A dynamic voltage restorer (DVR) instantly reacts to drop in linevoltage and restores missing portion of waveform from an energy storage device (eg. battery).
To reduce the calculation amount of power flow in large-scale distribution networks, a simplified calculation method for voltagedrop and line losses are researched.
为了减少大规模配电网潮流分析的计算量，探讨了电压降和线损的简化计算方法。
3
When the DC waveform tries to drop back toward zero, the linevoltage becomes less than the 20 volts the capacitor has been charged to.