Almaz Sulaymanov

A Hybrid Simulation Model for VSC HVDC

The motivation for the presented research is based on the needs to develop new methods and tools for obtaining the information required to evaluate the mutual influence of HVDC and HVAC systems. This paper presents the specialized concept of a hybrid simulation for advanced modeling of VSC HVDC. The results obtained by the prototype of specialized hybrid processor of VSC HVDC model confirm the effectiveness of the proposed approach with respect to the detailed representation of commutation process of real power semiconductors and possibility of real-time simulation of all the processes in VSC and EPS as a whole without any decomposition and limitation on their duration.

Platform based on Hybrid Real-Time Power System Simulator for development and research of Intelligent Power Systems with active-adaptive networks

This paper reveals the application of the Hybrid Real-Time Power System Simulator (HRTSim) as a universal hardware and software platform for developing solutions to design and research of Intelligent Power Systems with active-adaptive networks. Also, features of HRTSim and experience of its application for solving tasks of development of methods and tools for control of regimes in Intelligent Power Systems with active-adaptive networks are briefly described in the paper.

Simulation of automatic exciting regulators of synchronous generators in hybrid real-time power system simulator

This paper presents the features of the implementation of automatic exciting regulators (AER) models in the Hybrid Real-Time Power System Simulator (HRTSim). This simulator has unique abilities: simulation without decomposition, no restrictions on the dimension of the simulated power system, realtime simulation, exclusion of methodological error of simulation, usage of full and adequate models of primary and auxiliary power system equipment. These features allow using HRTSim for a variety of tasks in the energy sector. The article presents fragments of AER research and setting in Tomsk power system with using of HRTSim.

Development of algorithm of dispatching personnel's possible actions in various regime situations in electric power systems

This article summarizes results of the development of algorithm of dispatching personnels possible actions in various regime situations in electric power systems by using the information and telecommunications decision support system for dispatching personnel of electric power systems (ITDSS DP EPS). The functions of EPS operational control for normal, emergency and post-emergency cases were considered. The article presents the results of ITDSS DP EPS software development. Examples of use of the developed decision support algorithm are given in the article.

Simulation of transmission lines phase-comparison protection for optimization its settings

The methodology of development of adequate high-frequency phase comparison line protection modeling tools is given in the article. These tools are proposed to be used for phase comparison protection settings optimization with using arrays of instantaneous values of particular primary regime information that can be obtained by emergency events recorders or appropriate electric power systems (EPS) simulators. Research results confirm mentioned features and capabilities of developed RPA modeling tools.

Universal mathematical model of three-phase electrical transmission lines

Basis and synthesis of electrical transmission lines mathematical model, which allows reproducing the whole range of both normal processes and fault within three-phase electrical transmission lines of different length, taking into consideration electromagnetic influence of parallel chains and probable corona effect are considered.

Hybrid real-time simulator of power system for advanced simulation of the FACTS and HVDC system based on voltage source converter

The motivation of the presented research is based on the need to develop new methods and tools for obtaining information required to evaluate mutual influence between high voltage direct and alternating current systems. This paper presents a specialized concept of hybrid simulation for advanced simulation of the Flexible Alternating Current Transmission System (FACTS) and High Voltage Direct Current Transmission System (HVDC) based on Voltage Source Converter (VSC). The presented simulation results of the developed hybrid model of VSC confirm the achievement of the desired properties of the model and the effectiveness of the proposed solutions.

Testbed Based on Hybrid Real-Time Power System Simulator for Setting up and Testing of Protection and Control Systems

In this article we will focus on creating of testbed based on hybrid real-time power system simulator (HRTSim) for setting up and testing of relay protection (RP), automatic (AS) and control systems (CS), as well as the opportunities and prospects of its application. The simulator has physical outputs, which allows using it for close-loop testing of RP, AS and CS. Physical currents and voltages generated in the simulator during a simulation process can be transmitted to the analog inputs of tested device by means of external amplifiers. There are no restrictions on the dimension of the simulated power system and time interval for HRTSim. These opportunities and usage of adequate models of primary and auxiliary power system equipment allows reducing the number of possible equivalenting and creating as closely as possible to the real conditions for setting up and testing of any RP, AS and CS, including wide-area protection and control systems.

Measure of reliability tools for simulating electric power systems and alternative approach of their verification

The results of study existing problem of validation electric power system simulators are contained in this paper. It is connected with using numerical solution of stiff nonlinear system of differential equations of high dimensionality, describing the processes in real electrical power systems for all possible normal, emergency and post-emergency conditions. Theoretical and practical results of impossible accuracy and reliable solutions of such system by using digital tools are given. Alternating approach called hybrid simulation for solution this problem is described. The created in the framework of this approach tool can be serve as a source of reference data and used for the validation of digital simulation tools.

Problem of Reliability, Verification of Electrical Power Systems Simulation and Ways of Solving it

The analysis of existing problem of reliability and verification of simulation tools of electrical power systems is presented in this article. It is proved, that the solution of this problem is not possible by using simulation tools utilizing numerical methods. Described the concept and tools are based on alternative way of electrical power systems simulation called the hybrid simulation. This way provides an effective solution to the problem of reliability and verification simulation tools of electrical power systems.