Dual-layer Voltage and VAR Control Approach with Active Participation from Distributed Solar Generations

Paaso, Esa Aleksi; Liao, Yuan; Cramer, Aaron M.

doi:10.1080/15325008.2015.1026006

Cited by 11 publications

(7 citation statements)

References 22 publications

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“…Each K QP of a PV is optimized by the controller for the same period in the long timescale control. This is different from the method in [11], which performs thousands of power flows to approximate power-voltage sensitivities.…”

Section: Short Timescale Controlmentioning

confidence: 97%

“…The voltage control problem can be formulated as an MINLP form used widely in the literature :

\begin{matrix} M i n f (x, u_{d}, u_{c}) \\ g (x, u_{d}, u_{c}) = 0 \\ h (x, u_{d}, u_{c}) \leq 0 \end{matrix}

where x is the vector of dependent variables (voltages), u d is the vector of discrete variables (tap positions, CB switching states), and u c is the vector of continuous variables (PV power). Details of the optimization model is as follows:…”

Section: Minlp For Voltage Control In the Long Timescalementioning

confidence: 99%

“…The same structure has been also employed widely, e.g. in [10,11]. It basically comprises two layers as follows:…”

Section: Two-layer Voltage Control Structurementioning

confidence: 99%

“…After solving an optimization problem, it determines the settings of all devices and sends control signals to the field equipment. Compared to the method in [11], which solves the MINLP directly, the proposed method in this paper is faster and more effective as illustrated in the Case Study section.…”

Section: Long Timescale Controlmentioning

confidence: 99%

“…The voltage control problem can be formulated as an MINLP form (10) used widely in the literature [1,11]:…”

Section: Formulation Of An Minlp For Voltage Controlmentioning

confidence: 99%

See 4 more Smart Citations

Optimal coordination of voltage controllable devices in distribution systems using power‐based models and quadratic programming

Dao

Chaitusaney

Hayashi

et al. 2017

IEEJ Transactions Elec Engng

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The incorporation of photovoltaic (PV) inverters makes the management of voltage difficult for power system operators. One solution is to consider these inverter‐based devices as controllable reactive power (VAr) sources and to coordinate them with other voltage regulating devices in the distribution system. This paper proposes some acceptable approximations to quickly formulate and solve a mixed‐integer quadratic programming problem to periodically determine the optimal voltage coordination of a load tap changer, voltage regulators, capacitor banks, and PVs on a smart grid platform. The solution to the optimization problem is aided by an iteration‐based algorithm. By using the MATLAB software to carry out the simulation and computation, the method is well verified by comparing its generated result with a trustworthy solution obtained from examining all possible coordinating combinations of voltage regulating devices and PVs in a modified IEEE 34‐bus system. The effectiveness and features of the method are clearly illustrated on that test system by considering a time‐varying load and PV generation. The obtained results demonstrate the practical application of this work to medium‐voltage systems. © 2017 Institute of Electrical Engineers of Japan. Published by John Wiley & Sons, Inc.

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Section: Short Timescale Controlmentioning

confidence: 97%

“…The voltage control problem can be formulated as an MINLP form used widely in the literature :