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To improve reserve deliverability, independent system operators (ISOs) acquire reserve on a zonal basis to ensure the reserves are at least zonally distributed. Notwithstanding the ability for zonal approaches to improve the reserve location, such approaches are imprecise and do not guarantee reserve deliverability on a nodal basis. In order to satisfy operational requirements, unreliable market solutions...
Economic transmission planning heavily relies on the accuracy of the quantitative analysis using market simulation tool, and it therefore requires benchmarking the simulation tool and model against historical actuals. Facing the technical challenges of such analyses, there is a lack of systematic approach and standard in doing such analyses in the industry. In that regard, this paper presents a thorough...
We demonstrate a down-conversion-based twin photon source pumped by a 10 GHz repetition-rate-tunable comb laser at 1553 nm wavelength. We show high Hong-Ou-Mandel interference visibilities, which are free from the pump-power induced degradation.
Economic transmission planning aims at identifying transmission solutions that reduce system congestion and increase market efficiency. The resulting economic benefits can be quantified by intensive simulations. However, with the rapid increase in the number of transmission proposals for evaluation, the computational requirements may become prohibitive, and therefore it is beneficial to develop an...
Security constrained economic dispatch (SCED) is an important tool for ISOs/RTOs to achieve economic power system operation in day-ahead and real-time markets. However, the wind generation uncertainty varying within a large range may make the SCED model unsolvable under certain scenarios. Thus, curtailment is utilized in this work to avoid the infeasibility in the presence of wind power uncertainty...
This research proposes a systematic approach to identify critical assets that support the efficiency of electricity markets. NERC standards CIP provides guidance on the identification and protection of critical cyber assets that support the reliability of power systems. Those assets don't include properties that are critical to the efficiency of electricity markets. However, attacking such properties...
In value-based transmission planning, market efficiency and associated economic benefits can be achieved from transmission solutions that reduce system congestions. However, to accrue the most value and design the most cost effective transmission solution, it is beneficial to understand the interactions among congested flowgates and strategically address selected congestion issues collectively rather...
Security constrained economic dispatch (SCED) is widely used in recent day-ahead market, especially when there is a large penetration of wind power in the power grid. In this work the wind generation uncertainty is modeled as an interval number, which leads to an interval optimal objective value (fuel costs) of the original SCED, as well as its interval optimal solution (each unit's generation). In...
SDH communication network is critical for the WARMAP system (a Power System Security and Stability Defense System) which transmits data and control command among different layers of control stations and devices. Figuring out the impact of communication failure on WARMAP will ensure the proper functioning of WARMAP. Firstly, this paper introduces the framework and workflow of WARMAP. And then, through...
Wind power is undergoing a rapid development in many countries and has gained greater attention as the penetration of wind power continues to grow. To ensure reliable and efficient operation and planning of large amount of wind power resources, the impact of wind power on the power systems need to be carefully examined. This paper attempts to evaluate the impact of wind power variability on the efficient...
We demonstrate pulsed polarization-entangled photons generated from a periodically poled KTiOPO4 (PPKTP) crystal in a Sagnac interferometer configuration at telecom wavelength. We achieved fidelities of 0.981 ± 0.0002 for |ψȒ〉 and 0.980 ± 0.001 for |ψ+〉 respectively.
This paper presents a methodology to quantify the economic benefits of having centralized energy market and ancillary services market. A long-term production cost simulation model, which performs security-constrained unit commitment (SCUC) and security-constrained economic dispatch (SCED), is employed to simulate the operating conditions of the system with and without the energy and ancillary services...
In MISO Market Efficiency Planning Study, a critical task is to pick from congested flowgates the ones that have the most potential economic benefits. A new ranking strategy, Estimated Potential Benefit (EPB), is proposed. To compare the performance of the new proposed ranking strategy with commonly used ones, ranking correctness index is introduced as a quantitative measure. EPB not only has the...
An accurate estimation of critical load levels (CLLs) is beneficial in evaluating the confidence level for the predicted locational marginal prices (LMPs) in power markets. This paper proposes an efficient algorithm to quickly identify CLLs under the with-loss-DCOPF framework. The proposed method approximates the trajectory of DCOPF solutions with respect to the system load variations. The quadratic...
This paper provides a brief overview on FERC Order 1000 and MISO value-based planning process. The focus of this paper is to provide the concepts of two distinct cost allocation methodologies, economic benefit based and transmission usage based, which could be used as potential prototypes for FERC Order 1000 compliance.
Congested flowgate ranking is a process to rank flowgates by the potential benefits associated with each flowgate when it is relieved. The rank can be used to help identify top congested flowgates for full evaluation and planning. Ideally, congested flowgates should be ranked by their potential benefits when congestion is relieved individually. This approach however requires one change case simulation...
Conventional optimization technique suggests that marginal unit generation sensitivity (MUGS) may be calculated based on perturbation at optimality. The calculated MUGS however only applies to the perturbed operating point. Often times it is not advisable to apply this local information to predict generations at another loading level with considerable load change, and therefore another calculation...
Digital Signal Processing (DSP) technologies are widely used nowadays. Aiming at the digital signals characteristic parameters in wind tunnel tests, a DSP platform based on MATLAB and C++ Builder mixed programming method is built up. The process technique and the application of the DSP platform in 2.4 m transonic wind tunnel are discussed.
Summary form only given: In power market studies, the forecast of locational marginal price (LMP) relies on the load forecasting results from the viewpoint of planning. It is well known that short-term load forecasting results always carry certain degree of errors mainly due to the random nature of the load. At the same time, LMP step changes occur at critical load levels (CLLs). Therefore, it is...
This paper presents two small test systems for power system economic studies. The first system is based on the original PJM 5-bus system, which contains data related to real power only, because it demonstrates results based on the linearized DC optimal power flow (OPF) model. This paper suggests some modification to the original data, as well as new parameters related to reactive power such that AC-model-based...
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