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Gongzheng L.,Suzhou University | Gongzheng L.,Shanghai University | Yuejuan W.,Jiangsu Suzhou Power Supply Company
International Journal of Digital Content Technology and its Applications | Year: 2011

Cellular Automata (CA) is a model for describing state evolution system with local communication. It can be used to model artificial life and traffic flow etc. The expression ability of the Cellular Automata is powerful. But the property analysis of it is in general a hard problem. In this paper, the model checker NuSMV is used to verify the reachability and safety of the Cellular Automata. The algorithm for translating the Cellular Automata into Global State Transition Diagram is provided, and the algorithm for model checking correctness of the property of the Global State Transition Diagram is also given. In the last, an example is taken to explain the method.


Shi L.,Hohai University | Xu Q.,Nanjing Southeast University | Ma X.,Jiangsu Suzhou Power Supply Company | Zhang L.,Jiangsu Electric Power Company | Tang G.,Nanjing Southeast University
Taiyangneng Xuebao/Acta Energiae Solaris Sinica | Year: 2012

For the issue of no guarantee of the robustness of the FESS (Flywheel Energy Storage System)-based stabilizer designed at one of the typical operation, An improved method was proposed to select the best installing location, damping control loop, feedback signal robustly and to tune FESS-based stabilizer parameters by taking into account multiple operations. Based on linearized model with FESS and application of Damping Torque Analysis (DTA), the maximum of all of the minimum Damping Torque Indices (DTI) under multi-operation conditions is the index of selection FESS installing location, damping control loop and feedback signal, and the operation of minimum changing real of eigenvalue is the condition to tune FESS-based stabilizer parameters. And the results of a four-machine power system with FESS showed that power system oscillations are suppressed effectively by FESS-based stabilizer designed by the method under multiple operations. And also the results showed that the method proposed is effective and robust.


Lin X.,Hohai University | Dong X.,Jiangsu Suzhou Power Supply Company | Lu Y.,Nanjing Southeast University | Wei Z.,Hohai University | Liu Y.,East China Grid Company
Australian Journal of Electrical and Electronics Engineering | Year: 2010

The paper proposes a neto approach based on C4.5 decision-tree for islanding detection in distributed generation systems. Characterised by high efficiency and performance, C4.5 decision-tree is particularly applicable to the condition of large amounts of mining data. This novel method greatly reduces the damage to the utility resulting from the islanding running state, and also highly enhances the capability of detecting islands of the protection relay. This method ivas tested on a typical distribution system with multiple distributed recourses by using Matlab/ Simulink tools. The simulation results show that C4.5 decision-tree is effective. © Institution of Engineers Australia, 2010.


Song Q.,Zhejiang University | Song Q.,Jiangsu Electric Power Company | Wang H.,Jiangsu Suzhou Power Supply Company | Wen F.,Zhejiang University | And 3 more authors.
Journal of Energy Engineering | Year: 2015

In this paper, the inherent mechanism of social benefits associated with smart grid development is examined based on the pressure state response (PSR) model from resource economics. The emerging types of technology brought up by smart grid development are regarded as pressures. The improvements of the performance and efficiency of power system operation, such as the enhanced capability of accommodating renewable energy generation, are regarded as states. The effects of smart grid development on society are regarded as responses. Then, a novel method for evaluating social benefits from smart grid development is presented. Finally, the social benefits from smart grid development in a province in northwest China are carried out by using the developed evaluation system, and reasonable evaluation results are attained. © 2014 American Society of Civil Engineers.


Song Q.,Zhejiang University | Wang H.,Zhejiang University | Wang H.,Jiangsu Suzhou Power Supply Company | Wen F.,Zhejiang University | And 3 more authors.
2013 Australasian Universities Power Engineering Conference, AUPEC 2013 | Year: 2013

In this paper, the inherent mechanism of benefits associated with smart grid development is examined based on the Pressure-State-Response (PSR) model from resource economics. The emerging types of technology brought up by smart grid development are taken as pressures. The improvements of the performance and efficiency of power system operation are taken as states. The effects of smart grid development on society are taken as responses. Then, a novel method for evaluating social benefits in energy saving and CO2 emission reduction from smart grid development is presented. Finally, the benefits in a province in northwest China is carried out by employing the developed evaluation system, and reasonable evaluation results are attained. © 2013 Australasian Committee for Power Engineering (ACPE).


Zhou Z.-C.,Jiangsu Electric Power Research Institute | Wang J.-G.,Jiangsu Suzhou Power Supply Company | Wei X.,Jiangsu Electric Power Research Institute | Ma Y.,Jiangsu Electric Power Research Institute | Tao F.-B.,Jiangsu Electric Power Research Institute
Gaodianya Jishu/High Voltage Engineering | Year: 2011

Increasing application of cable leads to sharp increase in capacitance current, and original capacity of arc extinction coil no longer meets the demands. The compensation performance is outstanding because of low cost and flexible installation. We researched the flexibility of distributed arc suppression coil by the location and capacity, and analyzed the cooperation with arc extinction coil of principal station. Moreover, we established and experimentally verified a simulation model. The results indicate that, fault residual current is the minimum if installed at the end of longer cable and the current match with the line.


Pan Q.,Jiangsu Suzhou Power Supply Company | Xu Y.,Jiangsu Suzhou Power Supply Company | Gao Z.,Beijing Sifang Automation Co
Dianli Xitong Baohu yu Kongzhi/Power System Protection and Control | Year: 2014

A schema of three level automatic voltage control system in distribution network with the connection of many distributed photovoltaic power plants is introduced. Through the analysis on the characteristics of distributed photovoltaic power station, the system structure, control mode, data communication, the design method of voltage control strategy is introduced in detail. The engineering examples show that, the design method of PV power station voltage control system of intelligent control technology based on partition is effective and practical. It can optimize the PCC voltage, power factor, and can make distributed photovoltaic power plant more friendly and efficient.


Li P.,North China Electrical Power University | Li T.,North China Electrical Power University | Li J.M.,North China Electrical Power University | Xu D.,North China Electrical Power University | Shi R.Y.,Jiangsu suzhou Power Supply Company
Advanced Materials Research | Year: 2013

The distributed generation (DG) may lead to a great impact on the reactive power flow, feeder voltage profile and the means of voltage regulation when integrated into a typical distribution system. Therefore, there is possibility that the customer's voltage violate the permissible limits. In order to regulate the voltage of the distribution system with DG, local voltage and reactive power control (VQC) based on fuzzy control theory is adopted in substation and the Static Var Compensator(SVC) is installed in the appropriate node in this paper, and the fuzzy controller of VQC has been designed at the same time. A simplified model of a real 10kV radial distribution system has been simulated in MATLAB to illustrate the use of the voltage regulation method, and the simulation results show that the proposed method can regulate the line voltage of distribution system with DG within the regulated voltage ranges. © (2013) Trans Tech Publications, Switzerland.

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