Robust Optimal Dispatch, Secondary, and Primary Reserve Allocation for Power Systems With Uncertain Load and Generation

Münz, Ulrich; Mešanović, Amer; Metzger, Michael; Wolfrum, Philipp

doi:10.1109/tcst.2017.2670535

Cited by 12 publications

(2 citation statements)

References 25 publications

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“…We wish to characterize the response of the interconnected system to disturbances in the nodal power injections, possibly representing faults, disconnection of loads or generators, intermittent demand, or fluctuating power generation from renewable sources as in [7]- [12], [34]. To do so, we consider the linear power system model (1) driven by the inputs p in,i parametrized as p in,i = π i 1 2 η i .…”

Section: A System Modelingmentioning

confidence: 99%

A Market Mechanism for Virtual Inertia

Poolla,

Bolognani,

et al. 2017

Preprint

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One of the recognized principal issues brought along by the steadfast migration towards power electronic interfaced energy sources is the loss of rotational inertia. In conventional power systems, the inertia of the synchronous machines plays a crucial role in safeguarding against any drastic variations in frequency by acting as a buffer in the event of large and sudden power generation-demand imbalances. In future power electronic-based power systems, the same role can be played by strategically located virtual inertia devices. However, the question looms large as to how the system operators would procure and pay for these devices. In this article, we propose a market mechanism inspired by the ancillary service markets in power supply. We consider a linear network-reduced power system model along with a robust H2 performance metric penalizing the worst-case primary control effort. With a social welfare maximization problem for the system operator as a benchmark, we construct a market mechanism in which bids are invited from agents providing virtual inertia, who in turn are compensated via a Vickrey-Clarke-Groves payment rule. The resulting mechanism ensures truthful bidding to be the dominant bidding strategy and guarantees non-negative payoffs for the agents. A three-region case study is considered in simulations, and a comparison with a regulatory approach to the same problem is presented.

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Section: A System Modelingmentioning

confidence: 99%

A Market Mechanism for Virtual Inertia

Poolla,

Bolognani,

et al. 2017

Preprint

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“…The short-term active reserve decision of the power system has never been an isolated research problem but is closely combined with the combination of power system security constrained units. Reference [8] proposed a security constrained unit commitment (SCUC) model with primary and secondary frequency reserve to optimize the energy and frequency reserve to provide satisfactory frequency performance; Reference [9] proposed a novel methodology to determine the optimum level of secondary reserve,and presented an original approach to improve the economic effciency of the secondary reserve market, while guaranteeing system security; Reference [10] proposed algorithms based on linear and convex optimization for robust optimal dispatch, as well as secondary reserve, i.e., frequency restoration reserve, and primary reserve allocation in transmission systems subject to uncertain load and generation variations; Reference [11] studied the grid frequency response after a contingency event in the power system with a high penetration of wind power and proposed A methodology for the sizing of the ESS in terms of required power and energy.It described the contribution of the ESS to the grid, in terms of inertial constant and droop.…”

Section: Introductionmentioning

confidence: 99%

Demand Side Response Participation in Reserve Configuration Optimization Based on Decomposition and Coordination

Xia

et al. 2020

IEEE Access

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As the proportion of new energy sources in the grid increases and the structure of the ultra-highvoltage grid becomes more complicated, the variability of the external environment and the complexity of the grid itself bring many new challenges to the power system reserve configuration problem. The multilevel and multitime scale characteristics of the grid reserve are analyzed in this paper, and the reserve is classified according to the response time characteristics combined with the system function. We establish a demandside response participation system reserve configuration optimization model, including synchronous generator generation and reserve models, demand-side scheduling and reserve models, grid power generation planning and reserve optimization mathematical models. Based on the idea of decomposition coordination, the current power generation plan and reserve optimization problem are decomposed into a finite fault state safety constraint unit combination subproblem, Monte Carlo secondary negative reserve constraint check subproblem, frequency safety constraint checking subproblem based on large-disturbance long-process time domain simulation analysis, and fault state static safety constraint check subproblem based on minimum load shedding. Considering the demand side response to the reserve configuration of the system, combined with the problem of previous unit association, the optimal allocation of the reserve coal consumption units is realized by determining the start and stop status of the unit and the unit output.

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