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| 1 | An operating state estimation model for integrated energy systems based on distributed solution显示文摘In view of the disadvantages of the traditional energy supply systems,such as separate planning,separate design,independent operating mode,and the increasingly prominent nonlinear coupling between various subsystems,the production,transmission,storage and corn sumption of multiple energy sources are coordinated and optimized by the integrated energy system,which improves energy and infrastructure utilization,promotes renewable energy consumption,and ensures reliability of energy supply.In this paper,the mathematical model of the electricity-gas interconnected integrated energy system and its state estimation method are studied.First,considering the nonlinearity between measurement equations and state variables,a performance simulation model is proposed.Then,the state consistency equations and constraints of the coupling nodes for multiple energy sub-systems are established,and constraints are relaxed into the objective function to decouple the integrated energy system.Finally,a distributed state estimation framework is formed by combining the synchronous alternating direction multiplier method to achieve an efficient estimation of the state of the integrated energy system.A simulation model of an electricity-gas interconnected integrated energy system verifies the efficiency and accuracy of the state estimation method proposed in this pape.The results show that the average relative errors of voltage amplitude and node pressure estimated by the proposed distributed state estimation method are only 0.0132%and 0.0864%,much lower than the estimation error by using the Lagrangian relaxation method.Besides,compared with the centralized estimation method,the proposed distributed method saves 5.42 s of computation time.The proposed method is more accurate and efficient in energy allocation and utilization. | Dengji ZHOU Shixi MA Dawen HUANG Huisheng ZHANG Shilie WENG | 2020 | Frontiers in Energy2020，14，4： | 5 |
| 2 | A modified highly precise direct integration method for a class of linear time-varying systems显示文摘It is always a bottleneck to design an effective algorithm for linear time-varying systems in engineering applications.For a class of systems,whose coefficients matrix is based on time-varying polynomial,a modified highly precise direct integration(VHPD-T method)was presented.Through introducing new variables and expanding dimensions,the system can be transformed into a timeinvariant system,in which the transfer matrix can be computed for once and used forever with a highly precise direct integration method.The method attains higher precision than the common methods(e.g.RK4 and power series)and high efficiency in computation.Some numerical examples demonstrate the validity and efficiency of the method proposed. | LIU XiaoMei ZHOU Gang ZHU Shuai WANG YongHong SUN WeiRong WENG ShiLie | 2014 | Science China(Physics,Mechanics & Astronomy)2014，57，7： | 3 |
| 3 | Decoupling optimization of integrated energy system based on energy quality character显示文摘Connections among multi-energy systems become increasingly closer with the extensive application of various energy equipment such as gas-fired power plants and electricity-driven gas compressor.Therefore,the integrated energy system has attracted much attention. This paper establishes a gas-electricity joint operation model,proposes a system evaluation index based on the energy quality character after considering the grade difference of the energy loss of the subsystem,and finds an optimal scheduling method for integrated energy systems.Besides,according to the typical load character- istics of commercial and residential users,the optimal scheduling analysis is applied to the integrated energy system composed of an IEEE 39nodes power system and a 10nodes natural gas system.The results prove the feasibility and effectiveness of the proposed method. | Shixi MA Shengnan SUN Hang WU Dengji ZHOU Huisheng ZHANG Shilie WENG | 2018 | Frontiers in Energy2018，12，4： | 3 |
| 4 | A new gas path fault diagnostic method of gas turbine based on support vector machine显示文摘 | ZHOU Dengji ZHANG Huisheng WENG Shilie | 2015 | Journal of Engineering for Gas Turbines & Power2015，137，10： | 1 |
| 5 | Energy internet technology:modeling,optimization and dispatch of integrated energy systems显示文摘With the rapid development of the information technology and the application of renewable energy,the energy internet,which has been widely accepted as a means of integrating energy flow,information flow,and business flow,is prone to be the future form of energy system. However,it is a new system,never existed in human history.Therefore,from philosophical imagination to engineering realization,there are many scientific and technical problems,waiting to be solved.The purpose of this special issue is to demonstrate the recent research works on energy internet,as well as some proposals and suggestions to decision makers for strategic planning. | Shilie WENG Chenghong GU Yiwu WENG | 2018 | Frontiers in Energy2018，12，4： | 1 |
| 6 | "Partial pressures" of humid air in wide pressure and temperature ranges显示文摘在潮湿的空中的部分压力是科学家非常担心的一个问题,没有令人满意的答案迄今为止被发现了。这份报纸建议一个新奇方法在潮湿的空中获得水蒸汽和干燥空气的部分压力。建议方法获得的结果与由道尔顿部分压力法律获得了那相当不同。水蒸汽和干燥空气的基本行为在宽压力和温度范围深入地被学习。半渗透的膜模型被建议并且申请浸透并且不饱和的潮湿的空气。改进因素被开发到份量上描述在不一样的分子之间的相互作用的大小。一发现是在浸透的潮湿的空中的水蒸汽的部分压力等于 P s,而非(f ? ?????? 吗?? | Zidong WANG Hanping CHEN Shilie WENG | 2013 | Frontiers in Energy2013，7，4： | 1 |
| 7 | Technological development of multi-energy complementary system based on solar PVs and MGT显示文摘The complementary micro-energy network system consisting of solar photovoltaic power generation (solar PVs)and micro-gas turbine (MGT),which not only improves the absorption rate and reliability ofphotovoltaic power,but also has the advantages of low emission,high efficiency,and good fuel adaptability,has become one of the most promising distributed power systems in the field of micro grid.According to the development of current technology and the demand of actual work,this research described the domestic and foreign development of microenergy network system based on solar PVs and MGT. Moreover,it analyzed the challenges and future development regarding the micro-energy network system in planning and design,energy utilization optimization and dispatching management,and system maintenance,respectively.Furthermore,it predicted the future development of the key technology of the multi-energy complementary system.These results will be beneficial for the progress of this field both in theory and practice. | Xiaojing LV Yu WENG Xiaoyi DING Shilie WENG Yiwu WENG | 2018 | Frontiers in Energy2018，12，4： | 1 |
| 8 | Extensible Object Model for GasTurbine Engine Simulation显示文摘 | Xie Zhiwu Su Ming Weng Shilie | 2001 | Applied Thermal Engineering2001，21，1： | 1 |
| 9 | Modeling and simulation of solid oxide fuel cell based on the volume–resistance characteristic modeling technique显示文摘 | Lijin Wang Huisheng Zhang Shilie Weng | 2007 | Journal of Power Sources2007，，2： | 1 |
| 10 | Experimental investigation on humidifying performance of counter flow spray saturator for humid air turbine cycle显示文摘 | WANG Yuzhang LI Yixing WENG Shilie | 2007 | Energy Conversion & Management2007，48，3： | 1 |
| 11 | Characterization and fine mapping of the glabrous leaf and hull mutants (gl1) in rice (Oryza sativa L.)显示文摘 | Wenqiang Li Jianguo Wu Shili Weng Dapeng Zhang Yujiang Zhang Chunhai Shi | 2010 | Plant Cell Reports2010，，6： | 1 |
| 12 | Extensible object model for gas turbine engine simulation显示文摘 | XIE Zhiwu SU Ming WENG Shilie | | 0，，： | 1 |
| 13 | Experimental investigation of pressurized packing saturator for humid air turbine cycle显示文摘 | HUI Yu WANG Yuzhang WENG Shilie | 2014 | Applied Thermal Engineering2014，62，62： | 1 |
| 14 | Extensible object model for gas turbine engine simulation显示文摘 | Xie Zhiwu Su Ming Shilie Weng | 2001 | Applied Thermal Engineering2001，21，3： | 1 |
| 15 | Dynamic modeling and simulation of distributed parameter heat exchanger 显示文摘 | Huisheng ZHANG Shilie WENG Ming SU | 2005 | ASME TURBO EXPO2005，，： | 1 |
| 16 | Evaluation of topping and Bottoming Cycle Hybrid Power Plants with MCFC-Micro Turbine显示文摘 | Zhang Huisheng Weng Shilie Su Ming | 2004 | Asme Turbo EXPO2004，3397，： | 1 |
| 17 | Experimental investigation of a novel micro gas turbine with flexible switching function for distributed power system显示文摘Micro gas turbine(MGT)is widely used in small-scale distributed power systems because of its low emissions and fuel flexibility.However,the under-utilization of its exhaust heat and the low electric efficiency are the main bottlenecks that restrict its application.Additionally,the flexible switching between the power generated by the MGT and the power grid is also a key factor for keeping the secure operation of a distributed power station.Therefore,this paper conducted some experimental investigations of a 30 kW MGT to provide reference solutions for the above issues.This MGT is located at Shanghai Jiao Tong University(SJTU),which is designed by the Gas Turbine Research Institute of SJTU,and is manufactured by a turbo machinery factory in Chongqing,China.The demonstration prototype is mainly composed of a single stage centrifugal compressor,a radial turbine,a combustor,a high-speed pennanent magnet generator,and a control system.The results show that the MGT can achieve steady operation at a low rotational speed from 10000 r/min to 34000 r/min in the case of using oil lubricated bearings,which can greatly reduce the economic cost compared with the use of air bearings.At the same time,the ignition success rate of combustion chamber(CC)reaches 98%at a low rotational speed,and a wide range of stable combustion area can be obtained,because of the novel design method of combustor by referencing the way applied in an axial flow aero-engine.The MGT generating set can achieve functions,such as starting up,ignition,stable operation,loaded operation,grid-connection and stopping.This system also can realize flexibly switching from the start motor mode to the generator mode,and from grid-connected mode to off^grid mode,because the innovative multi-state switching control system is adopted.The above research work can make our state master independent intellectual property rights of micro gas turbine,rather than continue to be subject to the technological monopoly of the developed states,which can provide theoretical and experimental support for the industrialization of MGT in China. | Xiaojing LV Weilun ZENG Xiaoyi DING Yiwu WENG Shilie WENG | 2020 | Frontiers in Energy2020，14，4： | 1 |
| 18 | Efficient Partially Asynchronous Parallel Simulation on Multicomputer Systems: Research and Practice显示文摘This paper presents partially asynchronous parallel simulation of continuous-system(PAPSoCS) and some approaches to the issues of its implementation on a multicomputer system.To guarantee the simulation results correct and speedup the simulation, the scheme for efficient PAPSoCS is proposed and the virtual topology star is constructed to match the path of message passing for solving algorithm-architecture adequation problem. Under the circumstances that messagesfrequently passed inter-processor are much shorter,typically within several 4 bytes,asynchronouscommunication mode is employed to reduce the communication ratio. Experiment results show thatasynchronous parallel simulation has much higher efficiency than its synchronous counterpart. | Chen, Delai Hong, Bo Xie, Zhiwu Weng, Shilie | 1998 | Journal of Systems Engineering and Electronics1998，9，2： | 0 |
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