Integration of Power System Real-Time Digital Simulator and Optimal Power Flow

2012 ◽  
Vol 590 ◽  
pp. 195-200
Author(s):  
Meng Jen Chen ◽  
Yu Chi Wu ◽  
Wen Shiush Chen ◽  
Pei Wei Huang ◽  
Tsung Wei Tsai
Keyword(s):  
Steady State ◽  
Power System ◽  
Real Time ◽  
Power Flow ◽  
Optimal Power Flow ◽  
Optimal Power ◽  
Communication Architectures ◽  
Analog Channels ◽  
Real Time Digital Simulator ◽  
Steady State Performance

In this paper, a framework for integrating a real-time digital simulator and EMS-OPF program is proposed and addressed, through two different communication architectures: asynchronous and synchronous. Validation of these communication architectures is carried out by Ethernet UDP/IP (asynchronous) and analog channels of IO card (synchronous). With this framework, both dynamic and steady-state performance of a power system can be studied easily in real-time mode.

scholarly journals A Progressive Period Optimal Power Flow for Systems with High Penetration of Variable Renewable Energy Sources

Energies ◽  
2021 ◽  
Vol 14 (10) ◽  
pp. 2815
Author(s):  
Zongjie Wang ◽  
C. Lindsay Anderson
Keyword(s):  
Renewable Energy ◽  
Power System ◽  
Real Time ◽  
Power Flow ◽  
Optimal Power Flow ◽  
Renewable Energy Sources ◽  
Wind Farms ◽  
Energy Sources ◽  
Power System Operations ◽  
Optimal Power

Renewable energy sources including wind farms and solar sites, have been rapidly integrated within power systems for economic and environmental reasons. Unfortunately, many renewable energy sources suffer from variability and uncertainty, which may jeopardize security and stability of the power system. To face this challenge, it is necessary to develop new methods to manage increasing supply-side uncertainty within operational strategies. In modern power system operations, the optimal power flow (OPF) is essential to all stages of the system operational horizon; underlying both day-ahead scheduling and real-time dispatch decisions. The dispatch levels determined are then implemented for the duration of the dispatch interval, with the expectation that frequency response and balancing reserves are sufficient to manage intra-interval deviations. To achieve more accurate generation schedules and better reliability with increasing renewable resources, the OPF must be solved faster and with better accuracy within continuous time intervals, in both day-ahead scheduling and real-time dispatch. To this end, we formulate a multi-period dispatch framework, that is, progressive period optimal power flow (PPOPF), which builds on an interval optimal power flow (IOPF), which leverages median and endpoints on the interval to develop coherent coordinations between day-ahead and real-time period optimal power flow (POPF). Simulation case studies on a practical PEGASE 13,659-bus transmission system in Europe have demonstrated implementation of the proposed PPOPF within multi-stage power system operations, resulting in zero dispatch error and violation compared with traditional OPF.

scholarly journals Performance Analysis of Distributed Real Time Optimization Technique for Optimal Power Flow Problems

2019 ◽  
Vol 8 (6S3) ◽  
pp. 1380-1384
Keyword(s):  
Power System ◽  
Real Time ◽  
Power Flow ◽  
Optimal Power Flow ◽  
Optimal Operation ◽  
Energy Resources ◽  
Time Varying ◽  
Time Optimization ◽  
Optimal Power ◽  
Real Time Optimization

For conventional electric power system, penetration of high level of distributed generation is new challenge. Distributed energy resources produces on-site electricity, by which it reduces the requirement of new transmission line set up and also provides reduction of line losses. In earlier days, centralized optimization approaches have been the primary way of optimization of power system. In centralized approach of optimization, optimal power flow operation is performed by collecting information at central controller. But because of increase of size of power system and enhancement of distributed resources from demand side various problem arises in performing computation and control in centralized approach. Optimal operation of power flows are utilized in planning and scheduling of generation of power. Most of the non-conventional resources are located at the distribution grid. So to handle the uncertainness associated in renewable energy resources, load demands etc. there is a need of development of distributed algorithm for AC-optimization problems. This paper realizes in real time optimization and to track the time varying OPF problem and for numerical optimization method different quasi-Newton methods are used. For time varying loads there is a requirement of an algorithm technique that can track variant load on faster time scale. So, to address these challenges various approaches or techniques are presented.

Comparative analysis of a new VSC‐optimal power flow formulation for power system security planning

2020 ◽  
Vol 30 (3) ◽  
Author(s):  
Oludamilare Bode Adewuyi ◽  
Harun Or Rashid Howlader ◽  
Isaiah Opeyemi Olaniyi ◽  
David Abdul Konneh ◽  
Tomonobu Senjyu
Keyword(s):  
Comparative Analysis ◽  
Power System ◽  
Power Flow ◽  
Optimal Power Flow ◽  
System Security ◽  
Power System Security ◽  
Optimal Power ◽  
Security Planning
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