检索结果-内蒙古大学图书馆

2016 IEEE PES Asia Pacific Power and energy Engineering Conference, APPEEC 2016

作者： Tian, Xinshou Wang, Weisheng Yan, Li Tang, Haiyan Chi, Yongning Wang, Yukun Zhen, Wang State Key Laboratory of Operation and Control of Renewable Energy and Storage Systems China Electric Power Research Institute Beijing100192 China

ISBN: (纸本)9781509054183

The mechanical parts of doubly fed induction generators (DFIGs) is decoupled from electrical parts, which makes the output active power hard to respond the frequency change of power grid, it becomes a new challenge to frequency stability of power grid with large scale wind power grid integration. A coordinative control strategy of virtual inertia and primary frequency of DFIGs based wind farms is given, and its principle is analyzed in the paper. The primary frequency control is a slow process, which is mainly implemented by control level of DFIGs based wind farms, and the DFIGs is cooperative. The virtual inertia control is a fast process, which is only implemented by control level of DFIGs. The theoretical analysis and time domain simulation show that the proposed control strategy can guarantee the frequency stability of power grid with large scale wind power integration. © 2016 IEEE.

关键词： Wind farm

来源：评论

学校读者我要写书评

暂无评论

Impact of fault-ride-through strategy on dynamic characteristics of photovoltaic power plant

引用

The Journal of Engineering 2017年第13期2017卷 2130-2134页

作者： Ge Luming Qu Linan Zhu Lingzhi Chen Ning Zhang Lei China Electric Power Research Institute Nanjing Jiangsu Province People's Republic of China State Key Laboratory of Operation and Control of Renewable Energy & Storage Systems China Electric Power Research Institute Beijing People's Republic of China

The large-scale grid-connected photovoltaic (PV) power plant is growing rapidly these years. For power system with high penetration of PV generation, the dynamic characteristic analysis of PV plant is a key factor in system stability studies. In this study, the impact of fault-ride-through (FRT) strategy on dynamic characteristics of PV plant is studied. First, the mathematic relationship between plant active/reactive power, point of interconnection voltage and inverter current is deduced. Second, the impact of dynamic reactive current support logic, active current limit logic and active current restore logic is investigated, respectively. Finally, the dynamic response of PV plant and synchronous generator is compared. The simulation results show that PV plant is an important controllable power source, and a reasonable FRT strategy can improve power system stability.

关键词： power system stability photovoltaic power systems synchronous generators power generation faults invertors power grids reactive power dynamic characteristics photovoltaic power plant PV generation dynamic characteristic analysis PV plant system stability studies dynamic reactive current support logic active current limit logic active current restore logic dynamic response power system stability plant active-reactive power FRT strategy point of interconnection voltage fault-ride-through strategy inverter current synchronous generator

来源：评论

学校读者我要写书评

暂无评论

Modeling Study of a Summertime Rainstorm Process Over North China Plain with a Meso-scale Meteorological Model

Modeling Study of a Summertime Rainstorm Process Over North ...

引用

2017 International Conference on Mathematics, Modelling and Simulation Technologies and Applications（MMSTA 2017)

作者： Run-fang WANG Zong-peng SONG Tian-liang ZHAO Shuang-long JIN Ju HU Han DING Collaborative Innovation Center on Forecast and Evaluation of Meteorological Disasters Key Laboratory for Aerosol-Cloud-Precipitation of China Meteorological AdministrationNanjing University of Information Science and Technology Renewable Energy Research Center China Electric Power Research Institute(CEPRI) State Key Laboratory of Operation and Control of Renewable Energy & Storage Systems

Using meso-scale meteorological model FDDA,this study presented a high-definition modeling of a rainstorm process during July 19-21,2016 in the North China *** meso-scale meteorological model captured the precipitation distribution of the observed rainstorm over North China Plain,showing that the FDDA model has strong ability to simulate and forecast *** modeling study also revealed the mechanism of rainfall formation with 3-dimensional structures of atmospheric *** subtropical high pressure peripheral warm and wet air flow and the coexistence of cold shear affect the development of convection in the rainfall *** to the vapor transport of low-level jet stream,the rainfall area has sufficient water vapor supply.A convergence of the south-easterly and northerly airstreams triggered a strong convection for the summer rainstorm in North China *** study provided us the valuable information for further development of a high-definition modeling of rainstorm process.

关键词： Rainstorm Modeling North China Plain Synoptic Pattern

来源：评论

学校读者我要写书评

暂无评论

Wind turbine model validation based on state interval and error calculation

引用

The Journal of Engineering 2017年第13期2017卷 762-767页

作者： Qing Li Jing He Shiyao Qin Xiaoning Shi State Key Laboratory of Operation and Control of Renewable Energy & Storage Systems China Electric Power Research Institute Beijing People's Republic of China CEPRI Inspection & Certification (Beijing) Co. Ltd Beijing People's Republic of China State Key Laboratory of Advanced Transmission Technology Global Energy Interconnetion Research Institute Beijing People's Republic of China

In order to simulate and evaluate wind farm low-voltage ride through capability, wind turbine should be modelled and simulated as real-life system operation. In this paper, a validation method based on state interval and error calculation is proposed. The model validation specified in domestic and international standards is introduced. The necessity of steady- and transient-state interval definition is analysed through wind turbine transient behaviour research. Meanwhile, allowed tolerances are studied by wind farm simulation and comparison, using wind turbine models with different behaviours. A double-fed induction generator (DFIG) wind turbine model is validated and the results show that the proposed method with different tolerance in steady- and transient-state intervals is suitable for wind turbine model validation.

关键词： wind turbines power supply quality asynchronous generators transient-state interval DFIG wind turbine model steady-state interval definition transient-state interval definition domestic standard international standard real-life system operation wind farm low-voltage ride through capability error calculation state interval wind turbine model validation

来源：评论

学校读者我要写书评

暂无评论

Coordinated control strategy of reactive power for large-scale wind power transmission by LCC-HVDC links

引用

The Journal of Engineering 2017年第13期2017卷 1082-1086页

作者： Wang Zhibing Xu Yang Wang Xitian State Key Laboratory of Operation and Control of Renewable Energy & Storage Systems China Electric Power Research Institute Beijing 100192 People's Republic of China Department of Electrical Engineering Shanghai Jiao Tong University Shanghai 200240 People's Republic of China

The intermittence and fluctuation of outputs of large-scale wind farms lead to significant problems in power transmission system by line-commuted converter high-voltage direct current (LCC-HVDC) links. Traditional reactive power compensation devices such as AC filters are not capable of adjusting reactive power balance continuously. This paper presents a coordinated reactive power control strategy to realise continuous adjustment. A synchronous condenser (SC) is applied in the DC converter station to cooperate with AC filters. The capacity of the SC is determined by the minimum capacity and dead zone of the AC filter unit, and cost saving is also taken into account. While power outputs of wind farms fluctuate, the setting value of DC power gets changed. The SC responses rapidly to reduce the reactive power exchange. When the reactive power demand is beyond the capacity of the SC, one AC filter unit operates and the SC readjusts to maintain the reactive power balance. The proposed control strategy is validated by simulation in PSCAD/EMTDC.

关键词： reactive power control wind power plants power transmission control HVDC power transmission HVDC power convertors commutation compensation power filters power generation control PSCAD-EMTDC reactive power balancing reactive power exchange reduction AC filter unit SC DC converter station synchronous condenser reactive power compensation device line-commuted converter high-voltage direct current link large-scale wind farm LCC-HVDC link large-scale wind power transmission system coordinated reactive power control strategy

来源：评论

学校读者我要写书评

暂无评论

Virtual resistor circuit-based control strategy of STATCOM during network unbalance

引用

The Journal of Engineering 2017年第13期2017卷 1804-1808页

作者： Qiongfeng Zhu Qing Li Jinping Zhang Peng Cheng State Key Laboratory of Operation and Control of Renewable Energy & Storage Systems China Electric Power Research Institute Beijing 100192 People's Republic of China CEPRI Inspection & Certification (Beijing) Co. Ltd Beijing 100192 People's Republic of China

Static synchronous compensators (STATCOMs) have been widely used for the reactive power and voltage regulation in the renewable energy field. The STATCOM could not only regulate the positive-sequence voltage component, but also suppress the negative-sequence voltage by injecting the negative sequence current when the grid voltage is unbalanced. Aiming at diminishing the negative sequence voltage, the control strategy based on the symmetrical virtual resistor circuit is proposed in this study. The strategy is on the assumption that there are parallel virtual resistors connected to the point of interconnection (POI) of the STATCOM. It is theoretically proved that the negative sequence voltage can be eliminated when the current of the virtual resistors is balanced. Therefore, the negative sequence voltage can be eliminated by making the current of virtual resistors balanced. As the resistors are virtual in the real circuit, the voltage of the POI of the STATCOM is used in the input of the negative-sequence current control loop instead of the current of the virtual resistors as the feedbacks. The signal of the ac voltages and currents of the STATCOM are only needed in this strategy which simplifies the system design. In the end, the simulation results are presented to validate the correctness and the effectiveness of the proposed control strategy.

关键词： power grids static VAr compensators resistors feedback voltage control voltage regulators electric current control virtual resistor circuit-based control strategy STATCOM positive-sequence voltage component negative sequence current grid voltage negative sequence voltage symmetrical virtual resistor circuit parallel virtual resistors negative-sequence current control loop AC voltages negative-sequence voltage component point of interconnection

来源：评论

学校读者我要写书评

暂无评论

Investigating SSO risks of large-scale photovoltaic generation with the series compensated transmission lines

引用

The Journal of Engineering 2017年第13期2017卷 2048-2052页

作者： Haiyan Tang Guofei Lu Xiao Yu Yongning Chi Yan Li Wuhui Chen State Key Laboratory of Operation and Control of Renewable Energy & Storage Systems China Electric Power Research Institute Beijing 100192 People's Republic of China School of Electrical and Information Engineering Jiangsu University Zhenjiang 212013 Jiangsu People's Republic of China

With the increasing of photovoltaic (PV) installed capacity, large-scaled development of PV and centralized grid connection has become an important form of solar energy resources utilization. The series compensated transmission lines could enhance the long-distance transmission capacity of large-scale PV plants. Some PV plants in China are planned to adopt this technology. However, series capacitor compensation transmission lines are one of important sources of sub-synchronous oscillation (SSO). This SSO risk is a potential threat for the operation of PV plants and the stability of the utility grid. It is urgent to investigate the SSO risk of large-scale PV generation with the series compensated transmission lines. This study first developed a dynamic model of large-scale PV generation connected to the utility grid with series compensated lines on PSCAD platform. The PV dynamic model is built with detailed circuits of the power converter. Using the proposed model, the interaction of PV inverter control parameters, reactive power compensation device and the series compensation degree is investigated in detail. Then, the dominant parameters that affect the SSO are identified. From the results above, the SSO damping expression is deduced to reveal the SSO performance of large-scale PV generation with series compensated transmission lines.

关键词： power grids photovoltaic power systems power generation control invertors damping power transmission lines SSO risk large-scale photovoltaic generation series compensated transmission lines photovoltaic installed capacity long-distance transmission capacity large-scale PV generation bases series capacitor compensation transmission lines PV dynamic model series compensation degree

来源：评论

学校读者我要写书评

暂无评论

Parameters tuning of doubly fed induction generator systems with static synchronous compensator based on Chaos orthogonal particle swarm optimization

引用

IOP Conference Series: Earth and Environmental Science 2018年第1期188卷

作者： W Wei L J Shi J F Shi K M Lin F Wu W G He C Wang College of Energy and Electrical Engineering Hohai University Nanjing 211100 Jiangsu Province China State Key Laboratory of Operation and Control of Renewable Energy & Storage Systems China Electric Power Research Institute Nanjing 210003 Jiangsu Province China

For Double-Fed Induction Generator (DFIG) wind farm systems with Static Synchronous Compensator (STATCOM), by optimizing multiple proportional integral (PI) controllers parameters of DFIG and STATCOM, the performance of the wind power system is significantly improved and the voltage of point of common coupling (PCC) is quickly restored when a low voltage due to a grid fault. Chaos orthogonal particle swarm optimization is proposed to make the integral time absolute error (ITAE) of active power of DFIG, DC-link voltage of converter of DFIG and voltage of PCC minimum. The orthogonal method is used to get the range of parameters and identify the weight relations between different indicators. And then the chaos algorithm is used to initialize the algorithm. Finally, the particle swarm optimization (PSO) can effectively improve the efficiency of the optimization. Based on MATLAB/Simulink, the simulations of wind farm containing STATCOM incorporated into the infinite system under different conditions both show that the application optimized PI controllers have good dynamic performance, which validates the effectiveness of the optimization algorithm.

关键词：

来源：评论

学校读者我要写书评

暂无评论

Research on optimal investment path of transmission corridor under the global energy Internet

引用

IOP Conference Series: Earth and Environmental Science 2018年第5期121卷

作者： Yuehui Huang Pai Li Qi Wang Jichun Liu Han Gao State Key Laboratory of Operation and Control of Renewable Energy & Storage Systems China Electric Power Research Institute. Beijing 100192 China School of Electrical Engineering and Information Sichuan University Chengdu 610065 China.

Under the background of the global energy Internet, the investment planning of transmission corridor from XinJiang to Germany is studied in this article, which passes through four countries: Kazakhstan, Russia, Belarus and Poland. Taking the specific situation of different countries into account, including the length of transmission line, unit construction cost, completion time, transmission price, state tariff, inflation rate and so on, this paper constructed a power transmission investment model. Finally, the dynamic programming method is used to simulate the example, and the optimal strategies under different objective functions are obtained.

关键词：

来源：评论

学校读者我要写书评

暂无评论

Study on generation investment decision-making considering multi-agent benefit for global energy internet

引用

IOP Conference Series: Earth and Environmental Science 2018年第5期121卷

作者： Pai Li Yuehui Huang Yanbing Jia Jichun Liu Yi Niu State Key Laboratory of Operation and Control of Renewable Energy & Storage Systems China Electric Power Research Institute. Beijing 100192 China School of Electrical Engineering and Information Sichuan University Chengdu 610065 China.

Abstract . This article has studies on the generation investment decision in the background of global energy interconnection. Generation investment decision model considering the multiagent benefit is proposed. Under the back-ground of global energy Interconnection, generation investors in different clean energy base not only compete with other investors, but also facing being chosen by the power of the central area, therefor, constructing generation investment decision model considering multiagent benefit can be close to meet the interests demands. Using game theory, the complete information game model is adopted to solve the strategies of different subjects in equilibrium state.

关键词：

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：