Integrated Volt/VAR Control - Smart Grid News

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<strong>Volt</strong>/Var Fundamentals‣ Switching capacitors on will reduce the electriccurrent (I) on the line, which will:‣ Reduces the electrical losses (I 2 R)‣ Reduces the amount of energy (kilowatt-hours) required tosupply the existing load and reduces the peak demand on thesystem‣ Indirect control of feeder voltage through CapacitorSwitching which raises the feeder voltage to:‣ Increases the real and reactive load (depending on the kind ofdevice)‣ However, this increases losses in distribution transformers4
<strong>Volt</strong>/Var Fundamentals‣Change in voltage leads to a correspondingchange in power consumption:‣a 1% change in voltage causes a change in kWusually ranging from 0.2% to 1.5%‣Effect of change of voltage on reactive power iseven more significant :‣1% change in voltage causes a change in kvarusually ranging from 2% to 6%The change in load will decay over time, but not to the value before thechange in voltage. The amount and time constant of decay depend on thecharacteristics of the circuit. **KEMA PES Conference June 2005/IEEE Transactions on Power Systems, Vol. 10, No. 2, May 1995; pp. 709-7155
Page 1 and 2: Integrated Volt/VAR ControlMike Pre
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Page 7 and 8: How does IVVC benefit Utilities?7
Page 9 and 10: Business Drivers‣ Pennsylvania PU
Page 11 and 12: What is Integrated Volt-Var Managem
Page 13 and 14: What is Integrated Volt/VAR‣ A Fl
Page 15 and 16: Case 2: Distributed Voltage Regulat
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Page 19 and 20: Functional Requirements‣ Control
Page 21 and 22: Volt-Var System Input Values21
Page 23 and 24: Volt/Var Management Algorithm‣IVV
Page 25 and 26: Volt/Var Management Implementation
Page 27 and 28: Example Architecture- IVVCFieldComm

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