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| Inverter System Base on the New Modulation Method |
| Hong Jie1, Li Ling2, Yang Liuqiong3, Yang Jian4 |
1.Shanghai Surpass Sun Electric Co., Ltd , Shanghai 200331;
2. Shanghai Technical Citytrain Construction Co., Ltd, Shanghai 20003;
3. Liuzhou Chemical Industry Co., Ltd, Liuzhou, Guangxi 545002;
4. Liuzhou Chemical Industry Group Co., Ltd, Liuzhou 545002 |
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Abstract Modulation method of inverter with single polar modulation and double polar modulation, the traditional single polar modulation method is low switching loss, high efficiency, but the common-mode interference is more serious; and the double polar modulation is high switching loss, low efficiency, but can resist common-mode interference. This paper introduce a new modulation method, combines the advantages of the traditional single polar and double polar modulation methods, which not only can reduce the common-mode interference but also improve the efficiency of the inverter; inverter can be controlled the off-grid and on-grid operation status base on the new modulation method. The paper through simulation shows the advantage of modulation method and feasibility of this system.
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Received: 26 June 2014
Published: 23 January 2014
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2013, Vol. 14 
