scholarly journals The Localization of Current Leakage in the Distribution Network Based on Automated Meter Reading and Control System (AMRCS) Data

2019 ◽  
Vol 19 (4) ◽  
pp. 79-86
Keyword(s):  
Control System ◽  
Distribution Network ◽  
Current Leakage ◽  
Automated Meter Reading ◽  
And Control

Electricy Losses Management in Distribution Network as a Composition of Automated Meter Reading and Control System (AMRCS)

2021 ◽  
Vol 22 (4) ◽  
pp. 191-199
Author(s):  
T. T. Omorov ◽  
B. K. Takyrbashev ◽  
T. D. Koibagrov
Keyword(s):  
Control System ◽  
Distribution Network ◽  
Asymmetry Factor ◽  
Main Function ◽  
Electric Networks ◽  
Criterion Functions ◽  
Three Phase ◽  
Automated Meter Reading ◽  
Technical And Economic Indicators ◽  
And Control

The problem of electricity losses management in distribution electric networks (DEN) operating in conditions of asymmetry of currents and voltages is reviewed. As it is known, the asymmetry factor leads to significant losses of active power and, as a result, decreases the efficiency and technical and economic indicators of the DEN. The purpose of the control is to minimize technical energy losses in the distribution network based on the creation of an automatic control system (ACS) for the process of balancing a three-phase network in the composition of automated meter reading and control system (AMRCS). The latter are currently being widely implemented to automate information processes in DEN. However, AMRCS does not include in its composition technologies designed to solve the problem under review. A method is proposed for constructing a digital ACS controller, the main function of which is to maintain phase currents at the network input at a given level in real time. The concept of the method is based on the idea of the desired redistribution of electricity flows between the phases of the distribution network by appropriate switching of single-phase consumers (customers) so that the minimum spread of phase currents from their specified level is ensured. To achieve the goal of control, criterion functions are constructed that determine the qualitative indicators of the functioning of the ACS. Algorithms for the functioning of the digital controller and the formation of control actions on the subject have been developed. The latter are a digital code containing data on the coordinates of electricity meters of consumers of a three-phase network to be switched to another phase.

scholarly journals For the construction of subsystem for power line diagnostic states of distribution networks as a part of AMRCS

2020 ◽  
Vol 216 ◽  
pp. 01042
Author(s):  
Turatbek Omorov ◽  
Taalaibek Koibagarov ◽  
Tilebaldy Zhanybaev ◽  
Beishenaly Takyrbashev ◽  
Aleksey Boronin
Keyword(s):  
Control System ◽  
Information Systems ◽  
Diagnostic Criteria ◽  
New Technologies ◽  
Distribution Networks ◽  
Power Line ◽  
Research Results ◽  
Diagnostic Problems ◽  
Automated Meter Reading ◽  
And Control

At present, in order to automate and informative processes in distribution zones (DZ) with a voltage of 0.4 kV, new technologies have found wide application in the form of automated meter reading and control system (AMRCS). However, as part of these information systems, there are no technologies focused on solving diagnostic problems. The report proposes methodological and algorithmic foundations for constructing a subsystem for diagnosing the states of wires of the main lines of DZ. Diagnostic criteria are formulated based on the assessment of the level of their run-out. The research results are aimed at improving the existing AMRCS and increasing the reliability of distribution networks.

scholarly journals Digital Control of Electric Power Flows in Unbalanced Distribution Networks as Part of The Automated Metering and Control System

2021 ◽  
pp. 38-46
Author(s):  
T. Omorov ◽  
B. Takyrbashev ◽  
K. Zakiriaev ◽  
T. Koibagarov
Keyword(s):  
Control System ◽  
Power Distribution ◽  
Distribution Network ◽  
Distribution Networks ◽  
Digital Controller ◽  
Information Control ◽  
Power Distribution Networks ◽  
Voltage Unbalance ◽  
Three Phase ◽  
And Control

This paper aims to address the problem of controlling the electricity flows in power distribution networks (PDN) operating under current and voltage unbalance. As is known, the unbalance factor is responsible for significant losses of active power and, therefore, is detrimental to the PDN efficiency and technical and economic performance. The purpose of control is to minimize technical power losses in the distribution network. This is to be achieved by building an information control system (ICS) for balancing a three-phase network as part of the automated metering and control system (AMCS). The latter is currently being widely adopted to automate information processes in PDNs. However, the AMCS does not include technologies for solving the problem in question. We propose an algorithm of the digital controller operation for the ICS. Its primary function is to maintain phase power at a given level in real-time. The algorithm concept is based on the idea of required redistribution of electricity flows between the phases of the distribution network by appropriately switching single-phase loads of consumers (users) to ensure a minimum spread of phase powers relative to their required level. To achieve the goal of control, we construct criterion functions that determine qualitative indices of the ICS operation and develop computational schemes for their minimization. Control actions to be generated by the digital controller and performed on the facility represent a digital code that contains data on the coordinates of three-phase network loads to be switched to another phase.

scholarly journals To the problem of mathematical modelling of the three-phase asymmetrical distribution network

2020 ◽  
Vol 22 (1) ◽  
pp. 93-102
Author(s):  
T. T. Omorov ◽  
B. K. Takyrbashev ◽  
R. Ch. Osmonova
Keyword(s):  
Distribution Network ◽  
Complex Form ◽  
State Variables ◽  
Identification Procedure ◽  
Asymmetrical Distribution ◽  
Three Phase ◽  
Automated Meter Reading ◽  
Definition Of ◽  
And Control ◽  
Direct Use

The asymmetrical distribution electric network is considered in the conditions of functioning of the automated meter reading and control system (AMRCS). The problem of identification of its mathematical model in a complex form which comes down to definition of phase shifts of the variables (currents, tension) defining an electric status of three-phase network is formulated. The method of its solution based on the mathematical ratios describing functional communications between state variables and use of algorithms of parameter optimization is offered. The realization of identification procedure of model of a distribution network is enabled with direct use of the basic data obtained on communication channels from subscriber's meters of the electric power. The method can be used for a solution of a number of functional tasks as a part of the AMRCS oriented for diagnostics of statuses of a trunk line and energy losses in a distribution network.

Development of a Jacobian Module for Advanced Pulp and Paper Simulation and Control

TAPPI Journal ◽  
2009 ◽  
Vol 8 (1) ◽  
pp. 4-11
Author(s):  
MOHAMED CHBEL ◽  
LUC LAPERRIÈRE
Keyword(s):  
Control System ◽  
Nonlinear Behavior ◽  
Simulation Software ◽  
Pulp And Paper ◽  
Pid Controllers ◽  
Tuning Parameters ◽  
Pid Tuning ◽  
Fixed Set ◽  
And Control ◽  
Operating Points

Pulp and paper processes frequently present nonlinear behavior, which means that process dynam-ics change with the operating points. These nonlinearities can challenge process control. PID controllers are the most popular controllers because they are simple and robust. However, a fixed set of PID tuning parameters is gen-erally not sufficient to optimize control of the process. Problems related to nonlinearities such as sluggish or oscilla-tory response can arise in different operating regions. Gain scheduling is a potential solution. In processes with mul-tiple control objectives, the control strategy must further evaluate loop interactions to decide on the pairing of manipulated and controlled variables that minimize the effect of such interactions and hence, optimize controller’s performance and stability. Using the CADSIM Plus™ commercial simulation software, we developed a Jacobian sim-ulation module that enables automatic bumps on the manipulated variables to calculate process gains at different operating points. These gains can be used in controller tuning. The module also enables the control system designer to evaluate loop interactions in a multivariable control system by calculating the Relative Gain Array (RGA) matrix, of which the Jacobian is an essential part.

Sign in / Sign up

Export Citation Format

Share Document