FILTER DEVICE AND POWER CONVERSION DEVICE

• Main Author: TAIRA TORU
• Format: Patent
• Language: English; Japanese
• Published: 05.07.2018
• 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

PROBLEM TO BE SOLVED: To improve cooling performance of a filter device to be used for a power conversion device.SOLUTION: A filter device connected between an AC power supply 1 and a PWM converter 2 comprises: a first AC reactor 3; a second AC reactor 4 connected between the PWM converter 2 and the first AC reactor 3; a filter capacitor 5 whose one end is connected to a connection point 9 between the first AC reactor 3 and the second AC reactor 4; and a frame 15 including a cooling air intake part 16 and a cooling air discharge part 17, the frame housing the first AC reactor 3 and the second AC reactor 4. The first AC reactor 3 is disposed on the windward side of the second AC reactor 4 and has an outer shape smaller than that of the second AC reactor 4 in a cross-sectional view seen from the windward side to the leeward side.SELECTED DRAWING: Figure 1 【課題】電力変換装置に用いられるフィルタ装置の冷却性能を向上する。【解決手段】交流電源１とＰＷＭコンバータ２との間に接続されるフィルタ装置において、第１ＡＣリアクトル３と、ＰＷＭコンバータ２と第１ＡＣリアクトル３との間に接続される第２ＡＣリアクトル４と、第１ＡＣリアクトル３と第２ＡＣリアクトル４との接続点９に一端が接続されたフィルタコンデンサ５と、冷却風取込部１６と冷却風排出部１７とを有し、第１ＡＣリアクトル３と第２ＡＣリアクトル４を収納した筐体１５と、を備え、第１ＡＣリアクトル３は、第２ＡＣリアクトル４の風上側に配置され、風上側から風下側をみた断面視において、外形が前記第２ＡＣリアクトル４よりも小さい【選択図】図１