Power Flow Control in Systems With Facts Devices

Gotham, Douglas J.; Heydt, G.T.

doi:10.1080/07313569808955869

Cited by 13 publications

(6 citation statements)

References 14 publications

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“…The sending bus is presented as PV-type while the receiving bus is represented as PQ-type, then active and reactive loads are embedded at these buses. It is important to point out that the voltage of PV bus adjusted at the specified value and the parameters of UPFC are calculated based on non-linear equations after convergence of load flow [5,6]. The main advantage of this model is the simplicity to be applied into power flow algorithm while the disadvantage of this technique is that UPFC is presented with single control mode to control the active, reactive and voltage simultaneously not separately.…”

Section: Literature Reviewmentioning

confidence: 99%

“…• Else if P sp is minimised to zero and I se still violated, set P sp = 0 and minimise Q sp then repeat the steps (6) to (16). (ii) If the Q sp method is selected; minimise Q sp then repeat the steps from (6) to (16).…”

Section: Solution Process Of Load Flow With Developed Upfc Model Consmentioning

confidence: 99%

“…(i) If the P sp method is selected; modify P sp according to (40), then repeat the steps from (6) to (16). (ii) If the Q sp method is selected; modify Q sp according to (41), then repeat steps from (6) to (16). B.…”

Section: Solution Process Of Load Flow With Developed Upfc Model Consmentioning

confidence: 99%

See 2 more Smart Citations

Development of UPFC operating constraints enforcement approach for power flow control

Ebeed

Kamel

2019

IET Generation, Transmission & Distribution

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Section: Literature Reviewmentioning

confidence: 99%

Section: Solution Process Of Load Flow With Developed Upfc Model Consmentioning

confidence: 99%

See 1 more Smart Citation

Development of UPFC operating constraints enforcement approach for power flow control

Ebeed

Kamel

2019

IET Generation, Transmission & Distribution

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“…In addition of that the transmission line and the controller resistances are neglected. The decoupled model was presented in [9,10], to represent the controllers by this method, the send end and the received end buses are separated. Then, the sending end bus is represented as a PV bus while the receiving end is represented as a PQ bus.…”

Section: Introduction a Literature Surveymentioning

confidence: 99%

Effective Modeling of OUPFC Into Newton-Raphson Power Flow Considering Multi-Control Modes and Operating Constraints

et al. 2021

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The Optimal Unified Power Flow Controller (OUPFC) is an efficient series-shunt controller that is incorporated to system to control the power flow through the transmission lines. Modeling of such controller is a challenge task due the required complex modifications of the Newton Raphson power (NR) flow to consider the parameters of the OUPFC. The aim of this paper includes (1) presenting an efficient novel model of the OUPFC into NR power flow, (2) avoiding the complicities of modeling the parameters of the OUPFC into power flow solution, (3) multi-control modes of the OUPFC is established to control the active and reactive powers concurrently or separately and, (4) handling the violation of the operating constraints by using developed methods. The proposed model is based on the power injection representation where the parameters of the OUPFC are represented as injected loads as a function of the pre-requested control variables (specified values). Therefore, the complicities of including its parameters are reduced. The developed methods for handling the violations of the operating constraints are based on modifying the specified values as a function of the maximum limits of the operating constraints. The proposed OUPFC model and the developed constraints handling methods are implemented on IEEE 14-bus, IEEE 30-bus, IEEE 57-bus and IEEE 118-bus test systems. The simulation results verified the feasibility and robustness of the presented model into load flow analysis. in addition, effectiveness of the proposed approaches for handling the operating constraints of OUPFC.INDEX TERMS Power Flow, FACTS, Optimal Unified Power Flow Controller, The operating constraints. . NomenclatureThe injected current to sending bus. The specified current passing through transmission line.ℎThe shunt current. The current between bus j & receiving bus r.The maximum series current. The injected voltage.The maximum injected voltage. The voltage of the sending bus. The voltage at bus j.Receiving voltage.The series impedance of the OUPFC The series impedance of the TL.

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“…References [8]- [10] investigate using Flexible AC Transmission System (FACTS) devices for power flow control. Reference [11] illustrates three generic types of FACTS devices for power flow control.…”

Section: Introductionmentioning

confidence: 99%

Load growth and power flow control with DSRs: Balanced vs unbalanced transmission networks

Omran

Broadwater

Hambrick

et al. 2017

Electric Power Systems Research

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An important issue in today's power system is the need to analyze and determine the adequacy of transmission capacity. There is a need for approaches to increase transmission system capacity without construction of new transmission facilities, all while assuring secure operation of the grid. Distributed Series Reactors (DSRs) are a new smart grid technology that can be applied to control flows in transmission or distribution systems. DSRs can be used to balance phase flows in a single line as well as to control the distribution of flow in a meshed system. This paper investigates DSRs to control power flow to alleviate overloads due to increased power transfer. The IEEE 39 bus standard model is modified to a 3-phase unbalanced transmission model with 345 kV lines that accounts for tower geometry. Using the symmetrical components transformation, a balanced, 3-phase model is then derived from the unbalanced, 3-phase model. DSR designs based on the unbalanced, 3-phase model and the balanced, 3-phase model are compared and used to demonstrate the effectiveness of DSR control in handling load growth. Only unbalanced impedances are addressed i.e., non-transposed lines, but the effects of impedance unbalance are shown to be significant on the resulting DSR design.

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Power Flow Control in Systems With Facts Devices

Cited by 13 publications

References 14 publications

Development of UPFC operating constraints enforcement approach for power flow control

Development of UPFC operating constraints enforcement approach for power flow control

Effective Modeling of OUPFC Into Newton-Raphson Power Flow Considering Multi-Control Modes and Operating Constraints

Load growth and power flow control with DSRs: Balanced vs unbalanced transmission networks

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