Calculation of the Controlling Actions under Conditions of Static Stability in the Software of a Centralized System of a New Generation of Antiemergency Automation

Abstract

The features of an algorithm for choosing the controlling actions to maintain static stability in a centralized system of a new generation of antiemergency automation is discussed. This algorithm is directed towards modern software-hardware systems and enables problems of automatic antiemergency control to be solved using the well-known classical description of processes in power systems, which makes it more flexible and universal. The centralized system of antiemergency automation with the algorithm presented in the paper has been introduced and functions successfully in the Vostok power system.A new generation of centralized antiemergency automation system. The systems operator and technical center of the Unified Power System JSC has organized the development of a new generation of this system. The main problems are as follows:-to operate the algorithm using additional computational methods, ensuring that it was transparent, accessible, and that it could be used to solve different theoretical problems;-to develop an algorithm and software for choosing the controlling actions (CA) to ensure stability in the dynamic phase of the transient;-to ensure maximum universality, i.e. the possibility of using it in power circuits of any configuration; -to increase the speed of response of the antiemergency automation system by changing to a parallel calculation of the triggering devices.The rejection of nontraditional methods of calculation, and also the extension of the region in which the system operated, as a result of the choice of the controlling action to ensure stability in the dynamic phase of the transient, required a radical redevelopment of the technological algorithm, and also of the software using new technical developments in the area of computational techniques and telecommunications.The possibility of constructing a new generation of centralized antiemergency automatic systems was based on the availability of new computational techniques (primarily new processors), and the increase in the quality of the systems for the acquisition and transmission of teledata in power systems and experience in using centralized antiemergency automation systems of the previous generation. Despite these prerequisites and, it would seem, a more obvious approach to constructing a technological algorithm using traditional methods, when developing the algorithm considerable difficulties were encountered, and the construction of the centralized system based on a new generation of algorithms required a considerable amount of time.The new algorithms of the centralized system, developed at the Scientific and Technical Center of the Unified Power System, used modern software-hardware systems, and were able to formulate and solve problems of automatic antiemergency control based on the well-known classical description of processes in power systems.In this paper we present an algorithm for estimating the aperiodic static stability and calculating the controlling actions to ensure the standard reserve of active power in the calculated d...

Structure of emergency automatics in UPS of Russian Federation

“…PASCS of power system is engineered as centralized emergency automatics system (CEAS), providing ability of operation both in centralized and decentralized modes. System is created according to hierarchic principle and includes two levels of hierarchy control [9,10]. HSC CEAS performs cyclic evaluation of power system condition using power system mathematical model, calculates steady-state and transient electrical modes and generates tables of control actions (TCA) that are include for given pickup elements the correlation between pickup elements (PE), type, scope and location of appliance of CA (figure 2).…”