发明名称 |
NEW AND RENEWABLE ENERGY GENERATION SYSTEM AND ITS ANTI ISLANDING PROTECTING METHOD |
摘要 |
PURPOSE: A new and renewable energy generation system and its anti islanding protecting method are provided to improve power quality by using a hybrid method. CONSTITUTION: An inverter(120) changes DC voltage into AC voltage. A phase fixing loop(220) calculates the phase and the frequency of the output voltage of the inverter. A phase shifter(260) produces a current phase reference value for controlling the phase of the output current of the inverter. A current regulator(360) produces a current control signal by using a current amplitude operation value. A PWM controller(400) outputs a PWM control signal to the inverter. [Reference numerals] (180) Voltage coordinate converter 3Ø→2Ø→DQ; (200) Current coordinate converter 3Ø→2Ø→DQ; (220) Phase fixing loop(PLL); (240) NDZ setter; (260) Phase shifter; (280) Reactive power compensator; (360) Current regulator; (380) Output coordinate converter DQ→2Ø→3Ø; (400) PWM controller; (AA) Load |
申请公布号 |
KR101243896(B1) |
申请公布日期 |
2013.03.20 |
申请号 |
KR20110089489 |
申请日期 |
2011.09.05 |
申请人 |
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发明人 |
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分类号 |
H02J3/38;H02J3/46;H02M7/48 |
主分类号 |
H02J3/38 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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