Step-down self-energy-harvesting circuit and method for medium-high-voltage direct-current power distribution network

• Main Authors: YUAN XIAODONG, ZHU WEIPING, TAO JIAGUI, YUAN YUBO, FEI YIJUN, YANG JINGGANG, SHI MINGMING, YUAN DONG, CHEN QING
• Format: Patent
• Language: Chinese; English
• Published: 22.11.2019
• Subjects: APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC,OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWERSUPPLY SYSTEMS; CONTROL OR REGULATION THEREOF; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUTPOWER; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; ELECTRICITY; GENERATION

The embodiment of the invention discloses a step-down self-energy-harvesting circuit and method for a medium-high-voltage direct-current power distribution network. The circuit comprises N half-bridgemodules and a full-bridge module, wherein the N is an integer greater than or equal to 3; each half-bridge module comprises a positive terminal and a negative terminal; the full-bridge module comprises a positive terminal and a negative terminal; for the first to (N-1)th half-bridge modules, the positive terminal of the first half-bridge module is connected with the positive electrode of the direct-current power distribution network, the negative terminal of each previous half-bridge module is electrically connected with the positive terminal of the next half-bridge module, the negative terminal of the (N-1)th half-bridge module is electrically connected with the positive terminal of the full-bridge module, the negative terminal of the full-bridge module is electrically connected with thepositive terminal of the