Dynamic instability of decentralized wind energy farms is a major issue to deliver continuous green energy to electricity consumers. This instability is caused by variations of voltage and frequency parameters due to intermittencies in wind power. Previously, droop control and inverter-based schemes have been proposed to regulate the voltage by balancing reactive power, while inertial control, digital mapping technique of proportional-integral-differential (PID) controller and efficiency control strategy have been developed to regulate the frequency. In this paper, voltage stability is improved by a new joint strategy of distribution static compensator (DSTATCOM) six-pulse controller based reactive power management among decentralized wind turbines and controlled charging of capacitor bank. The frequency stability is ensured by a joint coordinated utilization of capacitor bank and distributed wind power turbines dispatching through a new DSTATCOM six-pulse controller scheme. In both strategies, power grid is contributed as a backup source with less priority. These new joint strategies for voltage and frequency stabilities will enhance the stable active power delivery to end users. A system test case is developed to verify the proposed joint strategies. The test results of the proposed new schemes are proved to be effective in terms of stability improvement of voltage, frequency and active power generation.

中文翻译：

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有效分配静态补偿器改善分散风电场的动态稳定性

分散式风能发电场的动态不稳定性是向电力消费者提供持续绿色能源的主要问题。这种不稳定性是由风力发电的间歇性引起的电压和频率参数的变化引起的。以前，已经提出了下垂控制和基于逆变器的方案来通过平衡无功功率来调节电压，而惯性控制，比例积分微分（PID）控制器的数字映射技术和效率控制策略已经被开发来调节频率。本文通过基于分布式静态补偿器（DSTATCOM）的六脉冲控制器的新型联合策略提高了电压的稳定性，该分布式脉冲补偿器基于分布式风力涡轮机之间的无功功率管理，并控制电容器组的充电。通过新的DSTATCOM六脉冲控制器方案联合使用电容器组和分布式风力涡轮机，可以确保频率稳定性。在这两种策略中，电网都是优先级较低的备用电源。这些新的电压和频率稳定性联合策略将增强向终端用户的稳定有功功率传输。开发了一个系统测试用例，以验证所提出的联合策略。所提出的新方案的测试结果在电压，频率和有功功率的稳定性改善方面被证明是有效的。这些新的电压和频率稳定性联合策略将增强向终端用户的稳定有功功率传输。开发了一个系统测试用例，以验证所提出的联合策略。所提出的新方案的测试结果在电压，频率和有功功率的稳定性改善方面被证明是有效的。这些新的电压和频率稳定性联合策略将增强向终端用户的稳定有功功率传输。开发了一个系统测试用例，以验证所提出的联合策略。所提出的新方案的测试结果在电压，频率和有功功率的稳定性改善方面被证明是有效的。