Control method, device and system for wind power plant to participate in rapid frequency modulation and voltage regulation of power grid
A technology of frequency regulation, voltage regulation and control device, which is applied in wind power generation, parallel feeding arrangement of a single network, etc. It can solve the problems of long cycle and inability to adjust quickly, and achieve the effect of simple implementation and improved regulation efficiency.
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Embodiment 1
[0054] This embodiment is a control method for wind farms to participate in fast frequency and voltage regulation of the power grid, including:
[0055] Obtain real-time voltage and current data of the grid-connected point of the wind farm;
[0056] Calculating the running state of the grid-connected point based on the acquired data, the running state includes frequency, active power, reactive power and power factor;
[0057] Judging whether the voltage and frequency of the current grid-connected point exceed the regulation dead zone according to the operating status of the grid-connected point;
[0058] In response to the voltage and frequency of the current grid-connected point exceeding the regulation dead zone, perform the following operations:
[0059] Calculate the active and reactive power regulation data of the wind farm according to the preset active power regulation rules and reactive power regulation rules, and according to the real-time voltage and current data an...
Embodiment 2
[0083] refer to image 3 As shown, this embodiment is a control device for wind farms to participate in fast frequency and voltage regulation of the power grid, including:
[0084] The real-time electrical quantity acquisition module is configured to acquire real-time voltage and current data of the grid-connected point of the wind farm;
[0085] The running state calculation module is configured to calculate the grid running state of the grid-connected point based on the acquired data, and then judge whether the frequency and voltage of the current grid-connected point exceed the regulation dead zone;
[0086] The power regulation calculation module is configured to perform the following operations in response to the voltage and frequency of the current grid-connected point exceeding the regulation dead zone:
[0087] Calculate the active and reactive power regulation data of the wind farm according to the preset active power regulation rules and reactive power regulation ru...
Embodiment 3
[0095] refer to image 3 , the wind farm in this embodiment participates in the control system of fast frequency and voltage regulation of the power grid, including the wind farm AGC / AVC system and the fast frequency and voltage regulation control device;
[0096] The fast frequency and voltage regulation control device executes the method of Embodiment 1, and when the voltage and frequency of the grid-connected point exceed the regulation dead zone, the active and reactive power adjustment data of the wind farm are calculated; and then sent to the AGC / AVC system of the wind farm A power adjustment control command for the power adjustment data;
[0097] The AGC / AVC system of the wind farm performs power regulation according to the received power regulation control command.
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