind Speed Correlation

Operation Modeling of Power Systems Integrated with Large-Scale New Energy Power Sources

The Probabilistic Production Simulation for Mixed Wind-Hydro-Thermal Power System and the Sensitivity Analysis for the Indices of Abandoned Wind

Contact Info

Product

Resources

About