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首页> 外文期刊>International journal of sustainable engineering >A complex filter-based adaptive integral grid synchronisation algorithm for a PV system
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A complex filter-based adaptive integral grid synchronisation algorithm for a PV system

机译：用于PV系统的复杂滤波器自适应整体电网同步算法

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摘要

The issues such as deterioration of power quality owing to nonlinear loads, sudden changes in load demand, switch to dynamic loads, the occurrence of fault at the load or grid side is addressed using proposed DQ frame Complex Filter-based Adaptive Integral Algorithm (DCFAIA). The objective of the proposed control algorithm is to maintain the frequency at the desired level irrespective of electrical disturbances and also to remove the DC offset present in the synchronising parameters due to nonlinear load, lower the harmonic content in the grid parameters and maintain the power factor unity by compensating the reactive power. The performance of the proposed algorithm is compared with that of conventional algorithms such as Improved Second-Order Generalised Integrator (ISOGI), Third Order Generalised Integrator (TOGI), Least Mean Fourth (LMF). From the comparative assessment, it is observed that the proposed algorithm exhibits superior performance in terms of precision, settling time, steady and transient errors.
机译：由于非线性负载，负载需求的突然变化诸如电力质量的劣化，用基于DQ帧复合滤波器的自适应积分算法（DCFAIA）解决负载或电网侧的故障发生的突然变化。 。所提出的控制算法的目的是保持所需水平的频率，而不管是电气干扰，还拆下了由于非线性负载而在同步参数中存在的DC偏移，降低了网格参数中的谐波含量并保持功率因数通过补偿无功功率来团结。将所提出的算法的性能与传统算法的性能进行比较，例如改进的二阶广义积分器（ISOGI），三阶广义积分器（TOGI），最小值第四（LMF）。从比较评估中，观察到所提出的算法在精确度，稳定时间，稳定和瞬态误差方面表现出优异的性能。

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