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41.
As carbon emissions reduction is becoming increasingly important for sustainable development and carbon neutrality targets, the concept of carbon emission market has been recently proposed in order to essentially manage carbon emission on the demand side by allowing electricity consumers to purchase or sell carbon emission quotas. Hence, real-time demand-side carbon emission monitoring (DCEM), indicating the amount of carbon emission that each electricity consumer should be responsible for, becomes a necessity for the operation of the carbon emission market. However, the real-time DCEM cannot be achieved by carbon emission flow (CEF) analysis due to the unavailability of real-time power demand data. In this connection, this paper proposes a two-stage real-time DCEM method based on the graph neural network (GNN). In the first stage, power system operating scenario data, including the power generation capacity and power demand data, are collected to calculate carbon emission patterns through CEF analysis. In the second stage, a data-driven GNN-based model is designed to learn from historical daily carbon emission patterns and then realize accurate real-time DCEM with real-time available generation-side measurements only. Case studies on the 118-bus power system operated with day-ahead planning considering carbon emission are performed to demonstrate the accuracy and effectiveness of the proposed method. 相似文献
42.
Yinyu Yan Yichao Sun Member IEEE Zhiyuan Fan Carlos Alberto Teixeir Member IEEE Minqiang Hu Member IEEE 《电力系统保护与控制》2025,10(2):54-68
Energy storage systems support electrical grid stability by enabling strategies to tackle issues, such as power fluctuations, low inertia, and insufficient damping. The present study proposes a battery energy storage system based on a modular multilevel converter with multiplexed submodule arms (M-MMC-BESS) to reduce the number of switching devices while embedding DC short-circuit fault ride-through capability. Compared to the conventional two-stage half-bridge topology, the M-MMC-BESS retains the same number of switching devices but allows uninterrupted operation under DC short-circuit faults. In addition, compared to the two-stage full-bridge topology, the proposed topology reduces the number of switching devices by one-third. The control of the M-MMC-BESS is thoroughly investigated under both normal and DC short-circuit operating conditions. Simulation and experimental results are used to demonstrate the effectiveness of the proposed system and control approach. 相似文献
43.
Fuzhang Wu Jun Yang Member IEEE Song Ke Hao Jiang Muchao Xiang Zaixun Ling Guiping Deng 《电力系统保护与控制》2025,10(4):16-27
Large-scale development of electric vehicles (EVs) exposes power grids and transportation networks with limited capacity to increased fault risks. In this paper, a method to prevent fault risks in advance by using the flexibility of EV travel to coordinate the operation of distribution and transportation networks is proposed. Since EV travel decisions are influenced by the charging and travel time costs, adjusting charging price and travel time price can help guide behavior and enable coordinated operation of power and transportation networks. First, risk-based distribution locational marginal prices (RDLMPs) are established to restrain the distribution network risks. Second, traffic risks are formulated using origin-destination (OD) risk marginal prices (ODRMPs) considering the degree of traffic congestion fault risks. Under the guidance of the RDLMPs and ODRMPs, EV fleets optimize their travel plans to minimize overall costs, including charging and time costs. Finally, case studies verify that the proposed method can reduce the operational risks of both distribution and transportation networks. 相似文献
44.
Yongjun Zhang Senior Member IEEE Kaidong Lin Wenyang Deng Member IEEE Di Zhang Dongliang Xiao 《电力系统保护与控制》2024,9(3):60-69
The occurrence of power flow reversal and off-limit of the voltage on common bus becomes more frequent because of the increasing penetration of renewable energy sources (RES) in microgrids. To guarantee the safe and stable operation, adjusting the power output of RES-based inverters to avoid the off-limit voltage is necessary. Considering the apparent power characteristics of inverters, as well as the minimum participation of active power, a voltage control strategy based on stage division to be within the voltage limit is investigated in this paper. In the case of unknown demand and distribution of loads, the proposed control strategy is able to make full use of the apparent power to regulate voltage using simple calculations, while the performance in economical operation is satisfactory. Simulation results prove the effectiveness of the proposed method on the common bus off-limit voltage adjustment. 相似文献
45.
Ann S. Marucheck Member IIE 《IIE Transactions》1987,19(3):355-360
Product liability is one of the most costly and confusing problems facing manufacturing today. In this paper, models of the economic impact of both final acceptance sampling and process control on liability risk due to a manufacturing defect are presented. A numerical example reveals that selection of cost-effective quality control methods depends on assumed disposition of rejected lots. 相似文献
46.
Richard. F. Deckro Senior Member Iie Ronald W. Spahr Senior Member Iie John E. Hebert 《IIE Transactions》1985,17(4):332-337
Capital budgeting analysis may be characterized as an attempt to satisfy a set of potentially conflicting objectives. Corporate managers may be faced with multiple and conflicting objectives. The wide-spread acceptance of prioritized objectives in capital budgeting has stimulated the adoption of pre-emptive goal programming models. This paper presents a procedure to model a goal programming based capital budgeting model as a polynomial expression where inter-and intra-goal trade-offs can be achieved subject to the marginal rates of substitution between preference levels. 相似文献
47.
48.
Charles E. Bradley Senior Member Iie Sam G. Taylor Senior Member Iie Wayne I. Gray 《IIE Transactions》1985,17(4):320-326
This paper develops a general procedure to size storage facilities for open pit coal mines. More particularly, the paper presents (1) deterministic models for estimating working stock requirements, and (2) simulation models in the SLAM language which can be used to analyze safety stock requirements. The design procedure is illustrated using data similar to that experienced by a mine in Wyoming's Powder River Basin. 相似文献
49.
Nallan C. Suresh Member IIE 《IIE Transactions》1992,24(2):131-143
In this paper a multiperiod replacement model is developed in the context of an incremental implementation of flexible automation investments. The model takes into account die costs, benefits and effective utilization of several types of flexibility, in deriving optimal machine replacement sequences and cost-effective production plans during the transition and later periods. 相似文献
50.
Personal photo revisitation on smart phones is a common yet uneasy task for users due to the large volume of photos taken in daily life. Inspired by the human memory and its natural recall characterist... 相似文献