Voltage stability control method of electric springs based on adaptive PI controller

Ma, Gang; Xu, Guchao; Chen, Yixi; Rong, Ju

doi:10.1016/j.ijepes.2017.08.029

Cited by 31 publications

(23 citation statements)

References 13 publications

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“…), which can be a single or a group of electrical loads [26]. The ES smooths out voltage fluctuation by issuing a reactive voltage V ES that is 90° or −90° away from the current I ES flowing through it to the distribution network [27,28]. The angle of V ES leading I ES is θ , and the NCL impedance angle is φ , then the vector diagram of reactive power control is shown in Fig.…”

Section: Model Of Dstatcom and Esmentioning

confidence: 99%

A Cooperative Voltage Control Method for Distribution Network Based on DSTATCOM and ES

Zhang

Lyu

et al. 2020

IEEJ Transactions Elec Engng

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In recent years, with the large-scale access of distributed generation (DG), the line voltage of the distribution network will be offset, which will adversely affect users. This paper aims at the voltage adjustment of the distribution network. Firstly, the reactive power control methods of distributed static synchronous compensator (DSTATCOM) and electric spring (ES) are studied separately, and then a layered cooperative control strategy based on them is proposed, which combines centralized compensation and distributed compensation to stabilize the entire line voltage. The upper layer aims at optimizing the comprehensive factors including voltage offset, user comfort and cost, and applies the dynamic adaptive particle swarm optimization (DAPSO) algorithm to study the optimal scheme of voltage adjustment. The lower layer designs the control loops of the compensation devices in response to the reactive power instruction. Finally, simulation results show that the voltage of the distribution network is effectively controlled.

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Section: Model Of Dstatcom and Esmentioning

confidence: 99%

A Cooperative Voltage Control Method for Distribution Network Based on DSTATCOM and ES

Zhang

Lyu

et al. 2020

IEEJ Transactions Elec Engng

Self Cite

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“…As shown in Figure 1(a), ES consists of measurement module, control loop, PWM power inverter, and low-pass filter (i.e., filter inductance f and filter capacitance f ) [22,23]. The measurement module measures voltage, current, and other real-time data of the distribution network and then sends them to the control loop.…”

Section: Analysis Of Es Principlesmentioning

confidence: 99%

Restraining the Demand Side Power Fluctuation of Active Distribution Network Using 0°/180° Phase Controlled Electric Spring

Chen

et al. 2018

Journal of Electrical and Computer Engineering

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In active distribution network, the random power output by wind/solar distributed generation may cause the stochastic fluctuation of demand side power, which will bring difficulties to power dispatching. In this paper, a method of restraining the demand side power fluctuation of active distribution network is proposed, in which a new power electronic device—electric spring—is applied by 0°/180° phase control strategy. Firstly, the basic principles of electric spring are introduced. Secondly, the reason for demand side power fluctuation of active distribution network is analyzed. After that, the 0°/180° phase control strategy of electric spring is proposed to restrain the demand side power fluctuation of active distribution network and the selection basis of noncritical loads is also obtained. The simulation results show that the method proposed in this paper is effective and the obtained selection basis of noncritical loads is reasonable.

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“…SL is composed of an electric spring (ES) in series with non-critical loads in the Prosumer (such as a household water heater, lighting system) of which the operating voltage can withstand a certain degree of deviation [20]. Nowadays, the flexible control method of SL's active power has been deeply studied [21][22][23][24], so it is certainly significant to use SL in the energy flow management of Prosumer.…”

Section: Introductionmentioning

confidence: 99%

The Prosumer Energy Management Method Based on Smart Load

Lyu

Wang

et al. 2020

IEEE Access

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With the development of household photovoltaic and electric vehicles, household electricity units are no longer traditional power consumers, but also power producers, which are defined as Prosumers. In order to solve the problems of Prosumer energy circulation and its grid-connected control, this paper proposes a new Prosumer energy management method. First, PSO algorithm is used for day-ahead optimization to smooth the load curve of prosumer. Then based on the Smart Load (SL) which can control the active power flexibly, the real-time energy management method of Prosumer is proposed. At last, the multi-Prosumers grid-connected hierarchical control strategy is established combined with tree-shaped and ring-shaped agent technology. Not only can it improve the utilization rate of household photovoltaics, but also it can reduce the adverse effects of photovoltaic and EV large-scale grid-connected in the traditional way. On the basis of participating in the load regulation of the distribution network, Prosumer can improve the stability of its power consumption.

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Voltage stability control method of electric springs based on adaptive PI controller

Cited by 31 publications

References 13 publications

A Cooperative Voltage Control Method for Distribution Network Based on DSTATCOM and ES

A Cooperative Voltage Control Method for Distribution Network Based on DSTATCOM and ES

Restraining the Demand Side Power Fluctuation of Active Distribution Network Using 0°/180° Phase Controlled Electric Spring

The Prosumer Energy Management Method Based on Smart Load

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