Economical and Reliable Expansion Alternative of Composite Power System under Restructuring

Abstract

The paper intends to select the most economical and reliable expansion alternative of a composite power system to meet the expected future load growth. In order to reduce time computational quantity, a heuristic algorithm is adopted for composite power system reliability evaluation is proposed. The proposed algorithm is based on Monte-Carlo simulation method. The reliability indices are estimated for system base case and for the case of adding peaking generation units. The least cost reserve margin for the addition of five 20MW generating units sequentially is determined. Using the proposed algorithm an increment comparison approach used to illustrate the effect of the added units on the interruption and on the annual net gain costs. A flow chart introduced to explain the basic methodology to have an adequate assessment of a power system using Monte Carlo Simulation. The IEEE RTS (24-bus, 38-line) and The Jordanian Electrical Power System (46-bus and 92-line) were examined to illustrate how to make decisions in power system planning and expansions.

Bulk power system availability assessment with multiple wind power plants

“…Monte Carlo simulation and state enumeration have been the traditional methodologies used to assess the availability of bulk power systems [3,[24][25][26][27]. Some commercial software have reliability assessment tools based on these techniques.…”

“…Although many PEM schemes have been suggested [12][13][14][15][16] and have been used to solve the problem of probabilistic power flow [15,26], this paper proposes the use of the 2m+1 PEM proposed by Hong in [16]. The purpose is to compute the common reliability (availability) indices: Loss of Load Probability (LOLP) and Expected Energy Not Supplied (EENS) as are defined at [26,27], using the state enumeration method.…”

Quantification of operating reserves with high penetration of wind power considering extreme values

“…The power unit generating limits in (10). The constraint about the capacity limits, the tap changing and phase shifting for transformers are given in (11).…”

“…In the unit-commitment formulation, a stochastic approach is used, particularly, the authors in [7] report about the use of scenarios for generation with distribution probability functions, the demand is considered constant. Formulations with a stochastic approach has been suggested to manage wind power uncertainty in power system operation [8][9][10][11] and in microgrids in [12]. The flexibility in power system operation will be a critical issue under high penetration of wind power to deal with uncertainty and intermittency.…”

Electrical grid reliability assessment by fault tree analysis

“…Most of the electrical grid reliability assessment approaches use approximation orsimplification of the problem to degrade the problem at a solvable level. The most economical and reliable expansion alternative of a power system to meet the expected future load growth using a heuristic algorithm is selected in [3]. In [4] a real-time design of efficient monitoring and control of grid power system is presented using the remote cloud server to fetch, monitor and control the real-time power system data to improve the universal control and response time.…”