Impacts of Power Grid Frequency Deviation on Time Error of Synchronous Electric Clock and Worldwide Power System Practices on Time Error Correction
نویسندگان
چکیده
Synchronous electric clocks utilize power grid frequency as their timing reference. Power grid frequency deviation away from its nominal value results in synchronous electric clocks running fast or running slow (also known as the time error). In this article, statistical analysis on time error of synchronous electric clocks around the world is firstly presented using the power grid frequency measurements recorded by the wide-area frequency monitoring network FNET/GridEye. Then, the time error correction (TEC) process provided by electric utilities is analyzed and the worldwide TEC practice is investigated. Eventually, regions of the world where electric utilities provide TEC service are differentiated from those without TEC services. Analytical results demonstrate that the average time error of synchronous electric clocks in North America seems to be less than five seconds, and it has not changed very much over the past few years. On the other hand, the identification results present that up to the end of 2016, many electric utilities around the world, especially in North America and Europe, provided the TEC service to periodically remove the accumulative time error of synchronous electric clocks.
منابع مشابه
Analysis of Wind Speed Forecasting Error Effects on Automatic Generation Control Performance
The main goal of this paper is to study statistical indices and evaluate AGC indices in power system which has large penetration of the WTGs. Increasing penetration of wind turbine generations, needs to study more about impacts of it on power system frequency control. Frequency control is changed with unbalancing real-time system generation and load . Also wind turbine generations have more flu...
متن کاملبهینهسازی پارامترهای کنترلکننده PID برای کنترل فرکانس بار با استفاده از الگوریتم رقابت استعماری
In this paper, considering variant power system parameters and using Imperialist Competitive Algorithm (ICA) and ITAE (Integral Time Absolute Error) criterion we deal with tuning optimal parameter of load frequency PID controller in two-area power systems. To attain the desirable robust performance, selecting the appropriate objective function is important. The obtained simulation results indic...
متن کاملReactive and Active Power Control of Grid WECS Based on DFIG and Energy Storage System under both Balanced and Unbalanced Grid Conditions
This paper focuses on improving the active and reactive power control of Wind Energy Conversion System (WECS) by employing the Battery Energy Storage System (BESS) and controlling the frequency and voltage regulation instantaneously. The proposed power control scheme is composed of two control loops so that they are implemented and designed for active power control and controlling the reactive ...
متن کاملDesigning and Implementing Training Outcome Evaluation Program Using ROE Logic (Case Study: Tehran Regional Electric Company)
The present study aims to design and implement training outcome evaluation program using ROE logic in Tehran Regional Electric Company. The study is applied-developmental in nature and a mixed-method (qualitative and quantitative) approach was used with regard to data collection procedure. The study adopted an evaluative approach based on the Kirkpatrick Four-Level Training Evaluation Model (20...
متن کاملDesigning and Implementing Training Outcome Evaluation Program Using ROE Logic (Case Study: Tehran Regional Electric Company)
The present study aims to design and implement training outcome evaluation program using ROE logic in Tehran Regional Electric Company. The study is applied-developmental in nature and a mixed-method (qualitative and quantitative) approach was used with regard to data collection procedure. The study adopted an evaluative approach based on the Kirkpatrick Four-Level Training Evaluation Model (20...
متن کامل