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检索条件"机构=Beijing Key Laboratory of Power Automation Technology Research and System Evaluation"

共 392 条记录，以下是41-50 订阅

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Improved-Informer Model Based Short-Term Electricity Price Forecast

Improved-Informer Model Based Short-Term Electricity Price F...

引用

IEEE Asia power and Energy Engineering Conference (APEEC)

作者： Yuxuan Li Zhi Cai Dan Xu Xiaojing Hu Beijing Key Laboratory of Research and System Evaluation of Power Dispatching Automation Technology China Electric Power Research Institute Beijing China

ISBN: (数字)9798350373479

ISBN: (纸本)9798350373486

With the development of the electricity spot market, short-term electricity price forecasting becomes more and more significant for the decision-making of all market entities, and the continuous access of high proportion clean energy and energy storage to the market poses great challenges to short-term electricity price forecasting. This paper proposes an improved-Informer based multi-step short-term electricity price forecasting model. After the original Informer model is improved by adding a global timestamp, it can better capture the temporal characteristics of electricity prices. In particular, Informer itself is also featured by multi-label output, allowing for load forecasting simultaneously with electricity price forecasting. Actual electricity market data is used for verification, and the experimental results show that the model can effectively improve the accuracy of short-term electricity price forecasting in the electricity market.

关键词： Electrical engineering Load forecasting Electricity Decision making Predictive models Electricity supply industry Decoding

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Decomposition-Coordination Optimization Model for Multi-area Unit Maintenance Scheduling

Decomposition-Coordination Optimization Model for Multi-area...

引用

IEEE Asia power and Energy Engineering Conference (APEEC)

作者： Zhi Cai Qiang Ding Xiaojing Hu Shengnan Xu Muchen Yuan Linghao Li Beijing Key Laboratory of Research and System Evaluation of Power Dispatching Automation Technology China Electric Power Research Institute Beijing China

ISBN: (数字)9798350373479

ISBN: (纸本)9798350373486

By utilizing decomposition by analytical target cascading technique, the decentralized coordination optimization problem is decomposed into the main problem on higher-level decision optimization and the sub-problem on lower-level decision optimization. With sharing of interconnected power system resources and ensuring the confidentiality of power system information, the power system unit maintenance plan is quickly developed to achieve decentralized autonomy of regional interconnected systems and improve the economy and flexibility of the unit maintenance scheduling.

关键词： Electrical engineering Privacy Costs Electricity Interconnected systems Wind power generation Wind farms

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Active Security Constraint Identification Based on KKT Condition for Security-Constrained Economic Dispatch

Active Security Constraint Identification Based on KKT Condi...

引用

power Engineering (ICPE), International Conference on

作者： Mingkai Yu Lixin Li Qiang Ding Dan Xu Zhi Cai Beijing Key Laboratory of Research and System Evaluation of Power Dispatching Automation Technology China Electric Power Research Institute Beijing China

ISBN: (数字)9798331531140

ISBN: (纸本)9798331531157

The optimal power flow problem plays an essential role in power system economic dispatch. To conduct daily operation, a huge number of scheduling plans are made in diverse systems. In order to reduce the scale of economic dispatch problems and improve the efficiency of scheduling, an active security constraint identification method is proposed in this paper, which aims to remove adequate useless security constraints to accelerate the calculation of dispatch problem, and keep the optimal solution unchanged. Based on the KKT condition, the proposed model can search for every possible active security constraint, other inactive constraints will be removed for speeding up the solution process. Case studies of an IEEE 30-bus system are demonstrated to show the active constraint identification results. Then, a 57 -bus system and a 118 -bus system are used for presenting the calculation efficiency of the proposed method.

关键词： Economics power engineering Analytical models power system economics Security Load flow

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research on Construction and Simulation technology of Virtual power Grid Dispatch Instructors in DTS

Research on Construction and Simulation Technology of Virtua...

引用

IEEE Advanced Information Management,Communicates,Electronic and automation Control Conference (IMCEC)

作者： Qi Xiaolin Han Yi Zhang Fengbin Qiu Chengjian Song Xuri Beijing Key Laboratory of Research and System Evaluation of Power Dispatching Automation Technology China Electric Power Research Institute Beijing China

ISBN: (数字)9798350316537

ISBN: (纸本)9798350316544

To solve the problems of single application scenarios, high system usage thresholds, and heavy workload of instructors in dispatcher training system(DTS), this paper introduces the concept of virtual digital avatar into DTS and designs the functional form of virtual instructors, which breaks through key technologies such as probabilistic fault modeling, generation of time-varying trends in power grid regulation and operation, and RPA based virtual instructor process control. It can support scenarios such as typical fault teaching and independent training and problem-solving etc. This article realizes a comprehensive digital replacement of the role of human instructors in scheduling skills training, providing one-to-many, 24-hour, and personalized scheduling training simulation services.

关键词： Training automation Avatars Process control Probabilistic logic Market research power grids

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Linearization and Acceleration Strategy of Unit Commitment Model Incorporating Cascade Hydropower

Linearization and Acceleration Strategy of Unit Commitment M...

引用

IEEE Conference on Energy Internet and Energy system Integration (EI2)

作者： Zhi Cai Xiaojing Hu Qiang Ding Yuxuan Li Chi Zhang Beijing Key Laboratory of Research and System Evaluation of Power Dispatching Automation Technology China Electric Power Research Institute Beijing China

ISBN: (数字)9798331523527

ISBN: (纸本)9798331523534

This paper establishes a hydro-thermal unit commitment model incorporating cascaded hydropower stations. Due to the characteristics of high dimensionality and strong coupling between constraints, this paper adopts linearization methods for nonlinear objectives and constraints after considering the requirements of solving efficiency and calculation accuracy. It proposes corresponding Benders decomposition and heuristic solving methods, and solves the model using IEEE 118 and 300-bus systems.

关键词： Couplings Accuracy Heuristic algorithms Hydroelectric power generation Energy Internet system integration Linear programming

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evaluation of Autonomous Controllability of Computer Equipment in Control system Based on FAHP

Evaluation of Autonomous Controllability of Computer Equipme...

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IEEE Information technology and Mechatronics Engineering Conference (ITOEC)

作者： Linglin Gong Wenzhuo Li Yalei Li Xiaoping Liu Haiyan Zhang China Electric Power Research Institute Co. Ltd Beijing Key Laboratory of Power Automation Technology Research and System Evaluation

ISBN: (数字)9798331529482

ISBN: (纸本)9798331529499

As the "brain" of power grid dispatching operation, the control system gradually requires higher levels of autonomy and controllability of the system and equipment. However, the localization level of computer equipment chips used in current system construction needs to be improved, and autonomous and controllable applications are subject to certain constraints. This article analyzes the necessity of autonomous and controllable evaluation of control system computer equipment, clarifies the scope and principles of evaluation, and constructs a complete set of indicators, methods, and processes for autonomous and controllable evaluation of computer equipment around multiple dimensions, comprehensively and accurately evaluating the autonomous and controllable capabilities of the entire equipment and its components.

关键词： Location awareness Mechatronics evaluation models Process control Controllability Software power grids Hardware Software reliability Information technology

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Electricity Spot Market Design Considering Accurate Security Check 4

Electricity Spot Market Design Considering Accurate Security...

引用

4th International Conference on power and Energy technology, ICPET 2022

作者： Bao, Yueshuang Liu, Xinyuan Zheng, Huiping Cai, Zhi Han, Bin Hu, Xiaojing State Grid Shanxi Electric Power Research Institute Taiyuan China China Electric Power Research Institute Beijing Key Laboratory of Research and System Evaluation of Power Dispatching Automation Technology Beijing China

ISBN: (数字)9781665480796

ISBN: (纸本)9781665480796

Recently, electricity market construction in various provinces of China has had double constraints on the plan and implementation by market transaction rules and safe operation of the power grid, resulting in urgent requirements to improve flow accuracy in security checks. Therefore, based on the influencing factors of security checks in the electricity market, this paper puts forward a design protocol for the electricity spot market considering accurate checks in which the accuracy of the power grid model is improved by analysis of the working conditions of equipment in future states, grid connection of low voltage units and flow calculation of tie line branches. To effectively consider security constraints of the power grid in market clearing, we integrate procedures of section limit calculation, security checks and market clearing calculations into account, establish relationships between equipment and sections and between sections, and propose an accurate algorithm for auxiliary information related to a real cut set section. Finally, the proposed protocol is proven to be accurate based on operation conditions of a provincial electricity market. © 2022 IEEE.

关键词： power markets

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Market Coupling in Europe - Principles and Characteristics 4

Market Coupling in Europe - Principles and Characteristics

引用

4th International Conference on power and Energy technology, ICPET 2022

作者： Cartaxo, Ricardo Casaleiro, Angelo Pastor, Ricardo Pinho Da Silva, Nuno Wei, Yang Souza E Silva, Nuno Bin, Han Hui, Cui Cai, Zhi R&d Nester Sacavém Portugal China Electric Power Research Institute Beijing Key Laboratory of Research and System Evaluation of Power Dispatching Automation Technology Beijing China

ISBN: (数字)9781665480796

ISBN: (纸本)9781665480796

This paper investigates the evolution of the European electricity markets that are leading to the development of the internal European market for electricity (IEM). Focusing on the wholesale electricity spot markets (day-ahead and intraday), the work presents the fundamental concepts and the state-of-the-art of the IEM. The IEM results from the coupling of different European electricity markets, with the goal of increasing the global efficiency in sharing resources among a large number of countries, by promoting competition, increasing liquidity and enabling a more efficient use of the electricity generation and transmission resources across Europe. The architecture, operation and products of the coupled day-ahead and intraday markets are described, and an analysis of the single day-ahead coupling prices is done, exposing that there are regions within Europe where price converge often but the persistence of different market designs within the IEM is a barrier for the European-wide price coupling and market integration. © 2022 IEEE.

关键词： power markets

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Analysis of the Interconnection Capacity Calculation Methodologies for the European Electricity Market

Analysis of the Interconnection Capacity Calculation Methodo...

引用

2023 IEEE International Conference on power Science and technology, ICPST 2023

作者： Cartaxo, Ricardo Casaleiro, Ângelo E Silva, Nuno Souza Pastor, Ricardo Chao, Xia Han, Bin Cai, Zhi Da Silva, Nuno Pinho R&D Nester - Centro de Investigação em Energia REN - State Grid S.A Sacavém Portugal China Electric Power Research Institute Beijing Key Laboratory of Research and System Evaluation of Power Dispatching Automation Technology Beijing China

ISBN: (纸本)9798350311358

The interconnected European transmission system for electricity supports the electricity trading across Europe, promoting the maximization of welfare, in particular when the interconnection capacity is enough to take low marginal cost generation, namely variable renewable power generation, into the demand areas where it is scarce. Transmission systems operators (TSOs) calculate the available interconnection capacity for the day-ahead and intraday markets in a coordinated way. This is a key step to enable price-based market coupling between different countries and regions and, therefore, efficient use of electricity from renewable energy sources and effective distribution of the benefits of renewable electricity across Europe. This work addresses the calculation of interconnection capacity between bidding zones by analyzing the processes and comparing the different methodologies used by European TSOs to coordinate the capacity calculation and compute the underlying generation shift keys (GSKs). The paper focus on the Portuguese cross-border transmission capacity with Spain, where the merit order methodology defines the GSKs supporting the calculation of the Available Transmission Capacity (ATC) for the spot market. © 2023 IEEE.

关键词： power markets

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Big Data Feature Mining Method for Energy Storage system of Photovoltaic power Station in Typical Scenarios

Big Data Feature Mining Method for Energy Storage System of ...

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Information technology,Big Data and Artificial Intelligence (ICIBA), International Conference on IEEE International Conference on

作者： Xinxin Sheng Qingbo Yang Ruili Ye Lin Xie Chaohan Feng Lei Tao Zhoujie Zhang Beijing Key Lab of Research and System Evaluation of Power Dispatching Automation Technology China Electric Power Research Institute Beijing China

ISBN: (数字)9798350363609

ISBN: (纸本)9798350363616

The energy storage system can effectively solve the challenges brought by the high proportion of renewable energy access to the power grid. In this paper, a big data feature mining method based on double-layer intelligent optimization algorithm is proposed. Considering the differences in operating conditions of energy storage systems in photovoltaic power stations caused by different seasonal scenarios and different weather scenarios, the improved bird swarm algorithm is proposed to mine the big data features of energy storage systems in photovoltaic power stations under typical weather scenarios. The inherent operation law of the energy storage system in the actual photovoltaic power station is revealed, and the charging and discharging characteristics of the actual energy storage system are reflected.

关键词： Photovoltaic systems Renewable energy sources Clouds Big Data Birds Dispatching Data mining Optimization Energy storage Meteorology

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