权益分类	功能权益	普通用户	{{item.name}}会员
{{category.name}}	{{benefitItem.name}}

A STUDY ON OPTIMAL LOAD TRANSFER OPERATION IN LARGE-SCALE URBAN DISTRIBUTION SYSTEMS

大型城市配电系统优化负荷转移运行研究

基本信息

批准号：
63550214
负责人：
NARA Koichi
金额：
$ 1.09万
依托单位：
HIROSHIMA UNIVERSITY
依托单位国家：
日本
项目类别：
Grant-in-Aid for General Scientific Research (C)
财政年份：
1988
资助国家：
日本
起止时间：
1988 至 1989
项目状态：
已结题

项目摘要

1. In order to solve the outage state load restoration sequence for large-scale urban distribution systems under the voltage drop and current capacity constraints, three algorithms have been developed based on (1) primal effective gradient method, (2) dual effective gradient method, and (3) unified approach of (1) and (2). The results have been published on The IEEE Transactions on PWRD, and The Transactions of The institute of Electrical Engineers of Japan (IEEJ).2. The concept of priority load restoration is introduced to the above load restoration algorithms. In the new algorithm, in order to restore the priority load as much as possible, the electrical energy saving by de-energizing non-urgent load of the contracted customer is also introduced. The results have been submitted to The IEEJ Transactions, and it is in the press.3. An algorithm has been developed for determining the load transfer sequence, when the initial configuration and the objective one are known. The results have … More been presented at The Annual Meeting of IEEJ and The Technical Meeting on Power System Engineering of IEEJ, and submitted to The IEEJ Transactions.4. Based on the load transfer sectionalizing switch operations, a section load measurement algorithm has been developed under the voltage drop and current capacity constraints. The results have been published on The IEEJ Transactions.5. A transformer load balancing algorithm has been developed, which finds the suitable normal open positions of sectionalizing switches in an open loop radial distribution system. The results have been published on The IEEE Transactions on PWRD, etc.6. An approximate solution algorithm for a single-period distribution system planning problem of large-scale radial urban distribution systems has been developed, in which the branch exchange has been executed based on LP sensitivity factors. The results have been published on The IEEE Transactions on PWRS. Moreover, in order to improve the computational efficiency, a sensitivity calculation method based on the electric circuit theory, instead of the LP pivot operation, has been developed. The results have been submitted to The IEEJ Transactions.7. An approximate solution algorithm for a multi-period expansion planning problem of large-scale urban distribution systems has been developed. The algorithm efficiently utilizes the above single- period expansion planning algorithm. The algorithm is still in improving process. The intermediate result has been submitted to The IEEE PES Summer Meeting. Less

1. 针对大型城市配电系统在电压降和电流容量约束下的停电状态负荷恢复顺序问题，提出了基于(1)原始有效梯度法、(2)对偶有效梯度法和(3)(1)和(2)统一方法的三种算法。研究结果发表在IEEE Transactions on PWRD和The Transactions of Electrical Engineers of Japan （IEEJ）上。在上述负载恢复算法中引入了优先级负载恢复的概念。在新算法中，为了尽可能地恢复优先负荷，还引入了对签约客户的非紧急负荷进行断电的节能措施。研究结果已提交给IEEJ Transactions杂志，并已出版。提出了一种在初始配置和目标配置已知的情况下确定负荷传递顺序的算法。研究结果已在IEEJ年会上和IEEJ电力系统工程技术会议上发表，并提交给IEEJ学报。在负荷转移分段开关操作的基础上，提出了一种电压降和电流容量约束下的分段负荷测量算法。研究结果已发表在The IEEJ transactions上。提出了一种变压器负载平衡算法，用于确定开环径向配电系统中分段开关的合适正常开路位置。研究结果发表在《IEEE Transactions on PWRD》等杂志上。提出了一种求解大型放射状城市配电系统单周期规划问题的近似求解算法，该算法采用基于LP敏感性因子的分路交换执行。研究结果发表在《IEEE PWRS汇刊》上。此外，为了提高计算效率，提出了一种基于电路理论的灵敏度计算方法，以取代LP枢轴运算。研究结果已提交给The IEEJ transactions。提出了一种求解大型城市配电系统多期扩展规划问题的近似算法。该算法有效地利用了上述单周期扩展规划算法。该算法仍在改进过程中。中间结果已提交给IEEE PES夏季会议。少