[논문]Proposing a New Method for Calculating Reactive Power Service Charges using the Reactive Power Market

Ro, Kyoung-Soo; Park, Sung-Jin

Proposing a New Method for Calculating Reactive Power Service Charges using the Reactive Power Market 원문보기

KIEE international transactions on power engineering, v.4A no.4, 2004년, pp.262 - 267

Ro, Kyoung-Soo (Dept. of Electrical Engineering, Dongguk University) , Park, Sung-Jin (Dept. of Electrical Engineering, Dongguk University)

Abstract ▼ AI-Helper

With the advent of electric power systems moving from a vertically integrated structure to a deregulated environment, calculating reactive power service charges has become a new and challenging theme for market operators. This paper examines various methods for reactive power management adopted throughout various deregulated foreign and domestic markets and then proposes an innovative method to calculate reactive power service charges using a reactive power market in a wholesale electricity market. The reactive power market is operated based on bids from the generating sources and it settles on uniform prices by running the reactive OPF programs of the day-ahead electricity market. The proposed method takes into account recovering not only the costs of installed capacity but also the lost opportunity costs incurred by reducing active power output to increase reactive power production. Based on the result of the reactive OPF program, the generators that produce reactive power within the obligatory range do not make payments whereas the generators producing reactive power beyond the obligatory range receive compensation by the price determined in the market. A numerical sample study is carried out to illustrate the processes and appropriateness of the proposed method.

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문제 정의

In the majority of real-time pricing methods, the objective is to minimize the total production costs of active power or its variations. Choi et al.

제안 방법

In order to find the outcome in a day-ahead electricity market, the result of optimal power flow calculations are used in this study. The used cost function of individual generators for active power generation has the form of equation (4) and their coefficients are shown in Table 2.
The proposed method contributes the system operators to calculate an ancillary service cost of reactive power management and makes power markets active in offering reactive power charges under power system deregulation.
The reactive power market is operated based on bids from generating sources and determines uniform prices by running reactive OPF programs emulating the day-ahead electricity market. The proposed method takes into account recovering not only the costs of installed capacity but also the lost opportunity costs incurred by reducing active power output to increase reactive power production. The settlement of this reactive power market is dependent on the day-ahead electricity market and this is well-suited with the nature that reactive power is a supplement to active power transmission.
This paper examines various methods for reactive power management adopted in several deregulated foreign and domestic markets such as New York, California, England and Wales, and KPX, and then proposes a new method to calculate reactive power service charges using a reactive power market in a wholesale electricity market. Reactive power serving entities will bid for recovering two cost components of the generators supplying reactive power.

대상 데이터

4. The system has 3 generators and 11 branches. The total active and reactive loads are 380MW and 213.

참고문헌 (15)

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