A Comprehensive Approach to Reliability Optimization of Power Supply to Consumers in Power Interconnection with Weak Tie Lines

Galina Fedotova,F.-J Lin,N Voropai,A Kler,R Lis,A.M Foley,C.-I Chen,K Suslov,D Sidorov,Y Sun,P Lombardi,P Komarnicki

doi:10.1051/e3sconf/201911403008

Abstract

A new approach is proposed to ensure the optimum level of power supply reliability of the consumers in a multi-zone power interconnection with limited transfer capabilities of tie lines between the zones at the annual planning of the energy systems operation in a market environment. It is based on a step-by-step solution two problems: of distribution of the total reserve of generating capacity in the power interconnection between the zones, taking into account network restrictions, within the zones – between the operational and maintenance components, optimal for the criterion of reliability and planning maintenance of generating equipment optimal for economic criterion. This approach makes it possible to use for reliability the main means available in the conditions of functioning of electric power systems (EPS) – reserves of generating capacity and planned maintenance of the main equipment. At the same time, reliability optimization is carried out taking into account the interests of different subjects of relations at the management of the power interconnection (System operator, generating companies and consumers).

Highlights

The idea to comprehensively solve the problems of the total generating capacity reserve distribution in power interconnection with limited transfer capabilities of intersystem tie lines and planning maintenance of the main equipment of the electric power systems (EPS) to ensure the reliability of power supply to consumers in the context of centralized control of the electric power industry belongs to Academician Yu.N
The problem of power supply reliability remains relevant for the modern restructured energy systems. Research in this area continues and this paper presents a new approach to solving these problems for the case of annual operation planning of electric power systems in a market environment
A new approach has been proposed to optimize the reliability of power supply to consumers in a multi-area power interconnection with limited transfer capabilities of tie lines between the areas with a view of annual planning of energy systems operation in a market environment

Summary

Introduction

The idea to comprehensively solve the problems of the total generating capacity reserve distribution in power interconnection with limited transfer capabilities of intersystem tie lines and planning maintenance of the main equipment of the EPS to ensure the reliability of power supply to consumers in the context of centralized control of the electric power industry belongs to Academician Yu.N. Today the process of ensuring the electric power system reliability should be based on the distribution of responsibility for reliability among all the stakeholders in the electric power industry Coordination of this responsibility should be based on a combination of government regulation and market principles, including economic, legal and institutional mechanisms. All stakeholders in their areas of responsibility ensure system reliability in EPS, with the main coordinating role assigned to the System operator (SO). The task of the SO is to create generating capacity reserves in the stage of planning the EPS expansion and provide such operation and control conditions under which electrical energy production, transmission, distribution, and consumption, ensuring the required reliability level, are carried out through technological interaction between generating plants, electricity networks and electrical installations of consumers.

Initial positions

Statement of the capacity reserve distribution problem

A mathematical model

Statement of the maintenance planning problem

Conclusion