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Grid connectable inverter with ripple control signal rejection
Grid connectable inverter with ripple control signal rejection
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机译：可并网逆变器，具有纹波控制信号抑制功能
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#$%^&*AU2011201247B220150611.pdf#####16 Abstract Power inverters that are connected to the grid and which tend to shunt the grid's ripple control signal will have an adverse effect upon the ripple control system as they may attenuate the control signal below the relay sensitivity of devices such as hot water heaters. In order to address this problem there is provided a switch mode device having an output terminal for connection to an electrical network conveying a first signal of predetermined frequency and a second signal of a frequency falling within a predetermined range, the switch mode device being configured to produce a signal at the predetermined frequency at the output terminal and including: a processor coupled to a current sensor for sensing current through the terminal and arranged to cause switching of output switches coupled to said terminal; and a memory storing a firmware product including instructions for execution by the processor, to determine the second signal, and instructions to cause the processor to operate the output switches to apply an anti-phase version of the second signal to the terminal.+Dc Source S1 - C1 L 1 L2 point of Coupling C2 C3 S2 -Dc Source Figure 4 L 2 Network voltatge (235 V rms typical) + Ripple control signal 1-12V rms Current Coupling impedance (0.15 Ohm @ 50 Hz) Inverter measurement (approaches infinity as the current at 281 Hz is reduced towards zero @ 281 Hz)) Figure 5
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机译：＃$％^＆* AU2011201247B220150611.pdf #####16抽象连接到电网且倾向于并联的功率逆变器电网的纹波控制信号将对纹波产生不利影响控制系统，因为它们可能会衰减继电器下方的控制信号热水器等设备的灵敏度。为了解决这个问题，提供了一种开关模式设备具有一个输出端子，用于连接到输送电网的电网预定频率的第一信号和频率的第二信号落入预定范围内，所述开关模式设备被配置在输出端子以预定频率产生信号，并且包含：与电流传感器耦合的处理器，用于感测流经传感器的电流端子并布置成引起耦合到所述输出开关的输出开关的切换终奌站;和存储固件产品的存储器，包括由处理器执行的指令，以确定第二个信号，以及使处理器操作输出开关的指令将第二个信号的反相版本应用到终端。+直流电源S1-C1 L 1 L2耦合点C2 C3S2-Dc来源图42级网络电压（典型值为235 V rms）+纹波控制信号1-12V rms电流耦合阻抗（0.15欧姆@ 50 Hz）逆变器测量（随着281 Hz处的电流在281 Hz处减小为零，接近无穷大）图5
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