面向对象的变电站微机综合自动化系统的研究──光互连分布式并行处理计算机网络结构

为了提高变电站微机综合自动化系统的水平，本文提出了实现变电站微机综合自动化的新型计算机网络结构一面向对象的光互连分布式并行处理计算机网络。本文研究的光互连通信网络具有拓扑结构可编程重构的特点，通过光互连通信网络将保护控制综合单元等互连成大规模的并行处理机阵列网络，以实现各种一次设备的控制单元之间、各种保护单元之间以及控制单元与保护单元之间的有机的紧密协调。光互连通信网络具有高速、带宽大、抗电磁干扰能力强，以及简单、可靠等优点。     

Development of a 16-bit microprogrammable computer as a seniorcourse project: a teamwork approach to engineering education

The authors describe an educational experiment in computer engineering at the University of Washington. Eight senior students work together to design and fabricate a 16-bit general-purpose microprogrammable computer system and support software. The project was developed in a capstone hardware design course in electrical engineering. In parallel with other demands of the course, students collaborated on such tasks as architectural specification and research, design and wirewrapping, and testing of the system     

A new graduate course on optical computing

A new optical computing course offered at the graduate level is described. The term “optical computing” used here refers to the design of digital computer system modules and interconnections using optical/optoelectronic technologies. The course has been offered in the College of Computer Science and Engineering (CCSE), by both the computer engineering (COE) and the information and computer science (ICS) departments while the author was at King Fahd University of Petroleum and Minerals (KFUPM). In essence, the course was intended for a wide audience. Students from other disciplines, such as electrical engineering (EE) and systems engineering (SE), can register for the course as an elective. The course main topics are: motivation and background for optical computing; subsystems for optical computing that discusses the different types of optical interconnection networks, optical memory, optical arithmetic/matrix computations and related algorithms; and architectural models of computations where optical LANs/MANs, optical dataflow computers, optical cellular automata, and optical neural networks are discussed     

基于目标级联分析法的输电网结构优化

为了充分利用可再生能源,增强电力系统各区域间的互联协调能力,提出了一种基于目标级联分析(ATC)法的输电网结构优化模型。首先,利用母线撕裂法将电力系统解耦为多区域互联系统;其次,建立含可再生能源发电的输电网结构优化模型,在此基础上,进行多区域互联电力系统的统一分析和决策;再次,采用ATC法将模型分解为主问题和子问题进行并行计算,实现源网荷协同的输电网结构优化。最后,通过对IEEE 14节点及IEEE 118节点系统的测试分析,验证了所提模型可有效协调互联电网的运行,提高电力系统运行的经济性。     

Parallel processing

Parallel processing is many problem solvers operating simultaneously or concurrently to reach a solution. A parallel processing computer system typically breaks down a big problem into many subproblems. It then solves it through close cooperation of a large number of interconnected processors. Parallel processing is the only way to overcome the limitation of traditional architectures. Following this direction, many new computer architectures have been proposed. They have opened up the possibility of constructing massively parallel computer systems that provide ultra high performance at reasonable costs     

柔性互联配电网运行调度研究综述

新型电力系统发展阶段,多元化源网荷储设备的接入给电网运行带来了巨大挑战。各种新型电力电子柔性互联装置实现了配电网柔性互联,在配电网新形势发展下能够更好地适应各种挑战,是配电网实现智能化进展的重要结构形式。首先阐述了基于柔性互联技术构成的柔性互联配电网相关概念,然后介绍了几种典型的柔性互联设备,在此基础上展示柔性互联系统的相应组网形态,并着重针对柔性互联配电网系统运行调度层面关键技术展开讨论,最后进行总结与展望。     

A three-layer 3D silicon system using through-Si vertical opticalinterconnections and Si CMOS hybrid building blocks

We present for the first time a three-dimensional (3D) Si CMOS interconnection system consisting of three layers of optically interconnected hybrid integrated Si CMOS transceivers. The transceivers were fabricated using 0.8-μm digital Si CMOS foundry circuits and were integrated with long wavelength InP-based emitters and detectors for through-Si vertical optical interconnections. The optical transmitter operated with a digital input and optical output with operation speeds up to 155 Mb/s. The optical receiver operated with an external optical input and a digital output up to 155 Mb/s. The transceivers were stacked to form 3D through-Si vertical optical interconnections and a fabricated three layer stack demonstrated optical interconnections between the three layers with operational speed of 1 Mb/s and bit-error rate of 10^-9     

10 Gb/s very short reach transmission in parallel optical link

This paper introduces vertical cavity surface emitting lasers (VCSEL) based very short reach VSR parallel optical interconnection in SONET/SDH OC-192 applications, which is compliant with the requirements of optical internetworking forum OIF VSR4-01.0 and VSR4-03.0 interfaces, respectively. All logic functions of the converter IC are implemented in an FPGA. Tested by an SDH tester, a system bit error rate (BER) of lower than 1 × 10⁻¹⁴ has been obtained.     

海上多平台气-电互联系统稳态建模与能量流分析

海上多平台气-电互联系统的耦合元件和稳态模型与传统气-电互联系统有所不同,故而对其进行稳态建模和能量流分析。互联系统的模型不仅对气网、电网和传统气-电互联系统的耦合元件压缩机和透平发电机进行了建模,还考虑了海上多平台的特点,提出海上平台电采气耦合过程并构建模型。基于顺序潮流算法,采用适合多平台实际情况的多平衡节点能量流算法进行能量流分析。最后,以某海上多平台气-电互联系统为算例,计算结果验证了所提模型的适用性和能量流算法的有效性。     

光互连并行处理器阵列在电力系统自动控制和继电保护中的应用研究

根据电力系统自动控制和继电保护的特点及体系结构，同时为了适应未来电力系统发展的需要，本文提出了应用光互连并行处理器阵列建立全新概念的电力系统自动控制和继电保护的系统体系，该体系具有并行计算机所具有的很强的并行性，以实现各种控制单元之间、各种保护单元之间以及控制单元与保护单元之间的有机紧密协调，而且具有光互连技术所具有的高速、带宽大、抗电磁干扰强以及简单、可靠等优点。该系统的实际应用将使电力系统自动控制和继电保护的水平得到质的飞跃     

基于无线系统的负控供电运营管理平台

介绍了电力负荷控制系统的发展历程、重要作用及总体构成,在现行的电力负荷管理系统的基础上,构建一个供电运营管理平台;进一步介绍了电力负荷控制系统,可通过前置工控机切换信道接口,实现与光纤、载波信道的沟通;实现了利用无线电远程监测和控制负荷,并提供监控中心站计算机系统的配置方案,并就优缺点进行比较,提出了系统的应用模式方案。     

华北一东北联网工程系统调整试验

我国第一个大区电网间交流联网系统－－华北－－东北互联系统已与2001年5月投入运行。系统联络线是166km的500kV缓姜线。联网系统调试的主要内容有：①联网系统并列、解列试验,②联网系统无功电压调整试验,③联网系统联络线功率调整试验,④系统扰动试验（包括切机、跳线、PSS退出等）。系统调试的主要结论为：①华北－东北电网通过绥姜线并、解列,不会对两个系统造成大的冲击。②互联系统具有较好的联络线潮流控制能力。③互联系统具有较好的阻尼特性,可以保证系统发生小扰动时的动态稳定性。     

西北电网与华中(四川)电网联网规模选择研究

本文探讨了西北与华中(四川)两大电网的主要联网效益,首次研究了水火电互补调节效益在西北与四川联合电网中的获取特点,并给出了合适的联网效益数值。从五个方面研究了两大电网联网的合理规模问题,特别是对联网效益与联网规模关系的分析,以及联网工程投入产出的综合分析,做了探索性的研究,为项目决策提供了依据,对今后跨大区联网工程研究有较大借鉴意义。     

我国交流互联电网动态稳定性的研究及解决策略

在我国大区交流互联系统中存在着区域间弱阻尼或负阻尼低频振荡问题。为了解决该问题,工程人员通过现场试验、整定和调试,目前己为100多台机组配置了电力系统稳定器(PSS)。联网试验及联网后的运行经验证明,这些PSS的配置增强了联网系统的阻尼,保证了联网系统的动态稳定性,是解决我国大区交流互联系统动态稳定问题行之有效的方法。     

互联电网预防控制和紧急控制在线预决策系统

针对电网互联和电力市场化给电网安全稳定经济运行带来的挑战，阐述了互联电网在线暂态安全分析与控制的重要性，强调其在线预决策系统（OPS）不仅要考虑功角稳定性，而且要计及电压和频率的安全性，而预防控制和紧急控制也应该在协调的框架下研究。探讨了一体化OPS与调度中心其他系统的联系，以及多个能量管理系统（EMS）和多个安全稳定控制系统的数据共享；提出了相应的框架，并采用分布式并行计算技术来提高该系统的快速性和可靠性。最后介绍了一个应用实例及其实施中的关键问题。     

Unit commitment health analysis for interconnected systems

The concepts previously published for unit commitment and operating reserve assessment in an isolated power system using a system well-being framework are extended in this paper to evaluate unit commitment and spinning reserve requirements in interconnected power systems. The problem of interconnected power systems unit commitment is decomposed into two subproblems. Unit scheduling is first performed in each isolated power system in accordance with the specified operating criterion. This is then followed by interconnected power system evaluation. The analysis is further extended to determine the operating state probabilities for the overall interconnected power system. The paper illustrates how power system well-being is improved by interconnection with other power systems. The concepts contained in the paper are illustrated by application to two radially interconnected IEEE-RTS     

Continuous recording and stochastic analysis of PD

We describe the design and use of a digital partial discharge (PD) data recording system capable of continuous real-time recording of PD pulse trains. The recording system consists of a custom two-channel PD digitizer coupled to a personal computer via a 10-bit parallel interface. The digitizer is under software control with the resulting data being stored in binary files on the computer's hard disk. The stored data subsequently are subjected to stochastic analysis using appropriate computer software. Because all data are retained and the computer provides the desired stochastic analysis of data files, the new system is well suited to investigate non-stationary PD behavior such as encountered in aging studies. By way of illustration, the new system was used to determine the time-varying stochastic behavior of ac-generated PD from point-to-dielectric gaps in air where the insulation material was cast epoxy with aluminum oxide filler. The results confirm and extend previous measurements made with an analog stochastic analyser. With these sample results, we demonstrate how the system allows detailed stochastic analyses not possible with data obtained from existing conventional PD measurement systems     

面向对象的变电站微机综合自动化系统的研究--保护控制综合单元的多处理机系统及其性能分析

为了提高变电站微机综合自动化系统的水平,本文提出了实现变电站微机综合自动化的新型计算机网络结构--面向对象的光互连分布式并行处理计算机网络.保护控制综合单元是"面向对象的变电站微机综合自动化系统"的重要组成部分,是对一次设备实现保护和控制的元件.本文重点研究了保护控制综合单元的构成,即采用基于Transputer和MC68332的异构型2层松耦合并行多处理机系统作为实现保护、控制或人机对话功能的功能单元,将各种功能单元按一定拓扑结构互连构成保护控制综合单元,并对该系统进行了性能分析.研究结果表明,该保护控制综合单元不仅具有很强的并行协调处理能力,而且具有高可靠性、灵活性和可扩展性,以及高速处理能力等优点.