A Study for Sustaining Reliability of Electric Power Systems Included Multiple Entities

在包含多个主体的电力系统中，主体或参与者采取复杂的经济行为以获得最大的利益。这些电力系统的运营商既要维持允许的电能质量水平，又要在实际电网上实现复杂的物理交易。研究了正常状态下竞争性交易的安全实现、预测紧急状态下网络线路负荷救济程序中的交易缩减等预防措施、维护可靠性的主体间职责分配以及在科研补助支持下主体联合行为对可靠性提升的影响。研究内容包括：1)多实体对线路卸荷过程的贡献及系统可靠性的提高。这项研究报告于1999年6月在CIGRE伦敦研讨会上发表。2)基于移相器分配的潮流可控区域特征提取。3)动态稳定视角下的电力交易路径筛选研究。这些专题分别于1998年和1999年刊登在IEE日本期刊B辑。4)竞争环境下电力系统可靠性的新概念，特别关注预防或应急状态下的联盟行为。该研究报告于2000年11月在PSAM5大阪研讨会上发表。(5)分析了由于实体之间的自私经济行为而导致的网络应力导致的复杂潮流导致的可靠性崩溃。6)通过节点价格和可靠性必须运行发电来维持可靠性的解决方案。7)利用在支持的WS系统上建立的客户端-服务器系统进行仿真研究。

In the electric power system included multiple entities, entities or players take the complicated economic action by which they are able to get maximum benefit. Operator of these power systems has to sustain the permissible level of power quality and has to realize physically the complicated transaction on the real power network. We have studied the safe realization of the competitive transactions in the normal state, the preventive action including the transaction curtailment for network line loading relief procedure in order to survive the predicted emergency state, the duty allocation among the entities for maintaining the reliability and the effect of the coalition behavior of entities to the reliability enhancement by the support of the Grand-in Aid for Scientific Research.Studies include the followings : 1) Contribution of multiple entities on the line loading relief procedure and the improvement of system reliability. This study was reported at the CIGRE London Symposium on June 1999. 2) Feature extraction for controllable area of power flows depending on the phase shifter allocation. 3) A study on screening of electricity transaction path from the standpoint of dynamic stability. These topics appeared on the IEE Japan Periodicals, Transaction Section B in 1998 and 1999, respectively. 4) New reliability concept of the electric power system under the competitive circumstance, specially focused on the coalition behavior in the preventive or the emergency state. This study was reported at the PSAM5 Osaka Symposium on November 2000. 5) Analysis of the reliability collapse through the network stress followed by the complicated power flow because of selfish economic actions among the entities. 6) Solutions to sustain the reliability by the nodal price and the reliability must-run-generation. 7) Simulation study by using the client-server system established on the supported WS system.