Method and apparatus for identifying proper regulation method based on average voltage change between tap steps for voltage regulators
Identifying proper regulation method based on average voltage change between tap steps for voltage regulators. In response to a first tap step index being different from a second tap step index of a preceding tap operation, an electronic processor determines whether an average of a first voltage change of the current tap operation and a second voltage change of the preceding tap operation satisfies a voltage threshold. The electronic processor is configured to change a regulation direction of the voltage regulator when the average satisfies the voltage threshold and maintain the regulation direction of the voltage regulator when the average does not satisfy the voltage threshold. The electronic processor is configured to provide regulation settings to the voltage regulator corresponding to a current regulation mode and regulation direction of the voltage regulator.
1 . A voltage regulator controller for controlling a voltage regulator of a power distribution system, the voltage regulator controller comprising:
an electronic processor configured to
in response to a condition being satisfied
determine whether an average of a first voltage change of a current tap operation and a second voltage change of a preceding tap operation satisfies a voltage threshold,
change a regulation direction of the voltage regulator when the average satisfies the voltage threshold, and
maintain the regulation direction of the voltage regulator when the average does not satisfy the voltage threshold; and
provide regulation settings to the voltage regulator corresponding to a current regulation mode and the regulation direction of the voltage regulator.
2 . The voltage regulator controller of claim 1 , wherein the electronic processor is configured to
when changing the regulation direction from a reverse direction to a forward direction determine a direction of power flow;
provide forward regulation mode settings to the voltage regulator when the power flow direction is forward; and
provide distributed generation mode settings to the voltage regulator when the power flow direction is reverse.
3 . The voltage regulator controller of claim 1 , wherein the regulation settings include one or more selected from a group consisting of a band center voltage, a band width of voltage regulation, a line drop compensation resistance, and a line drop compensation reactance.
4 . The voltage regulator controller of claim 1 , wherein the electronic processor is configured to
determine that the condition is satisfied in response to a first tap step index of the current tap operation being different from a second tap step index of the preceding tap operation.
5 . The voltage regulator controller of claim 4 , wherein the voltage threshold is a first voltage threshold, wherein the electronic processor is configured to
in response to the first tap step index being same as the second tap step index
determine whether a difference between the first voltage change and the second voltage change satisfies a second voltage threshold,
change the regulation direction of the voltage regulator when the difference satisfies the second voltage threshold, and
determine that the condition is satisfied when the difference does not satisfy the second voltage threshold.
6 . The voltage regulator controller of claim 5 , wherein the first tap step index and the second tap step index indicate whether a corresponding tap step was even or odd, wherein each alternative tap step of the voltage regulator are denoted as odd tap steps and remaining tap steps of the voltage regulator are denoted as even tap steps.
7 . The voltage regulator controller of claim 1 , wherein the electronic processor is configured to
switch a voltage measurement side of the voltage regulator when changing the regulation direction.
8 . A method for controlling a voltage regulator of a power distribution system, the method comprising:
in response to a condition being satisfied
determining whether an average of a first voltage change of a current tap operation and a second voltage change of a preceding tap operation satisfies a voltage threshold,
changing a regulation direction of the voltage regulator when the average satisfies the voltage threshold, and
maintaining the regulation direction of the voltage regulator when the average does not satisfy the voltage threshold; and
providing regulation settings to the voltage regulator corresponding to a current regulation mode and the regulation direction of the voltage regulator.
9 . The method of claim 8 , further comprising:
when changing the regulation direction from a reverse direction to a forward direction determining a direction of power flow;
providing forward regulation mode settings to the voltage regulator when the power flow direction is forward; and
providing distributed generation mode settings to the voltage regulator when the power flow direction is reverse.
10 . The method of claim 8 , wherein the regulation settings include one or more selected from a group consisting of a band center voltage, a band width of voltage regulation, a line drop compensation resistance, and a line drop compensation reactance.
11 . The method of claim 8 , further comprising:
determining that the condition is satisfied in response to a first tap step index of the current tap operation being different from a second tap step index of the preceding tap operation.
12 . The method of claim 11 , wherein the voltage threshold is a first voltage threshold, further comprising:
in response to the first tap step index being same as the second tap step index
determining whether a difference between the first voltage change and the second voltage change satisfies a second voltage threshold,
changing the regulation direction of the voltage regulator when the difference satisfies the second voltage threshold, and
determining that the condition is satisfied when the difference does not satisfy the second voltage threshold.
13 . The method of claim 12 , wherein the first tap step index and the second tap step index indicate whether a corresponding tap step was even or odd, wherein each alternative tap step of the voltage regulator are denoted as odd tap steps and remaining tap steps of the voltage regulator are denoted as even tap steps.
14 . The method of claim 8 , further comprising:
switching a voltage measurement side of the voltage regulator when changing the regulation direction.
15 . A voltage regulator controller for controlling a voltage regulator of a power distribution system, the voltage regulator controller comprising:
an electronic processor configured to
in response to a first tap step index of a current tap operation being different from a second tap step index of a preceding tap operation
determine whether an average of a first voltage change of the current tap operation and a second voltage change of the preceding tap operation satisfies a voltage threshold,
change a regulation direction of the voltage regulator when the average satisfies the voltage threshold, and
maintain the regulation direction of the voltage regulator when the average does not satisfy the voltage threshold.
16 . The voltage regulator controller of claim 15 , wherein the first tap step index and the second tap step index indicate whether a corresponding tap step was even or odd, wherein each alternative tap step of the voltage regulator are denoted as odd tap steps and remaining tap steps of the voltage regulator are denoted as even tap steps.
17 . The voltage regulator controller of claim 15 , wherein the electronic processor is configured to
when changing the regulation direction from a reverse direction to a forward direction determine a direction of power flow;
provide forward regulation mode settings to the voltage regulator when the power flow direction is forward; and
provide distributed generation mode settings to the voltage regulator when the power flow direction is reverse.
18 . The voltage regulator controller of claim 15 , wherein the electronic processor is configured to provide regulation settings include one or more selected from a group consisting of a band center voltage, a band width of voltage regulation, a line drop compensation resistance, and a line drop compensation reactance to the voltage regulator.
19 . The voltage regulator controller of claim 15 , wherein the voltage threshold is a first voltage threshold, wherein the electronic processor is configured to
in response to the first tap step index being same as the second tap step index
determine whether a difference between the first voltage change and the second voltage change satisfies a second voltage threshold,
change the regulation direction of the voltage regulator when the difference satisfies the second voltage threshold, and
when the difference does not satisfy the second voltage threshold
determine whether the average satisfies the first voltage threshold,
change the regulation direction of the voltage regulator when the average satisfies the first voltage threshold, and
maintain the regulation direction of the voltage regulator when the average does not satisfy the first voltage threshold.
20 . The voltage regulator controller of claim 15 , wherein the electronic processor is configured to
switch a voltage measurement side of the voltage regulator when changing the regulation direction.