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NEW EXTENDABLE SINGLE-STAGE MULTI-INPUT 
DC-DC/AC BOOST CONVERTER 
ABSTRACT: 
This project presents a new extendable single-stage multi-input DC-DC/AC 
boost converter. The proposed structure comprises two bidirectional ports in the 
converter central part to interface output load and battery storage, and several 
unidirectional input ports to get powers from different input dc sources. In fact, the 
proposed topology consists of two sets of parallel dc-dc boost converters, which 
are actively controlled to produce two independent output voltage components. 
Choosing two pure dc or two dc-biased sinusoidal values as the converter reference 
voltages, situations of the converter operating in two DC-DC and DC-AC modes 
are provided, respectively.The proposed converter utilizes minimum number of 
power switches and is able to step-up the low level input dc voltages into a high 
level output DC or AC voltage without needing any output filter.The converter 
control system includes several current regulator loops for input dc sources and 
two voltage regulator loops for generating the desired output voltage components, 
resulting in autonomously charging/discharging the battery to balance the power 
flow.
Due to the converter inherent multi-input multi-output (MIMO) control 
system, the small signal model of the converter is extracted and then the pole-placement 
control strategy via integral state feedback is applied for achieving the 
converter control laws. 
BLOCKDIAGRAM: 
BATTERY DC-DC 
CONVERTER 
DC-AC 
CONVERTER 
DC-DC 
CONVERTE 
R 
BATTERY 
LOAD 
DC SOURCE 
DRIVER UNIT 
GATE PULSE GENERATOR
ADVANTAGES: 
1. Simple circuit topology. 
2. High reliability. 
3. Low manufacturing cost. 
4. Size is small. 
APPLICATIONS: 
1. Renewable energy sources. 
2. Industry applications. 
TOOLS: 
1. Orcad/pspice 
2. Matlab/simulation

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JPEEE1428 New Extendable Single-Stage Multi-input DC–DC/AC Boost Converter

  • 1. NEW EXTENDABLE SINGLE-STAGE MULTI-INPUT DC-DC/AC BOOST CONVERTER ABSTRACT: This project presents a new extendable single-stage multi-input DC-DC/AC boost converter. The proposed structure comprises two bidirectional ports in the converter central part to interface output load and battery storage, and several unidirectional input ports to get powers from different input dc sources. In fact, the proposed topology consists of two sets of parallel dc-dc boost converters, which are actively controlled to produce two independent output voltage components. Choosing two pure dc or two dc-biased sinusoidal values as the converter reference voltages, situations of the converter operating in two DC-DC and DC-AC modes are provided, respectively.The proposed converter utilizes minimum number of power switches and is able to step-up the low level input dc voltages into a high level output DC or AC voltage without needing any output filter.The converter control system includes several current regulator loops for input dc sources and two voltage regulator loops for generating the desired output voltage components, resulting in autonomously charging/discharging the battery to balance the power flow.
  • 2. Due to the converter inherent multi-input multi-output (MIMO) control system, the small signal model of the converter is extracted and then the pole-placement control strategy via integral state feedback is applied for achieving the converter control laws. BLOCKDIAGRAM: BATTERY DC-DC CONVERTER DC-AC CONVERTER DC-DC CONVERTE R BATTERY LOAD DC SOURCE DRIVER UNIT GATE PULSE GENERATOR
  • 3. ADVANTAGES: 1. Simple circuit topology. 2. High reliability. 3. Low manufacturing cost. 4. Size is small. APPLICATIONS: 1. Renewable energy sources. 2. Industry applications. TOOLS: 1. Orcad/pspice 2. Matlab/simulation