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“紫金论电”2017智能电网保护和运行控制国际学术研讨会

作者： Shan Xin Li Jun Xu Xi Lu Jinjun NARI Group Corporation(State Grid Electric Power Research Institute) NanjingJiangsu Province211000China NARI Technology Co. Ltd.NanjingJiangsu Province211000China State Key Laboratory of Smart Gird Protection and Control NanjingJiangsu Province211000China

With the rapid construction of UHV AC/DC power grid,the integration characteristics of power grid are becoming more and more prominent,and real-time operation control of dispatching is significantly becoming more and more *** existing monitoring and control model based on the system model data cannot meet the requirements for the development of UHV power *** on the existing achievements of dispatching automation system,the general goal and framework of the trans-regional cooperative disposal of UHV interconnected power grid are put forward,and the key technologies are analyzed in four aspects: situation awareness,fault location,joint disposal and cooperative control to provide reference and example for follow-up construction for real-time control and support system for the dispatching of UHV power grid.

关键词： UHV situation awareness cooperative disposal source grid load wide area graphic browsing DC fault diagnosis

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High-accurate estimation method of sub-synchronous and super-synchronous harmonic parameters on PMU

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The Journal of Engineering 2017年第13期2017卷 1275-1279页

作者： Yong Tan Rong Chen Meng Wang Min Zhang Mingguo Hou Nari Group Corporation (State Grid Electric Power Research Institute) Nanjing 21106 People's Republic of China NARI Technology Development Co. Ltd Nanjing 211061 People's Republic of China State Key Laboratory of Smart Grid Protection and Control Nanjing 210061 People's Republic of China School of Rail Transportation Soochow University Suzhou 215131 People's Republic of China

With the rapid development of renewable energy power generations, AC/DC transmissions and static compensations etc., power electronic technology has been widely applied in power system. As traditional power equipment is replaced by a large number of power electronic devices, the disturbances such as harmonic interference and sub-synchronous oscillation are more frequently. In order to detect the sub-synchronous oscillation in power system in time, and take measures to ensure the safety and stability of power system, this article analyses the algorithm principle of the phasor measurement unit (PMU) and the communication architecture of wide area measurement system (WAMS)/PMU system. According to the IEEE Std C37.118-2011 standard, it elaborates the problems and the limitations existing in the monitoring of sub-synchronous and super-synchronous harmonic parameters on WAMS. On the basis of the above, a method of online identification and alarm for the sub-synchronous and super-synchronous harmonic parameters on PMU device is proposed. Combined with the fast Fourier transform spectrum correction theory, the high-accuracy identification method of distributed sub-synchronous and super-synchronous harmonic parameter is realised. The feasibility and accuracy of the method is verified by simulation experiments.

关键词： phasor measurement fast Fourier transforms power electronics IEEE standards power system harmonics electrical safety power system parameter estimation power system stability distributed sub-synchronous harmonic parameter fast Fourier transform spectrum correction theory online alarm online parameter identification IEEE Std C37.118-2011 standard WAMS-PMU system communication architecture phasor measurement unit power system safety wide area measurement system power system stability high-accurate estimation method super-synchronous harmonic parameter sub-synchronous oscillation power electronic devices

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Approach for Studying the Impact of Communication Failures on Power grid

Approach for Studying the Impact of Communication Failures o...

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IEEE Power and Energy Society General Meeting

作者： Yusheng Xue Ming Ni Wenjie Yu NARI Technology Inc. and State Key Laboratory of Smart Grid Protection and Control

ISBN: (纸本)9781509041695

In smart grid, a strong communication network plays a very important role, which makes the power grid more controllable and observable. It is a very tough task to study the mutual impact between these two systems due to their different characteristics. This paper proposes a generic and systematic approach for quantitatively studying the impact of communication failures on power grid's measurement and control functions. And an example is used to illustrate how to apply the approach in studying the impact of communication failure on a stability control system.

关键词： Communication failure Communication interruption Power system control Stability control system control system stability Power grids Power system control control function Communication Research networks(communications)

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Design of Rated Power control Strategy of Wind Turbine Based on Particle Swarm Optimization

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IOP Conference Series: Earth and Environmental Science 2018年第1期192卷

作者： YC Yang Y Liu P Song Y Cui Y Bai Department of Control and Computer Engineering North China Electric Power University Beijing 102206 China North China Electric Power Research Institute Co. Ltd. Smart Grid and New Energy Institute Beijing 100045 China Grid-connected Operation Technology for Wind-Solar-Storage Hybrid System State Grid Corporation Key Laboratory

In view of the reduction of wind turbine operating efficiency caused by wind speed measurement errors, this paper proposes a rated power control strategy for wind turbines for practical applications; in order to solve the problem that the pitch PI controller parameters of wind turbines are not easy to calculate and tune in the process of design and optimization, this paper proposes a complete set of methods for parameter tuning of pitch control PI controllers for wind turbines. This paper establishes a Bladed-Matlab co-simulation platform, uses Bladed software to build a complete model of a 2MW wind turbine, and designs a rated power control strategy for wind turbines. After the wind turbine model is linearized at different wind speed points by applying Bladed software, the linearized model for PI parameter tuning is obtained, and then the optimal PI parameters for each wind speed point are set by using particle swarm algorithm. According to the variation law between the PI parameters and the pitch angle obtained before, the PI parameters are adjusted adaptively by variable gain PI control. The simulation results show the superiority of the control strategy and parameter tuning method used in this paper.

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Production simulation of power systems considering the forecast error of renewable energy

Production simulation of power systems considering the forec...

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

作者： Kun, Ding Ningbo, Wang Xie, Haipeng Bie, Zhaohong Laboratory of Wind Power Integration Operation and Control Gansu Electric Power Corporation Wind Power Technology Center Lanzhou China State Key Lab. of Elec. Insulation and Pwr. Equip. and Smart Grid Key Laboratory of Shaanxi Province Xi'an Jiaotong University Xi'an China

ISBN: (纸本)9781509054183

A short-term stochastic production simulation method considering the forecast error of renewable sources power is proposed to focus on the issue that conventional production simulation method is incapable of depicting the forecast error of renewable sources power. The proposed method contains two hierarchies, i.e. the day-ahead simulation and the real-time simulation. As for day-ahead simulation, a day-ahead scheduling of conventional units and renewable energy plants is determined by solving a unit commitment model on the basis of forecasted renewable sources power and load profiles. Real-time simulation is the supplement to day-ahead simulation and it corrects the results in day-ahead simulation. The validity of the proposed method is proved with a real power grid in Northwest China. Case studies show that conventional units may be still the major resource of power grids although these installed capacity is no larger than renewable energy resources. Meanwhile, forecast errors actually impact reliability of power systems. © 2016 IEEE.

关键词： Renewable energy resources

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Power system cyber attack and its defense

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Dianli Xitong Zidonghua/Automation of Electric Power Systems 2016年第5期40卷 148-151页

作者： Ni, Ming Yan, Jie Bo, Rui Tang, Yi NARI Technology Co. Ltd. Nanjing China State Key Laboratory of Smart Grid Protection and Control Nanjing China Midcontinent Independent System Operator Minneapolis United States School of Electrical Engineering Southeast University Nanjing China

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Zonal Reserve Model for Renewable Power Integrated System

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Energy Procedia 2016年 103卷 177-182页

作者： Fan Liu Shiyu Liu Yinguo Yang Yanwei Wang Tao Ding Zhaohong Bie State Key Laboratory of Electrical Insulation and Power Equipment Smart Grid Key Laboratory of Shaanxi Province Xi’an Jiaotong University Xi’an 710049 China Power Dispatch Control Centre of Guangdong Power Grid Corp.Ltd 510000 China

Considering transmission capabilities and renewable integration, zonal regulation and spinning reserve requirements are discussed to handle uncertainty of load and renewable energy as well as any N-1 outage. A new zonal reserve model is proposed in the paper including reserve dispatched time constraints, zonal reserve requirements and network security constraints using the method of chance constrained programming. Analysis on the IEEE 39 system demonstrates the model can schedule zonal energy, regulation and spinning reserve in an economic way for a renewable power integrated system.

关键词： Reserve optimization Zonal reserve requirements Load uncertainty Renewable uncertainty N-1 outage

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An analytic method of calculating rotor and stator short-circuit current of DFIG with RSC control

An analytic method of calculating rotor and stator short-cir...

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IEEE PES Asia-Pacific Power and Energy Engineering Conference (APPEEC)

作者： Jinhua Zhang Baohui Zhang Bingqing Wu Jin Wang Shaanxi Key Laboratory of Smart Grid Xi'an Jiaotong University Xi'an China Electric Power Dispatching and Control Center State Grid Shandong Electric Power Company Jinan China

ISBN: (纸本)9781509054190

To investigate the fault features of doubly-fed induction generator (DFIG) with rotor side converter (RSC) control, an analytic method of calculating the DFIG short-circuit current is proposed in this paper. Based on the space vector model of DFIG with RSC control, the dynamic equation of rotor current reflecting both the machine transient process and the impact of RSC control is derived, and analytic expressions of rotor and stator fault current in time-domain are obtained. The calculation result is certified by being compared with the PSCAD simulation result. According to the derived analytic expressions, the components of the DFIG short-circuit current are analyzed. It indicates that the machine terminal voltage dip of DFIG, the current reference value, the orientation angle, and the proportional-integral value of RSC controller are main factors influencing the short-circuit current characteristics.

关键词： Damping Indexes Power grids Frequency control Time-frequency analysis Stators

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Low-Carbon Economic Dispatch considering carbon capture unit and demand response under carbon trading

Low-Carbon Economic Dispatch considering carbon capture unit...

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IEEE PES Asia-Pacific Power and Energy Engineering Conference (APPEEC)

作者： Renjun Zhou Yishu Li Jiagan Sun Hao Zhang Duli Liu Smart Grids Operation and Control Key Laboratory Changsha University of Science & Technology Changsha Hunan China State Grid Chongqing Changshou Power Company Chongqing China

ISBN: (纸本)9781509054190

The power system needs to coordinate the economic dispatch and the carbon emission under the carbon market. The CO 2 emission characteristics of different generation resources arc analyzed, then generation resources are divided into three categories: high , low and zero carbon emission. Considering the carbon capture unit and the demand response, the Low-Carbon Economic Dispatch model is established with carbon trading cost included in the objective function. To take the uncertainty of carbon price caused by multiple uncertain factors into consideration, a new low-carbon economic dispatch model is built, which uses Conditional Value-at-Risk(CVaR) method to recalculate the carbon trading cost. The YALMIP software is applied to solve the proposed model. The case studies show that low-carbon economic dispatch can improve the utilization of low-carbon and zero-carbon generation resources under carbon trading framework and the dispatch results are affected by the changes of carbon price greatly. Furthermore, with confidence level of carbon price uncertainty rising, the dispatch costs and carbon emissions increase accordingly.

关键词： Carbon dioxide Carbon Load management Economics Uncertainty Energy consumption Dispatching

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Production simulation of power systems considering the forecast error of renewable energy

Production simulation of power systems considering the forec...

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IEEE PES Asia-Pacific Power and Energy Engineering Conference (APPEEC)

作者： Kun Ding Ningbo Wang Haipeng Xie Zhaohong Bie Laboratory of Wind Power Integration Operation and Control Gansu Electric Power Corporation Wind Power Technology Center Lanzhou China State Key Laboratory of Electrical Insulation and Power Equipment & Smart Grid Xi'an Jiaotong University Xi'an China

ISBN: (纸本)9781509054190

关键词： Load modeling Renewable energy sources Production Autoregressive processes Predictive models Power grids

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