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

在包含多个实体的电力系统中，多个实体或参与者采取复杂的经济行为，使其能够获得最大利益。这些电力系统的运营商必须维持允许的电能质量水平，并且必须在实际电网上实现复杂的交易。研究了正常状态下竞争性交易的安全实现，预防措施，包括为在预测的紧急状态下生存而削减交易的线路负荷救济程序，实体间维护可靠性的职责分配，以及在科研资助的支持下实体之间的联合行为对可靠性提高的影响。研究内容包括：1)多个实体对线路负荷救济程序的贡献和系统可靠性的提高。这项研究于1999年6月在CIGRE伦敦研讨会上发表。2)基于移相器配置的潮流可控区域特征提取。3)从动态稳定性的角度研究电力交易路径的筛选问题。这些主题分别于1998年和1999年出现在IEE日本期刊的会刊B部分。4)竞争环境下电力系统可靠性的新概念，特别关注预防状态或紧急状态下的联合行为。这项研究在2000年11月的PSAM5大阪研讨会上作了报告。5)分析了由于实体间的自私经济行为导致的电网应力和复杂潮流导致的可靠性崩溃。6)通过节点电价和可靠性必须运行来维持可靠性的解决方案。7)利用建立在支持的WS系统上的客户-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.