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Design method of distributed model prediction controller of automatic power generation control system

A technology of automatic power generation control and model prediction, applied in photovoltaic power generation, wind power generation, sustainable buildings, etc.

Inactive Publication Date: 2020-03-27
NORTH CHINA ELECTRIC POWER UNIV (BAODING)
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  • Claims
  • Application Information

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Problems solved by technology

Due to the intermittency and uncertainty of new energy, its grid connection brings new challenges to power system control

Method used

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  • Design method of distributed model prediction controller of automatic power generation control system
  • Design method of distributed model prediction controller of automatic power generation control system
  • Design method of distributed model prediction controller of automatic power generation control system

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Embodiment

[0162] Taking the two-area automatic power generation control system as an example, area one includes thermal power units and wind power units, and area two includes thermal power units and photovoltaic power generation.

[0163] Predictive control parameter value is: N C =5,N P =15,T=0.1, q i =diag(10 0 1), q j =diag(0.1 0 0 0.1),

[0164] The values ​​of the initial parameters of GFWA are as follows:

[0165] t=2,λ=150,A=0.2,C a =1.2,C r =0.9, σ=0.2, and the maximum number of iterations is set to 80 times.

[0166] The parameters of the two-area automatic power generation control system are as follows:

[0167] T Gi =0.08s, T Ti =0.3s, T Pi =20s, K Pi =120Hz / p.u.,K S12 =-K S21 =0.5p.u. / MW, R i =2.4Hz / p.u., K Bi =0.425; K WTS =1, T WTS = 1.5s; K PV =1,T PV = 1.8s.

[0168] The capacity of wind power and photovoltaic power generation is 150MW, and the capacity of thermal power units in the two regions is 1000MW. Assuming that area 1 adds a load distu...

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Abstract

The invention relates to a design method of a distributed model prediction controller of an automatic power generation control system. The design method comprises the following steps: building simulation models of the automatic power generation control system of a regional interconnection power system, wherein the simulation models comprise a wind power generation model and a photovoltaic power generation model; according to the simulation models of the automatic power generation control system, designing a distributed model prediction control algorithm and establishing and optimizing a targetfunction; determining a constraint condition according to the actual operation condition of the automatic power generation control system, and processing the constraint; and according to the target function and the constraint condition, optimizing by adopting a guided firework algorithm to obtain controller output. According to the design method, the dynamic performance of the interconnected power grid automatic power generation control system is effectively improved, and the safe and stable operation of a power system is ensured.

Description

technical field [0001] The invention belongs to the technical field of electric power system automatic control, and relates to a design method for a controller of an automatic power generation control system, in particular to a design method for a distributed model predictive controller of an automatic power generation control system for a power grid including wind power generation and photovoltaic power generation. Background technique [0002] Automatic generation control (AGC) is a key link to maintain the stable operation of the power system. By ensuring the balance between power generation and load demand, the system frequency is kept constant, and the exchange power of the tie line is maintained at the rated value. [0003] In the past few decades, electricity mainly comes from the combustion of traditional fossil energy sources such as coal, oil, and natural gas, which has led to serious resource shortages and environmental pollution problems. This promotes the devel...

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Application Information

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IPC IPC(8): H02J3/38
CPCY02B10/10Y02E10/56Y02E10/76
Inventor 孔小兵刘向杰
Owner NORTH CHINA ELECTRIC POWER UNIV (BAODING)
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