结合轿车总布置和相关法规标准,开发了基于知识的轿车视野校核系统,利用Catia知识工程模块进行参数化设计,完成了前风窗刮扫校核模块、仪表板盲区校核模块和A立柱盲区校核模块视野的自动校核,实现了视野校核系统的智能化。

Conforming to the regulations for car layout design, a check system for car visual field was de?veloped by the knowledge-based engineering (KBE). The car visual field was parameterized by Catia Knowledge-based Engineering Module. The auto-checking of the front windshield sweeping area, dash panel blind spot, and A pillar blind spot was finished. The intelligentized check system of car visual field was achieved.

电力系统运行方式变化时,保护定值可能不适应当前的运行方式,需要校核部分保护的定值。然而大规模复杂电网中,需要校核的保护非常多,校核工作很难在短时间内完成,导致电网存在校核风险。如果能够辨识出那些误动后对系统影响较大的保护予以优先校核和修改定值,显然能够显著降低电网的校核风险。基于此,在充分考虑保护误动对系统结构和状态造成的影响,提出保护的重要度指标,以保护重要度排序结果决定校核顺序。通过IEEE 14节点系统的仿真分析,验证了该方法的可行性和有效性。

When the operating modes of power grid has changed , the protection setting may not be suitable for the present oper-ating mode, therefore, it needs checking some of the protection setting .However, there are many protections needing to be checked in the large and complex power grid , the checking is difficult to be completed in a short time , which results in chec-king risk for power grid .Therefore , if those protections which have great influence on power system can be identified after the malfunction so as to be checked and adjusted preferentially , it will reduce the checking risk of power system obviously .On this basis, the influence of protection malfunction on the structure and state is taken into account , and the formula of protection im-portance is put forward in order to decide the checking sequence according to the ranking results of protection importance .At last, the simulation analysis of IEEE 14 bus system proves the feasibility and availability of the proposed method

母线负荷预测将为静态安全校核提供重要的节点负荷数据。然而,在工程实际中,随着电网规模的不断扩大,其N-1/N-2校核场景出现了几何级数式的组合增长,也增加了每个校核场景计算的复杂度。虚拟母线是电网中存在一种紧密联系的连通局部网络,利用虚拟母线技术可以预先辨识起作用场景,在解决静态安全校核计算复杂度上具有显著的效果。为此,面向关键断面这一重要的电网安全特征,从电网中辨识出若干个虚拟母线,基于划分好的虚拟母线,筛选出相应的影响线路与波及线路,并构建紧急线路集;对此集合的线路实施静态安全校核。河北南网的算例结果表明,基于虚拟母线的静态安全校核算法可以在很大程度上提高静态安全校核的计算速度,适应工程实际需要。

ABSTRACT:Bus load forecasting lays a good foundation for power system steady-state security correction. However, in engineering practice, with the development of power grid, the number of N-1/N-2 correction scenario increases in a geometric way, and the complexity of each correction scenario also increases. Virtual bus is one type of the closely connected local electric networks in the grid. Virtual bus technique can be used to identify active line constraints that significantly affect power system operation in advance, thus helpful to handle the above problems. This paper firstly identified several virtual buses towards the critical transmission sections/lines. On this basis, an emergency line set was constructed, which included the critical lines, corresponding influenced lines and influencing lines. Then, steady-state security correction was performed based on the emergency line set. Finally, case studies based on real data of Hebei Southern Power Grid testified the effectiveness of

安全校核是保障电网稳定运行的一道重要安全防线。基于智能电网调度控制系统的服务总线和并行计算服务，研究实现了面向服务的安全校核功能，为日前计划编制、日内计划调整、电网调度操作提供可定制的支持多任务并行的安全校核服务。计划潮流生成是安全校核的基础，结合中国电网分级调度的运行模式提出了基于多断面潮流控制技术的计划潮流算法，并应用无功电压自动调整和潮流不收敛智能调整技术提高收敛性和结果合理性。研究了多级调度日前计划联合安全校核的实用化技术，通过计划数据校验和统计技术指标提高了安全校核的实用化水平。

Security check is an important link for power system safety.Based on the service bus and parallel computation technology of the smart grid dispatching and control system,service-oriented security check is studied and developed to provide customizable security check service for day-ahead scheduling,schedule adjustment and power grid dispatching operation. Scheduled power flow is the key function in security check.According to the hierarchical dispatching mode of China power grid,a scheduled power flow algorithm based on multi-section power flow control technology is proposed.Voltage and reactive power automatic adj ustment and intelligent adj ustment for non-convergence of power flow are used to improve convergence and rationality.Day-ahead schedule security check for multi-level dispatching is studied.The practicability is enhanced by checking schedule data and counting some technical indices.

节能发电调度在达到节能、环保目标的同时也必须保证电力系统的安全运行，对调整后的节能发电计划进行安全校核是保障系统安全运行的重要环节。针对此，描述了实时发电计划安全校核的实现方法、技术特点和校核步骤等内容。在广东电网中调的实际应用表明，发电计划安全校核可以在节能发电调度的同时有效保障电力系统的安全运行，具有重要的安全意义。

Energy saving generating dispatching is not only aimed at targets of energy saving and environmental protection, but also ensuring safe operation of the power system. It is important to conduct safety check on energy saving generating plan after adjustment for guaranteeing safe operation of the system. Aiming at the above problems,this paper introduces re-alization method,technical characteristics and check steps of real-time generating planning safety check. Practical applica-tion in dispatching control center of Guangdong power grid indicated that generating planning safety check was able to real-ize energy saving generating dispatching and effectively ensure safe operation of the power system at the same time which meant important safety meaning.