CONTROLLER AND CONTROL METHOD, HYBRID POWER SYSTEM INCLUDING THE SAME

• Main Authors: TERAMOTO YUICHI, NAGAI TAKUMA, KOGA SHIGENORI, NISHIURA MASANORI
• Format: Patent
• Language: English; Japanese
• Published: 16.03.2015
• Subjects: BASIC ELECTRIC ELEMENTS; ELECTRICITY; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY; REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGYGENERATION, TRANSMISSION OR DISTRIBUTION; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE

PROBLEM TO BE SOLVED: To start a hybrid power system promptly and to operate it stably.SOLUTION: In a controller 90 of a hybrid power system 1 generating power by performing coordination operation combining SOFC 10 and MGT 50, the hybrid power system 1 includes an exhaust fuel gas supply line 27c for supplying exhaust fuel gas from the SOFC 10 to the combustor 52 of the MGT 50, a recirculation line 27b branched from the exhaust fuel gas supply line 27c and distributing the exhaust fuel gas to the SOFC 10, and a flow regulation valve 30 provided on the path of the exhaust fuel gas supply line 27c. The gain for the opening of the flow regulation valve 30 is adjusted depending on the coordination operation state of the SOFC 10 and MGT 50. 【課題】複合発電システムを速やかに起動させ、かつ、安定運転をさせること。【解決手段】ＳＯＦＣ１０とＭＧＴ５０とを組み合わせた連携運転を行って発電する複合発電システム１の制御装置９０であって、複合発電システム１は、ＳＯＦＣ１０からＭＧＴ５０の燃焼器５２に排燃料ガスを供給する排燃料ガス供給ライン２７ｃと、排燃料ガス供給ライン２７ｃから分岐してＳＯＦＣ１０に排燃料ガスを流通させる再循環ライン２７ｂと、排燃料ガス供給ライン２７ｃの経路上に設けられる流量調整弁３０とを具備し、ＳＯＦＣ１０とＭＧＴ５０との連携運転状態に応じて、流量調整弁３０の開度に対するゲインを調整する。【選択図】図１