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Droop controller design methods for isolated DC-DC converter in DC grid battery energy storage applications

机译:DC网格电池储能应用中隔离DC-DC转换器的下垂控制器设计方法

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Droop control is a potential solution to assign the power share for multiple DC power sources such as battery energy storage systems in a DC micro-grid, without demanding communication requirement. The design objective of the droop controller is to regulate the DC-DC converter virtual output impedance. As the major contribution of this paper, two types of DC droop controllers are proposed for the isolated DC-DC converter in battery energy storage applications in DC grid. One method provides cost effective solution by only designing the output voltage compensator without current sensor. The other method requires a current-feedback loop but provides accurate and linear output droop. An isolated DC-DC converter prototype was built and the test results were reported for both droop controller designs.
机译:下垂控制是一个潜在的解决方案,用于为多个直流电源(例如DC微电网)等多个直流电源的功率共享,而不要求通信要求。 下垂控制器的设计目标是调节DC-DC转换器虚拟输出阻抗。 作为本文的主要贡献,提出了两种类型的DC下垂控制器,用于DC网格中的电池储能应用中的隔离式DC-DC转换器。 一种方法通过仅在没有电流传感器的输出电压补偿器的情况下提供具有成本有效的解决方案。 其他方法需要电流反馈回路,但提供准确和线性输出下垂。 构建了孤立的DC-DC转换器原型,并为垂直控制器设计报告了测试结果。

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