Centralized Support Distributed Voltage Control by Using End-Users as Reactive Power Support

Abessi, Ahad; Vahidinasab, Vahid; Ghazizadeh, Mohammad Sadegh

doi:10.1109/tsg.2015.2410780

Cited by 82 publications

(68 citation statements)

References 28 publications

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“…Most of the control methods are available at transmission level and substation level. At the transmission level actions such as switching of transmission lines [5], using flexible Ac transmission system (FACTS) devices like static synchronous compensator (STATCOM), A static VAR compensator (SVC) and unified power flow controller (or UPFC) which are electrical devices for providing fast-acting reactive power compensation on high-voltage electricity transmission networks [1,8,9,14]. At sub station level synchronous condensers and shunt capacitors are used.…”

Section: Literature Surveymentioning

confidence: 99%

“…It can be calculated for both Power variation and voltage variation in the system for change in injected reactive power amount. Based on this sensitivity analysis we can find the behavior of the system for external reactive power injection [1]. This method can be used for distribution system, for selection of bus location using end users as reactive support.…”

Section: Literature Surveymentioning

confidence: 99%

“…Change in power loss is calculated by comparing power loss of the base case system. Using this matrix, the bus with Maximum Reduction in power loss is found and thus determining the optimal location of reactive power injection [1]. Power loss reduction matrix is also called sensitivity matrix corresponding to changes in power loss.…”

Section: Power Loss Reduction Matrixmentioning

confidence: 99%

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Reactive Power Support from End Customer Equipment

Jyothi

Yemula

2017

Technol Econ Smart Grids Sustain Energy

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As a part of prosumer concept, reactive power supply using the end user equipment is evolving. Reactive power injection using end user appliances is used for voltage profile correction, reduction in losses and improvement in power factor. In a radial distribution network, when there are reactive power supplying devices available at different locations, selection of reactive power source will have greater impact on the network. So, the main focus of this paper is to find the optimal location of the bus for reactive power injection based on availability. Since the objective is to reduce losses in the network optimal location is found using the sensitivity matrix for power loss with changes in reactive power injection. Also, the system energy is energy is computed. In order to demonstrate the proposed algorithm a case study is done for IEEE 33 bus radial distribution system in MATLAB programming. Results obtained show that the reduction in losses is about 20%. This proves that end user reactive power equipment is helpful in improving the network profile.Keywords Prosumer · Reactive power support · End user equipment · Voltage profile Charan Teja S

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Section: Literature Surveymentioning

confidence: 99%

Section: Literature Surveymentioning

confidence: 99%

Section: Power Loss Reduction Matrixmentioning

confidence: 99%

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Reactive Power Support from End Customer Equipment

Jyothi

Yemula

2017

Technol Econ Smart Grids Sustain Energy

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“…But emerging the smart grid and devices with power electronic interface enables end users to participate in Volt/VAR programs. The Q‐C bus selection depends on many criteria that in the reviewed literatures, sensitivity analysis is only used for this purpose. However, for example, a bus with highest sensitivity and limited available reactive power injection capacity is not surely the best bus.…”

Section: Proposed Algorithmmentioning

confidence: 99%

“…Devices using the power electronic interface for their power supply have the ability to interact in power quality programs. This paper investigates the use of these emerging smart grid devices called “responsive end‐user devices (REDs).” Such devices can include the plug‐in hybrid electric vehicle/electric vehicle (PHEV/EV), personal computers, appliances, elevators, and uninterruptible power supply (UPS) systems . All the mentioned devices are at distribution grid layer, and by using them, certain local problems can be solved without intervention of top layers.…”

Section: Introductionmentioning

confidence: 99%

Exploiting end-users capability in voltage support by means of power electronic transformer

Etemad

Ghazizadeh

Ahmadian

2017

Int Trans Electr Energ Syst

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Summary Studying reactive power has been initiated since the inception of power grids. In the past, the capacitor banks and synchronous compensators were only used to provide the reactive power. Nowadays, the game is changed, and power electronic devices have come to help with this issue. End‐users inverter‐based power supplies had the ability to provide real and reactive power support at the distribution level. The other device that can be used to enhance the distribution system power quality is power electronic transformer (PET) as an emerging new type of power converter. The PETs incorporated the benefits of the power electronics into conve7ntional power transformers. This paper focuses on the effects of reactive power interaction of end users and PETs in distribution level and investigates their effects on distribution level voltage profile.

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Optimal coordination between PV smart inverters and different demand response programs for voltage regulation in distribution system

Gupta

Ghose

Chatterjee

2020

Int Trans Electr Energ Syst

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Summary With the increase in the number of renewable energy resources (RES) in the distribution network, the distribution system operators are facing several operational challenges to maintain network power quality and reliability. The stochastic nature of wind speed and solar irradiance may cause voltage sag and swell during high and light load conditions, respectively. Again, owing to low X/R ratio in the active distribution network, the voltage becomes more susceptible to change with the change in net real power injections in the bus, unlike high voltage networks. This article proposes an optimal framework for voltage regulation in active distribution system using the available flexibility of load reduction based on demand response programs, and reactive power injection capability of a smart inverter (SI) of the PV system, where the coordination between the two is considered. However, for adequate grid voltage support, the selection of buses for DR programs is based on voltage sensitivity analysis. This article proposes a simple and effective technique to determine the sensitivity of a DR bus on the voltage profile of the network. The decision for the optimal location for DR resource, DR magnitude, and SI reactive power is finalized using Nondominated Sorting Genetic Algorithm II (NSGA‐II) in a bid to minimize the DR procurement cost, SI ageing cost and network loss. The work also incorporated DR modeling and probabilistic model for RES generation with the consideration of uncertainty involved in both the cases. The modified IEEE 33‐bus distribution system is chosen for authenticating the suggested technique.

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Centralized Support Distributed Voltage Control by Using End-Users as Reactive Power Support

Cited by 82 publications

References 28 publications

Reactive Power Support from End Customer Equipment

Reactive Power Support from End Customer Equipment

Exploiting end-users capability in voltage support by means of power electronic transformer

Optimal coordination between PV smart inverters and different demand response programs for voltage regulation in distribution system

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