Although the distributed renewable energy source is an advisable solution for ac microgrids to reduce fuel consumption and CO₂ emission, the fluctuation and uncertainty of renewable energy source also brings significant problem to the safe and stable operation. Based on this, a disturbance observer method based on generalized wind/solar/battery consistent model is proposed in the primary control level. Firstly, it is through establishing the analogy model between the interface wind rectifier circuit and the interface solar/battery boost circuit that the equivalent model of the isomorphic solar/wind/battery with single input and single output (SISO) is first proposed in this article. With this effort, the wind, solar, and battery can achieve the consistency of the generalized model, which reduces the design complexity of the following control strategy. Furthermore, in order to solve the fluctuation and uncertainty problems, a continuous-time disturbance observer is introduced to control the equivalent generalized SISO model, which can achieve quick response, stable operation, and no-difference adjustment under disturbance. Finally, the effectiveness of the proposed method is verified by simulation results.

中文翻译：

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基于干扰观测器的交流微电网广义风/太阳能/电池一致性控制策略

尽管分布式可再生能源是交流微电网减少燃料消耗和 CO ₂的明智解决方案排放、可再生能源的波动性和不确定性也给安全稳定运行带来了重大问题。在此基础上，提出了一种基于广义风/太阳能/电池一致性模型的初级控制级扰动观测方法。首先，通过建立接口风能整流电路和接口太阳能/电池升压电路的类比模型，本文首次提出了单输入单输出同构太阳能/风能/电池等效模型（SISO）。 . 通过这种努力，风能、太阳能和电池可以实现广义模型的一致性，从而降低了后续控制策略的设计复杂度。此外，为了解决波动和不确定性问题，引入连续时间扰动观测器对等效广义SISO模型进行控制，实现响应快、运行稳定、扰动无差调节。最后，通过仿真结果验证了所提方法的有效性。