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2012 IEEE International Power Engineering and Optimization Conference Melaka, Malaysia最新文献

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Generation and load life-cycle cost optimisation study at an offshore hub platform 海上枢纽平台发电和负荷全寿命周期成本优化研究
A. Junid, M. Faudzi Yasir, A. Ithnin, V. Asirvadam, M. Iqbal Ridwan, A. Busrah
Operators of aging offshore platforms that require lifespan extension often undertake revamp and rejuvenation projects to replace or repair existing aged or obsolete platform equipment with newer ones that may also utilise newer technology. Although power generation technologies such as unmanned thermoelectric generation (TEG), photovoltaics, microturbines, gas generators and low energy lighting such as LEDs have existed for several decades, commercial implementation is still in principal subject to cost-benefit studies performed as part of revamp and rejuvenation projects. A recurring challenge in such studies is to estimate and compare capital, operations, maintenance, logistics, manning and reliability costs while keeping an eye on what level of upfront capital expenditure is reasonable, given project budgets. This paper summarises such considerations taken during a revamp and rejuvenation project at an aging pipeline network hub platform. A decision on whether to install new equipment and technology or recondition and retain existing ones could then be taken in terms of optimal life-cycle cost, reliability and available project budgets.
需要延长使用寿命的老旧海上平台的运营商通常会进行改造和恢复项目,以更换或维修现有的老化或过时的平台设备,使用更新的平台设备,也可能使用更新的技术。尽管诸如无人热电发电(TEG)、光伏发电、微型涡轮机、燃气发电机和低能耗照明(如led)等发电技术已经存在了几十年,但作为改造和复兴项目的一部分,商业实施仍然主要受到成本效益研究的影响。在这些研究中,一个反复出现的挑战是估计和比较资本、运营、维护、后勤、人员配备和可靠性成本,同时密切关注在给定项目预算的情况下,什么水平的前期资本支出是合理的。本文总结了在一个老化的管道网络枢纽平台的改造和复兴项目中所考虑的这些因素。然后,可以根据最佳生命周期成本、可靠性和现有项目预算来决定是安装新设备和技术,还是翻新和保留现有设备和技术。
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引用次数: 0
DG sizing impact for loss minimization considering cost factor 考虑成本因素,DG尺寸对损失最小化的影响
O. Aliman, I. Musirin, M. Sulaiman
Distributed Generation (DG) is an auspicious solution to many power system problems such as voltage regulation, power loss minimization, effective operating power factor, etc. This paper presents a modified Artificial Bee Colony (ABC) algorithm to suit the searching for the optimal DG sizing and placement in a distribution network. The problem formulation and the proposed technique are tested on a 28-bus Malaysian distribution system. In confirming the effectiveness of this method to determine the minimum power loss which respects to its optimal size and placement, the proposed population-based meta-heuristic approach is compared with the Evolutionary Programming (EP) method for validation and accuracy. The analysis is focused on the sizing impact when considering the cost factor without neglecting the importance to maintain the minimal loss. The results have shown comparatively the same with EP in terms of the computational efficiency. Significance of savings could be achieved while having a low investment of DG installation with a minimum power loss.
分布式发电(DG)是解决电力系统电压调节、功率损耗最小化、有效运行功率因数等诸多问题的理想方案。本文提出了一种改进的人工蜂群(ABC)算法,以适应配电网中DG的最佳尺寸和布局的搜索。问题的提出和提出的技术在马来西亚28总线配电系统上进行了测试。为了验证该方法在确定最佳尺寸和位置的最小功率损失方面的有效性,将所提出的基于种群的元启发式方法与进化规划(EP)方法进行了验证和准确性比较。在考虑成本因素时,分析的重点是尺寸的影响,而不忽视保持最小损失的重要性。结果表明,在计算效率方面与EP比较一致。节省的意义可以实现,同时具有低投资的DG安装和最小的功率损耗。
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引用次数: 7
Development of combined vector and Direct Torque Control methods for independent two induction motor drives 独立两台感应电机驱动的矢量和直接转矩联合控制方法的开发
M. Talib, Z. Ibrahim, N. Abdul Rahim, N. Mohd Yaakop
Many applications use two or more motors operating in parallel configuration by using one variable speed drive. This system is able to control these multiple motors at the same desired motor speed operation which provide advantages in terms of components and cost reduction. However, the system is not able to control each motor separately if it is desired to operate at different speeds and it also cannot withstand the load disturbance. To address this problem, the design of combined Vector Control-Direct Torque Control (DTC) methods is proposed and their performance is investigated for the case of independent controlled two induction motors fed by single Five Leg Inverter (FLI) method. Double Zero Sequence (DZS) Injection Method Space Vector Pulse Width Modulation (SVPWM) scheme is used for the FLI. Simulation results from the Simulink/Matlab that verify the validity of the method are also included. The results show the ability of the proposed method to control motor speed independently under forward-reverse step speed command and load disturbance condition.
许多应用使用两个或更多的电机并联配置运行,使用一个变速驱动器。该系统能够以相同的期望电机速度控制这些多个电机,从而在组件和降低成本方面提供优势。然而,如果需要以不同的速度运行,系统无法单独控制每个电机,并且也无法承受负载干扰。针对这一问题,提出了矢量控制-直接转矩控制(DTC)组合控制方法的设计,并对采用单五腿逆变器(FLI)方式独立控制的两台异步电机进行了性能研究。FLI采用双零序列(DZS)注入方法空间矢量脉宽调制(SVPWM)方案。最后给出了Simulink/Matlab的仿真结果,验证了该方法的有效性。结果表明,该方法能够在正-反阶跃速度指令和负载扰动条件下独立控制电机转速。
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引用次数: 10
BCO based technique for line outage identification in congestion management 拥塞管理中基于BCO的线路中断识别技术
M. Rahim, I. Musirin, Z. Hamid, N. A. M. Kamari
In a modern urbanization metropolitan country, energy especially electrical energy is considered as an inevitable necessity because of their need have been seen apparently increase every year. Since then, the congestion in the power system had brought serious problems for the utility in particular. If the problems are not handled with care, a grisly catastrophic event is waiting, thus an appropriate method is recommended in order to explore a new approach to solve congestion issue. In this paper, congestion management with the bee colony optimisation (BCO) technique in solving the congestion problems in power system is presented. The BCO has been used in IEEE 30-Bus Reliability Test System (RTS) Bus and IEEE 26-RTS Bus to validate its capability. However for the verification purposes, other optimization such as Evolutionary Programming (EP) and Particle Swarm Optimisation Technique (PSO) are also be used.
在一个现代化的城市化都市国家,能源特别是电能被认为是不可避免的必需品,因为它们的需求每年都在明显地增加。从那时起,电力系统的拥堵给电力公司带来了严重的问题。如果不小心处理这些问题,将会发生可怕的灾难性事件,因此建议采用适当的方法来探索解决拥塞问题的新途径。本文提出了用蜂群优化技术解决电力系统拥塞问题的拥塞管理方法。BCO已在IEEE 30总线可靠性测试系统(RTS)总线和IEEE 26-RTS总线上进行了验证。然而,为了验证目的,其他优化如进化规划(EP)和粒子群优化技术(PSO)也被使用。
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引用次数: 0
Study on energy efficient street lighting system design 节能街道照明系统设计研究
S. Alzubaidi, P. K. Soori
Today, energy shortage and carbon emission are the major challenges faced by many countries. There are many ways to save energy in every sector thereby reducing the carbon emission and global warming. Qatar, in the Middle East has shown growing demand for electricity consumption. In Qatar, the energy consumption by 2020 is expected to reach 80,648GWh and the energy consumption for lighting alone is expected to be 15,323GWh. Lighting is used in many applications and it is one of the areas that offer many opportunities for improving the energy efficiency thereby reducing the energy consumption. This paper presents a case study on energy efficient street lighting system design for the roadways in Energy City Qatar. Simulation software DIALux4.9 is used to investigate the efficient street lighting scheme through the use of different types of lamps and highlights how the concepts can be visually compared, its cost effectiveness can be studied during the design phase in order for the decisions to be made prior to its implementation. The study has concluded that forty percent reduction in the energy consumption can be achieved with the proposed street lighting system design.
今天,能源短缺和碳排放是许多国家面临的主要挑战。在每个部门都有很多节约能源的方法,从而减少碳排放和全球变暖。中东的卡塔尔对电力消费的需求日益增长。在卡塔尔,到2020年的能源消耗预计将达到80,648GWh,仅照明的能源消耗预计将达到15,323GWh。照明在许多应用中使用,它是提供许多提高能源效率从而减少能源消耗的机会的领域之一。本文介绍了卡塔尔能源城道路节能街道照明系统设计的案例研究。模拟软件DIALux4.9通过使用不同类型的灯来研究高效的街道照明方案,并强调如何在视觉上比较这些概念,其成本效益可以在设计阶段进行研究,以便在实施之前做出决定。研究得出的结论是,拟议的街道照明系统设计可以减少40%的能源消耗。
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引用次数: 30
Risk based uncertainty (RibUt) of power system considering the increased of load demand 考虑负荷需求增加的电力系统风险不确定性
M. M. Othman, S. R. Kasim, N. A. Salim, I. Musirin
Disturbance to the electric power system often occurs with different impact. Those power system disturbances cannot be avoided but it can be mitigated by having a premeditated action which refers to the risk assessment. This paper presents the bootstrap technique that used to assess the risk of a power system at every uncertainty level of system states and load variations. In addition, the risk based uncertainty assessment is determined when the load is increased by 20%, 40% and 60% from the base case condition. The effectiveness of bootstrap technique in risk based uncertainty assessment is tested on a case study of 24-bus IEEE Reliability Test System (RTS).
电力系统经常受到干扰,影响程度不一。这些电力系统的干扰是无法避免的,但可以通过有预谋的行动来减轻,这涉及到风险评估。本文介绍了一种用于评估电力系统在系统状态和负荷变化的各个不确定水平上的风险的自举技术。此外,在负荷比基准情况增加20%、40%和60%时,确定了基于风险的不确定性评估。以24总线IEEE可靠性测试系统(RTS)为例,验证了自举技术在基于风险的不确定性评估中的有效性。
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引用次数: 0
Optimum maximum voltage angle and current total harmonic distortion of uninterruptible power supply on three level single phase photovoltaic - Wind power hybrid inverter 三相光伏-风电混合逆变器不间断电源最佳最大电压角和电流总谐波畸变
M. Irwanto, T. Mansur, M. Irwan, Gomesh nair Shasidharan
This paper presents a new topology of optimum maximum voltage angle and current total harmonic distortion (CTHD) of uninterruptible power supply (UPS) on three level single phase photovoltaic (PV) - wind power hybrid inverter. It consists of four main circuits; they are a hybrid controller circuit, a charger circuit, a pulse driver and full bridge circuit. Its main energy sources are a PV array and wind power generation. In this research, a new technique to optimize the CTHD is by changing maximum voltage angle of the three level waveform that created by a microcontroller PIC16F627A-I/P and searched the lowest CTHD. This inverter is completed by stand by UPS, when the main power source fails, the battery can power the inverter and the microcontroller controls the UPS transfer switch. The result shows that for lamp load of 10 W, the lowest CTHD is obtained when the maximum voltage angle is 134°.
提出了一种三相光伏-风电混合逆变器不间断电源(UPS)最优最大电压角和电流总谐波失真(CTHD)的新拓扑结构。它由四个主要电路组成;它们是混合控制电路、充电电路、脉冲驱动电路和全桥电路。它的主要能源来源是光伏阵列和风力发电。在本研究中,一种优化CTHD的新技术是通过改变由PIC16F627A-I/P微控制器产生的三电平波形的最大电压角来搜索最低CTHD。该逆变器由待机UPS完成,当主电源出现故障时,蓄电池为逆变器供电,单片机控制UPS转换开关。结果表明,当灯负载为10 W时,最大电压角为134°时,CTHD最低。
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引用次数: 4
Statistical distributions of load profiling data 负载分析数据的统计分布
Arfah Ahmad, Intan Azmira, Suziana Ahmad, N. Apandi
This paper present an approach to estimate the customer load confidence interval using statistical distribution model. Time series data of load profile in the utility of Malaysia was analyze and this data was fit with two statistical distribution models, namely the normal and log-normal distribution. Goodness of fit test was performed in the selection of best model. Result shows that the customer load consumption for each seven days can be model using both distributions. An estimated 90%, 95% and 99% customer load confidence interval was done via both distribution models.
本文提出了一种利用统计分布模型估计客户负荷置信区间的方法。对马来西亚公用事业负荷分布的时间序列数据进行分析,并采用正态分布和对数正态分布两种统计分布模型进行拟合。选择最佳模型时进行拟合优度检验。结果表明,可以使用这两种分布对每七天的客户负载消耗进行建模。通过两种分布模型估计了90%、95%和99%的客户负荷置信区间。
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引用次数: 15
Bagasse Saving and Emission Reduction in power dispatch at sugar factory by co-generation and solar energy 热电联产与太阳能在糖厂电力调度中的甘蔗渣节约与减排
F. Pazheri, Z. Kaneesamkandi, M. Othman
Alternate fuel availability helps to replace bagasse in sugar and make them available for other purposes like paper manufacture or ethanol production. Also, power plant operators are compelled to reduce emissions of pollutants during the generations of electricity due to the increased awareness of carbon footprint and its effect on the environment. An optimization is performed on one such scenario where a combination of solar energy, coal, biomass and bagasse are used. Minimization of the emissions and bagasse utilization are taken as multiobjective problem in this paper with combined use of coal and biomass along with bagasse. The problem is formulated as Bagasse Saving and Emission Reduction (BS&ER) power dispatch problem and the results of the simulation show that the combination of solar power and others fuels can reduce both bagasse utilization and the emission of pollutants.
可替代燃料的可用性有助于取代蔗糖中的甘蔗渣,并使其可用于其他目的,如造纸或乙醇生产。此外,由于对碳足迹及其对环境的影响的认识不断提高,发电厂运营商被迫在发电过程中减少污染物的排放。对太阳能、煤、生物质能和甘蔗渣组合使用的一个方案进行了优化。本文将煤与生物质与甘蔗渣结合利用作为多目标问题来研究。将该问题表示为蔗渣节能减排(BS&ER)的电力调度问题,仿真结果表明,太阳能与其他燃料的结合既能降低蔗渣的利用率,又能降低污染物的排放。
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引用次数: 8
A novel PQM placement method using Cp and Rp statistical indices for power transmission and distribution networks 一种基于Cp和Rp统计指标的输配电网PQM配置新方法
A. Kazemi, A. Mohamed, H. Shareef
This paper presents a novel method to placement of power quality monitors (PQMs) by using the multivariable regression (MVR) model, the Cp and Rp statistical indices. In this method initially, fault data in each bus is collected and then the correlation coefficient (CC) which show the relationship between buses during system disturbances are calculated to identify two or three buses with the highest CC values. These buses are considered as the most sensitive buses in the system. The identified bus voltages are then considered as independent variables in the developed MVR model to estimate the other bus voltages. After selecting two or three buses that have maximum and minimum frequency of the calculated CC, Cp and Rp, the appropriate number and placement of PQMs is then determined based on the lowest value of the Cp and a suitable value of the Rp. To validate the proposed PQM placement method, the IEEE 30 bus test system and the 69 bus test system are used.
本文利用多变量回归模型,结合Cp和Rp统计指标,提出了一种新的电能质量监测器的布置方法。该方法首先收集每条母线的故障数据,然后计算相关系数(CC),以识别CC值最高的两条或三条母线。CC值表示系统扰动时母线之间的关系。这些总线被认为是系统中最敏感的总线。然后将识别出的母线电压作为独立变量考虑到所开发的MVR模型中,以估计其他母线电压。在选择具有计算的CC、Cp和Rp的最大和最小频率的两个或三个母线之后,然后根据Cp的最低值和Rp的合适值确定pqm的适当数量和放置。为了验证所提出的PQM放置方法,使用了IEEE 30总线测试系统和69总线测试系统。
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引用次数: 4
期刊
2012 IEEE International Power Engineering and Optimization Conference Melaka, Malaysia
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