Identification of Single-Phase Reclosing Fault on AC Line Based on Virtual Instantaneous Power

2020 ◽  
pp. 1-1
Author(s):  
Jing Ma ◽  
Yuchong Wu ◽  
Pei Li ◽  
A. G. Phadke
Keyword(s):  
Single Phase ◽  
Instantaneous Power

scholarly journals Interpretasi Praktis Terhadap Istilah-Istilah Daya pada Rangkaian Listrik Satu Fase Sinusoidal

2021 ◽  
Vol 1 (1) ◽  
Author(s):  
Adlan Bagus Pradana ◽  
Unan Yusmaniar Oktiawati ◽  
Jimmy Trio Putra ◽  
Dhanis Woro Fittrin Selo Nur Giyatno ◽  
Atikah Surriani
Keyword(s):  
Computer Simulations ◽  
Daily Activity ◽  
Power Analysis ◽  
Single Phase ◽  
Reactive Power ◽  
Electrical Engineering ◽  
Active Power ◽  
General Application ◽  
Instantaneous Power ◽  
Complex Power

In electrical engineering, there are several power terms; active power, reactive power, instantaneous active power, instantaneous active power, instantaneous power, apparent power and complex power. Even though are used in daily activity, electrical practitioners are facing difficulty to explain those terms practically. This paper tries to solve those difficulty by interpret those term in practical way. Firstly, each power term are defined theoretically. Then those terms are presented mathematically. Next, power in single phase sinusoidal electric network is analyzed. Theoretical definition result is connected with power analysis result. Computer simulations are held to strengthen interpretation result. Considering the width of discussion area, this paper only covers most general application, that is single phase sinusoidal network.

scholarly journals Single Phase Power Factor Improvement Based Instantaneous Power P Q Theorm

2020 ◽  
Vol 1 (2) ◽  
pp. 42-53
Author(s):  
Setiyono Setiyono ◽  
Bambang Dwinanto
Keyword(s):  
Power System ◽  
Single Phase ◽  
Current Source ◽  
Active Power Filter ◽  
Harmonic Signal ◽  
Wave Form ◽  
Power Filter ◽  
Instantaneous Power ◽  
Source Wave ◽  
Power Factor Improvement

This paper presents how to harmonic disturbance reduce on single phase power system. One of the most popular method is harmonic signal extraction with instantaneous power p q theorm. This algorithm implemented to harmonic cencellation by active power filter circuit be paralled with the non linier load. This filter generates of current compensation that are injected into the grid to improve power quality. This Filter is built by an inverter circuit that consists of a mosfet switch array and capasitor mounted on DC link side. Two types of loads are resitive inductive and resistive capasitive produce of current source wave form that close pure sinusoid. Simulation results show the THD index fell to the level of 2.7% in accordance with IEEE 519 standard rules which states that the harmonics content of the power system may occur below 4%, indicating that the power system can be categorized as having good quality.

A New Definition of Non-Active Power

2006 ◽  
Vol 7 (4) ◽  
Author(s):  
Harnaak Khalsa ◽  
Jingxin Zhang
Keyword(s):  
Energy Transfer ◽  
Unique Solution ◽  
Single Phase ◽  
Active Power ◽  
Instantaneous Power ◽  
Unique Definition ◽  
Phase Systems ◽  
Definition Of

There is no unique definition of non-active power for nonsinusoidal systems. A new definition of non-active power is proposed in this paper. This definition is based on energy transfer and provides a unique solution for non-active power of single-phase systems under both sinusoidal and non-sinusoidal conditions. An example is used to illustrate the use of this new definition. Energy transfer calculated using the new definition provides the same energy transfer determined from the non-sinusoidal non-active instantaneous power. This is consistent with the existing definition of active power that is also based on energy transfer.

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