检索结果-内蒙古大学图书馆

China International Electrical and energy Conference (CIEEC)

作者： Xing Zhang Guoqing He Jun Wang Danyang Chen State Key Laboratory of Control and Operation of Renewable Energy and Storage Systems China Electric Power Research Institute (CEPRI) Beijing China State Grid Shanxi Electric Power Research Institute Taiyuan Shanxi China

In view of the need for stability analysis of large- scale new energy cluster connecting to large-scale power grid system, the existing electromagnetic transient simulation tools have certain limitations. At present, there is a lack of simulation platform that can uniformly establish large-scale new energy and large-scale power grid models. Based on two different simulation tools, RTLAB and CloudPSS, a large-scale new energy cluster and large-scale power grid electromagnetic transient co- simulation platform is built. A new energy station equivalence method based on single machine representation method is proposed, and the accuracy of the equivalence method is verified by comparing with detailed station model, which provides a basis for the modeling of large-scale new energy clusters. On the other hand, the electromechanical - electromagnetic model conversion tool based on CloudPSS is introduced, which provides a method for large-scale power grid modeling. At last, the decoupling principle and hardware implementation scheme of co-simulation model based on RTLAB and cloudPSS are presented and the comparison of simulation results verifies the accuracy of the simulation platform.

关键词：

来源：评论

学校读者我要写书评

暂无评论

Particle Swarm Optimization for PSS Parameters and Application to DIgSILENT PowerFactory

Particle Swarm Optimization for PSS Parameters and Applicati...

引用

energy, Electrical and Power Engineering (CEEPE), International Conference on

作者： Yonghan Liu Jing He Peng Wang Haoran Zhao School of Electrical Engineering Shandong University Jinan China State Key Laboratory of Operation and Control of Renewable Energy & Storage System China Power Research Institute Beijing China

The power grid becomes complex, low-frequency oscillations occur more frequently, posing significant challenges to power systems' safe and stable operation. Power system stabilizers are commonly used to enhance system stability by improving damping and suppressing low-frequency oscillations. However, optimizing PSS parameters is a challenging task that typically requires extensive analysis or on-site experimentation. To address this challenge, this study proposes an efficient parameter optimization method for PSSs using the DIgSILENT PowerFactory software and the particle swarm optimization algorithm. The proposed method is validated on a 39-node system, and the results show that the proposed method improves system damping and enhances stability. This method offers an easy-to-implement solution for engineers seeking to optimize PSS parameters in power systems.

关键词：

来源：评论

学校读者我要写书评

暂无评论

Optimized Coordinated control of DAB and Three-Phase Inverter Based Cascaded System with Active Damping 5th

Optimized Coordinated Control of DAB and Three-Phase Inverte...

引用

International Top-Level Forum on Engineering Science and Technology Development Strategy and 5th PURPLE MOUNTAIN FORUM on Smart Grid Protection and control, PMF2020

作者： Li, Jicheng Yang, Xiaofeng Zhou, Bingkai Nong, Renbiao School of Electrical Engineering Beijing Jiaotong University Beijing100044 China State Key Laboratory of Operation and Control of Renewable Energy and Storage Systems China Electric Power Research Institute Beijing China

ISBN: (纸本)9789811597459

As for the dual active bridge (DAB) converter and three-phase inverter based cascaded system, the stability is affected by the interaction between output and input impedance of the two sub-converters. The small-signal models of both DAB and three-phase inverter are firstly derived for stability analysis. Based on the improved Middlebrook criterion, this paper analyzes the difference in impedance characteristics between forward and reverse power flows, and the parameters that affect the stability of system. Then an optimized coordinated control strategy with active damping is proposed to improve the stability under forward power flow. The theoretical analysis results show that the optimized coordinated control can reduce the voltage fluctuation of the DC-link and achieve smooth transitions during sudden power changes and reversals, thereby improving the dynamic response of the system. Furthermore, robustness of the system is enhanced without changing proportional integral (PI) parameters and the circuit hardware. Finally, the optimized coordinated control is compared with conventional control by simulation results. © 2021, Springer Nature Singapore Pte Ltd.

关键词： Damping

来源：评论

学校读者我要写书评

暂无评论

Frequency-Domain Adaptive Parametric Model Order Reduction Method for Oscillatory Stability Analysis on Multi-Converter-Fed systems

引用

Journal of Modern Power systems and Clean energy 2024年第3期13卷 802-814页

作者： Xun Jiang Meiqin Mao Liuchen Chang Bao Xie Haijiao Wang Nikos D. Hatziargyriou Research Center for Photovoltaic System Engineering of Ministry of Education Hefei University of Technology Hefei China University of New Brunswick Fredericton New Brunswick Canada State Key Laboratory of Operation and Control of Renewable Energy & Storage Systems (China Electric Power Research Institute) Beijing China National Technical University of Athens Athens Greece

The oscillatory stability analysis of multi-converter-fed systems (MCFSs) with modest computational resources needs a precise parametric reduced-order impedance model (PROIM). However, the traditional Krylov subspace based parametric model order reduction (KS-PMOR) method has difficulty in building precise PROIM for MCFSs. This is because the factors related to the errors of PROIM are complicated and coupled. To fill this gap, the factors associated with the accuracy of the KS-PMOR method are estimated by defining three indicators: the convergence error, cumulative error, and rank of projection matrix. Using the three indicators, a frequency-domain adaptive parametric model order reduction (FDA-PMOR) method is developed to form the precise PROIM of MCFSs for the accurate and fast oscillatory stability analysis. The accuracy of the obtained PROIM using the proposed FDA-PMOR method and its efficiency in actual oscillatory stability analysis are validated by three MCFSs with different scales, i. e., a small-scale MCFS with four paralleled converter-based renewable energy generators (CREGs), a real-time simulation-based MCFS with eighteen paralleled CREGs, and a larger MCFS with ninety paralleled CREGs.

关键词： Impedance Power system stability Interpolation Computational modeling Reduced order systems Parametric statistics Accuracy Frequency-domain analysis Adaptation models Vectors

来源：评论

学校读者我要写书评

暂无评论

Stackelberg Game Optimal Scheduling of User-Side energy storage Considering Source-Load Uncertainty

Stackelberg Game Optimal Scheduling of User-Side Energy Stor...

引用

International Joint Conference on energy, Electrical and Power Engineering, CoEEPE 2021

作者： Luo, Kui Guo, Zhidong Rui, Tao Hu, Cungang State Key Laboratory of Operation and Control of Renewable Energy & Storage Systems China Electric Power Research Institute Beijing100000 China School of Electrical Engineering and Automation Anhui University Hefei230601 China Engineering Research Center of Power Quality Ministry of Education Anhui University Hefei230601 China

ISBN: (纸本)9789811919213

Aiming at the distributed energy storage optimal scheduling problem considering source load uncertainty, a user side energy storage stochastic optimal scheduling strategy considering master–slave game is proposed in this paper. This method comprehensively considers the uncertainty of photovoltaic (PV) power generation and user side load, and constructs a Stackelberg game model with distribution network operators as leaders and user side as followers. By solving the internal optimal electricity price, the electric energy interaction between the user side and distribution network operator (DNO) is stimulated. While improving the operation economy of both sides of the game, promote the consumption of renewable energy at the distribution network side. At the same time, the optimal scheduling plan of user side energy storage is obtained. The example results show that the optimization method proposed in this paper can effectively adapt to PV power consumption and improve the operation economy and stability of distribution network operators and users. © 2022, The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd.

关键词： Scheduling

来源：评论

学校读者我要写书评

暂无评论

Analysis of Cyber Attacks on Wind Power Generation systems in Damping Inter-area Oscillations of Power systems 5

Analysis of Cyber Attacks on Wind Power Generation Systems i...

引用

5th IEEE Conference on energy Internet and energy System Integration, EI2 2021

作者： He, Guoqing Wu, Q.H. Liu, Yang Xiahou, Kaishun State Key Laboratory of Operation and Control of Renewable Energy & Storage Systems China Electric Power Research Institute Beijing China School of Electric Power Engineering South China University of Technology Guangzhou China

ISBN: (纸本)9781665434256

With the application of damping controllers developed using remote feedback signals provided by phasor measurement unit (PMU) and wida-area measurement system (WAMS), the wind power generation system (WPGS) can damp the inter-area oscillations of power system. Nevertheless, the damping control system of WPGS may suffer from malicious cyber attacks, which will deteriorate the performance of WPGS and even destabilize the power system operation. This paper considers the various types of cyber attacks, including false data injection attack (FDIA), time-delay attack (TDA), denial of service (DoS) attack, coordinated cyber-physical attack (CCPA), and analyzes the effects of these cyber attacks on WPGS in damping inter-area oscillations of power system. Simulation studies are carried out on a two-area four-machine power system integrated with WPGS to investigate the cyber security of WPGS. © 2021 IEEE

关键词： Cyber attacks

来源：评论

学校读者我要写书评

暂无评论

Hybrid Impedance Reshaping Method of Grid-Connected Inverters in Weak Grid

Hybrid Impedance Reshaping Method of Grid-Connected Inverter...

引用

Power Electronics and Power System Conference (PEPSC)

作者： Weike Zheng Haijiao Wang Bao Xie Meiqin Mao State Key Laboratory of Operation and Control of Renewable Energy & Storage Systems China Electric Power Research Institute Beijing China Photovoltaic System Engineering Research Center of the Ministry of Education Hefei University of Technology Hefei China

Both the phase-locked loop (PLL) and the common coupling point (PCC) voltage feedforward may have impacts on the inverter system stability in weak grid. Therefore, a hybrid impedance reshaping control strategy is proposed in the paper. Firstly, the inverter impedance model is established. Next, the system stability is analyzed under weak grid, reflecting on the influence of PLL and the PCC voltage feedforward. Then, to improve the inverter system stability, the band-pass filter is added to the feedforward branch of PCC voltage, since it can attenuate the influence of unstable factors. Moreover, a new phase-locked loop structure containing a first-order decoupled complex filter is proposed, taking into account the fundamental positive voltage extraction characteristics of the first-order decoupled complex filter. The parameters of the hybrid impedance reshaping strategy are designed in detail. Finally, simulation is carried out to prove the theory analysis and hybrid impedance reshaping strategy in the paper.

关键词：

来源：评论

学校读者我要写书评

暂无评论

Fault ride-through performance evaluation method of photovoltaic power station based on accurate model

Fault ride-through performance evaluation method of photovol...

引用

12th International Conference on renewable Power Generation (RPG 2023)

作者： X. Lin Q. Xu B. Wu J. Zhang School of Electrical Engineering Southeast University Nanjing People's Republic of China State Key Laboratory of Operation and Control of Renewable Energy & Storage Systems(China Electric Power Research Institute) Nanjing People's Republic of China

Fault ride-through capability is an important indicator of grid-connected performance of photovoltaic power stations, and a fault ride-through performance evaluation method based on accurate model is proposed to view the difficulties brought by the detection of fault ride-through capacity caused by the large scale of the whole station and many power generation units. Firstly, the fault ride-through performance test of the PV inverter is carried out, detailed response performance data is obtained, and the PV inverter model is established based on the test data. Then the inverter is extracted on site at the photovoltaic power station to check its fault ride-through performance consistently; On this basis, combined with the electrical structure of the power station, the photovoltaic power station model is established, and the fault ride-through performance of the power station is evaluated by modeling various fault conditions. Finally, this method is used to evaluate the fault ride-through performance of typical photovoltaic power stations, and the results show the effectiveness and availability of the proposed method.

关键词：

来源：评论

学校读者我要写书评

暂无评论

An Improved Shrunken Primal-Dual Subgradient (i-SPDS) algorithm for Optimization in Large-Scale Networked Environment 2

An Improved Shrunken Primal-Dual Subgradient (i-SPDS) algori...

引用

2020 2nd International Conference on energy, Power, Environment and Computer Application, ICEPECA 2020

作者： Luo, Kui Wang, Qinghua State Key Laboratory of Operation and Control of Renewable Energy and Storage System China Electric Power Research Institute Beijing100192 China State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources North China Electric Power University Beijing102206 China

Large-scale optimization in networked environment is challenged by scalability. To address this challenge, this paper sets its aim on developing algorithms for optimization problems with strongly coupled objective function and global constraints. As a radical improvement of the state-of-the-art algorithms, this paper develops an improved shrunken-primal-dual subgradient (i-SPDS) algorithm that establishes fast convergence and eliminates optimality gap. The developed algorithm is rather generic in that it can be readily implemented in any applications that involve large-scale networked environment. Simulations are conducted to demonstrate the efficacy and efficiency of the proposed i-SPDS. © Published under licence by IOP Publishing Ltd.

关键词： energy resources

来源：评论

学校读者我要写书评

暂无评论

Improved Deadbeat Predictive control for MMC Based Flexible Multi-state Switch

Improved Deadbeat Predictive Control for MMC Based Flexible ...

引用

Smart Power & Internet energy systems (SPIES), International Conference on

作者： Zixun Pan Xiaofeng Yang Chenyang Cui Yanbin Zhang Kaifeng Wang State Key Laboratory of Operation and Control of Renewable Energy & Storage Systems (China Electric Power Research Institute) School of Electrical Engineering Beijing Jiaotong University Beijing China School of Electrical Engineering Beijing Jiaotong University Beijing China State Key Laboratory of Operation and Control of Renewable Energy & Storage Systems China Electric Power Research Institute Beijing China

In recent years, modular multilevel converter based flexible multi-state switch (MMC-FMS) has been used to achieve flexible power optimization among different grids. In order to improve the dynamic performance of traditional vector double-loop control, an improved deadbeat predictive control suitable for MMC-FMS is proposed in this paper. Firstly, the mathematical model of MMC for FMS single-terminal converter station is established. Based on the discrete mathematical model with Tustin method, the improved deadbeat predictive control algorithm is derived. Finally, the simulation is carried out under different application scenarios of MMC-FMS. The results show that the proposed control strategy can effectively simplify the inner current loop control of FMS, improve the system dynamic performance and current tracking accuracy.

关键词： Tracking loops Frequency modulation System dynamics Simulation Switches control systems Prediction algorithms

来源：评论

学校读者我要写书评

暂无评论

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案：

请选择收藏分类：

通借通还

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：