Outline
- Abstract
- I. Nomenclature
- II. Introduction
- III. Voltage Profile Estimation
- IV. Estimation of Voltage Profile Change Due to the Injection of Reactive Power
- V. Proposed System Structure
- VI. Optimal Operation of Switched Capacitor Banks in Distribution Feeders Algorithm: Single Capacitor Case
- VII. Optimal Operation of Switched Capacitor Banks in Distribution Feeders Algorithm: General Case
- VIII. Simulation Results
- IX. Conclusion
- References
رئوس مطالب
- چکیده
- کلیدواژه ها
- مقدمه
- تخمین پروفیل ولتاژ
- تخمین تغییر پروفیل ولتاژ ناشی از تزریق توان راکتیو
- ساختار سیستم ارائه‌شده
- عملکرد بهینه بانک‌های خازنی سوئیچ‌شده در الگوریتم فیدرهای توزیع: موردی با یک خازن
- عملکرد بهینه بانک‌های خازنی سوئیچ‌شده در الگوریتم فیدرهای توزیع: مورد کلی
- نتایج شبیه‌سازی
- تغییر پروفیل ولتاژ ناشی از تزریق توان راکتیو
- کنترل بهینه توان راکتیو
- نتیجه‌گیری
Abstract
In this paper a decentralized reactive power control scheme is proposed to optimally control the switched capacitor in the system in order to minimize system losses and maintain acceptable voltage profile. The proposed technique is based on placing a remote terminal unit (RTUs) at each DG and each at line capacitor. These RTUs being coordinated together through communication protocols form a multiagent system. Novel decentralized algorithm is proposed to estimate the voltage profile change as a result of injecting reactive power at the capacitor bus. Simulation results are presented to show the validity and the effectiveness of the proposed technique.
Keywords: Distribution generation - distribution systems - multiagent system - reactive power controlConclusions
A decentralized reactive power control scheme was proposed in this paper to efficiently control the switched capacitors of the distribution feeder in order to minimize system losses while maintaining feeder’s voltage profile. The proposed scheme is based on the coordination of several RTU located at DG buses and capacitor buses. These RTU form a multiagent system. Novel decentralized algorithm for the estimation of the change of the voltage profile due to the injection of reactive power at the capacitor bus was presented. Simulation results showed the effectiveness of the proposed technique in optimally managing the reactive power resources of the system. The proposed technique will help in the realization of advanced distribution automation by optimally control the switched capacitors of the system to maintain acceptable voltage profile, minimize the system losses and integrate more DGs in distribution systems by effective coordination between DGs and capacitors.