Controller parameter tuning method, medium and equipment applied to HVDC transmission
A technology of high-voltage direct current transmission and high-voltage direct current, applied in the direction of electric power transmission AC network, reducing/preventing power oscillation, etc., can solve the problems of large amount of calculation and low efficiency, and achieve high optimization efficiency, high accuracy and reliability, and improved Effect of operating characteristics
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Embodiment 1
[0109] This embodiment discloses a controller parameter tuning method applied to HVDC transmission, such as figure 1 As shown, the steps are as follows:
[0110] S1. Obtain network parameters and controller parameters of the HVDC power transmission system. Among them, the rectifier side of the HVDC power transmission system adopts constant current control, the inverter side adopts constant voltage control or predictive constant turn-off angle control, and the phase-locked loop adopts synchronous rotating coordinate phase-locked loop.
[0111] The controller parameters include: the proportional coefficient K of the constant current controller PIdc and integral coefficient K iIdc , The proportional coefficient K of the phase-locked loop on the rectifier side pPLL1 and integral coefficient K iPLL1 , The proportional coefficient K of the phase-locked loop on the inverter side pPLL2 and integral coefficient K iPLL2 , The proportional coefficient K of the constant voltage cont...
Embodiment 2
[0208] This embodiment discloses a storage medium, which stores a program. When the program is executed by a processor, the controller parameter setting method for high-voltage direct current transmission described in Embodiment 1 is implemented, specifically as follows:
[0209] S1. Obtain network parameters and controller parameters of the HVDC transmission system;
[0210] S2. Subdividing the HVDC transmission system into sub-modules, and then describing each sub-module with differential equations and algebraic equations based on network parameters and controller parameters, to obtain a state space model of the HVDC transmission system;
[0211] S3. At the equilibrium point of the state space model, the state space model is linearized to obtain the state space matrix A and the input matrix B and the small disturbance dynamic model of the HVDC transmission system;
[0212] S4. Determine the research range and change step size of each controller parameter, and calculate the e...
Embodiment 3
[0218] This embodiment discloses a computing device, including a processor and a memory for storing executable programs of the processor. When the processor executes the program stored in the memory, the control applied to high-voltage direct current transmission as described in Embodiment 1 is realized. The tuning method of the device parameters is as follows:
[0219] S1. Obtain network parameters and controller parameters of the HVDC transmission system;
[0220] S2. Subdividing the HVDC transmission system into sub-modules, and then describing each sub-module with differential equations and algebraic equations based on network parameters and controller parameters, to obtain a state space model of the HVDC transmission system;
[0221] S3. At the equilibrium point of the state space model, the state space model is linearized to obtain the state space matrix A and the input matrix B and the small disturbance dynamic model of the HVDC transmission system;
[0222] S4. Determ...
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